diff options
Diffstat (limited to 'sendmail/test/t_pathconf.c')
-rw-r--r-- | sendmail/test/t_pathconf.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/sendmail/test/t_pathconf.c b/sendmail/test/t_pathconf.c new file mode 100644 index 0000000..2baaaa6 --- /dev/null +++ b/sendmail/test/t_pathconf.c @@ -0,0 +1,84 @@ +/* + * Copyright (c) 1999 Sendmail, Inc. and its suppliers. + * All rights reserved. + * + * By using this file, you agree to the terms and conditions set + * forth in the LICENSE file which can be found at the top level of + * the sendmail distribution. + * + */ + +/* +** The following test program tries the pathconf(2) routine. It should +** be run in a non-NFS-mounted directory (e.g., /tmp) and on remote (NFS) +** mounted directories running both NFS-v2 and NFS-v3 from systems that +** both do and do not permit file giveaway. +*/ + +#include <sys/types.h> +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <unistd.h> +#ifdef EX_OK +# undef EX_OK /* unistd.h may have another use for this */ +#endif /* EX_OK */ +#include <sysexits.h> + +#ifndef lint +static char id[] = "@(#)$Id: t_pathconf.c,v 8.6 2001/09/23 03:35:41 ca Exp $"; +#endif /* ! lint */ + +int +main(argc, argv) + int argc; + char **argv; +{ + int fd; + int i; + char tbuf[100]; + extern int errno; + + if (geteuid() == 0) + { + printf("*** Run me as a non-root user! ***\n"); + exit(EX_USAGE); + } + + strcpy(tbuf, "TXXXXXX"); + fd = mkstemp(tbuf); + if (fd < 0) + { + printf("*** Could not create test file %s\n", tbuf); + exit(EX_CANTCREAT); + } + errno = 0; + i = pathconf(".", _PC_CHOWN_RESTRICTED); + printf("pathconf(.) returns %2d, errno = %d\n", i, errno); + errno = 0; + i = pathconf(tbuf, _PC_CHOWN_RESTRICTED); + printf("pathconf(%s) returns %2d, errno = %d\n", tbuf, i, errno); + errno = 0; + i = fpathconf(fd, _PC_CHOWN_RESTRICTED); + printf("fpathconf(%s) returns %2d, errno = %d\n", tbuf, i, errno); + if (errno == 0 && i >= 0) + { + /* so it claims that it doesn't work -- try anyhow */ + printf(" fpathconf claims that chown is safe "); + if (fchown(fd, 1, 1) >= 0) + printf("*** but fchown works anyhow! ***\n"); + else + printf("and fchown agrees\n"); + } + else + { + /* well, let's see what really happens */ + printf(" fpathconf claims that chown is not safe "); + if (fchown(fd, 1, 1) >= 0) + printf("as indeed it is not\n"); + else + printf("*** but in fact it is safe ***\n"); + } + (void) unlink(tbuf); + exit(EX_OK); +} |