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-rw-r--r--lib/memdebug.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/memdebug.c b/lib/memdebug.c
index aea6f324b..d08de6a2d 100644
--- a/lib/memdebug.c
+++ b/lib/memdebug.c
@@ -152,21 +152,24 @@ char *curl_dostrdup(const char *str, int line, const char *source)
return mem;
}
+/* We provide a realloc() that accepts a NULL as pointer, which then
+ performs a malloc(). In order to work with ares. */
void *curl_dorealloc(void *ptr, size_t wantedsize,
int line, const char *source)
{
- struct memdebug *mem;
+ struct memdebug *mem=NULL;
size_t size = sizeof(struct memdebug)+wantedsize;
if(countcheck("realloc", line, source))
return NULL;
- mem = (struct memdebug *)((char *)ptr - offsetof(struct memdebug, mem));
+ if(ptr)
+ mem = (struct memdebug *)((char *)ptr - offsetof(struct memdebug, mem));
mem=(struct memdebug *)(realloc)(mem, size);
if(logfile)
- fprintf(logfile, "MEM %s:%d realloc(%p, %d) = %p\n",
+ fprintf(logfile, "MEM %s:%d realloc(0x%x, %d) = %p\n",
source, line, ptr, wantedsize, mem?mem->mem:NULL);
if(mem) {