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Check if username is a NULL pointer before dereferencing it.

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martin 1996-07-03 21:43:48 +00:00
parent 91664726c6
commit c42838f64b
1 changed files with 1 additions and 1 deletions
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2
usr.sbin/pwd_mkdb/pwd_mkdb.c
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@ -125,7 +125,7 @@ main(argc, argv)
argc -= optind;
argv += optind;
if (argc != 1 || *username == '+' || *username == '-')
if (argc != 1 || (username && (*username == '+' || *username == '-')))
usage();
/*