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trivial fix to make sure we have sufficient arguments before

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we mess with a possibly non-existant argv[1]
 -Erik
This commit is contained in:
Eric Andersen 2003-03-28 16:54:14 +00:00
parent a0f0f0cf76
commit b5b5ac3237
1 changed files with 3 additions and 4 deletions
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7
coreutils/tail.c
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@ -118,11 +118,10 @@ int tail_main(int argc, char **argv)
const char *fmt;
/* Allow legacy syntax of an initial numeric option without -n. */
if ((argv[1][0] == '+')
|| ((argv[1][0] == '-')
if (argc >=2 && ((argv[1][0] == '+') || ((argv[1][0] == '-')
/* && (isdigit)(argv[1][1]) */
&& (((unsigned int)(argv[1][1] - '0')) <= 9))
) {
&& (((unsigned int)(argv[1][1] - '0')) <= 9))))
{
optind = 2;
optarg = argv[1];
goto GET_COUNT;