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lib: Make iscsi_realloc() update the freed pointer list

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This patch improves the stability of libiscsi by avoiding that
stale pointers are passed to free().

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
This commit is contained in:
Bart Van Assche
2015-04-20 09:55:57 +02:00
committed by Ronnie Sahlberg
parent e3e4d8730c
commit d8de6531f8
1 changed files with 9 additions and 0 deletions
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9
lib/init.c
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@@ -49,10 +49,19 @@ void* iscsi_zmalloc(struct iscsi_context *iscsi, size_t size) {
} }
void* iscsi_realloc(struct iscsi_context *iscsi, void* ptr, size_t size) { void* iscsi_realloc(struct iscsi_context *iscsi, void* ptr, size_t size) {
int i;
void * _ptr = realloc(ptr, size); void * _ptr = realloc(ptr, size);
if (_ptr != NULL) { if (_ptr != NULL) {
iscsi->reallocs++; iscsi->reallocs++;
} }
if (ptr != NULL) {
for (i = 0; i < iscsi->smalloc_free; i++) {
if (iscsi->smalloc_ptrs[i] == ptr) {
iscsi->smalloc_ptrs[i] = _ptr;
break;
}
}
}
return _ptr; return _ptr;
} }