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gzip, gunzip: forbid empty suffix

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This matches the behavior of GNU gzip.
This commit is contained in:
Eric Biggers 2016-10-23 13:54:52 -07:00
parent ed923c45d4
commit e7152b4866
1 changed files with 4 additions and 0 deletions
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4
programs/gzip.c
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@ -491,6 +491,10 @@ tmain(int argc, tchar *argv[])
break;
case 'S':
options.suffix = toptarg;
if (options.suffix[0] == T('\0')) {
msg("invalid suffix");
return 1;
}
break;
case 'V':
show_version();