diff options
| -rw-r--r-- | parallel.c | 18 |
1 files changed, 16 insertions, 2 deletions
@@ -27,6 +27,7 @@ #include <sys/time.h> #include <time.h> #include <stdlib.h> +#include <errno.h> #include <sys/select.h> #include <sys/types.h> #include <sys/wait.h> @@ -91,6 +92,7 @@ int main(int argc, char **argv) int cidx = 0; int returncode = 0; int replace_cb = 0; + char *t; while ((opt = getopt(argc, argv, "+hij:l:")) != -1) { switch (opt) { @@ -101,10 +103,22 @@ int main(int argc, char **argv) replace_cb = 1; break; case 'j': - maxjobs = atoi(optarg); + errno = 0; + maxjobs = strtoul(optarg, &t, 0); + if (errno != 0 || (t-optarg) != strlen(optarg)) { + fprintf(stderr, "option '%s' is not a number\n", + optarg); + exit(2); + } break; case 'l': - maxload = atoi(optarg); + errno = 0; + maxload = strtoul(optarg, &t, 0); + if (errno != 0 || (t-optarg) != strlen(optarg)) { + fprintf(stderr, "option '%s' is not a number\n", + optarg); + exit(2); + } break; default: /* ’?’ */ usage(); |