watch: use strtod_or_err() to validate user input

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
This commit is contained in:
Sami Kerola
2011-12-18 16:07:44 +01:00
parent 208a043256
commit 5862f47b96
2 changed files with 7 additions and 11 deletions

15
watch.c
View File

@ -337,16 +337,11 @@ int main(int argc, char *argv[])
option_exec = 1;
break;
case 'n':
{
char *str;
interval = strtod(optarg, &str);
if (!*optarg || *str)
usage(stderr);
if (interval < 0.1)
interval = 0.1;
if (interval > ~0u / 1000000)
interval = ~0u / 1000000;
}
interval = strtod_or_err(optarg, _("failed to parse argument"));
if (interval < 0.1)
interval = 0.1;
if (interval > ~0u / 1000000)
interval = ~0u / 1000000;
break;
case 'p':
precise_timekeeping = 1;