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occtl: avoid crash on empty cmdline argument

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Nikos Mavrogiannopoulos
2015-02-26 20:59:03 +01:00
parent 056730e931
commit e64528c9f1
1 changed files with 1 additions and 1 deletions
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2
src/occtl.c
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@@ -121,7 +121,7 @@ unsigned need_help(const char *arg)
unsigned check_cmd_help(const char *line) unsigned check_cmd_help(const char *line)
{ {
unsigned int i; unsigned int i;
unsigned len = strlen(line); unsigned len = (line!=NULL)?strlen(line):0;
unsigned status = 0, tlen; unsigned status = 0, tlen;
while (len > 0 && (line[len - 1] == '?' || whitespace(line[len - 1]))) while (len > 0 && (line[len - 1] == '?' || whitespace(line[len - 1])))