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authorRikard Falkeborn <rikard.falkeborn@gmail.com>2015-08-10 21:42:38 +0200
committerAllan McRae <allan@archlinux.org>2015-10-21 15:11:27 +1000
commitaa8a674b6b2c8474a1111b16806c27d4562b5d80 (patch)
treed4cb9d4e6da4c4d02974dd0c96ad16230241fea7 /src/util
parent19d373c9b95ff5c9ee6d5a4cdb097670f69068d4 (diff)
pacsort: don't overwrite memory if realloc fails
That makes it impossible to free it later. Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
Diffstat (limited to 'src/util')
-rw-r--r--src/util/pacsort.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/src/util/pacsort.c b/src/util/pacsort.c
index 003ec073..3337d976 100644
--- a/src/util/pacsort.c
+++ b/src/util/pacsort.c
@@ -104,10 +104,11 @@ static void buffer_free(struct buffer_t *buf)
static int buffer_grow(struct buffer_t *buffer)
{
size_t newsz = buffer->maxlen * 2.5;
- buffer->mem = realloc(buffer->mem, newsz * sizeof(char));
- if(!buffer->mem) {
+ char* new_mem = realloc(buffer->mem, newsz * sizeof(char));
+ if(!new_mem) {
return 1;
}
+ buffer->mem = new_mem;
buffer->maxlen = newsz;
return 0;
@@ -136,11 +137,12 @@ static struct list_t *list_new(size_t initial_size)
static int list_grow(struct list_t *list)
{
size_t newsz = list->maxcount * 2.5;
- list->list = realloc(list->list, newsz * sizeof(char *));
- if(!list->list) {
+ void **new_list = realloc(list->list, newsz * sizeof(char *));
+ if(!new_list) {
return 1;
}
+ list->list = new_list;
list->maxcount = newsz;
return 0;