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| author | Keith M Wesolowski <wesolows@foobazco.org> | 2013-01-29 00:52:02 +0000 |
|---|---|---|
| committer | Keith M Wesolowski <wesolows@foobazco.org> | 2013-01-29 00:52:02 +0000 |
| commit | c5dc37e51421a61fc1ed28c2762607b0843e10eb (patch) | |
| tree | be0bbdfe08e0f92f41ad775d2ee6f951cbe0389b | |
| parent | 7ade4aeb90d841655b5f8accbab8e0c91a88ecc6 (diff) | |
| download | illumos-joyent-c5dc37e51421a61fc1ed28c2762607b0843e10eb.tar.gz | |
OS-1836 passwd command truncates usernames to 8 chars by default (overflow)
| -rw-r--r-- | usr/src/lib/libc/port/gen/getlogin.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/usr/src/lib/libc/port/gen/getlogin.c b/usr/src/lib/libc/port/gen/getlogin.c index db86ceef4c..e96d294fd0 100644 --- a/usr/src/lib/libc/port/gen/getlogin.c +++ b/usr/src/lib/libc/port/gen/getlogin.c @@ -77,7 +77,8 @@ generic_getlogin(char *answer, int namelen, boolean_t truncate) (void) close(uf); if (ubuf.ut_user[0] == '\0') return (-1); - if (strlen(ubuf.ut_user) >= namelen && !truncate) { + if (strnlen(ubuf.ut_user, sizeof (ubuf.ut_user)) >= namelen && + !truncate) { errno = ERANGE; return (-1); } |