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| author | Mark Stapp <mjs@voltanet.io> | 2021-03-01 15:41:30 -0500 |
|---|---|---|
| committer | Mark Stapp <mjs@voltanet.io> | 2021-03-01 15:41:30 -0500 |
| commit | 8e2c653ed30f672617ef97f4479aff24db855154 (patch) | |
| tree | f53a4d41bb799360edbd2bcd757146abd9ce35c4 /lib/srcdest_table.c | |
| parent | 001ab42b1916e7ad69b77a7defdfd5e728104688 (diff) | |
lib: protect printfrr extensions from NULL input
Protect the lib printfrr extension handlers from NULL inputs.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Diffstat (limited to 'lib/srcdest_table.c')
| -rw-r--r-- | lib/srcdest_table.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/srcdest_table.c b/lib/srcdest_table.c index 8ffa0e9709..ef82b7ac01 100644 --- a/lib/srcdest_table.c +++ b/lib/srcdest_table.c @@ -313,8 +313,13 @@ static ssize_t printfrr_rn(char *buf, size_t bsz, const char *fmt, const struct route_node *rn = ptr; const struct prefix *dst_p, *src_p; - srcdest_rnode_prefixes(rn, &dst_p, &src_p); - srcdest2str(dst_p, (const struct prefix_ipv6 *)src_p, buf, bsz); + if (rn) { + srcdest_rnode_prefixes(rn, &dst_p, &src_p); + srcdest2str(dst_p, (const struct prefix_ipv6 *)src_p, buf, bsz); + } else { + strlcpy(buf, "NULL", bsz); + } + return 2; } |