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authorSimo Sorce <idra@samba.org>2002-07-09 23:59:46 +0000
committerSimo Sorce <idra@samba.org>2002-07-09 23:59:46 +0000
commitfe23e902c643a4f12ac73cfc1e95b32dbac83248 (patch)
tree166071ce875bd62d0377301207cb9c85c9df2d63 /source3/lib
parent51eeaa494cf88b3f2438406cd8f716091069134f (diff)
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some support functions to ease the next commit.
(This used to be commit 4be1c882be56ae0fe18bb134a1513e0e6f6965b0)
Diffstat (limited to 'source3/lib')
-rw-r--r--source3/lib/util_str.c102
1 files changed, 96 insertions, 6 deletions
diff --git a/source3/lib/util_str.c b/source3/lib/util_str.c
index 9b4282c6e0..4c8d5d8bf7 100644
--- a/source3/lib/util_str.c
+++ b/source3/lib/util_str.c
@@ -654,24 +654,21 @@ 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_sub(char *s,const char *pattern,const char *insert, size_t len)
+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 || !s)
+ if (!insert || !pattern || !*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;
-
+
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",
@@ -713,6 +710,71 @@ 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 must 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 = 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(s,pattern))) {
+ if (ld > 0) {
+ char *t = Realloc(string, ls + ld + 1);
+ if (!t) {
+ DEBUG(0, ("realloc_string_sub: out of memory!\n"));
+ SAFE_FREE(in);
+ return NULL;
+ }
+ string = t;
+ s = t + (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!
@@ -928,6 +990,20 @@ void strlower_m(char *s)
}
/*******************************************************************
+ duplicate convert a string to lower case
+********************************************************************/
+char *strdup_lower(char *s)
+{
+ char *t = strdup(s);
+ if (t == NULL) {
+ DEBUG(0, ("strdup_lower: Out of memory!\n"));
+ return NULL;
+ }
+ strlower_m(t);
+ return t;
+}
+
+/*******************************************************************
convert a string to upper case
********************************************************************/
void strupper_m(char *s)
@@ -947,6 +1023,20 @@ void strupper_m(char *s)
unix_strupper(s,strlen(s)+1,s,strlen(s)+1);
}
+/*******************************************************************
+ convert a string to upper case
+********************************************************************/
+char *strdup_upper(char *s)
+{
+ char *t = strdup(s);
+ if (t == NULL) {
+ DEBUG(0, ("strdup_upper: Out of memory!\n"));
+ return NULL;
+ }
+ strupper_m(t);
+ return t;
+}
+
/*
return a RFC2254 binary string representation of a buffer
used in LDAP filters