diff options
Diffstat (limited to 'package/openwrt/trx.c')
| -rw-r--r-- | package/openwrt/trx.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/package/openwrt/trx.c b/package/openwrt/trx.c index d4ad60037..79a04026e 100644 --- a/package/openwrt/trx.c +++ b/package/openwrt/trx.c @@ -170,7 +170,12 @@ int main(int argc, char **argv) } break; case 'a': - n = atoi(optarg); + errno = 0; + n = strtoul(optarg, &e, 0); + if (errno || (e == optarg) || *e) { + fprintf(stderr, "illegal numeric string\n"); + usage(); + } if (cur_len & (n-1)) { n = n - (cur_len & (n-1)); memset(buf + cur_len, 0, n); @@ -178,7 +183,12 @@ int main(int argc, char **argv) } break; case 'b': - n = atoi(optarg); + errno = 0; + n = strtoul(optarg, &e, 0); + if (errno || (e == optarg) || *e) { + fprintf(stderr, "illegal numeric string\n"); + usage(); + } if (n < cur_len) { fprintf(stderr, "WARNING: current length exceeds -b %d offset\n",n); } else { |