diff options
author | Varsha Rao <rvarsha016@gmail.com> | 2017-09-20 21:53:09 +0530 |
---|---|---|
committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2017-09-27 14:04:00 +0200 |
commit | 72386012200a96f9bb721ab4ddb5a9325c68c5f7 (patch) | |
tree | d8ddea63dba57671d2edbf4a34850d5f9613e567 /src/gen.c | |
parent | 676ea569bbe5abf750d9ed516f35c017efbdce5f (diff) |
src: Buffer is null terminated.
In _snprintf() functions definition the buffer is null terminated.
Signed-off-by: Varsha Rao <rvarsha016@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src/gen.c')
-rw-r--r-- | src/gen.c | 11 |
1 files changed, 10 insertions, 1 deletions
@@ -168,6 +168,9 @@ static int nftnl_gen_cmd_snprintf(char *buf, size_t size, { int ret, remain = size, offset = 0; + if (size) + buf[0] = '\0'; + ret = nftnl_cmd_header_snprintf(buf + offset, remain, cmd, type, flags); SNPRINTF_BUFFER_SIZE(ret, remain, offset); @@ -188,7 +191,10 @@ static int nftnl_gen_cmd_snprintf(char *buf, size_t size, int nftnl_gen_snprintf(char *buf, size_t size, const struct nftnl_gen *gen, uint32_t type, uint32_t flags) -{; +{ + if (size) + buf[0] = '\0'; + return nftnl_gen_cmd_snprintf(buf, size, gen, nftnl_flag2cmd(flags), type, flags); } @@ -197,6 +203,9 @@ EXPORT_SYMBOL(nftnl_gen_snprintf); static int nftnl_gen_do_snprintf(char *buf, size_t size, const void *gen, uint32_t cmd, uint32_t type, uint32_t flags) { + if (size) + buf = '\0'; + return nftnl_gen_snprintf(buf, size, gen, type, flags); } |