--- /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
+ Copyright (C) James Peach 2005
+
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+
+/**
+ * @file
+ * @brief Substitute utilities.
+ **/
+
+/**
+ 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.
+
+ 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.
+**/
+
+_PUBLIC_ void string_sub(char *s, const char *pattern, const char *insert, size_t len)
+{
+ 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(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':
+ p[i] = '_';
+ break;
+ default:
+ p[i] = insert[i];
+ }
+ }
+ s = p + li;
+ ls += (li-lp);
+ }
+}
+
+/**
+ * Talloc'ed version of string_sub
+ */
+_PUBLIC_ char *string_sub_talloc(TALLOC_CTX *mem_ctx, const char *s,
+ const char *pattern, const char *insert)
+{
+ const char *p;
+ char *ret;
+ size_t len, alloc_len;
+
+ if (insert == NULL || pattern == NULL || !*pattern || s == NULL)
+ return NULL;
+
+ /* determine length needed */
+ len = strlen(s);
+
+ for (p = strstr(s, pattern); p != NULL;
+ p = strstr(p+strlen(pattern), pattern)) {
+ len += strlen(insert) - strlen(pattern);
+ }
+
+ alloc_len = MAX(len, strlen(s))+1;
+ ret = talloc_array(mem_ctx, char, alloc_len);
+ if (ret == NULL)
+ return NULL;
+ strncpy(ret, s, alloc_len);
+ string_sub(ret, pattern, insert, alloc_len);
+
+ ret = talloc_realloc(mem_ctx, ret, char, len+1);
+ if (ret == NULL)
+ return NULL;
+
+ SMB_ASSERT(ret[len] == '\0');
+
+ return ret;
+}
+
+/**
+ 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.
+**/
+
+_PUBLIC_ 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(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);
+ }
+}
return hex_buffer;
}
-/**
- 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.
-
- 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.
-**/
-
-_PUBLIC_ void string_sub(char *s, const char *pattern, const char *insert, size_t len)
-{
- 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(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':
- p[i] = '_';
- break;
- default:
- p[i] = insert[i];
- }
- }
- s = p + li;
- ls += (li-lp);
- }
-}
-
-/**
- * Talloc'ed version of string_sub
- */
-_PUBLIC_ char *string_sub_talloc(TALLOC_CTX *mem_ctx, const char *s,
- const char *pattern, const char *insert)
-{
- const char *p;
- char *ret;
- size_t len, alloc_len;
-
- if (insert == NULL || pattern == NULL || !*pattern || s == NULL)
- return NULL;
-
- /* determine length needed */
- len = strlen(s);
-
- for (p = strstr(s, pattern); p != NULL;
- p = strstr(p+strlen(pattern), pattern)) {
- len += strlen(insert) - strlen(pattern);
- }
-
- alloc_len = MAX(len, strlen(s))+1;
- ret = talloc_array(mem_ctx, char, alloc_len);
- if (ret == NULL)
- return NULL;
- strncpy(ret, s, alloc_len);
- string_sub(ret, pattern, insert, alloc_len);
-
- ret = talloc_realloc(mem_ctx, ret, char, len+1);
- if (ret == NULL)
- return NULL;
-
- SMB_ASSERT(ret[len] == '\0');
-
- return ret;
-}
-
-/**
- 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.
-**/
-
-_PUBLIC_ 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(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);
- }
-}
-
-
-
/**
Unescape a URL encoded string, in place.
**/
projects / thirdparty / samba.git / commitdiff
