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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 17:47:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 17:47:29 +0000
commit4f5791ebd03eaec1c7da0865a383175b05102712 (patch)
tree8ce7b00f7a76baa386372422adebbe64510812d4 /source3/lib/substitute_generic.c
parentInitial commit. (diff)
downloadsamba-4f5791ebd03eaec1c7da0865a383175b05102712.tar.xz
samba-4f5791ebd03eaec1c7da0865a383175b05102712.zip
Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'source3/lib/substitute_generic.c')
-rw-r--r--source3/lib/substitute_generic.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/source3/lib/substitute_generic.c b/source3/lib/substitute_generic.c
new file mode 100644
index 0000000..0498cd0
--- /dev/null
+++ b/source3/lib/substitute_generic.c
@@ -0,0 +1,118 @@
+/*
+ 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 2006
+ Copyright (C) Jeremy Allison 1992-2007
+
+ 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"
+
+void fstring_sub(char *s,const char *pattern,const char *insert)
+{
+ string_sub(s, pattern, insert, sizeof(fstring));
+}
+
+/**
+ Similar to string_sub2, but it will accept only allocated strings
+ and may realloc them so pay attention at what you pass on no
+ pointers inside strings, no const may be passed
+ as string.
+**/
+
+char *realloc_string_sub2(char *string,
+ const char *pattern,
+ const char *insert,
+ bool remove_unsafe_characters,
+ bool allow_trailing_dollar)
+{
+ char *p, *in;
+ char *s;
+ ssize_t ls,lp,li,ld, i;
+
+ if (!insert || !pattern || !*pattern || !string || !*string)
+ return NULL;
+
+ s = string;
+
+ in = talloc_strdup(talloc_tos(), 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 '$':
+ /* allow a trailing $
+ * (as in machine accounts) */
+ if (allow_trailing_dollar && (i == li - 1 )) {
+ break;
+ }
+ FALL_THROUGH;
+ case '`':
+ case '"':
+ case '\'':
+ case ';':
+ case '%':
+ case '\r':
+ case '\n':
+ if ( remove_unsafe_characters ) {
+ in[i] = '_';
+ break;
+ }
+ FALL_THROUGH;
+ default:
+ /* ok */
+ break;
+ }
+ }
+
+ while ((p = strstr_m(s,pattern))) {
+ if (ld > 0) {
+ int offset = PTR_DIFF(s,string);
+ string = talloc_realloc(NULL, string, char, ls + ld + 1);
+ if (!string) {
+ DEBUG(0, ("realloc_string_sub: "
+ "out of memory!\n"));
+ talloc_free(in);
+ return NULL;
+ }
+ p = string + offset + (p - s);
+ }
+ if (li != lp) {
+ memmove(p+li,p+lp,strlen(p+lp)+1);
+ }
+ memcpy(p, in, li);
+ s = p + li;
+ ls += ld;
+ }
+ talloc_free(in);
+ return string;
+}
+
+char *realloc_string_sub(char *string,
+ const char *pattern,
+ const char *insert)
+{
+ return realloc_string_sub2(string, pattern, insert, true, false);
+}