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Diffstat (limited to 'REORG.TODO/pwd/tst-getpw.c')
| -rw-r--r-- | REORG.TODO/pwd/tst-getpw.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/REORG.TODO/pwd/tst-getpw.c b/REORG.TODO/pwd/tst-getpw.c new file mode 100644 index 0000000000..c90c4ed34b --- /dev/null +++ b/REORG.TODO/pwd/tst-getpw.c @@ -0,0 +1,114 @@ +/* Copyright (C) 1999-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <stdio.h> +#include <pwd.h> +#include <errno.h> +#include <stdbool.h> + +/* We want to test getpw by calling it with a uid that does + exist and one that doesn't exist. We track if we've met those + conditions and exit. We also track if we've failed due to lack + of memory. That constitutes all of the standard failure cases. */ +bool seen_hit; +bool seen_miss; +bool seen_oom; + +/* How many errors we've had while running the test. */ +int errors; + +static void +check (uid_t uid) +{ + int ret; + char buf[1024]; + + ret = getpw (uid, buf); + + /* Successfully read a password line. */ + if (ret == 0 && !seen_hit) + { + printf ("PASS: Read a password line given a uid.\n"); + seen_hit = true; + } + + /* Failed to read a password line. Why? */ + if (ret == -1) + { + /* No entry? Technically the errno could be any number + of values including ESRCH, EBADP or EPERM depending + on the quality of the nss module that implements the + underlying lookup. It should be 0 for getpw.*/ + if (errno == 0 && !seen_miss) + { + printf ("PASS: Found an invalid uid.\n"); + seen_miss = true; + return; + } + + /* Out of memory? */ + if (errno == ENOMEM && !seen_oom) + { + printf ("FAIL: Failed with ENOMEM.\n"); + seen_oom = true; + errors++; + } + + /* We don't expect any other values for errno. */ + if (errno != ENOMEM && errno != 0) + errors++; + } +} + +static int +do_test (void) +{ + int ret; + uid_t uid; + + /* Should return -1 and set errnot to EINVAL. */ + ret = getpw (0, NULL); + if (ret == -1 && errno == EINVAL) + { + printf ("PASS: NULL buffer returns -1 and sets errno to EINVAL.\n"); + } + else + { + printf ("FAIL: NULL buffer did not return -1 or set errno to EINVAL.\n"); + errors++; + } + + /* Look for one matching uid, one non-found uid and then stop. + Set an upper limit at the 16-bit UID mark; no need to go farther. */ + for (uid = 0; uid < ((uid_t) 65535); ++uid) + { + check (uid); + if (seen_miss && seen_hit) + break; + } + + if (!seen_hit) + printf ("FAIL: Did not read even one password line given a uid.\n"); + + if (!seen_miss) + printf ("FAIL: Did not find even one invalid uid.\n"); + + return errors; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |