--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ Samba utility functions
+
+ Copyright (C) Andrew Tridgell 1992-2001
+ Copyright (C) Simo Sorce 2001-2002
+ Copyright (C) Martin Pool 2003
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+/**
+ * @file
+ * @brief String utilities.
+ **/
+
+/**
+ * Get the next token from a string, return False if none found.
+ * Handles double-quotes.
+ *
+ * Based on a routine by GJC@VILLAGE.COM.
+ * Extensively modified by Andrew.Tridgell@anu.edu.au
+ **/
+BOOL next_token(const char **ptr,char *buff, const char *sep, size_t bufsize)
+{
+ char *s;
+ char *pbuf;
+ BOOL quoted;
+ size_t len=1;
+
+ if (!ptr)
+ return(False);
+
+ s = (char *)*ptr;
+
+ /* default to simple separators */
+ if (!sep)
+ sep = " \t\n\r";
+
+ /* find the first non sep char */
+ while (*s && strchr_m(sep,*s))
+ s++;
+
+ /* nothing left? */
+ if (! *s)
+ return(False);
+
+ /* copy over the token */
+ pbuf = buff;
+ for (quoted = False; len < bufsize && *s && (quoted || !strchr_m(sep,*s)); s++) {
+ if ( *s == '\"' ) {
+ quoted = !quoted;
+ } else {
+ len++;
+ *pbuf++ = *s;
+ }
+ }
+
+ *ptr = (*s) ? s+1 : s;
+ *pbuf = 0;
+
+ return(True);
+}
+
+/**
+This is like next_token but is not re-entrant and "remembers" the first
+parameter so you can pass NULL. This is useful for user interface code
+but beware the fact that it is not re-entrant!
+**/
+
+static const char *last_ptr=NULL;
+
+BOOL next_token_nr(const char **ptr,char *buff, const char *sep, size_t bufsize)
+{
+ BOOL ret;
+ if (!ptr)
+ ptr = &last_ptr;
+
+ ret = next_token(ptr, buff, sep, bufsize);
+ last_ptr = *ptr;
+ return ret;
+}
+
+static uint16 tmpbuf[sizeof(pstring)];
+
+void set_first_token(char *ptr)
+{
+ last_ptr = ptr;
+}
+
+/**
+ Convert list of tokens to array; dependent on above routine.
+ Uses last_ptr from above - bit of a hack.
+**/
+
+char **toktocliplist(int *ctok, const char *sep)
+{
+ char *s=(char *)last_ptr;
+ int ictok=0;
+ char **ret, **iret;
+
+ if (!sep)
+ sep = " \t\n\r";
+
+ while(*s && strchr_m(sep,*s))
+ s++;
+
+ /* nothing left? */
+ if (!*s)
+ return(NULL);
+
+ do {
+ ictok++;
+ while(*s && (!strchr_m(sep,*s)))
+ s++;
+ while(*s && strchr_m(sep,*s))
+ *s++=0;
+ } while(*s);
+
+ *ctok=ictok;
+ s=(char *)last_ptr;
+
+ if (!(ret=iret=SMB_MALLOC_ARRAY(char *,ictok+1)))
+ return NULL;
+
+ while(ictok--) {
+ *iret++=s;
+ if (ictok > 0) {
+ while(*s++)
+ ;
+ while(!*s)
+ s++;
+ }
+ }
+
+ ret[*ctok] = NULL;
+ return ret;
+}
+
+/**
+ * Case insensitive string compararison.
+ *
+ * iconv does not directly give us a way to compare strings in
+ * arbitrary unix character sets -- all we can is convert and then
+ * compare. This is expensive.
+ *
+ * As an optimization, we do a first pass that considers only the
+ * prefix of the strings that is entirely 7-bit. Within this, we
+ * check whether they have the same value.
+ *
+ * Hopefully this will often give the answer without needing to copy.
+ * In particular it should speed comparisons to literal ascii strings
+ * or comparisons of strings that are "obviously" different.
+ *
+ * If we find a non-ascii character we fall back to converting via
+ * iconv.
+ *
+ * This should never be slower than convering the whole thing, and
+ * often faster.
+ *
+ * A different optimization would be to compare for bitwise equality
+ * in the binary encoding. (It would be possible thought hairy to do
+ * both simultaneously.) But in that case if they turn out to be
+ * different, we'd need to restart the whole thing.
+ *
+ * Even better is to implement strcasecmp for each encoding and use a
+ * function pointer.
+ **/
+int StrCaseCmp(const char *s, const char *t)
+{
+
+ const char *ps, *pt;
+ size_t size;
+ smb_ucs2_t *buffer_s, *buffer_t;
+ int ret;
+
+ for (ps = s, pt = t; ; ps++, pt++) {
+ char us, ut;
+
+ if (!*ps && !*pt)
+ return 0; /* both ended */
+ else if (!*ps)
+ return -1; /* s is a prefix */
+ else if (!*pt)
+ return +1; /* t is a prefix */
+ else if ((*ps & 0x80) || (*pt & 0x80))
+ /* not ascii anymore, do it the hard way from here on in */
+ break;
+
+ us = toupper_ascii(*ps);
+ ut = toupper_ascii(*pt);
+ if (us == ut)
+ continue;
+ else if (us < ut)
+ return -1;
+ else if (us > ut)
+ return +1;
+ }
+
+ size = push_ucs2_allocate(&buffer_s, ps);
+ if (size == (size_t)-1) {
+ return strcmp(ps, pt);
+ /* Not quite the right answer, but finding the right one
+ under this failure case is expensive, and it's pretty close */
+ }
+
+ size = push_ucs2_allocate(&buffer_t, pt);
+ if (size == (size_t)-1) {
+ SAFE_FREE(buffer_s);
+ return strcmp(ps, pt);
+ /* Not quite the right answer, but finding the right one
+ under this failure case is expensive, and it's pretty close */
+ }
+
+ ret = strcasecmp_w(buffer_s, buffer_t);
+ SAFE_FREE(buffer_s);
+ SAFE_FREE(buffer_t);
+ return ret;
+}
+
+
+/**
+ Case insensitive string compararison, length limited.
+**/
+int StrnCaseCmp(const char *s, const char *t, size_t n)
+{
+ pstring buf1, buf2;
+ unix_strupper(s, strlen(s)+1, buf1, sizeof(buf1));
+ unix_strupper(t, strlen(t)+1, buf2, sizeof(buf2));
+ return strncmp(buf1,buf2,n);
+}
+
+/**
+ * Compare 2 strings.
+ *
+ * @note The comparison is case-insensitive.
+ **/
+BOOL strequal(const char *s1, const char *s2)
+{
+ if (s1 == s2)
+ return(True);
+ if (!s1 || !s2)
+ return(False);
+
+ return(StrCaseCmp(s1,s2)==0);
+}
+
+/**
+ * Compare 2 strings up to and including the nth char.
+ *
+ * @note The comparison is case-insensitive.
+ **/
+BOOL strnequal(const char *s1,const char *s2,size_t n)
+{
+ if (s1 == s2)
+ return(True);
+ if (!s1 || !s2 || !n)
+ return(False);
+
+ return(StrnCaseCmp(s1,s2,n)==0);
+}
+
+/**
+ Compare 2 strings (case sensitive).
+**/
+
+BOOL strcsequal(const char *s1,const char *s2)
+{
+ if (s1 == s2)
+ return(True);
+ if (!s1 || !s2)
+ return(False);
+
+ return(strcmp(s1,s2)==0);
+}
+
+/**
+Do a case-insensitive, whitespace-ignoring string compare.
+**/
+
+int strwicmp(const char *psz1, const char *psz2)
+{
+ /* if BOTH strings are NULL, return TRUE, if ONE is NULL return */
+ /* appropriate value. */
+ if (psz1 == psz2)
+ return (0);
+ else if (psz1 == NULL)
+ return (-1);
+ else if (psz2 == NULL)
+ return (1);
+
+ /* sync the strings on first non-whitespace */
+ while (1) {
+ while (isspace((int)*psz1))
+ psz1++;
+ while (isspace((int)*psz2))
+ psz2++;
+ if (toupper_ascii(*psz1) != toupper_ascii(*psz2) || *psz1 == '\0'
+ || *psz2 == '\0')
+ break;
+ psz1++;
+ psz2++;
+ }
+ return (*psz1 - *psz2);
+}
+
+
+/**
+ Convert a string to upper case, but don't modify it.
+**/
+
+char *strupper_static(const char *s)
+{
+ static pstring str;
+
+ pstrcpy(str, s);
+ strupper_m(str);
+
+ return str;
+}
+
+/**
+ Convert a string to "normal" form.
+**/
+
+void strnorm(char *s, int case_default)
+{
+ if (case_default == CASE_UPPER)
+ strupper_m(s);
+ else
+ strlower_m(s);
+}
+
+/**
+ Check if a string is in "normal" case.
+**/
+
+BOOL strisnormal(const char *s, int case_default)
+{
+ if (case_default == CASE_UPPER)
+ return(!strhaslower(s));
+
+ return(!strhasupper(s));
+}
+
+
+/**
+ String replace.
+ NOTE: oldc and newc must be 7 bit characters
+**/
+
+void string_replace( pstring s, char oldc, char newc )
+{
+ char *p;
+
+ /* this is quite a common operation, so we want it to be
+ fast. We optimise for the ascii case, knowing that all our
+ supported multi-byte character sets are ascii-compatible
+ (ie. they match for the first 128 chars) */
+
+ for (p = s; *p; p++) {
+ if (*p & 0x80) /* mb string - slow path. */
+ break;
+ if (*p == oldc)
+ *p = newc;
+ }
+
+ if (!*p)
+ return;
+
+ /* Slow (mb) path. */
+#ifdef BROKEN_UNICODE_COMPOSE_CHARACTERS
+ /* With compose characters we must restart from the beginning. JRA. */
+ p = s;
+#endif
+ push_ucs2(NULL, tmpbuf, p, sizeof(tmpbuf), STR_TERMINATE);
+ string_replace_w(tmpbuf, UCS2_CHAR(oldc), UCS2_CHAR(newc));
+ pull_ucs2(NULL, p, tmpbuf, -1, sizeof(tmpbuf), STR_TERMINATE);
+}
+
+/**
+ Skip past some strings in a buffer.
+**/
+
+char *skip_string(char *buf,size_t n)
+{
+ while (n--)
+ buf += strlen(buf) + 1;
+ return(buf);
+}
+
+/**
+ Count the number of characters in a string. Normally this will
+ be the same as the number of bytes in a string for single byte strings,
+ but will be different for multibyte.
+**/
+
+size_t str_charnum(const char *s)
+{
+ uint16 tmpbuf2[sizeof(pstring)];
+ push_ucs2(NULL, tmpbuf2,s, sizeof(tmpbuf2), STR_TERMINATE);
+ return strlen_w(tmpbuf2);
+}
+
+/**
+ Count the number of characters in a string. Normally this will
+ be the same as the number of bytes in a string for single byte strings,
+ but will be different for multibyte.
+**/
+
+size_t str_ascii_charnum(const char *s)
+{
+ pstring tmpbuf2;
+ push_ascii(tmpbuf2, s, sizeof(tmpbuf2), STR_TERMINATE);
+ return strlen(tmpbuf2);
+}
+
+BOOL trim_char(char *s,char cfront,char cback)
+{
+ BOOL ret = False;
+ char *ep;
+ char *fp = s;
+
+ /* Ignore null or empty strings. */
+ if (!s || (s[0] == '\0'))
+ return False;
+
+ if (cfront) {
+ while (*fp && *fp == cfront)
+ fp++;
+ if (!*fp) {
+ /* We ate the string. */
+ s[0] = '\0';
+ return True;
+ }
+ if (fp != s)
+ ret = True;
+ }
+
+ ep = fp + strlen(fp) - 1;
+ if (cback) {
+ /* Attempt ascii only. Bail for mb strings. */
+ while ((ep >= fp) && (*ep == cback)) {
+ ret = True;
+ if ((ep > fp) && (((unsigned char)ep[-1]) & 0x80)) {
+ /* Could be mb... bail back to tim_string. */
+ char fs[2], bs[2];
+ if (cfront) {
+ fs[0] = cfront;
+ fs[1] = '\0';
+ }
+ bs[0] = cback;
+ bs[1] = '\0';
+ return trim_string(s, cfront ? fs : NULL, bs);
+ } else {
+ ep--;
+ }
+ }
+ if (ep < fp) {
+ /* We ate the string. */
+ s[0] = '\0';
+ return True;
+ }
+ }
+
+ ep[1] = '\0';
+ memmove(s, fp, ep-fp+2);
+ return ret;
+}
+
+/**
+ Trim the specified elements off the front and back of a string.
+**/
+
+BOOL trim_string(char *s,const char *front,const char *back)
+{
+ BOOL ret = False;
+ size_t front_len;
+ size_t back_len;
+ size_t len;
+
+ /* Ignore null or empty strings. */
+ if (!s || (s[0] == '\0'))
+ return False;
+
+ front_len = front? strlen(front) : 0;
+ back_len = back? strlen(back) : 0;
+
+ len = strlen(s);
+
+ if (front_len) {
+ while (len && strncmp(s, front, front_len)==0) {
+ /* Must use memmove here as src & dest can
+ * easily overlap. Found by valgrind. JRA. */
+ memmove(s, s+front_len, (len-front_len)+1);
+ len -= front_len;
+ ret=True;
+ }
+ }
+
+ if (back_len) {
+ while ((len >= back_len) && strncmp(s+len-back_len,back,back_len)==0) {
+ s[len-back_len]='\0';
+ len -= back_len;
+ ret=True;
+ }
+ }
+ return ret;
+}
+
+/**
+ Does a string have any uppercase chars in it?
+**/
+
+BOOL strhasupper(const char *s)
+{
+ smb_ucs2_t *ptr;
+ push_ucs2(NULL, tmpbuf,s, sizeof(tmpbuf), STR_TERMINATE);
+ for(ptr=tmpbuf;*ptr;ptr++)
+ if(isupper_w(*ptr))
+ return True;
+ return(False);
+}
+
+/**
+ Does a string have any lowercase chars in it?
+**/
+
+BOOL strhaslower(const char *s)
+{
+ smb_ucs2_t *ptr;
+ push_ucs2(NULL, tmpbuf,s, sizeof(tmpbuf), STR_TERMINATE);
+ for(ptr=tmpbuf;*ptr;ptr++)
+ if(islower_w(*ptr))
+ return True;
+ return(False);
+}
+
+/**
+ Find the number of 'c' chars in a string
+**/
+
+size_t count_chars(const char *s,char c)
+{
+ smb_ucs2_t *ptr;
+ int count;
+ smb_ucs2_t *alloc_tmpbuf = NULL;
+
+ if (push_ucs2_allocate(&alloc_tmpbuf, s) == (size_t)-1) {
+ return 0;
+ }
+
+ for(count=0,ptr=alloc_tmpbuf;*ptr;ptr++)
+ if(*ptr==UCS2_CHAR(c))
+ count++;
+
+ SAFE_FREE(alloc_tmpbuf);
+ return(count);
+}
+
+/**
+ Safe string copy into a known length string. maxlength does not
+ include the terminating zero.
+**/
+
+char *safe_strcpy_fn(const char *fn, int line, char *dest,const char *src, size_t maxlength)
+{
+ size_t len;
+
+ if (!dest) {
+ DEBUG(0,("ERROR: NULL dest in safe_strcpy, called from [%s][%d]\n", fn, line));
+ return NULL;
+ }
+
+#ifdef DEVELOPER
+ clobber_region(fn,line,dest, maxlength+1);
+#endif
+
+ if (!src) {
+ *dest = 0;
+ return dest;
+ }
+
+ len = strnlen(src, maxlength+1);
+
+ if (len > maxlength) {
+ DEBUG(0,("ERROR: string overflow by %lu (%lu - %lu) in safe_strcpy [%.50s]\n",
+ (unsigned long)(len-maxlength), (unsigned long)len,
+ (unsigned long)maxlength, src));
+ len = maxlength;
+ }
+
+ memmove(dest, src, len);
+ dest[len] = 0;
+ return dest;
+}
+
+/**
+ Safe string cat into a string. maxlength does not
+ include the terminating zero.
+**/
+char *safe_strcat_fn(const char *fn, int line, char *dest, const char *src, size_t maxlength)
+{
+ size_t src_len, dest_len;
+
+ if (!dest) {
+ DEBUG(0,("ERROR: NULL dest in safe_strcat, called from [%s][%d]\n", fn, line));
+ return NULL;
+ }
+
+ if (!src)
+ return dest;
+
+ src_len = strnlen(src, maxlength + 1);
+ dest_len = strnlen(dest, maxlength + 1);
+
+#ifdef DEVELOPER
+ clobber_region(fn, line, dest + dest_len, maxlength + 1 - dest_len);
+#endif
+
+ if (src_len + dest_len > maxlength) {
+ DEBUG(0,("ERROR: string overflow by %d in safe_strcat [%.50s]\n",
+ (int)(src_len + dest_len - maxlength), src));
+ if (maxlength > dest_len) {
+ memcpy(&dest[dest_len], src, maxlength - dest_len);
+ }
+ dest[maxlength] = 0;
+ return NULL;
+ }
+
+ memcpy(&dest[dest_len], src, src_len);
+ dest[dest_len + src_len] = 0;
+ return dest;
+}
+
+/**
+ Paranoid strcpy into a buffer of given length (includes terminating
+ zero. Strips out all but 'a-Z0-9' and the character in other_safe_chars
+ and replaces with '_'. Deliberately does *NOT* check for multibyte
+ characters. Don't change it !
+**/
+char *alpha_strcpy_fn(const char *fn, int line, char *dest, const char *src, const char *other_safe_chars, size_t maxlength)
+{
+ size_t len, i;
+
+#ifdef DEVELOPER
+ clobber_region(fn, line, dest, maxlength);
+#endif
+
+ if (!dest) {
+ DEBUG(0,("ERROR: NULL dest in alpha_strcpy, called from [%s][%d]\n", fn, line));
+ return NULL;
+ }
+
+ if (!src) {
+ *dest = 0;
+ return dest;
+ }
+
+ len = strlen(src);
+ if (len >= maxlength)
+ len = maxlength - 1;
+
+ if (!other_safe_chars)
+ other_safe_chars = "";
+
+ for(i = 0; i < len; i++) {
+ int val = (src[i] & 0xff);
+ if (isupper_ascii(val) || islower_ascii(val) || isdigit(val) || strchr_m(other_safe_chars, val))
+ dest[i] = src[i];
+ else
+ dest[i] = '_';
+ }
+
+ dest[i] = '\0';
+
+ return dest;
+}
+
+/**
+ Like strncpy but always null terminates. Make sure there is room!
+ The variable n should always be one less than the available size.
+**/
+char *StrnCpy_fn(const char *fn, int line,char *dest,const char *src,size_t n)
+{
+ char *d = dest;
+
+#ifdef DEVELOPER
+ clobber_region(fn, line, dest, n+1);
+#endif
+
+ if (!dest) {
+ DEBUG(0,("ERROR: NULL dest in StrnCpy, called from [%s][%d]\n", fn, line));
+ return(NULL);
+ }
+
+ if (!src) {
+ *dest = 0;
+ return(dest);
+ }
+
+ while (n-- && (*d = *src)) {
+ d++;
+ src++;
+ }
+
+ *d = 0;
+ return(dest);
+}
+
+#if 0
+/**
+ Like strncpy but copies up to the character marker. always null terminates.
+ returns a pointer to the character marker in the source string (src).
+**/
+
+static char *strncpyn(char *dest, const char *src, size_t n, char c)
+{
+ char *p;
+ size_t str_len;
+
+#ifdef DEVELOPER
+ clobber_region(dest, n+1);
+#endif
+ p = strchr_m(src, c);
+ if (p == NULL) {
+ DEBUG(5, ("strncpyn: separator character (%c) not found\n", c));
+ return NULL;
+ }
+
+ str_len = PTR_DIFF(p, src);
+ strncpy(dest, src, MIN(n, str_len));
+ dest[str_len] = '\0';
+
+ return p;
+}
+#endif
+
+/**
+ Routine to get hex characters and turn them into a 16 byte array.
+ the array can be variable length, and any non-hex-numeric
+ characters are skipped. "0xnn" or "0Xnn" is specially catered
+ for.
+
+ valid examples: "0A5D15"; "0x15, 0x49, 0xa2"; "59\ta9\te3\n"
+
+**/
+
+size_t strhex_to_str(char *p, size_t len, const char *strhex)
+{
+ size_t i;
+ size_t num_chars = 0;
+ unsigned char lonybble, hinybble;
+ const char *hexchars = "0123456789ABCDEF";
+ char *p1 = NULL, *p2 = NULL;
+
+ for (i = 0; i < len && strhex[i] != 0; i++) {
+ if (strnequal(hexchars, "0x", 2)) {
+ i++; /* skip two chars */
+ continue;
+ }
+
+ if (!(p1 = strchr_m(hexchars, toupper_ascii(strhex[i]))))
+ break;
+
+ i++; /* next hex digit */
+
+ if (!(p2 = strchr_m(hexchars, toupper_ascii(strhex[i]))))
+ break;
+
+ /* get the two nybbles */
+ hinybble = PTR_DIFF(p1, hexchars);
+ lonybble = PTR_DIFF(p2, hexchars);
+
+ p[num_chars] = (hinybble << 4) | lonybble;
+ num_chars++;
+
+ p1 = NULL;
+ p2 = NULL;
+ }
+ return num_chars;
+}
+
+DATA_BLOB strhex_to_data_blob(TALLOC_CTX *mem_ctx, const char *strhex)
+{
+ DATA_BLOB ret_blob;
+
+ if (mem_ctx != NULL)
+ ret_blob = data_blob_talloc(mem_ctx, NULL, strlen(strhex)/2+1);
+ else
+ ret_blob = data_blob(NULL, strlen(strhex)/2+1);
+
+ ret_blob.length = strhex_to_str((char*)ret_blob.data,
+ strlen(strhex),
+ strhex);
+
+ return ret_blob;
+}
+
+/**
+ * Routine to print a buffer as HEX digits, into an allocated string.
+ */
+
+char *hex_encode(TALLOC_CTX *mem_ctx, const unsigned char *buff_in, size_t len)
+{
+ int i;
+ char *hex_buffer;
+
+ hex_buffer = TALLOC_ARRAY(mem_ctx, char, (len*2)+1);
+
+ for (i = 0; i < len; i++)
+ slprintf(&hex_buffer[i*2], 3, "%02X", buff_in[i]);
+
+ return hex_buffer;
+}
+
+/**
+ Check if a string is part of a list.
+**/
+
+BOOL in_list(const char *s, const char *list, BOOL casesensitive)
+{
+ pstring tok;
+ const char *p=list;
+
+ if (!list)
+ return(False);
+
+ while (next_token(&p,tok,LIST_SEP,sizeof(tok))) {
+ if (casesensitive) {
+ if (strcmp(tok,s) == 0)
+ return(True);
+ } else {
+ if (StrCaseCmp(tok,s) == 0)
+ return(True);
+ }
+ }
+ return(False);
+}
+
+/* this is used to prevent lots of mallocs of size 1 */
+static char *null_string = NULL;
+
+/**
+ Set a string value, allocing the space for the string
+**/
+
+static BOOL string_init(char **dest,const char *src)
+{
+ size_t l;
+ if (!src)
+ src = "";
+
+ l = strlen(src);
+
+ if (l == 0) {
+ if (!null_string) {
+ if((null_string = (char *)SMB_MALLOC(1)) == NULL) {
+ DEBUG(0,("string_init: malloc fail for null_string.\n"));
+ return False;
+ }
+ *null_string = 0;
+ }
+ *dest = null_string;
+ } else {
+ (*dest) = SMB_STRDUP(src);
+ if ((*dest) == NULL) {
+ DEBUG(0,("Out of memory in string_init\n"));
+ return False;
+ }
+ }
+ return(True);
+}
+
+/**
+ Free a string value.
+**/
+
+void string_free(char **s)
+{
+ if (!s || !(*s))
+ return;
+ if (*s == null_string)
+ *s = NULL;
+ SAFE_FREE(*s);
+}
+
+/**
+ Set a string value, deallocating any existing space, and allocing the space
+ for the string
+**/
+
+BOOL string_set(char **dest,const char *src)
+{
+ string_free(dest);
+ return(string_init(dest,src));
+}
+
+/**
+ Substitute a string for a pattern in another string. Make sure there is
+ enough room!
+
+ This routine looks for pattern in s and replaces it with
+ insert. It may do multiple replacements or just one.
+
+ Any of " ; ' $ or ` in the insert string are replaced with _
+ if len==0 then the string cannot be extended. This is different from the old
+ use of len==0 which was for no length checks to be done.
+**/
+
+void string_sub2(char *s,const char *pattern, const char *insert, size_t len,
+ BOOL remove_unsafe_characters, BOOL replace_once)
+{
+ char *p;
+ ssize_t ls,lp,li, i;
+
+ if (!insert || !pattern || !*pattern || !s)
+ return;
+
+ ls = (ssize_t)strlen(s);
+ lp = (ssize_t)strlen(pattern);
+ li = (ssize_t)strlen(insert);
+
+ if (len == 0)
+ len = ls + 1; /* len is number of *bytes* */
+
+ while (lp <= ls && (p = strstr_m(s,pattern))) {
+ if (ls + (li-lp) >= len) {
+ DEBUG(0,("ERROR: string overflow by %d in string_sub(%.50s, %d)\n",
+ (int)(ls + (li-lp) - len),
+ pattern, (int)len));
+ break;
+ }
+ if (li != lp) {
+ memmove(p+li,p+lp,strlen(p+lp)+1);
+ }
+ for (i=0;i<li;i++) {
+ switch (insert[i]) {
+ case '`':
+ case '"':
+ case '\'':
+ case ';':
+ case '$':
+ case '%':
+ case '\r':
+ case '\n':
+ if ( remove_unsafe_characters ) {
+ p[i] = '_';
+ /* yes this break should be here since we want to
+ fall throw if not replacing unsafe chars */
+ break;
+ }
+ default:
+ p[i] = insert[i];
+ }
+ }
+ s = p + li;
+ ls += (li-lp);
+
+ if (replace_once)
+ break;
+ }
+}
+
+void string_sub_once(char *s, const char *pattern, const char *insert, size_t len)
+{
+ string_sub2( s, pattern, insert, len, True, True );
+}
+
+void string_sub(char *s,const char *pattern, const char *insert, size_t len)
+{
+ string_sub2( s, pattern, insert, len, True, False );
+}
+
+void fstring_sub(char *s,const char *pattern,const char *insert)
+{
+ string_sub(s, pattern, insert, sizeof(fstring));
+}
+
+void pstring_sub(char *s,const char *pattern,const char *insert)
+{
+ string_sub(s, pattern, insert, sizeof(pstring));
+}
+
+/**
+ Similar to string_sub, but it will accept only allocated strings
+ and may realloc them so pay attention at what you pass on no
+ pointers inside strings, no pstrings or const may be passed
+ as string.
+**/
+
+char *realloc_string_sub(char *string, const char *pattern,
+ const char *insert)
+{
+ char *p, *in;
+ char *s;
+ ssize_t ls,lp,li,ld, i;
+
+ if (!insert || !pattern || !*pattern || !string || !*string)
+ return NULL;
+
+ s = string;
+
+ in = SMB_STRDUP(insert);
+ if (!in) {
+ DEBUG(0, ("realloc_string_sub: out of memory!\n"));
+ return NULL;
+ }
+ ls = (ssize_t)strlen(s);
+ lp = (ssize_t)strlen(pattern);
+ li = (ssize_t)strlen(insert);
+ ld = li - lp;
+ for (i=0;i<li;i++) {
+ switch (in[i]) {
+ case '`':
+ case '"':
+ case '\'':
+ case ';':
+ case '$':
+ case '%':
+ case '\r':
+ case '\n':
+ in[i] = '_';
+ default:
+ /* ok */
+ break;
+ }
+ }
+
+ while ((p = strstr_m(s,pattern))) {
+ if (ld > 0) {
+ int offset = PTR_DIFF(s,string);
+ char *t = SMB_REALLOC(string, ls + ld + 1);
+ if (!t) {
+ DEBUG(0, ("realloc_string_sub: out of memory!\n"));
+ SAFE_FREE(in);
+ return NULL;
+ }
+ string = t;
+ p = t + offset + (p - s);
+ }
+ if (li != lp) {
+ memmove(p+li,p+lp,strlen(p+lp)+1);
+ }
+ memcpy(p, in, li);
+ s = p + li;
+ ls += ld;
+ }
+ SAFE_FREE(in);
+ return string;
+}
+
+/* Same as string_sub, but returns a talloc'ed string */
+
+char *talloc_string_sub(TALLOC_CTX *mem_ctx, const char *src,
+ const char *pattern, const char *insert)
+{
+ char *p, *in;
+ char *s;
+ char *string;
+ ssize_t ls,lp,li,ld, i;
+
+ if (!insert || !pattern || !*pattern || !src || !*src)
+ return NULL;
+
+ string = talloc_strdup(mem_ctx, src);
+ if (string == NULL) {
+ DEBUG(0, ("talloc_strdup failed\n"));
+ return NULL;
+ }
+
+ s = string;
+
+ in = SMB_STRDUP(insert);
+ if (!in) {
+ DEBUG(0, ("talloc_string_sub: out of memory!\n"));
+ return NULL;
+ }
+ ls = (ssize_t)strlen(s);
+ lp = (ssize_t)strlen(pattern);
+ li = (ssize_t)strlen(insert);
+ ld = li - lp;
+ for (i=0;i<li;i++) {
+ switch (in[i]) {
+ case '`':
+ case '"':
+ case '\'':
+ case ';':
+ case '$':
+ case '%':
+ case '\r':
+ case '\n':
+ in[i] = '_';
+ default:
+ /* ok */
+ break;
+ }
+ }
+
+ while ((p = strstr_m(s,pattern))) {
+ if (ld > 0) {
+ int offset = PTR_DIFF(s,string);
+ char *t = TALLOC_REALLOC(mem_ctx, string, ls + ld + 1);
+ if (!t) {
+ DEBUG(0, ("talloc_string_sub: out of "
+ "memory!\n"));
+ SAFE_FREE(in);
+ return NULL;
+ }
+ string = t;
+ p = t + offset + (p - s);
+ }
+ if (li != lp) {
+ memmove(p+li,p+lp,strlen(p+lp)+1);
+ }
+ memcpy(p, in, li);
+ s = p + li;
+ ls += ld;
+ }
+ SAFE_FREE(in);
+ return string;
+}
+
+/**
+ Similar to string_sub() but allows for any character to be substituted.
+ Use with caution!
+ if len==0 then the string cannot be extended. This is different from the old
+ use of len==0 which was for no length checks to be done.
+**/
+
+void all_string_sub(char *s,const char *pattern,const char *insert, size_t len)
+{
+ char *p;
+ ssize_t ls,lp,li;
+
+ if (!insert || !pattern || !s)
+ return;
+
+ ls = (ssize_t)strlen(s);
+ lp = (ssize_t)strlen(pattern);
+ li = (ssize_t)strlen(insert);
+
+ if (!*pattern)
+ return;
+
+ if (len == 0)
+ len = ls + 1; /* len is number of *bytes* */
+
+ while (lp <= ls && (p = strstr_m(s,pattern))) {
+ if (ls + (li-lp) >= len) {
+ DEBUG(0,("ERROR: string overflow by %d in all_string_sub(%.50s, %d)\n",
+ (int)(ls + (li-lp) - len),
+ pattern, (int)len));
+ break;
+ }
+ if (li != lp) {
+ memmove(p+li,p+lp,strlen(p+lp)+1);
+ }
+ memcpy(p, insert, li);
+ s = p + li;
+ ls += (li-lp);
+ }
+}
+
+/**
+ Similar to all_string_sub but for unicode strings.
+ Return a new allocated unicode string.
+ similar to string_sub() but allows for any character to be substituted.
+ Use with caution!
+**/
+
+static smb_ucs2_t *all_string_sub_w(const smb_ucs2_t *s, const smb_ucs2_t *pattern,
+ const smb_ucs2_t *insert)
+{
+ smb_ucs2_t *r, *rp;
+ const smb_ucs2_t *sp;
+ size_t lr, lp, li, lt;
+
+ if (!insert || !pattern || !*pattern || !s)
+ return NULL;
+
+ lt = (size_t)strlen_w(s);
+ lp = (size_t)strlen_w(pattern);
+ li = (size_t)strlen_w(insert);
+
+ if (li > lp) {
+ const smb_ucs2_t *st = s;
+ int ld = li - lp;
+ while ((sp = strstr_w(st, pattern))) {
+ st = sp + lp;
+ lt += ld;
+ }
+ }
+
+ r = rp = SMB_MALLOC_ARRAY(smb_ucs2_t, lt + 1);
+ if (!r) {
+ DEBUG(0, ("all_string_sub_w: out of memory!\n"));
+ return NULL;
+ }
+
+ while ((sp = strstr_w(s, pattern))) {
+ memcpy(rp, s, (sp - s));
+ rp += ((sp - s) / sizeof(smb_ucs2_t));
+ memcpy(rp, insert, (li * sizeof(smb_ucs2_t)));
+ s = sp + lp;
+ rp += li;
+ }
+ lr = ((rp - r) / sizeof(smb_ucs2_t));
+ if (lr < lt) {
+ memcpy(rp, s, ((lt - lr) * sizeof(smb_ucs2_t)));
+ rp += (lt - lr);
+ }
+ *rp = 0;
+
+ return r;
+}
+
+smb_ucs2_t *all_string_sub_wa(smb_ucs2_t *s, const char *pattern,
+ const char *insert)
+{
+ wpstring p, i;
+
+ if (!insert || !pattern || !s)
+ return NULL;
+ push_ucs2(NULL, p, pattern, sizeof(wpstring) - 1, STR_TERMINATE);
+ push_ucs2(NULL, i, insert, sizeof(wpstring) - 1, STR_TERMINATE);
+ return all_string_sub_w(s, p, i);
+}
+
+#if 0
+/**
+ Splits out the front and back at a separator.
+**/
+
+static void split_at_last_component(char *path, char *front, char sep, char *back)
+{
+ char *p = strrchr_m(path, sep);
+
+ if (p != NULL)
+ *p = 0;
+
+ if (front != NULL)
+ pstrcpy(front, path);
+
+ if (p != NULL) {
+ if (back != NULL)
+ pstrcpy(back, p+1);
+ *p = '\\';
+ } else {
+ if (back != NULL)
+ back[0] = 0;
+ }
+}
+#endif
+
+/**
+ Write an octal as a string.
+**/
+
+const char *octal_string(int i)
+{
+ static char ret[64];
+ if (i == -1)
+ return "-1";
+ slprintf(ret, sizeof(ret)-1, "0%o", i);
+ return ret;
+}
+
+
+/**
+ Truncate a string at a specified length.
+**/
+
+char *string_truncate(char *s, unsigned int length)
+{
+ if (s && strlen(s) > length)
+ s[length] = 0;
+ return s;
+}
+
+/**
+ Strchr and strrchr_m are very hard to do on general multi-byte strings.
+ We convert via ucs2 for now.
+**/
+
+char *strchr_m(const char *src, char c)
+{
+ wpstring ws;
+ pstring s2;
+ smb_ucs2_t *p;
+ const char *s;
+
+ /* characters below 0x3F are guaranteed to not appear in
+ non-initial position in multi-byte charsets */
+ if ((c & 0xC0) == 0) {
+ return strchr(src, c);
+ }
+
+ /* this is quite a common operation, so we want it to be
+ fast. We optimise for the ascii case, knowing that all our
+ supported multi-byte character sets are ascii-compatible
+ (ie. they match for the first 128 chars) */
+
+ for (s = src; *s && !(((unsigned char)s[0]) & 0x80); s++) {
+ if (*s == c)
+ return (char *)s;
+ }
+
+ if (!*s)
+ return NULL;
+
+#ifdef BROKEN_UNICODE_COMPOSE_CHARACTERS
+ /* With compose characters we must restart from the beginning. JRA. */
+ s = src;
+#endif
+
+ push_ucs2(NULL, ws, s, sizeof(ws), STR_TERMINATE);
+ p = strchr_w(ws, UCS2_CHAR(c));
+ if (!p)
+ return NULL;
+ *p = 0;
+ pull_ucs2_pstring(s2, ws);
+ return (char *)(s+strlen(s2));
+}
+
+char *strrchr_m(const char *s, char c)
+{
+ /* characters below 0x3F are guaranteed to not appear in
+ non-initial position in multi-byte charsets */
+ if ((c & 0xC0) == 0) {
+ return strrchr(s, c);
+ }
+
+ /* this is quite a common operation, so we want it to be
+ fast. We optimise for the ascii case, knowing that all our
+ supported multi-byte character sets are ascii-compatible
+ (ie. they match for the first 128 chars). Also, in Samba
+ we only search for ascii characters in 'c' and that
+ in all mb character sets with a compound character
+ containing c, if 'c' is not a match at position
+ p, then p[-1] > 0x7f. JRA. */
+
+ {
+ size_t len = strlen(s);
+ const char *cp = s;
+ BOOL got_mb = False;
+
+ if (len == 0)
+ return NULL;
+ cp += (len - 1);
+ do {
+ if (c == *cp) {
+ /* Could be a match. Part of a multibyte ? */
+ if ((cp > s) && (((unsigned char)cp[-1]) & 0x80)) {
+ /* Yep - go slow :-( */
+ got_mb = True;
+ break;
+ }
+ /* No - we have a match ! */
+ return (char *)cp;
+ }
+ } while (cp-- != s);
+ if (!got_mb)
+ return NULL;
+ }
+
+ /* String contained a non-ascii char. Slow path. */
+ {
+ wpstring ws;
+ pstring s2;
+ smb_ucs2_t *p;
+
+ push_ucs2(NULL, ws, s, sizeof(ws), STR_TERMINATE);
+ p = strrchr_w(ws, UCS2_CHAR(c));
+ if (!p)
+ return NULL;
+ *p = 0;
+ pull_ucs2_pstring(s2, ws);
+ return (char *)(s+strlen(s2));
+ }
+}
+
+/***********************************************************************
+ Return the equivalent of doing strrchr 'n' times - always going
+ backwards.
+***********************************************************************/
+
+char *strnrchr_m(const char *s, char c, unsigned int n)
+{
+ wpstring ws;
+ pstring s2;
+ smb_ucs2_t *p;
+
+ push_ucs2(NULL, ws, s, sizeof(ws), STR_TERMINATE);
+ p = strnrchr_w(ws, UCS2_CHAR(c), n);
+ if (!p)
+ return NULL;
+ *p = 0;
+ pull_ucs2_pstring(s2, ws);
+ return (char *)(s+strlen(s2));
+}
+
+/***********************************************************************
+ strstr_m - We convert via ucs2 for now.
+***********************************************************************/
+
+char *strstr_m(const char *src, const char *findstr)
+{
+ smb_ucs2_t *p;
+ smb_ucs2_t *src_w, *find_w;
+ const char *s;
+ char *s2;
+ char *retp;
+
+ size_t findstr_len = 0;
+
+ /* for correctness */
+ if (!findstr[0]) {
+ return (char*)src;
+ }
+
+ /* Samba does single character findstr calls a *lot*. */
+ if (findstr[1] == '\0')
+ return strchr_m(src, *findstr);
+
+ /* We optimise for the ascii case, knowing that all our
+ supported multi-byte character sets are ascii-compatible
+ (ie. they match for the first 128 chars) */
+
+ for (s = src; *s && !(((unsigned char)s[0]) & 0x80); s++) {
+ if (*s == *findstr) {
+ if (!findstr_len)
+ findstr_len = strlen(findstr);
+
+ if (strncmp(s, findstr, findstr_len) == 0) {
+ return (char *)s;
+ }
+ }
+ }
+
+ if (!*s)
+ return NULL;
+
+#if 1 /* def BROKEN_UNICODE_COMPOSE_CHARACTERS */
+ /* 'make check' fails unless we do this */
+
+ /* With compose characters we must restart from the beginning. JRA. */
+ s = src;
+#endif
+
+ if (push_ucs2_allocate(&src_w, src) == (size_t)-1) {
+ DEBUG(0,("strstr_m: src malloc fail\n"));
+ return NULL;
+ }
+
+ if (push_ucs2_allocate(&find_w, findstr) == (size_t)-1) {
+ SAFE_FREE(src_w);
+ DEBUG(0,("strstr_m: find malloc fail\n"));
+ return NULL;
+ }
+
+ p = strstr_w(src_w, find_w);
+
+ if (!p) {
+ SAFE_FREE(src_w);
+ SAFE_FREE(find_w);
+ return NULL;
+ }
+
+ *p = 0;
+ if (pull_ucs2_allocate(&s2, src_w) == (size_t)-1) {
+ SAFE_FREE(src_w);
+ SAFE_FREE(find_w);
+ DEBUG(0,("strstr_m: dest malloc fail\n"));
+ return NULL;
+ }
+ retp = (char *)(s+strlen(s2));
+ SAFE_FREE(src_w);
+ SAFE_FREE(find_w);
+ SAFE_FREE(s2);
+ return retp;
+}
+
+/**
+ Convert a string to lower case.
+**/
+
+void strlower_m(char *s)
+{
+ size_t len;
+ int errno_save;
+
+ /* this is quite a common operation, so we want it to be
+ fast. We optimise for the ascii case, knowing that all our
+ supported multi-byte character sets are ascii-compatible
+ (ie. they match for the first 128 chars) */
+
+ while (*s && !(((unsigned char)s[0]) & 0x80)) {
+ *s = tolower_ascii((unsigned char)*s);
+ s++;
+ }
+
+ if (!*s)
+ return;
+
+ /* I assume that lowercased string takes the same number of bytes
+ * as source string even in UTF-8 encoding. (VIV) */
+ len = strlen(s) + 1;
+ errno_save = errno;
+ errno = 0;
+ unix_strlower(s,len,s,len);
+ /* Catch mb conversion errors that may not terminate. */
+ if (errno)
+ s[len-1] = '\0';
+ errno = errno_save;
+}
+
+/**
+ Convert a string to upper case.
+**/
+
+void strupper_m(char *s)
+{
+ size_t len;
+ int errno_save;
+
+ /* this is quite a common operation, so we want it to be
+ fast. We optimise for the ascii case, knowing that all our
+ supported multi-byte character sets are ascii-compatible
+ (ie. they match for the first 128 chars) */
+
+ while (*s && !(((unsigned char)s[0]) & 0x80)) {
+ *s = toupper_ascii((unsigned char)*s);
+ s++;
+ }
+
+ if (!*s)
+ return;
+
+ /* I assume that lowercased string takes the same number of bytes
+ * as source string even in multibyte encoding. (VIV) */
+ len = strlen(s) + 1;
+ errno_save = errno;
+ errno = 0;
+ unix_strupper(s,len,s,len);
+ /* Catch mb conversion errors that may not terminate. */
+ if (errno)
+ s[len-1] = '\0';
+ errno = errno_save;
+}
+
+/**
+ Return a RFC2254 binary string representation of a buffer.
+ Used in LDAP filters.
+ Caller must free.
+**/
+
+char *binary_string(char *buf, int len)
+{
+ char *s;
+ int i, j;
+ const char *hex = "0123456789ABCDEF";
+ s = SMB_MALLOC(len * 3 + 1);
+ if (!s)
+ return NULL;
+ for (j=i=0;i<len;i++) {
+ s[j] = '\\';
+ s[j+1] = hex[((unsigned char)buf[i]) >> 4];
+ s[j+2] = hex[((unsigned char)buf[i]) & 0xF];
+ j += 3;
+ }
+ s[j] = 0;
+ return s;
+}
+
+/**
+ Just a typesafety wrapper for snprintf into a pstring.
+**/
+
+ int pstr_sprintf(pstring s, const char *fmt, ...)
+{
+ va_list ap;
+ int ret;
+
+ va_start(ap, fmt);
+ ret = vsnprintf(s, PSTRING_LEN, fmt, ap);
+ va_end(ap);
+ return ret;
+}
+
+
+/**
+ Just a typesafety wrapper for snprintf into a fstring.
+**/
+
+int fstr_sprintf(fstring s, const char *fmt, ...)
+{
+ va_list ap;
+ int ret;
+
+ va_start(ap, fmt);
+ ret = vsnprintf(s, FSTRING_LEN, fmt, ap);
+ va_end(ap);
+ return ret;
+}
+
+
+#if !defined(HAVE_STRNDUP) || defined(BROKEN_STRNDUP)
+/**
+ Some platforms don't have strndup.
+**/
+#if defined(PARANOID_MALLOC_CHECKER)
+#undef strndup
+#endif
+
+ char *strndup(const char *s, size_t n)
+{
+ char *ret;
+
+ n = strnlen(s, n);
+ ret = SMB_MALLOC(n+1);
+ if (!ret)
+ return NULL;
+ memcpy(ret, s, n);
+ ret[n] = 0;
+
+ return ret;
+}
+
+#if defined(PARANOID_MALLOC_CHECKER)
+#define strndup(s,n) __ERROR_DONT_USE_STRNDUP_DIRECTLY
+#endif
+
+#endif
+
+#if !defined(HAVE_STRNLEN) || defined(BROKEN_STRNLEN)
+/**
+ Some platforms don't have strnlen
+**/
+
+ size_t strnlen(const char *s, size_t n)
+{
+ size_t i;
+ for (i=0; i<n && s[i] != '\0'; i++)
+ /* noop */ ;
+ return i;
+}
+#endif
+
+/**
+ List of Strings manipulation functions
+**/
+
+#define S_LIST_ABS 16 /* List Allocation Block Size */
+
+char **str_list_make(const char *string, const char *sep)
+{
+ char **list, **rlist;
+ const char *str;
+ char *s;
+ int num, lsize;
+ pstring tok;
+
+ if (!string || !*string)
+ return NULL;
+ s = SMB_STRDUP(string);
+ if (!s) {
+ DEBUG(0,("str_list_make: Unable to allocate memory"));
+ return NULL;
+ }
+ if (!sep) sep = LIST_SEP;
+
+ num = lsize = 0;
+ list = NULL;
+
+ str = s;
+ while (next_token(&str, tok, sep, sizeof(tok))) {
+ if (num == lsize) {
+ lsize += S_LIST_ABS;
+ rlist = SMB_REALLOC_ARRAY(list, char *, lsize +1);
+ if (!rlist) {
+ DEBUG(0,("str_list_make: Unable to allocate memory"));
+ str_list_free(&list);
+ SAFE_FREE(s);
+ return NULL;
+ } else
+ list = rlist;
+ memset (&list[num], 0, ((sizeof(char**)) * (S_LIST_ABS +1)));
+ }
+
+ list[num] = SMB_STRDUP(tok);
+ if (!list[num]) {
+ DEBUG(0,("str_list_make: Unable to allocate memory"));
+ str_list_free(&list);
+ SAFE_FREE(s);
+ return NULL;
+ }
+
+ num++;
+ }
+
+ SAFE_FREE(s);
+ return list;
+}
+
+BOOL str_list_copy(char ***dest, const char **src)
+{
+ char **list, **rlist;
+ int num, lsize;
+
+ *dest = NULL;
+ if (!src)
+ return False;
+
+ num = lsize = 0;
+ list = NULL;
+
+ while (src[num]) {
+ if (num == lsize) {
+ lsize += S_LIST_ABS;
+ rlist = SMB_REALLOC_ARRAY(list, char *, lsize +1);
+ if (!rlist) {
+ DEBUG(0,("str_list_copy: Unable to re-allocate memory"));
+ str_list_free(&list);
+ return False;
+ } else
+ list = rlist;
+ memset (&list[num], 0, ((sizeof(char **)) * (S_LIST_ABS +1)));
+ }
+
+ list[num] = SMB_STRDUP(src[num]);
+ if (!list[num]) {
+ DEBUG(0,("str_list_copy: Unable to allocate memory"));
+ str_list_free(&list);
+ return False;
+ }
+
+ num++;
+ }
+
+ *dest = list;
+ return True;
+}
+
+/**
+ * Return true if all the elements of the list match exactly.
+ **/
+BOOL str_list_compare(char **list1, char **list2)
+{
+ int num;
+
+ if (!list1 || !list2)
+ return (list1 == list2);
+
+ for (num = 0; list1[num]; num++) {
+ if (!list2[num])
+ return False;
+ if (!strcsequal(list1[num], list2[num]))
+ return False;
+ }
+ if (list2[num])
+ return False; /* if list2 has more elements than list1 fail */
+
+ return True;
+}
+
+void str_list_free(char ***list)
+{
+ char **tlist;
+
+ if (!list || !*list)
+ return;
+ tlist = *list;
+ for(; *tlist; tlist++)
+ SAFE_FREE(*tlist);
+ SAFE_FREE(*list);
+}
+
+/******************************************************************************
+ *****************************************************************************/
+
+int str_list_count( const char **list )
+{
+ int i = 0;
+
+ if ( ! list )
+ return 0;
+
+ /* count the number of list members */
+
+ for ( i=0; *list; i++, list++ );
+
+ return i;
+}
+
+/******************************************************************************
+ version of standard_sub_basic() for string lists; uses alloc_sub_basic()
+ for the work
+ *****************************************************************************/
+
+BOOL str_list_sub_basic( char **list, const char *smb_name )
+{
+ char *s, *tmpstr;
+
+ while ( *list ) {
+ s = *list;
+ tmpstr = alloc_sub_basic(smb_name, s);
+ if ( !tmpstr ) {
+ DEBUG(0,("str_list_sub_basic: alloc_sub_basic() return NULL!\n"));
+ return False;
+ }
+
+ SAFE_FREE(*list);
+ *list = tmpstr;
+
+ list++;
+ }
+
+ return True;
+}
+
+/******************************************************************************
+ substritute a specific pattern in a string list
+ *****************************************************************************/
+
+BOOL str_list_substitute(char **list, const char *pattern, const char *insert)
+{
+ char *p, *s, *t;
+ ssize_t ls, lp, li, ld, i, d;
+
+ if (!list)
+ return False;
+ if (!pattern)
+ return False;
+ if (!insert)
+ return False;
+
+ lp = (ssize_t)strlen(pattern);
+ li = (ssize_t)strlen(insert);
+ ld = li -lp;
+
+ while (*list) {
+ s = *list;
+ ls = (ssize_t)strlen(s);
+
+ while ((p = strstr_m(s, pattern))) {
+ t = *list;
+ d = p -t;
+ if (ld) {
+ t = (char *) SMB_MALLOC(ls +ld +1);
+ if (!t) {
+ DEBUG(0,("str_list_substitute: Unable to allocate memory"));
+ return False;
+ }
+ memcpy(t, *list, d);
+ memcpy(t +d +li, p +lp, ls -d -lp +1);
+ SAFE_FREE(*list);
+ *list = t;
+ ls += ld;
+ s = t +d +li;
+ }
+
+ for (i = 0; i < li; i++) {
+ switch (insert[i]) {
+ case '`':
+ case '"':
+ case '\'':
+ case ';':
+ case '$':
+ case '%':
+ case '\r':
+ case '\n':
+ t[d +i] = '_';
+ break;
+ default:
+ t[d +i] = insert[i];
+ }
+ }
+ }
+
+
+ list++;
+ }
+
+ return True;
+}
+
+
+#define IPSTR_LIST_SEP ","
+#define IPSTR_LIST_CHAR ','
+
+/**
+ * Add ip string representation to ipstr list. Used also
+ * as part of @function ipstr_list_make
+ *
+ * @param ipstr_list pointer to string containing ip list;
+ * MUST BE already allocated and IS reallocated if necessary
+ * @param ipstr_size pointer to current size of ipstr_list (might be changed
+ * as a result of reallocation)
+ * @param ip IP address which is to be added to list
+ * @return pointer to string appended with new ip and possibly
+ * reallocated to new length
+ **/
+
+char* ipstr_list_add(char** ipstr_list, const struct ip_service *service)
+{
+ char* new_ipstr = NULL;
+
+ /* arguments checking */
+ if (!ipstr_list || !service) return NULL;
+
+ /* attempt to convert ip to a string and append colon separator to it */
+ if (*ipstr_list) {
+ asprintf(&new_ipstr, "%s%s%s:%d", *ipstr_list, IPSTR_LIST_SEP,
+ inet_ntoa(service->ip), service->port);
+ SAFE_FREE(*ipstr_list);
+ } else {
+ asprintf(&new_ipstr, "%s:%d", inet_ntoa(service->ip), service->port);
+ }
+ *ipstr_list = new_ipstr;
+ return *ipstr_list;
+}
+
+
+/**
+ * Allocate and initialise an ipstr list using ip adresses
+ * passed as arguments.
+ *
+ * @param ipstr_list pointer to string meant to be allocated and set
+ * @param ip_list array of ip addresses to place in the list
+ * @param ip_count number of addresses stored in ip_list
+ * @return pointer to allocated ip string
+ **/
+
+char* ipstr_list_make(char** ipstr_list, const struct ip_service* ip_list, int ip_count)
+{
+ int i;
+
+ /* arguments checking */
+ if (!ip_list && !ipstr_list) return 0;
+
+ *ipstr_list = NULL;
+
+ /* process ip addresses given as arguments */
+ for (i = 0; i < ip_count; i++)
+ *ipstr_list = ipstr_list_add(ipstr_list, &ip_list[i]);
+
+ return (*ipstr_list);
+}
+
+
+/**
+ * Parse given ip string list into array of ip addresses
+ * (as ip_service structures)
+ * e.g. 192.168.1.100:389,192.168.1.78, ...
+ *
+ * @param ipstr ip string list to be parsed
+ * @param ip_list pointer to array of ip addresses which is
+ * allocated by this function and must be freed by caller
+ * @return number of succesfully parsed addresses
+ **/
+
+int ipstr_list_parse(const char* ipstr_list, struct ip_service **ip_list)
+{
+ fstring token_str;
+ size_t count;
+ int i;
+
+ if (!ipstr_list || !ip_list)
+ return 0;
+
+ count = count_chars(ipstr_list, IPSTR_LIST_CHAR) + 1;
+ if ( (*ip_list = SMB_MALLOC_ARRAY(struct ip_service, count)) == NULL ) {
+ DEBUG(0,("ipstr_list_parse: malloc failed for %lu entries\n", (unsigned long)count));
+ return 0;
+ }
+
+ for ( i=0;
+ next_token(&ipstr_list, token_str, IPSTR_LIST_SEP, FSTRING_LEN) && i<count;
+ i++ )
+ {
+ struct in_addr addr;
+ unsigned port = 0;
+ char *p = strchr(token_str, ':');
+
+ if (p) {
+ *p = 0;
+ port = atoi(p+1);
+ }
+
+ /* convert single token to ip address */
+ if ( (addr.s_addr = inet_addr(token_str)) == INADDR_NONE )
+ break;
+
+ (*ip_list)[i].ip = addr;
+ (*ip_list)[i].port = port;
+ }
+
+ return count;
+}
+
+
+/**
+ * Safely free ip string list
+ *
+ * @param ipstr_list ip string list to be freed
+ **/
+
+void ipstr_list_free(char* ipstr_list)
+{
+ SAFE_FREE(ipstr_list);
+}
+
+
+/**
+ Unescape a URL encoded string, in place.
+**/
+
+void rfc1738_unescape(char *buf)
+{
+ char *p=buf;
+
+ while (p && *p && (p=strchr_m(p,'%'))) {
+ int c1 = p[1];
+ int c2 = p[2];
+
+ if (c1 >= '0' && c1 <= '9')
+ c1 = c1 - '0';
+ else if (c1 >= 'A' && c1 <= 'F')
+ c1 = 10 + c1 - 'A';
+ else if (c1 >= 'a' && c1 <= 'f')
+ c1 = 10 + c1 - 'a';
+ else {p++; continue;}
+
+ if (c2 >= '0' && c2 <= '9')
+ c2 = c2 - '0';
+ else if (c2 >= 'A' && c2 <= 'F')
+ c2 = 10 + c2 - 'A';
+ else if (c2 >= 'a' && c2 <= 'f')
+ c2 = 10 + c2 - 'a';
+ else {p++; continue;}
+
+ *p = (c1<<4) | c2;
+
+ memmove(p+1, p+3, strlen(p+3)+1);
+ p++;
+ }
+}
+
+static const char *b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+/**
+ * Decode a base64 string into a DATA_BLOB - simple and slow algorithm
+ **/
+DATA_BLOB base64_decode_data_blob(const char *s)
+{
+ int bit_offset, byte_offset, idx, i, n;
+ DATA_BLOB decoded = data_blob(s, strlen(s)+1);
+ unsigned char *d = decoded.data;
+ char *p;
+
+ n=i=0;
+
+ while (*s && (p=strchr_m(b64,*s))) {
+ idx = (int)(p - b64);
+ byte_offset = (i*6)/8;
+ bit_offset = (i*6)%8;
+ d[byte_offset] &= ~((1<<(8-bit_offset))-1);
+ if (bit_offset < 3) {
+ d[byte_offset] |= (idx << (2-bit_offset));
+ n = byte_offset+1;
+ } else {
+ d[byte_offset] |= (idx >> (bit_offset-2));
+ d[byte_offset+1] = 0;
+ d[byte_offset+1] |= (idx << (8-(bit_offset-2))) & 0xFF;
+ n = byte_offset+2;
+ }
+ s++; i++;
+ }
+
+ if ((n > 0) && (*s == '=')) {
+ n -= 1;
+ }
+
+ /* fix up length */
+ decoded.length = n;
+ return decoded;
+}
+
+/**
+ * Decode a base64 string in-place - wrapper for the above
+ **/
+void base64_decode_inplace(char *s)
+{
+ DATA_BLOB decoded = base64_decode_data_blob(s);
+
+ if ( decoded.length != 0 ) {
+ memcpy(s, decoded.data, decoded.length);
+
+ /* null terminate */
+ s[decoded.length] = '\0';
+ } else {
+ *s = '\0';
+ }
+
+ data_blob_free(&decoded);
+}
+
+/**
+ * Encode a base64 string into a malloc()ed string caller to free.
+ *
+ *From SQUID: adopted from http://ftp.sunet.se/pub2/gnu/vm/base64-encode.c with adjustments
+ **/
+char * base64_encode_data_blob(DATA_BLOB data)
+{
+ int bits = 0;
+ int char_count = 0;
+ size_t out_cnt, len, output_len;
+ char *result;
+
+ if (!data.length || !data.data)
+ return NULL;
+
+ out_cnt = 0;
+ len = data.length;
+ output_len = data.length * 2;
+ result = SMB_MALLOC(output_len); /* get us plenty of space */
+
+ while (len-- && out_cnt < (data.length * 2) - 5) {
+ int c = (unsigned char) *(data.data++);
+ bits += c;
+ char_count++;
+ if (char_count == 3) {
+ result[out_cnt++] = b64[bits >> 18];
+ result[out_cnt++] = b64[(bits >> 12) & 0x3f];
+ result[out_cnt++] = b64[(bits >> 6) & 0x3f];
+ result[out_cnt++] = b64[bits & 0x3f];
+ bits = 0;
+ char_count = 0;
+ } else {
+ bits <<= 8;
+ }
+ }
+ if (char_count != 0) {
+ bits <<= 16 - (8 * char_count);
+ result[out_cnt++] = b64[bits >> 18];
+ result[out_cnt++] = b64[(bits >> 12) & 0x3f];
+ if (char_count == 1) {
+ result[out_cnt++] = '=';
+ result[out_cnt++] = '=';
+ } else {
+ result[out_cnt++] = b64[(bits >> 6) & 0x3f];
+ result[out_cnt++] = '=';
+ }
+ }
+ result[out_cnt] = '\0'; /* terminate */
+ return result;
+}
+
+/* read a SMB_BIG_UINT from a string */
+SMB_BIG_UINT STR_TO_SMB_BIG_UINT(const char *nptr, const char **entptr)
+{
+
+ SMB_BIG_UINT val = -1;
+ const char *p = nptr;
+
+ while (p && *p && isspace(*p))
+ p++;
+#ifdef LARGE_SMB_OFF_T
+ sscanf(p,"%llu",&val);
+#else /* LARGE_SMB_OFF_T */
+ sscanf(p,"%lu",&val);
+#endif /* LARGE_SMB_OFF_T */
+ if (entptr) {
+ while (p && *p && isdigit(*p))
+ p++;
+ *entptr = p;
+ }
+
+ return val;
+}
+
+void string_append(char **left, const char *right)
+{
+ int new_len = strlen(right) + 1;
+
+ if (*left == NULL) {
+ *left = SMB_MALLOC(new_len);
+ *left[0] = '\0';
+ } else {
+ new_len += strlen(*left);
+ *left = SMB_REALLOC(*left, new_len);
+ }
+
+ if (*left == NULL)
+ return;
+
+ safe_strcat(*left, right, new_len-1);
+}
+
+BOOL add_string_to_array(TALLOC_CTX *mem_ctx,
+ const char *str, const char ***strings,
+ int *num)
+{
+ char *dup_str = talloc_strdup(mem_ctx, str);
+
+ *strings = TALLOC_REALLOC_ARRAY(mem_ctx, *strings, const char *, (*num)+1);
+
+ if ((*strings == NULL) || (dup_str == NULL))
+ return False;
+
+ (*strings)[*num] = dup_str;
+ *num += 1;
+ return True;
+}
+
+/* Append an sprintf'ed string. Double buffer size on demand. Usable without
+ * error checking in between. The indiation that something weird happened is
+ * string==NULL */
+
+void sprintf_append(TALLOC_CTX *mem_ctx, char **string, ssize_t *len,
+ size_t *bufsize, const char *fmt, ...)
+{
+ va_list ap;
+ char *newstr;
+ int ret;
+ BOOL increased;
+
+ /* len<0 is an internal marker that something failed */
+ if (*len < 0)
+ goto error;
+
+ if (*string == NULL) {
+ if (*bufsize == 0)
+ *bufsize = 128;
+
+ if (mem_ctx != NULL)
+ *string = TALLOC_ARRAY(mem_ctx, char, *bufsize);
+ else
+ *string = SMB_MALLOC_ARRAY(char, *bufsize);
+
+ if (*string == NULL)
+ goto error;
+ }
+
+ va_start(ap, fmt);
+ ret = vasprintf(&newstr, fmt, ap);
+ va_end(ap);
+
+ if (ret < 0)
+ goto error;
+
+ increased = False;
+
+ while ((*len)+ret >= *bufsize) {
+ increased = True;
+ *bufsize *= 2;
+ if (*bufsize >= (1024*1024*256))
+ goto error;
+ }
+
+ if (increased) {
+ if (mem_ctx != NULL)
+ *string = TALLOC_REALLOC_ARRAY(mem_ctx, *string, char,
+ *bufsize);
+ else
+ *string = SMB_REALLOC_ARRAY(*string, char, *bufsize);
+
+ if (*string == NULL)
+ goto error;
+ }
+
+ StrnCpy((*string)+(*len), newstr, ret);
+ (*len) += ret;
+ free(newstr);
+ return;
+
+ error:
+ *len = -1;
+ *string = NULL;
+}
+
+/*
+ Returns the substring from src between the first occurrence of
+ the char "front" and the first occurence of the char "back".
+ Mallocs the return string which must be freed. Not for use
+ with wide character strings.
+*/
+char *sstring_sub(const char *src, char front, char back)
+{
+ char *temp1, *temp2, *temp3;
+ ptrdiff_t len;
+
+ temp1 = strchr(src, front);
+ if (temp1 == NULL) return NULL;
+ temp2 = strchr(src, back);
+ if (temp2 == NULL) return NULL;
+ len = temp2 - temp1;
+ if (len <= 0) return NULL;
+ temp3 = (char*)SMB_MALLOC(len);
+ if (temp3 == NULL) {
+ DEBUG(1,("Malloc failure in sstring_sub\n"));
+ return NULL;
+ }
+ memcpy(temp3, temp1+1, len-1);
+ temp3[len-1] = '\0';
+ return temp3;
+}
projects / samba / blobdiff