diff options
Diffstat (limited to 'src/utils.c')
| -rw-r--r-- | src/utils.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/src/utils.c b/src/utils.c index 18917f5..20a2fa3 100644 --- a/src/utils.c +++ b/src/utils.c @@ -195,17 +195,24 @@ int nft_fprintf(FILE *fp, void *obj, uint32_t type, uint32_t flags, int ret; ret = snprintf_cb(buf, bufsiz, obj, type, flags); - if (ret > NFT_SNPRINTF_BUFSIZ) { - buf = calloc(1, ret); + if (ret < 0) + goto out; + + if (ret >= NFT_SNPRINTF_BUFSIZ) { + bufsiz = ret + 1; + + buf = malloc(bufsiz); if (buf == NULL) return -1; - bufsiz = ret; ret = snprintf_cb(buf, bufsiz, obj, type, flags); + if (ret < 0) + goto out; } ret = fprintf(fp, "%s", buf); +out: if (buf != _buf) xfree(buf); |