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Check explicit length in od(1)

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If you pass an empty string, the null-char will always match
with strchr()!
This commit is contained in:
FRIGN 2015-09-29 23:14:59 +02:00 committed by sin
parent d49bce7fc8
commit 0d6d1dc02f
1 changed files with 2 additions and 2 deletions
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4
od.c
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@ -108,13 +108,13 @@ main(int argc, char *argv[])
ARGBEGIN {
case 'A':
s = EARGF(usage());
if (strlen(s) > 1 || !strchr("doxn", s[0]))
if (strlen(s) != 1 || !strchr("doxn", s[0]))
usage();
radix = s[0];
break;
case 't':
s = EARGF(usage());
if (strlen(s) > 1 || !strchr("acdoux", s[0]))
if (strlen(s) != 1 || !strchr("acdoux", s[0]))
usage();
type = s[0];
break;