diff options
| -rw-r--r-- | tload.c | 11 |
1 files changed, 5 insertions, 6 deletions
@@ -87,8 +87,7 @@ int main(int argc, char **argv) int lines, row, col = 0; int i, opt; double av[3]; - static double max_scale, scale_fact; - char *scale_arg = NULL; + static double max_scale = 0, scale_fact; long tmpdly; static const struct option longopts[] = { @@ -107,7 +106,9 @@ int main(int argc, char **argv) getopt_long(argc, argv, "s:d:Vh", longopts, NULL)) != -1) switch (opt) { case 's': - scale_arg = optarg; + max_scale = strtod_or_err(optarg, _("failed to parse argument")); + if (max_scale < 0) + errx(EXIT_FAILURE, _("scale cannot be negative")); break; case 'd': tmpdly = strtol_or_err(optarg, _("failed to parse argument")); @@ -133,9 +134,7 @@ int main(int argc, char **argv) setsize(0); - if (scale_arg) - max_scale = atof(scale_arg); - else + if (max_scale == 0) max_scale = nrows; scale_fact = max_scale; |