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-rw-r--r--source4/lib/charset/charset.h1
-rw-r--r--source4/lib/charset/util_unistr.c17
-rw-r--r--source4/lib/ldb/common/attrib_handlers.c27
-rw-r--r--source4/lib/ldb/common/ldb_utf8.c12
-rw-r--r--source4/lib/ldb/include/ldb.h8
-rw-r--r--source4/lib/ldb/include/ldb_private.h2
-rw-r--r--source4/lib/ldb/tools/ldbtest.c2
-rw-r--r--source4/lib/ldb_wrap.h2
-rw-r--r--source4/lib/util/util_ldb.c4
-rw-r--r--source4/lib/util/util_ldb.h2
10 files changed, 48 insertions, 29 deletions
diff --git a/source4/lib/charset/charset.h b/source4/lib/charset/charset.h
index baa7df532b..c49745cd7f 100644
--- a/source4/lib/charset/charset.h
+++ b/source4/lib/charset/charset.h
@@ -97,6 +97,7 @@ size_t count_chars_w(const char *s, char c);
void strupper_m(char *s);
void strlower_m(char *s);
char *strupper_talloc(TALLOC_CTX *ctx, const char *src);
+char *strupper_talloc_n(TALLOC_CTX *ctx, const char *src, size_t n);
char *strlower_talloc(TALLOC_CTX *ctx, const char *src);
bool strhasupper(const char *string);
bool strhaslower(const char *string);
diff --git a/source4/lib/charset/util_unistr.c b/source4/lib/charset/util_unistr.c
index 19a4f3236c..09ec7b0471 100644
--- a/source4/lib/charset/util_unistr.c
+++ b/source4/lib/charset/util_unistr.c
@@ -518,8 +518,9 @@ _PUBLIC_ char *strlower_talloc(TALLOC_CTX *ctx, const char *src)
/**
Convert a string to UPPER case, allocated with talloc
+ source length limited to n bytes
**/
-_PUBLIC_ char *strupper_talloc(TALLOC_CTX *ctx, const char *src)
+_PUBLIC_ char *strupper_talloc_n(TALLOC_CTX *ctx, const char *src, size_t n)
{
size_t size=0;
char *dest;
@@ -531,12 +532,12 @@ _PUBLIC_ char *strupper_talloc(TALLOC_CTX *ctx, const char *src)
/* this takes advantage of the fact that upper/lower can't
change the length of a character by more than 1 byte */
- dest = talloc_array(ctx, char, 2*(strlen(src))+1);
+ dest = talloc_array(ctx, char, 2*(n+1));
if (dest == NULL) {
return NULL;
}
- while (*src) {
+ while (*src && n--) {
size_t c_size;
codepoint_t c = next_codepoint(iconv_convenience, src, &c_size);
src += c_size;
@@ -562,6 +563,16 @@ _PUBLIC_ char *strupper_talloc(TALLOC_CTX *ctx, const char *src)
}
/**
+ Convert a string to UPPER case, allocated with talloc
+**/
+_PUBLIC_ char *strupper_talloc(TALLOC_CTX *ctx, const char *src)
+{
+ return strupper_talloc_n(ctx, src, src?strlen(src):0);
+}
+
+
+
+/**
Convert a string to lower case.
**/
_PUBLIC_ void strlower_m(char *s)
diff --git a/source4/lib/ldb/common/attrib_handlers.c b/source4/lib/ldb/common/attrib_handlers.c
index 8ed2763d4d..fb57e2dadc 100644
--- a/source4/lib/ldb/common/attrib_handlers.c
+++ b/source4/lib/ldb/common/attrib_handlers.c
@@ -55,11 +55,12 @@ int ldb_handler_fold(struct ldb_context *ldb, void *mem_ctx,
{
char *s, *t;
int l;
+
if (!in || !out || !(in->data)) {
return -1;
}
- out->data = (uint8_t *)ldb_casefold(ldb, mem_ctx, (const char *)(in->data));
+ out->data = (uint8_t *)ldb_casefold(ldb, mem_ctx, (const char *)(in->data), in->length);
if (out->data == NULL) {
ldb_debug(ldb, LDB_DEBUG_ERROR, "ldb_handler_fold: unable to casefold string [%s]", in->data);
return -1;
@@ -153,13 +154,14 @@ int ldb_comparison_fold(struct ldb_context *ldb, void *mem_ctx,
const struct ldb_val *v1, const struct ldb_val *v2)
{
const char *s1=(const char *)v1->data, *s2=(const char *)v2->data;
+ size_t n1 = v1->length, n2 = v2->length;
const char *u1, *u2;
char *b1, *b2;
int ret;
- while (*s1 == ' ') s1++;
- while (*s2 == ' ') s2++;
+ while (*s1 == ' ' && n1) { s1++; n1--; };
+ while (*s2 == ' ' && n2) { s2++; n2--; };
/* TODO: make utf8 safe, possibly with helper function from application */
- while (*s1 && *s2) {
+ while (*s1 && *s2 && n1 && n2) {
/* the first 127 (0x7F) chars are ascii and utf8 guarantes they
* never appear in multibyte sequences */
if (((unsigned char)s1[0]) & 0x80) goto utf8str;
@@ -167,10 +169,11 @@ int ldb_comparison_fold(struct ldb_context *ldb, void *mem_ctx,
if (toupper((unsigned char)*s1) != toupper((unsigned char)*s2))
break;
if (*s1 == ' ') {
- while (s1[0] == s1[1]) s1++;
- while (s2[0] == s2[1]) s2++;
+ while (s1[0] == s1[1] && n1) { s1++; n1--; }
+ while (s2[0] == s2[1] && n2) { s2++; n2--; }
}
s1++; s2++;
+ n1--; n2--;
}
if (! (*s1 && *s2)) {
/* check for trailing spaces only if one of the pointers
@@ -178,15 +181,18 @@ int ldb_comparison_fold(struct ldb_context *ldb, void *mem_ctx,
* can mistakenly match.
* ex. "domain users" <-> "domainUpdates"
*/
- while (*s1 == ' ') s1++;
- while (*s2 == ' ') s2++;
+ while (*s1 == ' ') { s1++; n1--; }
+ while (*s2 == ' ') { s2++; n2--; }
+ }
+ if (n1 != n2) {
+ return n1 - n2;
}
return (int)(toupper(*s1)) - (int)(toupper(*s2));
utf8str:
/* no need to recheck from the start, just from the first utf8 char found */
- b1 = ldb_casefold(ldb, mem_ctx, s1);
- b2 = ldb_casefold(ldb, mem_ctx, s2);
+ b1 = ldb_casefold(ldb, mem_ctx, s1, n1);
+ b2 = ldb_casefold(ldb, mem_ctx, s2, n2);
if (b1 && b2) {
/* Both strings converted correctly */
@@ -221,6 +227,7 @@ utf8str:
return ret;
}
+
/*
canonicalise a attribute in DN format
*/
diff --git a/source4/lib/ldb/common/ldb_utf8.c b/source4/lib/ldb/common/ldb_utf8.c
index b7b4a60122..69ee2b6964 100644
--- a/source4/lib/ldb/common/ldb_utf8.c
+++ b/source4/lib/ldb/common/ldb_utf8.c
@@ -40,8 +40,8 @@
function to handle utf8 caseless comparisons
*/
void ldb_set_utf8_fns(struct ldb_context *ldb,
- void *context,
- char *(*casefold)(void *, void *, const char *))
+ void *context,
+ char *(*casefold)(void *, void *, const char *, size_t))
{
if (context)
ldb->utf8_fns.context = context;
@@ -53,10 +53,10 @@ void ldb_set_utf8_fns(struct ldb_context *ldb,
a simple case folding function
NOTE: does not handle UTF8
*/
-char *ldb_casefold_default(void *context, void *mem_ctx, const char *s)
+char *ldb_casefold_default(void *context, void *mem_ctx, const char *s, size_t n)
{
int i;
- char *ret = talloc_strdup(mem_ctx, s);
+ char *ret = talloc_strndup(mem_ctx, s, n);
if (!s) {
errno = ENOMEM;
return NULL;
@@ -72,9 +72,9 @@ void ldb_set_utf8_default(struct ldb_context *ldb)
ldb_set_utf8_fns(ldb, NULL, ldb_casefold_default);
}
-char *ldb_casefold(struct ldb_context *ldb, void *mem_ctx, const char *s)
+char *ldb_casefold(struct ldb_context *ldb, void *mem_ctx, const char *s, size_t n)
{
- return ldb->utf8_fns.casefold(ldb->utf8_fns.context, mem_ctx, s);
+ return ldb->utf8_fns.casefold(ldb->utf8_fns.context, mem_ctx, s, n);
}
/*
diff --git a/source4/lib/ldb/include/ldb.h b/source4/lib/ldb/include/ldb.h
index 5dbf99e5bf..937029f52c 100644
--- a/source4/lib/ldb/include/ldb.h
+++ b/source4/lib/ldb/include/ldb.h
@@ -203,7 +203,7 @@ struct ldb_debug_ops {
*/
struct ldb_utf8_fns {
void *context;
- char *(*casefold)(void *context, TALLOC_CTX *mem_ctx, const char *s);
+ char *(*casefold)(void *context, TALLOC_CTX *mem_ctx, const char *s, size_t n);
};
/**
@@ -1216,7 +1216,7 @@ void ldb_set_utf8_default(struct ldb_context *ldb);
\note The default function is not yet UTF8 aware. Provide your own
set of functions through ldb_set_utf8_fns()
*/
-char *ldb_casefold(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, const char *s);
+char *ldb_casefold(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, const char *s, size_t n);
/**
Check the attribute name is valid according to rfc2251
@@ -1603,8 +1603,8 @@ int ldb_set_debug(struct ldb_context *ldb,
this allows the user to set custom utf8 function for error reporting
*/
void ldb_set_utf8_fns(struct ldb_context *ldb,
- void *context,
- char *(*casefold)(void *, void *, const char *));
+ void *context,
+ char *(*casefold)(void *, void *, const char *, size_t n));
/**
this sets up debug to print messages on stderr
diff --git a/source4/lib/ldb/include/ldb_private.h b/source4/lib/ldb/include/ldb_private.h
index 62a6e35999..e1026ab781 100644
--- a/source4/lib/ldb/include/ldb_private.h
+++ b/source4/lib/ldb/include/ldb_private.h
@@ -235,7 +235,7 @@ int save_controls(struct ldb_control *exclude, struct ldb_request *req, struct l
int check_critical_controls(struct ldb_control **controls);
/* The following definitions come from lib/ldb/common/ldb_utf8.c */
-char *ldb_casefold_default(void *context, void *mem_ctx, const char *s);
+char *ldb_casefold_default(void *context, void *mem_ctx, const char *s, size_t n);
void ldb_msg_remove_element(struct ldb_message *msg, struct ldb_message_element *el);
diff --git a/source4/lib/ldb/tools/ldbtest.c b/source4/lib/ldb/tools/ldbtest.c
index 6d141478ad..169ff02da1 100644
--- a/source4/lib/ldb/tools/ldbtest.c
+++ b/source4/lib/ldb/tools/ldbtest.c
@@ -93,7 +93,7 @@ static void add_records(struct ldb_context *ldb,
el[2].name = talloc_strdup(tmp_ctx, "uid");
el[2].num_values = 1;
el[2].values = vals[2];
- vals[2][0].data = (uint8_t *)ldb_casefold(ldb, tmp_ctx, name);
+ vals[2][0].data = (uint8_t *)ldb_casefold(ldb, tmp_ctx, name, strlen(name));
vals[2][0].length = strlen((char *)vals[2][0].data);
el[3].flags = 0;
diff --git a/source4/lib/ldb_wrap.h b/source4/lib/ldb_wrap.h
index e626b6ef8a..f2982302ab 100644
--- a/source4/lib/ldb_wrap.h
+++ b/source4/lib/ldb_wrap.h
@@ -29,7 +29,7 @@ struct cli_credentials;
struct loadparm_context;
struct event_context;
-char *wrap_casefold(void *context, void *mem_ctx, const char *s);
+char *wrap_casefold(void *context, void *mem_ctx, const char *s, size_t n);
struct ldb_context *ldb_wrap_connect(TALLOC_CTX *mem_ctx,
struct event_context *ev,
diff --git a/source4/lib/util/util_ldb.c b/source4/lib/util/util_ldb.c
index 0a7433696e..fab729c036 100644
--- a/source4/lib/util/util_ldb.c
+++ b/source4/lib/util/util_ldb.c
@@ -125,9 +125,9 @@ int gendb_add_ldif(struct ldb_context *ldb, const char *ldif_string)
return ret;
}
-char *wrap_casefold(void *context, void *mem_ctx, const char *s)
+char *wrap_casefold(void *context, void *mem_ctx, const char *s, size_t n)
{
- return strupper_talloc(mem_ctx, s);
+ return strupper_talloc_n(mem_ctx, s, n);
}
diff --git a/source4/lib/util/util_ldb.h b/source4/lib/util/util_ldb.h
index 030ba7ebee..43f98ae1a9 100644
--- a/source4/lib/util/util_ldb.h
+++ b/source4/lib/util/util_ldb.h
@@ -22,6 +22,6 @@ int gendb_search_dn(struct ldb_context *ldb,
struct ldb_message ***res,
const char * const *attrs);
int gendb_add_ldif(struct ldb_context *ldb, const char *ldif_string);
-char *wrap_casefold(void *context, void *mem_ctx, const char *s);
+char *wrap_casefold(void *context, void *mem_ctx, const char *s, size_t n);
#endif /* __LIB_UTIL_UTIL_LDB_H__ */
generated by cgit (git 2.34.1) at 2024-07-11 14:05:03 +0000