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-rw-r--r--source3/lib/util_str.c130
1 files changed, 41 insertions, 89 deletions
diff --git a/source3/lib/util_str.c b/source3/lib/util_str.c
index 68b06a6d90..f5a50b360e 100644
--- a/source3/lib/util_str.c
+++ b/source3/lib/util_str.c
@@ -1274,11 +1274,15 @@ char *realloc_string_sub(char *string,
/*
* Internal guts of talloc_string_sub and talloc_all_string_sub.
- * 'filter' differentiates between them.
+ * talloc version of string_sub2.
*/
-static char *talloc_string_sub_internal(TALLOC_CTX *mem_ctx, const char *src,
- const char *pattern, const char *insert, bool filter)
+char *talloc_string_sub2(TALLOC_CTX *mem_ctx, const char *src,
+ const char *pattern,
+ const char *insert,
+ bool remove_unsafe_characters,
+ bool replace_once,
+ bool allow_trailing_dollar)
{
char *p, *in;
char *s;
@@ -1291,7 +1295,7 @@ static char *talloc_string_sub_internal(TALLOC_CTX *mem_ctx, const char *src,
string = talloc_strdup(mem_ctx, src);
if (string == NULL) {
- DEBUG(0, ("talloc_string_sub_internal: "
+ DEBUG(0, ("talloc_string_sub2: "
"talloc_strdup failed\n"));
return NULL;
}
@@ -1300,7 +1304,7 @@ static char *talloc_string_sub_internal(TALLOC_CTX *mem_ctx, const char *src,
in = SMB_STRDUP(insert);
if (!in) {
- DEBUG(0, ("talloc_string_sub_internal: ENOMEM\n"));
+ DEBUG(0, ("talloc_string_sub2: ENOMEM\n"));
return NULL;
}
ls = (ssize_t)strlen(s);
@@ -1308,22 +1312,28 @@ static char *talloc_string_sub_internal(TALLOC_CTX *mem_ctx, const char *src,
li = (ssize_t)strlen(insert);
ld = li - lp;
- if (filter) {
- for (i=0;i<li;i++) {
- switch (in[i]) {
- case '`':
- case '"':
- case '\'':
- case ';':
- case '$':
- case '%':
- case '\r':
- case '\n':
+ for (i=0;i<li;i++) {
+ switch (in[i]) {
+ case '`':
+ case '"':
+ case '\'':
+ case ';':
+ case '$':
+ /* allow a trailing $
+ * (as in machine accounts) */
+ if (allow_trailing_dollar && (i == li - 1 )) {
+ break;
+ }
+ case '%':
+ case '\r':
+ case '\n':
+ if (remove_unsafe_characters) {
in[i] = '_';
- default:
- /* ok */
break;
- }
+ }
+ default:
+ /* ok */
+ break;
}
}
@@ -1346,6 +1356,10 @@ static char *talloc_string_sub_internal(TALLOC_CTX *mem_ctx, const char *src,
memcpy(p, in, li);
s = p + li;
ls += ld;
+
+ if (replace_once) {
+ break;
+ }
}
SAFE_FREE(in);
return string;
@@ -1353,10 +1367,13 @@ static char *talloc_string_sub_internal(TALLOC_CTX *mem_ctx, const char *src,
/* 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 *talloc_string_sub(TALLOC_CTX *mem_ctx,
+ const char *src,
+ const char *pattern,
+ const char *insert)
{
- return talloc_string_sub_internal(mem_ctx, src, pattern, insert, true);
+ return talloc_string_sub2(mem_ctx, src, pattern, insert,
+ true, false, false);
}
/**
@@ -1406,73 +1423,8 @@ char *talloc_all_string_sub(TALLOC_CTX *ctx,
const char *pattern,
const char *insert)
{
- return talloc_string_sub_internal(ctx, src, pattern, insert, false);
-}
-
-/**
- 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);
+ return talloc_string_sub2(ctx, src, pattern, insert,
+ false, false, false);
}
#if 0