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check for zero sized input

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git@daemon.de
2014-03-04 23:08:10 +01:00
parent 9d60f7524d
commit 1c068d441d
1 changed files with 10 additions and 1 deletions
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11
libpcp/z85.c
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@@ -183,8 +183,17 @@ size_t pcp_unpadfour(byte *src, size_t srclen) {
byte *pcp_z85_decode(char *z85block, size_t *dstlen) {
byte *bin = NULL;
size_t binlen, outlen;
size_t srclen;
srclen = strlen(z85block);
binlen = strlen(z85block) * 4 / 5;
if(srclen == 0) {
/* FIXME: check how this happens, pcpstream decoder call */
*dstlen = 0;
return NULL;
}
binlen = srclen * 4 / 5;
bin = ucmalloc(binlen);
if(zmq_z85_decode(bin, z85block) == NULL) {