git.maemo.org Git - monky/blob - src/core.c

   1 /* -*- mode: c; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
   2  * vim: ts=4 sw=4 noet ai cindent syntax=c
   3  *
   4  * Conky, a system monitor, based on torsmo
   5  *
   6  * Any original torsmo code is licensed under the BSD license
   7  *
   8  * All code written since the fork of torsmo is licensed under the GPL
   9  *
  10  * Please see COPYING for details
  11  *
  12  * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
  13  * Copyright (c) 2005-2009 Brenden Matthews, Philip Kovacs, et. al.
  14  *      (see AUTHORS)
  15  * All rights reserved.
  16  *
  17  * This program is free software: you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License as published by
  19  * the Free Software Foundation, either version 3 of the License, or
  20  * (at your option) any later version.
  21  *
  22  * This program is distributed in the hope that it will be useful,
  23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  * GNU General Public License for more details.
  26  * You should have received a copy of the GNU General Public License
  27  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  28  *
  29  */
  30
  31 /* local headers */
  32 #include "core.h"
  33 #include "text_object.h"
  34 #include "algebra.h"
  35 #include "build.h"
  36 #include "colours.h"
  37 #include "combine.h"
  38 #include "diskio.h"
  39 #include "exec.h"
  40 #ifdef X11
  41 #include "fonts.h"
  42 #endif
  43 #include "fs.h"
  44 #ifdef HAVE_ICONV
  45 #include "iconv_tools.h"
  46 #endif
  47 #include "logging.h"
  48 #include "mixer.h"
  49 #include "mail.h"
  50 #include "mboxscan.h"
  51 #include "net_stat.h"
  52 #ifdef NVIDIA
  53 #include "nvidia.h"
  54 #endif
  55 #include "read_tcp.h"
  56 #include "scroll.h"
  57 #include "specials.h"
  58 #include "temphelper.h"
  59 #include "template.h"
  60 #include "tailhead.h"
  61 #include "timeinfo.h"
  62 #include "top.h"
  63
  64 #ifdef NCURSES
  65 #include <ncurses.h>
  66 #endif
  67
  68 /* check for OS and include appropriate headers */
  69 #if defined(__linux__)
  70 #include "linux.h"
  71 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
  72 #include "freebsd.h"
  73 #elif defined(__OpenBSD__)
  74 #include "openbsd.h"
  75 #endif
  76
  77 /* OS specific prototypes to be implemented by linux.c & Co. */
  78 void update_entropy(void);
  79
  80 #include <string.h>
  81 #include <ctype.h>
  82
  83 /* strip a leading /dev/ if any, following symlinks first
  84  *
  85  * BEWARE: this function returns a pointer to static content
  86  *         which gets overwritten in consecutive calls. I.e.:
  87  *         this function is NOT reentrant.
  88  */
  89 const char *dev_name(const char *path)
  90 {
  91         static char buf[255];   /* should be enough for pathnames */
  92         ssize_t buflen;
  93
  94         if (!path)
  95                 return NULL;
  96
  97 #define DEV_NAME(x) \
  98   x != NULL && strlen(x) > 5 && strncmp(x, "/dev/", 5) == 0 ? x + 5 : x
  99         if ((buflen = readlink(path, buf, 254)) == -1)
 100                 return DEV_NAME(path);
 101         buf[buflen] = '\0';
 102         return DEV_NAME(buf);
 103 #undef DEV_NAME
 104 }
 105
 106 static struct text_object *new_text_object_internal(void)
 107 {
 108         struct text_object *obj = malloc(sizeof(struct text_object));
 109         memset(obj, 0, sizeof(struct text_object));
 110         return obj;
 111 }
 112
 113 static struct text_object *create_plain_text(const char *s)
 114 {
 115         struct text_object *obj;
 116
 117         if (s == NULL || *s == '\0') {
 118                 return NULL;
 119         }
 120
 121         obj = new_text_object_internal();
 122
 123         obj->type = OBJ_text;
 124         obj->data.s = strndup(s, text_buffer_size);
 125         return obj;
 126 }
 127
 128 /* construct_text_object() creates a new text_object */
 129 struct text_object *construct_text_object(const char *s, const char *arg, long
 130                 line, void **ifblock_opaque, void *free_at_crash)
 131 {
 132         // struct text_object *obj = new_text_object();
 133         struct text_object *obj = new_text_object_internal();
 134
 135         obj->line = line;
 136
 137 /* helper defines for internal use only */
 138 #define __OBJ_HEAD(a, n) if (!strcmp(s, #a)) { \
 139         obj->type = OBJ_##a; add_update_callback(n);
 140 #define __OBJ_IF obj_be_ifblock_if(ifblock_opaque, obj)
 141 #define __OBJ_ARG(...) if (!arg) { CRIT_ERR(obj, free_at_crash, __VA_ARGS__); }
 142
 143 /* defines to be used below */
 144 #define OBJ(a, n) __OBJ_HEAD(a, n) {
 145 #define OBJ_ARG(a, n, ...) __OBJ_HEAD(a, n) __OBJ_ARG(__VA_ARGS__) {
 146 #define OBJ_IF(a, n) __OBJ_HEAD(a, n) __OBJ_IF; {
 147 #define OBJ_IF_ARG(a, n, ...) __OBJ_HEAD(a, n) __OBJ_ARG(__VA_ARGS__) __OBJ_IF; {
 148 #define END } } else
 149
 150 #ifdef X11
 151         if (s[0] == '#') {
 152                 obj->type = OBJ_color;
 153                 obj->data.l = get_x11_color(s);
 154         } else
 155 #endif /* X11 */
 156 #ifdef __OpenBSD__
 157         OBJ(freq, 0)
 158 #else
 159         OBJ(acpitemp, 0)
 160                 obj->data.i = open_acpi_temperature(arg);
 161         END OBJ(acpiacadapter, 0)
 162         END OBJ(freq, 0)
 163 #endif /* !__OpenBSD__ */
 164                 get_cpu_count();
 165                 if (!arg || !isdigit(arg[0]) || strlen(arg) >= 2 || atoi(&arg[0]) == 0
 166                                 || atoi(&arg[0]) > info.cpu_count) {
 167                         obj->data.i = 1;
 168                         /* NORM_ERR("freq: Invalid CPU number or you don't have that many CPUs! "
 169                                 "Displaying the clock for CPU 1."); */
 170                 } else {
 171                         obj->data.i = atoi(&arg[0]);
 172                 }
 173         END OBJ(freq_g, 0)
 174                 get_cpu_count();
 175                 if (!arg || !isdigit(arg[0]) || strlen(arg) >= 2 || atoi(&arg[0]) == 0
 176                                 || atoi(&arg[0]) > info.cpu_count) {
 177                         obj->data.i = 1;
 178                         /* NORM_ERR("freq_g: Invalid CPU number or you don't have that many "
 179                                 "CPUs! Displaying the clock for CPU 1."); */
 180                 } else {
 181                         obj->data.i = atoi(&arg[0]);
 182                 }
 183         END OBJ_ARG(read_tcp, 0, "read_tcp: Needs \"(host) port\" as argument(s)")
 184                 parse_read_tcp_arg(obj, arg, free_at_crash);
 185 #if defined(__linux__)
 186         END OBJ(voltage_mv, 0)
 187                 get_cpu_count();
 188                 if (!arg || !isdigit(arg[0]) || strlen(arg) >= 2 || atoi(&arg[0]) == 0
 189                                 || atoi(&arg[0]) > info.cpu_count) {
 190                         obj->data.i = 1;
 191                         /* NORM_ERR("voltage_mv: Invalid CPU number or you don't have that many "
 192                                 "CPUs! Displaying voltage for CPU 1."); */
 193                 } else {
 194                         obj->data.i = atoi(&arg[0]);
 195                 }
 196         END OBJ(voltage_v, 0)
 197                 get_cpu_count();
 198                 if (!arg || !isdigit(arg[0]) || strlen(arg) >= 2 || atoi(&arg[0]) == 0
 199                                 || atoi(&arg[0]) > info.cpu_count) {
 200                         obj->data.i = 1;
 201                         /* NORM_ERR("voltage_v: Invalid CPU number or you don't have that many "
 202                                 "CPUs! Displaying voltage for CPU 1."); */
 203                 } else {
 204                         obj->data.i = atoi(&arg[0]);
 205                 }
 206
 207 #ifdef HAVE_IWLIB
 208         END OBJ(wireless_essid, &update_net_stats)
 209                 parse_net_stat_arg(obj, arg, free_at_crash);
 210         END OBJ(wireless_mode, &update_net_stats)
 211                 parse_net_stat_arg(obj, arg, free_at_crash);
 212         END OBJ(wireless_bitrate, &update_net_stats)
 213                 parse_net_stat_arg(obj, arg, free_at_crash);
 214         END OBJ(wireless_ap, &update_net_stats)
 215                 parse_net_stat_arg(obj, arg, free_at_crash);
 216         END OBJ(wireless_link_qual, &update_net_stats)
 217                 parse_net_stat_arg(obj, arg, free_at_crash);
 218         END OBJ(wireless_link_qual_max, &update_net_stats)
 219                 parse_net_stat_arg(obj, arg, free_at_crash);
 220         END OBJ(wireless_link_qual_perc, &update_net_stats)
 221                 parse_net_stat_arg(obj, arg, free_at_crash);
 222         END OBJ(wireless_link_bar, &update_net_stats)
 223                 parse_net_stat_bar_arg(obj, arg, free_at_crash);
 224 #endif /* HAVE_IWLIB */
 225
 226 #endif /* __linux__ */
 227
 228 #ifndef __OpenBSD__
 229         END OBJ(acpifan, 0)
 230         END OBJ(battery, 0)
 231                 char bat[64];
 232
 233                 if (arg) {
 234                         sscanf(arg, "%63s", bat);
 235                 } else {
 236                         strcpy(bat, "BAT0");
 237                 }
 238                 obj->data.s = strndup(bat, text_buffer_size);
 239         END OBJ(battery_short, 0)
 240                 char bat[64];
 241
 242                 if (arg) {
 243                         sscanf(arg, "%63s", bat);
 244                 } else {
 245                         strcpy(bat, "BAT0");
 246                 }
 247                 obj->data.s = strndup(bat, text_buffer_size);
 248         END OBJ(battery_time, 0)
 249                 char bat[64];
 250
 251                 if (arg) {
 252                         sscanf(arg, "%63s", bat);
 253                 } else {
 254                         strcpy(bat, "BAT0");
 255                 }
 256                 obj->data.s = strndup(bat, text_buffer_size);
 257         END OBJ(battery_percent, 0)
 258                 char bat[64];
 259
 260                 if (arg) {
 261                         sscanf(arg, "%63s", bat);
 262                 } else {
 263                         strcpy(bat, "BAT0");
 264                 }
 265                 obj->data.s = strndup(bat, text_buffer_size);
 266         END OBJ(battery_bar, 0)
 267                 char bat[64];
 268                 if (arg) {
 269                         arg = scan_bar(obj, arg);
 270                         sscanf(arg, "%63s", bat);
 271                 } else {
 272                         strcpy(bat, "BAT0");
 273                 }
 274                 obj->data.s = strndup(bat, text_buffer_size);
 275 #endif /* !__OpenBSD__ */
 276
 277 #if defined(__linux__)
 278         END OBJ_ARG(disk_protect, 0, "disk_protect needs an argument")
 279                 obj->data.s = strndup(dev_name(arg), text_buffer_size);
 280         END OBJ(i8k_version, &update_i8k)
 281         END OBJ(i8k_bios, &update_i8k)
 282         END OBJ(i8k_serial, &update_i8k)
 283         END OBJ(i8k_cpu_temp, &update_i8k)
 284         END OBJ(i8k_left_fan_status, &update_i8k)
 285         END OBJ(i8k_right_fan_status, &update_i8k)
 286         END OBJ(i8k_left_fan_rpm, &update_i8k)
 287         END OBJ(i8k_right_fan_rpm, &update_i8k)
 288         END OBJ(i8k_ac_status, &update_i8k)
 289         END OBJ(i8k_buttons_status, &update_i8k)
 290 #if defined(IBM)
 291         END OBJ(ibm_fan, 0)
 292         END OBJ_ARG(ibm_temps, &get_ibm_acpi_temps, "ibm_temps: needs an argument")
 293                 parse_ibm_temps_arg(obj, arg);
 294         END OBJ(ibm_volume, 0)
 295         END OBJ(ibm_brightness, 0)
 296 #endif
 297         /* information from sony_laptop kernel module
 298          * /sys/devices/platform/sony-laptop */
 299         END OBJ(sony_fanspeed, 0)
 300         END OBJ_IF(if_gw, &update_gateway_info)
 301         END OBJ_ARG(ioscheduler, 0, "get_ioscheduler needs an argument (e.g. hda)")
 302                 obj->data.s = strndup(dev_name(arg), text_buffer_size);
 303         END OBJ(laptop_mode, 0)
 304         END OBJ_ARG(pb_battery, 0, "pb_battery: needs one argument: status, percent or time")
 305                 if (strcmp(arg, "status") == EQUAL) {
 306                         obj->data.i = PB_BATT_STATUS;
 307                 } else if (strcmp(arg, "percent") == EQUAL) {
 308                         obj->data.i = PB_BATT_PERCENT;
 309                 } else if (strcmp(arg, "time") == EQUAL) {
 310                         obj->data.i = PB_BATT_TIME;
 311                 } else {
 312                         NORM_ERR("pb_battery: illegal argument '%s', defaulting to status", arg);
 313                         obj->data.i = PB_BATT_STATUS;
 314                 }
 315 #endif /* __linux__ */
 316 #if (defined(__FreeBSD__) || defined(__linux__))
 317         END OBJ_IF_ARG(if_up, 0, "if_up needs an argument")
 318                 parse_if_up_arg(obj, arg);
 319 #endif
 320 #if defined(__OpenBSD__)
 321         END OBJ_ARG(obsd_sensors_temp, 0, "obsd_sensors_temp: needs an argument")
 322                 parse_obsd_sensor(obj, arg);
 323         END OBJ_ARG(obsd_sensors_fan, 0, "obsd_sensors_fan: needs 2 arguments (device and sensor number)")
 324                 parse_obsd_sensor(obj, arg);
 325         END OBJ_ARG(obsd_sensors_volt, 0, "obsd_sensors_volt: needs 2 arguments (device and sensor number)")
 326                 parse_obsd_sensor(obj, arg);
 327         END OBJ(obsd_vendor, 0)
 328         END OBJ(obsd_product, 0)
 329 #endif /* __OpenBSD__ */
 330         END OBJ(buffers, &update_meminfo)
 331         END OBJ(cached, &update_meminfo)
 332 #define SCAN_CPU(__arg, __var) { \
 333         int __offset = 0; \
 334         if (__arg && sscanf(__arg, " cpu%d %n", &__var, &__offset) > 0) \
 335                 __arg += __offset; \
 336         else \
 337                 __var = 0; \
 338 }
 339         END OBJ(cpu, &update_cpu_usage)
 340                 SCAN_CPU(arg, obj->data.i);
 341                 DBGP2("Adding $cpu for CPU %d", obj->data.i);
 342 #ifdef X11
 343         END OBJ(cpugauge, &update_cpu_usage)
 344                 SCAN_CPU(arg, obj->data.i);
 345                 scan_gauge(obj, arg);
 346                 DBGP2("Adding $cpugauge for CPU %d", obj->data.i);
 347 #endif /* X11 */
 348         END OBJ(cpubar, &update_cpu_usage)
 349                 SCAN_CPU(arg, obj->data.i);
 350                 scan_bar(obj, arg);
 351                 DBGP2("Adding $cpubar for CPU %d", obj->data.i);
 352 #ifdef X11
 353         END OBJ(cpugraph, &update_cpu_usage)
 354                 char *buf = 0;
 355                 SCAN_CPU(arg, obj->data.i);
 356                 buf = scan_graph(obj, arg, 100);
 357                 DBGP2("Adding $cpugraph for CPU %d", obj->data.i);
 358                 if (buf) free(buf);
 359         END OBJ(loadgraph, &update_load_average)
 360                 scan_loadgraph_arg(obj, arg);
 361 #endif /* X11 */
 362         END OBJ(diskio, &update_diskio)
 363                 parse_diskio_arg(obj, arg);
 364         END OBJ(diskio_read, &update_diskio)
 365                 parse_diskio_arg(obj, arg);
 366         END OBJ(diskio_write, &update_diskio)
 367                 parse_diskio_arg(obj, arg);
 368 #ifdef X11
 369         END OBJ(diskiograph, &update_diskio)
 370                 parse_diskiograph_arg(obj, arg);
 371         END OBJ(diskiograph_read, &update_diskio)
 372                 parse_diskiograph_arg(obj, arg);
 373         END OBJ(diskiograph_write, &update_diskio)
 374                 parse_diskiograph_arg(obj, arg);
 375 #endif /* X11 */
 376         END OBJ(color, 0)
 377 #ifdef X11
 378                 if (output_methods & TO_X) {
 379                         obj->data.l = arg ? get_x11_color(arg) : default_fg_color;
 380                         set_current_text_color(obj->data.l);
 381                 }
 382 #endif /* X11 */
 383 #ifdef NCURSES
 384                 if (output_methods & TO_NCURSES) {
 385                         obj->data.l = COLOR_WHITE;
 386                         if(arg) {
 387                                 if(strcasecmp(arg, "red") == 0) {
 388                                         obj->data.l = COLOR_RED;
 389                                 }else if(strcasecmp(arg, "green") == 0) {
 390                                         obj->data.l = COLOR_GREEN;
 391                                 }else if(strcasecmp(arg, "yellow") == 0) {
 392                                         obj->data.l = COLOR_YELLOW;
 393                                 }else if(strcasecmp(arg, "blue") == 0) {
 394                                         obj->data.l = COLOR_BLUE;
 395                                 }else if(strcasecmp(arg, "magenta") == 0) {
 396                                         obj->data.l = COLOR_MAGENTA;
 397                                 }else if(strcasecmp(arg, "cyan") == 0) {
 398                                         obj->data.l = COLOR_CYAN;
 399                                 }else if(strcasecmp(arg, "black") == 0) {
 400                                         obj->data.l = COLOR_BLACK;
 401                                 }
 402                         }
 403                         set_current_text_color(obj->data.l);
 404                         init_pair(obj->data.l, obj->data.l, COLOR_BLACK);
 405                 }
 406 #endif /* NCURSES */
 407         END OBJ(color0, 0)
 408                 obj->data.l = color0;
 409                 set_current_text_color(obj->data.l);
 410         END OBJ(color1, 0)
 411                 obj->data.l = color1;
 412                 set_current_text_color(obj->data.l);
 413         END OBJ(color2, 0)
 414                 obj->data.l = color2;
 415                 set_current_text_color(obj->data.l);
 416         END OBJ(color3, 0)
 417                 obj->data.l = color3;
 418                 set_current_text_color(obj->data.l);
 419         END OBJ(color4, 0)
 420                 obj->data.l = color4;
 421                 set_current_text_color(obj->data.l);
 422         END OBJ(color5, 0)
 423                 obj->data.l = color5;
 424                 set_current_text_color(obj->data.l);
 425         END OBJ(color6, 0)
 426                 obj->data.l = color6;
 427                 set_current_text_color(obj->data.l);
 428         END OBJ(color7, 0)
 429                 obj->data.l = color7;
 430                 set_current_text_color(obj->data.l);
 431         END OBJ(color8, 0)
 432                 obj->data.l = color8;
 433                 set_current_text_color(obj->data.l);
 434         END OBJ(color9, 0)
 435                 obj->data.l = color9;
 436                 set_current_text_color(obj->data.l);
 437 #ifdef X11
 438         END OBJ(font, 0)
 439                 obj->data.s = scan_font(arg);
 440 #endif /* X11 */
 441         END OBJ(conky_version, 0)
 442         END OBJ(conky_build_date, 0)
 443         END OBJ(conky_build_arch, 0)
 444         END OBJ(downspeed, &update_net_stats)
 445                 parse_net_stat_arg(obj, arg, free_at_crash);
 446         END OBJ(downspeedf, &update_net_stats)
 447                 parse_net_stat_arg(obj, arg, free_at_crash);
 448 #ifdef X11
 449         END OBJ(downspeedgraph, &update_net_stats)
 450                 parse_net_stat_graph_arg(obj, arg, free_at_crash);
 451 #endif /* X11 */
 452         END OBJ(else, 0)
 453                 obj_be_ifblock_else(ifblock_opaque, obj);
 454         END OBJ(endif, 0)
 455                 obj_be_ifblock_endif(ifblock_opaque, obj);
 456         END OBJ(eval, 0)
 457                 obj->data.s = strndup(arg ? arg : "", text_buffer_size);
 458 #if defined(IMLIB2) && defined(X11)
 459         END OBJ(image, 0)
 460                 obj->data.s = strndup(arg ? arg : "", text_buffer_size);
 461 #endif /* IMLIB2 */
 462         END OBJ(exec, 0)
 463                 scan_exec_arg(obj, arg);
 464         END OBJ(execp, 0)
 465                 scan_exec_arg(obj, arg);
 466         END OBJ(execbar, 0)
 467                 scan_exec_arg(obj, arg);
 468 #ifdef X11
 469         END OBJ(execgauge, 0)
 470                 scan_exec_arg(obj, arg);
 471         END OBJ(execgraph, 0)
 472                 scan_execgraph_arg(obj, arg);
 473 #endif /* X11 */
 474         END OBJ_ARG(execibar, 0, "execibar needs arguments")
 475                 scan_execi_arg(obj, arg);
 476 #ifdef X11
 477         END OBJ_ARG(execigraph, 0, "execigraph needs arguments")
 478                 scan_execgraph_arg(obj, arg);
 479         END OBJ_ARG(execigauge, 0, "execigauge needs arguments")
 480                 scan_execi_arg(obj, arg);
 481 #endif /* X11 */
 482         END OBJ_ARG(execi, 0, "execi needs arguments")
 483                 scan_execi_arg(obj, arg);
 484         END OBJ_ARG(execpi, 0, "execpi needs arguments")
 485                 scan_execi_arg(obj, arg);
 486         END OBJ_ARG(texeci, 0, "texeci needs arguments")
 487                 scan_execi_arg(obj, arg);
 488         END OBJ(pre_exec, 0)
 489                 scan_pre_exec_arg(obj, arg);
 490         END OBJ(fs_bar, &update_fs_stats)
 491                 init_fs_bar(obj, arg);
 492         END OBJ(fs_bar_free, &update_fs_stats)
 493                 init_fs_bar(obj, arg);
 494         END OBJ(fs_free, &update_fs_stats)
 495                 init_fs(obj, arg);
 496         END OBJ(fs_used_perc, &update_fs_stats)
 497                 init_fs(obj, arg);
 498         END OBJ(fs_free_perc, &update_fs_stats)
 499                 init_fs(obj, arg);
 500         END OBJ(fs_size, &update_fs_stats)
 501                 init_fs(obj, arg);
 502         END OBJ(fs_type, &update_fs_stats)
 503                 init_fs(obj, arg);
 504         END OBJ(fs_used, &update_fs_stats)
 505                 init_fs(obj, arg);
 506         END OBJ(hr, 0)
 507                 obj->data.i = arg ? atoi(arg) : 1;
 508         END OBJ(nameserver, &update_dns_data)
 509                 parse_nameserver_arg(obj, arg);
 510         END OBJ(offset, 0)
 511                 obj->data.i = arg ? atoi(arg) : 1;
 512         END OBJ(voffset, 0)
 513                 obj->data.i = arg ? atoi(arg) : 1;
 514         END OBJ_ARG(goto, 0, "goto needs arguments")
 515                 obj->data.i = atoi(arg);
 516 #ifdef X11
 517         END OBJ(tab, 0)
 518                 scan_tab(obj, arg);
 519 #endif /* X11 */
 520 #ifdef __linux__
 521         END OBJ_ARG(i2c, 0, "i2c needs arguments")
 522                 parse_i2c_sensor(obj, arg);
 523         END OBJ_ARG(platform, 0, "platform needs arguments")
 524                 parse_platform_sensor(obj, arg);
 525         END OBJ_ARG(hwmon, 0, "hwmon needs argumanets")
 526                 parse_hwmon_sensor(obj, arg);
 527 #endif /* __linux__ */
 528
 529         END
 530         /* we have four different types of top (top, top_mem, top_time and top_io). To
 531          * avoid having almost-same code four times, we have this special
 532          * handler. */
 533         if (strncmp(s, "top", 3) == EQUAL) {
 534                 add_update_callback(&update_meminfo);
 535                 add_update_callback(&update_top);
 536                 if (!parse_top_args(s, arg, obj)) {
 537                         return NULL;
 538                 }
 539         } else OBJ(addr, &update_net_stats)
 540                 parse_net_stat_arg(obj, arg, free_at_crash);
 541 #if defined(__linux__)
 542         END OBJ(addrs, &update_net_stats)
 543                 parse_net_stat_arg(obj, arg, free_at_crash);
 544 #endif /* __linux__ */
 545         END OBJ_ARG(tail, 0, "tail needs arguments")
 546                 init_tailhead("tail", arg, obj, free_at_crash);
 547         END OBJ_ARG(head, 0, "head needs arguments")
 548                 init_tailhead("head", arg, obj, free_at_crash);
 549         END OBJ_ARG(lines, 0, "lines needs an argument")
 550                 obj->data.s = strndup(arg, text_buffer_size);
 551         END OBJ_ARG(words, 0, "words needs a argument")
 552                 obj->data.s = strndup(arg, text_buffer_size);
 553         END OBJ(loadavg, &update_load_average)
 554                 scan_loadavg_arg(obj, arg);
 555         END OBJ_IF_ARG(if_empty, 0, "if_empty needs an argument")
 556                 obj->sub = malloc(sizeof(struct text_object));
 557                 extract_variable_text_internal(obj->sub, arg);
 558         END OBJ_IF_ARG(if_match, 0, "if_match needs arguments")
 559                 obj->sub = malloc(sizeof(struct text_object));
 560                 extract_variable_text_internal(obj->sub, arg);
 561         END OBJ_IF_ARG(if_existing, 0, "if_existing needs an argument or two")
 562                 obj->data.s = strndup(arg, text_buffer_size);
 563         END OBJ_IF_ARG(if_mounted, 0, "if_mounted needs an argument")
 564                 obj->data.s = strndup(arg, text_buffer_size);
 565 #ifdef __linux__
 566         END OBJ_IF_ARG(if_running, &update_top, "if_running needs an argument")
 567                 top_running = 1;
 568                 obj->data.s = strndup(arg, text_buffer_size);
 569 #else
 570         END OBJ_IF_ARG(if_running, 0, "if_running needs an argument")
 571                 char buf[256];
 572
 573                 snprintf(buf, 256, "pidof %s >/dev/null", arg);
 574                 obj->data.s = strndup(buf, text_buffer_size);
 575 #endif
 576         END OBJ(kernel, 0)
 577         END OBJ(machine, 0)
 578         END OBJ(mails, 0)
 579                 parse_local_mail_args(obj, arg);
 580         END OBJ(new_mails, 0)
 581                 parse_local_mail_args(obj, arg);
 582         END OBJ(seen_mails, 0)
 583                 parse_local_mail_args(obj, arg);
 584         END OBJ(unseen_mails, 0)
 585                 parse_local_mail_args(obj, arg);
 586         END OBJ(flagged_mails, 0)
 587                 parse_local_mail_args(obj, arg);
 588         END OBJ(unflagged_mails, 0)
 589                 parse_local_mail_args(obj, arg);
 590         END OBJ(forwarded_mails, 0)
 591                 parse_local_mail_args(obj, arg);
 592         END OBJ(unforwarded_mails, 0)
 593                 parse_local_mail_args(obj, arg);
 594         END OBJ(replied_mails, 0)
 595                 parse_local_mail_args(obj, arg);
 596         END OBJ(unreplied_mails, 0)
 597                 parse_local_mail_args(obj, arg);
 598         END OBJ(draft_mails, 0)
 599                 parse_local_mail_args(obj, arg);
 600         END OBJ(trashed_mails, 0)
 601                 parse_local_mail_args(obj, arg);
 602         END OBJ(mboxscan, 0)
 603                 parse_mboxscan_arg(obj, arg);
 604         END OBJ(mem, &update_meminfo)
 605         END OBJ(memeasyfree, &update_meminfo)
 606         END OBJ(memfree, &update_meminfo)
 607         END OBJ(memmax, &update_meminfo)
 608         END OBJ(memperc, &update_meminfo)
 609 #ifdef X11
 610         END OBJ(memgauge, &update_meminfo)
 611                 scan_gauge(obj, arg);
 612 #endif /* X11*/
 613         END OBJ(membar, &update_meminfo)
 614                 scan_bar(obj, arg);
 615 #ifdef X11
 616         END OBJ(memgraph, &update_meminfo)
 617                 char *buf = 0;
 618                 buf = scan_graph(obj, arg, 100);
 619
 620                 if (buf) free(buf);
 621 #endif /* X11*/
 622         END OBJ(mixer, 0)
 623                 parse_mixer_arg(obj, arg);
 624         END OBJ(mixerl, 0)
 625                 parse_mixer_arg(obj, arg);
 626         END OBJ(mixerr, 0)
 627                 parse_mixer_arg(obj, arg);
 628 #ifdef X11
 629         END OBJ(mixerbar, 0)
 630                 scan_mixer_bar(obj, arg);
 631         END OBJ(mixerlbar, 0)
 632                 scan_mixer_bar(obj, arg);
 633         END OBJ(mixerrbar, 0)
 634                 scan_mixer_bar(obj, arg);
 635 #endif
 636         END OBJ_IF(if_mixer_mute, 0)
 637                 parse_mixer_arg(obj, arg);
 638 #ifdef X11
 639         END OBJ(monitor, &update_x11info)
 640         END OBJ(monitor_number, &update_x11info)
 641         END OBJ(desktop, &update_x11info)
 642         END OBJ(desktop_number, &update_x11info)
 643         END OBJ(desktop_name, &update_x11info)
 644 #endif
 645         END OBJ(nodename, 0)
 646         END OBJ(processes, &update_total_processes)
 647         END OBJ(running_processes, &update_running_processes)
 648         END OBJ(threads, &update_threads)
 649         END OBJ(shadecolor, 0)
 650 #ifdef X11
 651                 obj->data.l = arg ? get_x11_color(arg) : default_bg_color;
 652 #endif /* X11 */
 653         END OBJ(outlinecolor, 0)
 654 #ifdef X11
 655                 obj->data.l = arg ? get_x11_color(arg) : default_out_color;
 656 #endif /* X11 */
 657         END OBJ(stippled_hr, 0)
 658 #ifdef X11
 659                 scan_stippled_hr(obj, arg);
 660 #endif /* X11 */
 661         END OBJ(swap, &update_meminfo)
 662         END OBJ(swapfree, &update_meminfo)
 663         END OBJ(swapmax, &update_meminfo)
 664         END OBJ(swapperc, &update_meminfo)
 665         END OBJ(swapbar, &update_meminfo)
 666                 scan_bar(obj, arg);
 667         END OBJ(sysname, 0)
 668         END OBJ(time, 0)
 669                 scan_time(obj, arg);
 670         END OBJ(utime, 0)
 671                 scan_time(obj, arg);
 672         END OBJ(tztime, 0)
 673                 scan_tztime(obj, arg);
 674 #ifdef HAVE_ICONV
 675         END OBJ_ARG(iconv_start, 0, "Iconv requires arguments")
 676                 init_iconv_start(obj, free_at_crash, arg);
 677         END OBJ(iconv_stop, 0)
 678                 init_iconv_stop();
 679 #endif
 680         END OBJ(totaldown, &update_net_stats)
 681                 parse_net_stat_arg(obj, arg, free_at_crash);
 682         END OBJ(totalup, &update_net_stats)
 683                 parse_net_stat_arg(obj, arg, free_at_crash);
 684         END OBJ(updates, 0)
 685         END OBJ_IF(if_updatenr, 0)
 686                 obj->data.i = arg ? atoi(arg) : 0;
 687                 if(obj->data.i == 0) CRIT_ERR(obj, free_at_crash, "if_updatenr needs a number above 0 as argument");
 688                 set_updatereset(obj->data.i > get_updatereset() ? obj->data.i : get_updatereset());
 689         END OBJ(alignr, 0)
 690                 obj->data.i = arg ? atoi(arg) : 0;
 691         END OBJ(alignc, 0)
 692                 obj->data.i = arg ? atoi(arg) : 0;
 693         END OBJ(upspeed, &update_net_stats)
 694                 parse_net_stat_arg(obj, arg, free_at_crash);
 695         END OBJ(upspeedf, &update_net_stats)
 696                 parse_net_stat_arg(obj, arg, free_at_crash);
 697 #ifdef X11
 698         END OBJ(upspeedgraph, &update_net_stats)
 699                 parse_net_stat_graph_arg(obj, arg, free_at_crash);
 700 #endif
 701         END OBJ(uptime_short, &update_uptime)
 702         END OBJ(uptime, &update_uptime)
 703         END OBJ(user_names, &update_users)
 704         END OBJ(user_times, &update_users)
 705         END OBJ(user_terms, &update_users)
 706         END OBJ(user_number, &update_users)
 707 #if defined(__linux__)
 708         END OBJ(gw_iface, &update_gateway_info)
 709         END OBJ(gw_ip, &update_gateway_info)
 710 #endif /* !__linux__ */
 711 #ifndef __OpenBSD__
 712         END OBJ(adt746xcpu, 0)
 713         END OBJ(adt746xfan, 0)
 714 #endif /* !__OpenBSD__ */
 715 #if (defined(__FreeBSD__) || defined(__FreeBSD_kernel__) \
 716                 || defined(__OpenBSD__)) && (defined(i386) || defined(__i386__))
 717         END OBJ(apm_adapter, 0)
 718         END OBJ(apm_battery_life, 0)
 719         END OBJ(apm_battery_time, 0)
 720 #endif /* __FreeBSD__ */
 721         END OBJ(imap_unseen, 0)
 722                 parse_imap_mail_args(obj, arg);
 723         END OBJ(imap_messages, 0)
 724                 parse_imap_mail_args(obj, arg);
 725         END OBJ(pop3_unseen, 0)
 726                 parse_pop3_mail_args(obj, arg);
 727         END OBJ(pop3_used, 0)
 728                 parse_pop3_mail_args(obj, arg);
 729 #ifdef IBM
 730         END OBJ_ARG(smapi, 0, "smapi needs an argument")
 731                 obj->data.s = strndup(arg, text_buffer_size);
 732         END OBJ_IF_ARG(if_smapi_bat_installed, 0, "if_smapi_bat_installed needs an argument")
 733                 obj->data.s = strndup(arg, text_buffer_size);
 734         END OBJ_ARG(smapi_bat_perc, 0, "smapi_bat_perc needs an argument")
 735                 obj->data.s = strndup(arg, text_buffer_size);
 736         END OBJ_ARG(smapi_bat_temp, 0, "smapi_bat_temp needs an argument")
 737                 obj->data.s = strndup(arg, text_buffer_size);
 738         END OBJ_ARG(smapi_bat_power, 0, "smapi_bat_power needs an argument")
 739                 obj->data.s = strndup(arg, text_buffer_size);
 740 #ifdef X11
 741         END OBJ_ARG(smapi_bat_bar, 0, "smapi_bat_bar needs an argument")
 742                 int cnt;
 743                 if(sscanf(arg, "%i %n", &obj->data.i, &cnt) <= 0) {
 744                         NORM_ERR("first argument to smapi_bat_bar must be an integer value");
 745                         obj->data.i = -1;
 746                 } else
 747                         arg = scan_bar(obj, arg + cnt);
 748 #endif /* X11 */
 749 #endif /* IBM */
 750 #ifdef MPD
 751 #define mpd_set_maxlen(name) \
 752                 if (arg) { \
 753                         int i; \
 754                         sscanf(arg, "%d", &i); \
 755                         if (i > 0) \
 756                                 obj->data.i = i + 1; \
 757                         else \
 758                                 NORM_ERR(#name ": invalid length argument"); \
 759                 }
 760         END OBJ(mpd_artist, &update_mpd)
 761                 mpd_set_maxlen(mpd_artist);
 762                 init_mpd();
 763         END OBJ(mpd_title, &update_mpd)
 764                 mpd_set_maxlen(mpd_title);
 765                 init_mpd();
 766         END OBJ(mpd_random, &update_mpd) init_mpd();
 767         END OBJ(mpd_repeat, &update_mpd) init_mpd();
 768         END OBJ(mpd_elapsed, &update_mpd) init_mpd();
 769         END OBJ(mpd_length, &update_mpd) init_mpd();
 770         END OBJ(mpd_track, &update_mpd)
 771                 mpd_set_maxlen(mpd_track);
 772                 init_mpd();
 773         END OBJ(mpd_name, &update_mpd)
 774                 mpd_set_maxlen(mpd_name);
 775                 init_mpd();
 776         END OBJ(mpd_file, &update_mpd)
 777                 mpd_set_maxlen(mpd_file);
 778                 init_mpd();
 779         END OBJ(mpd_percent, &update_mpd) init_mpd();
 780         END OBJ(mpd_album, &update_mpd)
 781                 mpd_set_maxlen(mpd_album);
 782                 init_mpd();
 783         END OBJ(mpd_vol, &update_mpd) init_mpd();
 784         END OBJ(mpd_bitrate, &update_mpd) init_mpd();
 785         END OBJ(mpd_status, &update_mpd) init_mpd();
 786         END OBJ(mpd_bar, &update_mpd)
 787                 scan_bar(obj, arg);
 788                 init_mpd();
 789         END OBJ(mpd_smart, &update_mpd)
 790                 mpd_set_maxlen(mpd_smart);
 791                 init_mpd();
 792         END OBJ_IF(if_mpd_playing, &update_mpd)
 793                 init_mpd();
 794 #undef mpd_set_maxlen
 795 #endif /* MPD */
 796 #ifdef MOC
 797         END OBJ(moc_state, &update_moc)
 798         END OBJ(moc_file, &update_moc)
 799         END OBJ(moc_title, &update_moc)
 800         END OBJ(moc_artist, &update_moc)
 801         END OBJ(moc_song, &update_moc)
 802         END OBJ(moc_album, &update_moc)
 803         END OBJ(moc_totaltime, &update_moc)
 804         END OBJ(moc_timeleft, &update_moc)
 805         END OBJ(moc_curtime, &update_moc)
 806         END OBJ(moc_bitrate, &update_moc)
 807         END OBJ(moc_rate, &update_moc)
 808 #endif /* MOC */
 809 #ifdef XMMS2
 810         END OBJ(xmms2_artist, &update_xmms2)
 811         END OBJ(xmms2_album, &update_xmms2)
 812         END OBJ(xmms2_title, &update_xmms2)
 813         END OBJ(xmms2_genre, &update_xmms2)
 814         END OBJ(xmms2_comment, &update_xmms2)
 815         END OBJ(xmms2_url, &update_xmms2)
 816         END OBJ(xmms2_tracknr, &update_xmms2)
 817         END OBJ(xmms2_bitrate, &update_xmms2)
 818         END OBJ(xmms2_date, &update_xmms2)
 819         END OBJ(xmms2_id, &update_xmms2)
 820         END OBJ(xmms2_duration, &update_xmms2)
 821         END OBJ(xmms2_elapsed, &update_xmms2)
 822         END OBJ(xmms2_size, &update_xmms2)
 823         END OBJ(xmms2_status, &update_xmms2)
 824         END OBJ(xmms2_percent, &update_xmms2)
 825 #ifdef X11
 826         END OBJ(xmms2_bar, &update_xmms2)
 827                 scan_bar(obj, arg);
 828 #endif /* X11 */
 829         END OBJ(xmms2_smart, &update_xmms2)
 830         END OBJ(xmms2_playlist, &update_xmms2)
 831         END OBJ(xmms2_timesplayed, &update_xmms2)
 832         END OBJ_IF(if_xmms2_connected, &update_xmms2)
 833 #endif
 834 #ifdef AUDACIOUS
 835         END OBJ(audacious_status, &update_audacious)
 836         END OBJ_ARG(audacious_title, &update_audacious, "audacious_title needs an argument")
 837                 sscanf(arg, "%d", &info.audacious.max_title_len);
 838                 if (info.audacious.max_title_len > 0) {
 839                         info.audacious.max_title_len++;
 840                 } else {
 841                         CRIT_ERR(obj, free_at_crash, "audacious_title: invalid length argument");
 842                 }
 843         END OBJ(audacious_length, &update_audacious)
 844         END OBJ(audacious_length_seconds, &update_audacious)
 845         END OBJ(audacious_position, &update_audacious)
 846         END OBJ(audacious_position_seconds, &update_audacious)
 847         END OBJ(audacious_bitrate, &update_audacious)
 848         END OBJ(audacious_frequency, &update_audacious)
 849         END OBJ(audacious_channels, &update_audacious)
 850         END OBJ(audacious_filename, &update_audacious)
 851         END OBJ(audacious_playlist_length, &update_audacious)
 852         END OBJ(audacious_playlist_position, &update_audacious)
 853         END OBJ(audacious_main_volume, &update_audacious)
 854 #ifdef X11
 855         END OBJ(audacious_bar, &update_audacious)
 856                 scan_bar(obj, arg);
 857 #endif /* X11 */
 858 #endif
 859 #ifdef BMPX
 860         END OBJ(bmpx_title, &update_bmpx)
 861                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
 862         END OBJ(bmpx_artist, &update_bmpx)
 863                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
 864         END OBJ(bmpx_album, &update_bmpx)
 865                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
 866         END OBJ(bmpx_track, &update_bmpx)
 867                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
 868         END OBJ(bmpx_uri, &update_bmpx)
 869                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
 870         END OBJ(bmpx_bitrate, &update_bmpx)
 871                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
 872 #endif
 873 #ifdef EVE
 874         END OBJ_ARG(eve, 0, "eve needs arguments: <userid> <apikey> <characterid>")
 875                 scan_eve(obj, arg);
 876 #endif
 877 #ifdef HAVE_CURL
 878         END OBJ_ARG(curl, 0, "curl needs arguments: <uri> <interval in minutes>")
 879                 curl_parse_arg(obj, arg);
 880 #endif
 881 #ifdef RSS
 882         END OBJ_ARG(rss, 0, "rss needs arguments: <uri> <interval in minutes> <action> [act_par] [spaces in front]")
 883                 rss_scan_arg(obj, arg);
 884 #endif
 885 #ifdef WEATHER
 886         END OBJ_ARG(weather, 0, "weather needs arguments: <uri> <locID> <data_type> [interval in minutes]")
 887                 scan_weather_arg(obj, arg, free_at_crash);
 888 #endif
 889 #ifdef XOAP
 890         END OBJ_ARG(weather_forecast, 0, "weather_forecast needs arguments: <uri> <locID> <day> <data_type> [interval in minutes]")
 891                 scan_weather_forecast_arg(obj, arg, free_at_crash);
 892 #endif
 893 #ifdef HAVE_LUA
 894         END OBJ_ARG(lua, 0, "lua needs arguments: <function name> [function parameters]")
 895                 obj->data.s = strndup(arg, text_buffer_size);
 896         END OBJ_ARG(lua_parse, 0, "lua_parse needs arguments: <function name> [function parameters]")
 897                 obj->data.s = strndup(arg, text_buffer_size);
 898         END OBJ_ARG(lua_bar, 0, "lua_bar needs arguments: <height>,<width> <function name> [function parameters]")
 899                 arg = scan_bar(obj, arg);
 900                 if(arg) {
 901                         obj->data.s = strndup(arg, text_buffer_size);
 902                 } else {
 903                         CRIT_ERR(obj, free_at_crash, "lua_bar needs arguments: <height>,<width> <function name> [function parameters]");
 904                 }
 905 #ifdef X11
 906         END OBJ_ARG(lua_graph, 0, "lua_graph needs arguments: <function name> [height],[width] [gradient colour 1] [gradient colour 2] [scale] [-t] [-l]")
 907                 char *buf = 0;
 908                 buf = scan_graph(obj, arg, 0);
 909                 if (buf) {
 910                         obj->data.s = buf;
 911                 } else {
 912                         CRIT_ERR(obj, free_at_crash, "lua_graph needs arguments: <function name> [height],[width] [gradient colour 1] [gradient colour 2] [scale] [-t] [-l]");
 913                 }
 914         END OBJ_ARG(lua_gauge, 0, "lua_gauge needs arguments: <height>,<width> <function name> [function parameters]")
 915                 arg = scan_gauge(obj, arg);
 916                 if (arg) {
 917                         obj->data.s = strndup(arg, text_buffer_size);
 918                 } else {
 919                         CRIT_ERR(obj, free_at_crash, "lua_gauge needs arguments: <height>,<width> <function name> [function parameters]");
 920                 }
 921 #endif /* X11 */
 922 #endif /* HAVE_LUA */
 923 #ifdef HDDTEMP
 924         END OBJ(hddtemp, &update_hddtemp)
 925                 if (arg)
 926                         obj->data.s = strndup(arg, text_buffer_size);
 927 #endif /* HDDTEMP */
 928 #ifdef TCP_PORT_MONITOR
 929         END OBJ_ARG(tcp_portmon, &tcp_portmon_update, "tcp_portmon: needs arguments")
 930                 tcp_portmon_init(obj, arg);
 931 #endif /* TCP_PORT_MONITOR */
 932         END OBJ(entropy_avail, &update_entropy)
 933         END OBJ(entropy_perc, &update_entropy)
 934         END OBJ(entropy_poolsize, &update_entropy)
 935         END OBJ(entropy_bar, &update_entropy)
 936                 scan_bar(obj, arg);
 937         END OBJ_ARG(include, 0, "include needs a argument")
 938                 struct conftree *leaf = conftree_add(currentconffile, arg);
 939                 if(leaf) {
 940                         if (load_config_file(arg) == TRUE) {
 941                                 obj->sub = malloc(sizeof(struct text_object));
 942                                 currentconffile = leaf;
 943                                 extract_variable_text_internal(obj->sub, get_global_text());
 944                                 currentconffile = leaf->back;
 945                         } else {
 946                                 NORM_ERR("Can't load configfile '%s'.", arg);
 947                         }
 948                 } else {
 949                         NORM_ERR("You are trying to load '%s' recursively, I'm only going to load it once to prevent an infinite loop.", arg);
 950                 }
 951         END OBJ_ARG(blink, 0, "blink needs a argument")
 952                 obj->sub = malloc(sizeof(struct text_object));
 953                 extract_variable_text_internal(obj->sub, arg);
 954         END OBJ_ARG(to_bytes, 0, "to_bytes needs a argument")
 955                 obj->sub = malloc(sizeof(struct text_object));
 956                 extract_variable_text_internal(obj->sub, arg);
 957         END OBJ(scroll, 0)
 958                 parse_scroll_arg(obj, arg, free_at_crash);
 959         END OBJ_ARG(combine, 0, "combine needs arguments: <text1> <text2>")
 960                 parse_combine_arg(obj, arg, free_at_crash);
 961 #ifdef NVIDIA
 962         END OBJ_ARG(nvidia, 0, "nvidia needs an argument")
 963                 if (set_nvidia_type(obj, arg)) {
 964                         CRIT_ERR(obj, free_at_crash, "nvidia: invalid argument"
 965                                  " specified: '%s'\n", arg);
 966                 }
 967 #endif /* NVIDIA */
 968 #ifdef APCUPSD
 969         END OBJ_ARG(apcupsd, &update_apcupsd, "apcupsd needs arguments: <host> <port>")
 970                 char host[64];
 971                 int port;
 972                 if (sscanf(arg, "%63s %d", host, &port) != 2) {
 973                         CRIT_ERR(obj, free_at_crash, "apcupsd needs arguments: <host> <port>");
 974                 } else {
 975                         info.apcupsd.port = htons(port);
 976                         strncpy(info.apcupsd.host, host, sizeof(info.apcupsd.host));
 977                 }
 978         END OBJ(apcupsd_name, &update_apcupsd)
 979         END OBJ(apcupsd_model, &update_apcupsd)
 980         END OBJ(apcupsd_upsmode, &update_apcupsd)
 981         END OBJ(apcupsd_cable, &update_apcupsd)
 982         END OBJ(apcupsd_status, &update_apcupsd)
 983         END OBJ(apcupsd_linev, &update_apcupsd)
 984         END OBJ(apcupsd_load, &update_apcupsd)
 985         END OBJ(apcupsd_loadbar, &update_apcupsd)
 986                 scan_bar(obj, arg);
 987 #ifdef X11
 988         END OBJ(apcupsd_loadgraph, &update_apcupsd)
 989                 char* buf = 0;
 990                 buf = scan_graph(obj, arg, 0);
 991                 if (buf) free(buf);
 992         END OBJ(apcupsd_loadgauge, &update_apcupsd)
 993                 scan_gauge(obj, arg);
 994 #endif /* X11 */
 995         END OBJ(apcupsd_charge, &update_apcupsd)
 996         END OBJ(apcupsd_timeleft, &update_apcupsd)
 997         END OBJ(apcupsd_temp, &update_apcupsd)
 998         END OBJ(apcupsd_lastxfer, &update_apcupsd)
 999 #endif /* APCUPSD */
1000         END {
1001                 char buf[256];
1002
1003                 NORM_ERR("unknown variable %s", s);
1004                 obj->type = OBJ_text;
1005                 snprintf(buf, 256, "${%s}", s);
1006                 obj->data.s = strndup(buf, text_buffer_size);
1007         }
1008 #undef OBJ
1009 #undef OBJ_IF
1010 #undef OBJ_ARG
1011 #undef OBJ_IF_ARG
1012 #undef __OBJ_HEAD
1013 #undef __OBJ_IF
1014 #undef __OBJ_ARG
1015 #undef END
1016
1017         return obj;
1018 }
1019
1020 /*
1021  * - assumes that *string is '#'
1022  * - removes the part from '#' to the end of line ('\n' or '\0')
1023  * - it removes the '\n'
1024  * - copies the last char into 'char *last' argument, which should be a pointer
1025  *   to a char rather than a string.
1026  */
1027 static size_t remove_comment(char *string, char *last)
1028 {
1029         char *end = string;
1030         while (*end != '\0' && *end != '\n') {
1031                 ++end;
1032         }
1033         if (last) *last = *end;
1034         if (*end == '\n') end++;
1035         strfold(string, end - string);
1036         return end - string;
1037 }
1038
1039 size_t remove_comments(char *string)
1040 {
1041         char *curplace;
1042         size_t folded = 0;
1043         for (curplace = string; *curplace != 0; curplace++) {
1044                 if (*curplace == '\\' && *(curplace + 1) == '#') {
1045                         // strcpy can't be used for overlapping strings
1046                         strfold(curplace, 1);
1047                         folded += 1;
1048                 } else if (*curplace == '#') {
1049                         folded += remove_comment(curplace, 0);
1050                 }
1051         }
1052         return folded;
1053 }
1054
1055 int extract_variable_text_internal(struct text_object *retval, const char *const_p)
1056 {
1057         struct text_object *obj;
1058         char *p, *s, *orig_p;
1059         long line;
1060         void *ifblock_opaque = NULL;
1061         char *tmp_p;
1062         char *arg = 0;
1063         size_t len = 0;
1064
1065         p = strndup(const_p, max_user_text - 1);
1066         while (text_contains_templates(p)) {
1067                 char *tmp;
1068                 tmp = find_and_replace_templates(p);
1069                 free(p);
1070                 p = tmp;
1071         }
1072         s = orig_p = p;
1073
1074         if (strcmp(p, const_p)) {
1075                 DBGP("replaced all templates in text: input is\n'%s'\noutput is\n'%s'", const_p, p);
1076         } else {
1077                 DBGP("no templates to replace");
1078         }
1079
1080         memset(retval, 0, sizeof(struct text_object));
1081
1082         line = global_text_lines;
1083
1084         while (*p) {
1085                 if (*p == '\n') {
1086                         line++;
1087                 }
1088                 if (*p == '$') {
1089                         *p = '\0';
1090                         obj = create_plain_text(s);
1091                         if (obj != NULL) {
1092                                 append_object(retval, obj);
1093                         }
1094                         *p = '$';
1095                         p++;
1096                         s = p;
1097
1098                         if (*p != '$') {
1099                                 char buf[256];
1100                                 const char *var;
1101
1102                                 /* variable is either $foo or ${foo} */
1103                                 if (*p == '{') {
1104                                         unsigned int brl = 1, brr = 0;
1105
1106                                         p++;
1107                                         s = p;
1108                                         while (*p && brl != brr) {
1109                                                 if (*p == '{') {
1110                                                         brl++;
1111                                                 }
1112                                                 if (*p == '}') {
1113                                                         brr++;
1114                                                 }
1115                                                 p++;
1116                                         }
1117                                         p--;
1118                                 } else {
1119                                         s = p;
1120                                         if (*p == '#') {
1121                                                 p++;
1122                                         }
1123                                         while (*p && (isalnum((int) *p) || *p == '_')) {
1124                                                 p++;
1125                                         }
1126                                 }
1127
1128                                 /* copy variable to buffer */
1129                                 len = (p - s > 255) ? 255 : (p - s);
1130                                 strncpy(buf, s, len);
1131                                 buf[len] = '\0';
1132
1133                                 if (*p == '}') {
1134                                         p++;
1135                                 }
1136                                 s = p;
1137
1138                                 /* search for variable in environment */
1139
1140                                 var = getenv(buf);
1141                                 if (var) {
1142                                         obj = create_plain_text(var);
1143                                         if (obj) {
1144                                                 append_object(retval, obj);
1145                                         }
1146                                         continue;
1147                                 }
1148
1149                                 /* if variable wasn't found in environment, use some special */
1150
1151                                 arg = 0;
1152
1153                                 /* split arg */
1154                                 if (strchr(buf, ' ')) {
1155                                         arg = strchr(buf, ' ');
1156                                         *arg = '\0';
1157                                         arg++;
1158                                         while (isspace((int) *arg)) {
1159                                                 arg++;
1160                                         }
1161                                         if (!*arg) {
1162                                                 arg = 0;
1163                                         }
1164                                 }
1165
1166                                 /* lowercase variable name */
1167                                 tmp_p = buf;
1168                                 while (*tmp_p) {
1169                                         *tmp_p = tolower(*tmp_p);
1170                                         tmp_p++;
1171                                 }
1172
1173                                 obj = construct_text_object(buf, arg,
1174                                                 line, &ifblock_opaque, orig_p);
1175                                 if (obj != NULL) {
1176                                         append_object(retval, obj);
1177                                 }
1178                                 continue;
1179                         } else {
1180                                 obj = create_plain_text("$");
1181                                 s = p + 1;
1182                                 if (obj != NULL) {
1183                                         append_object(retval, obj);
1184                                 }
1185                         }
1186                 } else if (*p == '\\' && *(p+1) == '#') {
1187                         strfold(p, 1);
1188                 } else if (*p == '#') {
1189                         char c;
1190                         if (remove_comment(p, &c) && p > orig_p && c == '\n') {
1191                                 /* if remove_comment removed a newline, we need to 'back up' with p */
1192                                 p--;
1193                         }
1194                 }
1195                 p++;
1196         }
1197         obj = create_plain_text(s);
1198         if (obj != NULL) {
1199                 append_object(retval, obj);
1200         }
1201
1202         if (!ifblock_stack_empty(&ifblock_opaque)) {
1203                 NORM_ERR("one or more $endif's are missing");
1204         }
1205
1206         free(orig_p);
1207         return 0;
1208 }
1209
1210 /*
1211  * Frees the list of text objects root points to.  When internal = 1, it won't
1212  * free global objects.
1213  */
1214 void free_text_objects(struct text_object *root, int internal)
1215 {
1216         struct text_object *obj;
1217
1218         if (!root->prev) {
1219                 return;
1220         }
1221
1222 #define data obj->data
1223         for (obj = root->prev; obj; obj = root->prev) {
1224                 root->prev = obj->prev;
1225                 switch (obj->type) {
1226 #ifndef __OpenBSD__
1227                         case OBJ_acpitemp:
1228                                 close(data.i);
1229                                 break;
1230 #endif /* !__OpenBSD__ */
1231 #ifdef __linux__
1232                         case OBJ_i2c:
1233                         case OBJ_platform:
1234                         case OBJ_hwmon:
1235                                 free_sysfs_sensor(obj);
1236                                 break;
1237 #endif /* __linux__ */
1238                         case OBJ_read_tcp:
1239                                 free_read_tcp(obj);
1240                                 break;
1241                         case OBJ_time:
1242                         case OBJ_utime:
1243                                 free_time(obj);
1244                                 break;
1245                         case OBJ_tztime:
1246                                 free_tztime(obj);
1247                                 break;
1248                         case OBJ_mboxscan:
1249                                 free_mboxscan(obj);
1250                                 break;
1251                         case OBJ_mails:
1252                         case OBJ_new_mails:
1253                         case OBJ_seen_mails:
1254                         case OBJ_unseen_mails:
1255                         case OBJ_flagged_mails:
1256                         case OBJ_unflagged_mails:
1257                         case OBJ_forwarded_mails:
1258                         case OBJ_unforwarded_mails:
1259                         case OBJ_replied_mails:
1260                         case OBJ_unreplied_mails:
1261                         case OBJ_draft_mails:
1262                         case OBJ_trashed_mails:
1263                                 free_local_mails(obj);
1264                                 break;
1265                         case OBJ_imap_unseen:
1266                         case OBJ_imap_messages:
1267                         case OBJ_pop3_unseen:
1268                         case OBJ_pop3_used:
1269                                 free_mail_obj(obj);
1270                                 break;
1271                         case OBJ_if_empty:
1272                         case OBJ_if_match:
1273                                 free_text_objects(obj->sub, 1);
1274                                 free(obj->sub);
1275                                 break;
1276                         case OBJ_if_existing:
1277                         case OBJ_if_mounted:
1278                         case OBJ_if_running:
1279                                 free(data.s);
1280                                 break;
1281                         case OBJ_head:
1282                         case OBJ_tail:
1283                                 free_tailhead(obj);
1284                                 break;
1285                         case OBJ_text:
1286                         case OBJ_font:
1287                         case OBJ_image:
1288                         case OBJ_eval:
1289                                 free(data.s);
1290                                 break;
1291                         case OBJ_exec:
1292                         case OBJ_execbar:
1293 #ifdef X11
1294                         case OBJ_execgauge:
1295                         case OBJ_execgraph:
1296 #endif
1297                         case OBJ_execp:
1298                                 free_exec(obj);
1299                                 break;
1300 #ifdef HAVE_ICONV
1301                         case OBJ_iconv_start:
1302                                 free_iconv();
1303                                 break;
1304 #endif
1305 #ifdef __linux__
1306                         case OBJ_disk_protect:
1307                                 free(data.s);
1308                                 break;
1309                         case OBJ_if_gw:
1310                         case OBJ_gw_iface:
1311                         case OBJ_gw_ip:
1312                                 free_gateway_info();
1313                                 break;
1314                         case OBJ_ioscheduler:
1315                                 if(data.s)
1316                                         free(data.s);
1317                                 break;
1318 #endif
1319 #if (defined(__FreeBSD__) || defined(__linux__))
1320                         case OBJ_if_up:
1321                                 free_if_up(obj);
1322                                 break;
1323 #endif
1324 #ifdef XMMS2
1325                         case OBJ_xmms2_artist:
1326                                 if (info.xmms2.artist) {
1327                                         free(info.xmms2.artist);
1328                                         info.xmms2.artist = 0;
1329                                 }
1330                                 break;
1331                         case OBJ_xmms2_album:
1332                                 if (info.xmms2.album) {
1333                                         free(info.xmms2.album);
1334                                         info.xmms2.album = 0;
1335                                 }
1336                                 break;
1337                         case OBJ_xmms2_title:
1338                                 if (info.xmms2.title) {
1339                                         free(info.xmms2.title);
1340                                         info.xmms2.title = 0;
1341                                 }
1342                                 break;
1343                         case OBJ_xmms2_genre:
1344                                 if (info.xmms2.genre) {
1345                                         free(info.xmms2.genre);
1346                                         info.xmms2.genre = 0;
1347                                 }
1348                                 break;
1349                         case OBJ_xmms2_comment:
1350                                 if (info.xmms2.comment) {
1351                                         free(info.xmms2.comment);
1352                                         info.xmms2.comment = 0;
1353                                 }
1354                                 break;
1355                         case OBJ_xmms2_url:
1356                                 if (info.xmms2.url) {
1357                                         free(info.xmms2.url);
1358                                         info.xmms2.url = 0;
1359                                 }
1360                                 break;
1361                         case OBJ_xmms2_date:
1362                                 if (info.xmms2.date) {
1363                                         free(info.xmms2.date);
1364                                         info.xmms2.date = 0;
1365                                 }
1366                                 break;
1367                         case OBJ_xmms2_status:
1368                                 if (info.xmms2.status) {
1369                                         free(info.xmms2.status);
1370                                         info.xmms2.status = 0;
1371                                 }
1372                                 break;
1373                         case OBJ_xmms2_playlist:
1374                                 if (info.xmms2.playlist) {
1375                                         free(info.xmms2.playlist);
1376                                         info.xmms2.playlist = 0;
1377                                 }
1378                                 break;
1379                         case OBJ_xmms2_smart:
1380                                 if (info.xmms2.artist) {
1381                                         free(info.xmms2.artist);
1382                                         info.xmms2.artist = 0;
1383                                 }
1384                                 if (info.xmms2.title) {
1385                                         free(info.xmms2.title);
1386                                         info.xmms2.title = 0;
1387                                 }
1388                                 if (info.xmms2.url) {
1389                                         free(info.xmms2.url);
1390                                         info.xmms2.url = 0;
1391                                 }
1392                                 break;
1393 #endif
1394 #ifdef BMPX
1395                         case OBJ_bmpx_title:
1396                         case OBJ_bmpx_artist:
1397                         case OBJ_bmpx_album:
1398                         case OBJ_bmpx_track:
1399                         case OBJ_bmpx_uri:
1400                         case OBJ_bmpx_bitrate:
1401                                 break;
1402 #endif
1403 #ifdef EVE
1404                         case OBJ_eve:
1405                                 free_eve(obj);
1406                                 break;
1407 #endif
1408 #ifdef HAVE_CURL
1409                         case OBJ_curl:
1410                                 curl_obj_free(obj);
1411                                 break;
1412 #endif
1413 #ifdef RSS
1414                         case OBJ_rss:
1415                                 rss_free_obj_info(obj);
1416                                 break;
1417 #endif
1418 #ifdef WEATHER
1419                         case OBJ_weather:
1420                                 free_weather(obj);
1421                                 break;
1422 #endif
1423 #ifdef XOAP
1424                         case OBJ_weather_forecast:
1425                                 free_weather(obj);
1426                                 break;
1427 #endif
1428 #ifdef HAVE_LUA
1429                         case OBJ_lua:
1430                         case OBJ_lua_parse:
1431                         case OBJ_lua_bar:
1432 #ifdef X11
1433                         case OBJ_lua_graph:
1434                         case OBJ_lua_gauge:
1435 #endif /* X11 */
1436                                 free(data.s);
1437                                 break;
1438 #endif /* HAVE_LUA */
1439                         case OBJ_pre_exec:
1440                                 break;
1441 #ifndef __OpenBSD__
1442                         case OBJ_battery:
1443                                 free(data.s);
1444                                 break;
1445                         case OBJ_battery_short:
1446                                 free(data.s);
1447                                 break;
1448                         case OBJ_battery_time:
1449                                 free(data.s);
1450                                 break;
1451 #endif /* !__OpenBSD__ */
1452                         case OBJ_execpi:
1453                         case OBJ_execi:
1454                         case OBJ_execibar:
1455                         case OBJ_texeci:
1456 #ifdef X11
1457                         case OBJ_execigraph:
1458                         case OBJ_execigauge:
1459 #endif /* X11 */
1460                                 free_execi(obj);
1461                                 break;
1462                         case OBJ_nameserver:
1463                                 free_dns_data();
1464                                 break;
1465                         case OBJ_top:
1466                         case OBJ_top_mem:
1467                         case OBJ_top_time:
1468 #ifdef IOSTATS
1469                         case OBJ_top_io:
1470 #endif
1471                                 free_top(obj, internal);
1472                                 break;
1473 #ifdef HDDTEMP
1474                         case OBJ_hddtemp:
1475                                 if (data.s) {
1476                                         free(data.s);
1477                                         data.s = NULL;
1478                                 }
1479                                 free_hddtemp();
1480                                 break;
1481 #endif /* HDDTEMP */
1482                         case OBJ_entropy_avail:
1483                         case OBJ_entropy_perc:
1484                         case OBJ_entropy_poolsize:
1485                         case OBJ_entropy_bar:
1486                                 break;
1487                         case OBJ_user_names:
1488                                 if (info.users.names) {
1489                                         free(info.users.names);
1490                                         info.users.names = 0;
1491                                 }
1492                                 break;
1493                         case OBJ_user_terms:
1494                                 if (info.users.terms) {
1495                                         free(info.users.terms);
1496                                         info.users.terms = 0;
1497                                 }
1498                                 break;
1499                         case OBJ_user_times:
1500                                 if (info.users.times) {
1501                                         free(info.users.times);
1502                                         info.users.times = 0;
1503                                 }
1504                                 break;
1505 #ifdef IBM
1506                         case OBJ_smapi:
1507                         case OBJ_smapi_bat_perc:
1508                         case OBJ_smapi_bat_temp:
1509                         case OBJ_smapi_bat_power:
1510                                 free(data.s);
1511                                 break;
1512                         case OBJ_if_smapi_bat_installed:
1513                                 free(data.s);
1514                                 break;
1515 #endif /* IBM */
1516 #ifdef NVIDIA
1517                         case OBJ_nvidia:
1518                                 free_nvidia(obj);
1519                                 break;
1520 #endif /* NVIDIA */
1521 #ifdef MPD
1522                         case OBJ_mpd_title:
1523                         case OBJ_mpd_artist:
1524                         case OBJ_mpd_album:
1525                         case OBJ_mpd_random:
1526                         case OBJ_mpd_repeat:
1527                         case OBJ_mpd_vol:
1528                         case OBJ_mpd_bitrate:
1529                         case OBJ_mpd_status:
1530                         case OBJ_mpd_bar:
1531                         case OBJ_mpd_elapsed:
1532                         case OBJ_mpd_length:
1533                         case OBJ_mpd_track:
1534                         case OBJ_mpd_name:
1535                         case OBJ_mpd_file:
1536                         case OBJ_mpd_percent:
1537                         case OBJ_mpd_smart:
1538                         case OBJ_if_mpd_playing:
1539                                 free_mpd();
1540                                 break;
1541 #endif /* MPD */
1542 #ifdef MOC
1543                         case OBJ_moc_state:
1544                         case OBJ_moc_file:
1545                         case OBJ_moc_title:
1546                         case OBJ_moc_artist:
1547                         case OBJ_moc_song:
1548                         case OBJ_moc_album:
1549                         case OBJ_moc_totaltime:
1550                         case OBJ_moc_timeleft:
1551                         case OBJ_moc_curtime:
1552                         case OBJ_moc_bitrate:
1553                         case OBJ_moc_rate:
1554                                 free_moc();
1555                                 break;
1556 #endif /* MOC */
1557                         case OBJ_include:
1558                         case OBJ_blink:
1559                         case OBJ_to_bytes:
1560                                 if(obj->sub) {
1561                                         free_text_objects(obj->sub, 1);
1562                                         free(obj->sub);
1563                                 }
1564                                 break;
1565                         case OBJ_scroll:
1566                                 free_scroll(obj);
1567                                 break;
1568                         case OBJ_combine:
1569                                 free_combine(obj);
1570                                 break;
1571 #ifdef APCUPSD
1572                         case OBJ_apcupsd:
1573                         case OBJ_apcupsd_name:
1574                         case OBJ_apcupsd_model:
1575                         case OBJ_apcupsd_upsmode:
1576                         case OBJ_apcupsd_cable:
1577                         case OBJ_apcupsd_status:
1578                         case OBJ_apcupsd_linev:
1579                         case OBJ_apcupsd_load:
1580                         case OBJ_apcupsd_loadbar:
1581 #ifdef X11
1582                         case OBJ_apcupsd_loadgraph:
1583                         case OBJ_apcupsd_loadgauge:
1584 #endif /* X11 */
1585                         case OBJ_apcupsd_charge:
1586                         case OBJ_apcupsd_timeleft:
1587                         case OBJ_apcupsd_temp:
1588                         case OBJ_apcupsd_lastxfer:
1589                                 break;
1590 #endif /* APCUPSD */
1591 #ifdef TCP_PORT_MONITOR
1592                         case OBJ_tcp_portmon:
1593                                 tcp_portmon_free(obj);
1594                                 break;
1595 #endif /* TCP_PORT_MONITOR */
1596 #ifdef X11
1597                         case OBJ_desktop:
1598                         case OBJ_desktop_number:
1599                         case OBJ_desktop_name:
1600                                 if(info.x11.desktop.name && !internal) {
1601                                   free(info.x11.desktop.name);
1602                                   info.x11.desktop.name = NULL;
1603                                 }
1604                                 if(info.x11.desktop.all_names && !internal) {
1605                                   free(info.x11.desktop.all_names);
1606                                   info.x11.desktop.all_names = NULL;
1607                                 }
1608                                 break;
1609 #endif /* X11 */
1610                 }
1611                 free(obj);
1612         }
1613 #undef data
1614 }
1615