binutils-gdb/gdb/testsuite/gdb.base/fileio.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/errno.h>
#include <sys/types.h>
#include <sys/fcntl.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <errno.h>
#include <sys/wait.h>
#include <unistd.h>
/* TESTS :
* - open(const char *pathname, int flags, mode_t mode);
1) Attempt to create file that already exists - EEXIST
2) Attempt to open a directory for writing - EISDIR
3) Pathname does not exist - ENOENT
4) Open for write but no write permission - EACCES
read(int fd, void *buf, size_t count);
1) Read using invalid file descriptor - EBADF
write(int fd, const void *buf, size_t count);
1) Write using invalid file descriptor - EBADF
2) Attempt to write to read-only file - EBADF
lseek(int fildes, off_t offset, int whence);
1) Seeking on an invalid file descriptor - EBADF
2) Invalid "whence" (3rd param) value - EINVAL
close(int fd);
1) Attempt to close an invalid file descriptor - EBADF
stat(const char *file_name, struct stat *buf);
1) Pathname is a null string - ENOENT
2) Pathname does not exist - ENOENT
fstat(int filedes, struct stat *buf);
1) Attempt to stat using an invalid file descriptor - EBADF
isatty (int desc);
Not applicable. We will test that it returns 1 when expected and a case
where it should return 0.
rename(const char *oldpath, const char *newpath);
1) newpath is an existing directory, but oldpath is not a directory. - EISDIR
2) newpath is a non-empty directory. - ENOTEMPTY or EEXIST
3) newpath is a subdirectory of old path. - EINVAL
4) oldpath does not exist. - ENOENT
unlink(const char *pathname);
1) pathname does not have write access. - EACCES
2) pathname does not exist. - ENOENT
time(time_t *t);
Not applicable.
system (const char * string);
1) Invalid string/command. - returns 127. */
static const char *strerrno (int err);
#define FILENAME "foo.fileio.test"
#define RENAMED "bar.fileio.test"
#define NONEXISTANT "nofoo.fileio.test"
#define NOWRITE "nowrt.fileio.test"
#define TESTDIR1 "dir1.fileio.test"
#define TESTDIR2 "dir2.fileio.test"
#define TESTSUBDIR "dir1.fileio.test/subdir.fileio.test"
#define STRING "Hello World"
static void stop () {}
int
test_open ()
{
int ret;
/* Test opening */
errno = 0;
ret = open (FILENAME, O_CREAT | O_TRUNC | O_RDWR, S_IWUSR | S_IRUSR);
printf ("open 1: ret = %d, errno = %d %s\n", ret, errno,
ret >= 0 ? "OK" : "");
if (ret >= 0)
close (ret);
stop ();
/* Creating an already existing file (created by fileio.exp) */
errno = 0;
ret = open (FILENAME, O_CREAT | O_EXCL | O_WRONLY, S_IWUSR | S_IRUSR);
printf ("open 2: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
if (ret >= 0)
close (ret);
stop ();
/* Open directory (for writing) */
errno = 0;
ret = open (".", O_WRONLY);
printf ("open 3: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
if (ret >= 0)
close (ret);
stop ();
/* Opening nonexistant file */
errno = 0;
ret = open (NONEXISTANT, O_RDONLY);
printf ("open 4: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
if (ret >= 0)
close (ret);
stop ();
/* Open for write but no write permission */
errno = 0;
ret = open (NOWRITE, O_CREAT | O_RDONLY, S_IRUSR);
if (ret >= 0)
{
close (ret);
stop ();
errno = 0;
ret = open (NOWRITE, O_WRONLY);
printf ("open 5: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
if (ret >= 0)
close (ret);
}
else
{
stop ();
printf ("open 5: ret = %d, errno = %d\n", ret, errno);
}
stop ();
}
int
test_write ()
{
int fd, ret;
/* Test writing */
errno = 0;
fd = open (FILENAME, O_WRONLY);
if (fd >= 0)
{
errno = 0;
ret = write (fd, STRING, strlen (STRING));
printf ("write 1: ret = %d, errno = %d %s\n", ret, errno,
ret == strlen (STRING) ? "OK" : "");
close (fd);
}
else
printf ("write 1: ret = %d, errno = %d\n", ret, errno);
stop ();
/* Write using invalid file descriptor */
errno = 0;
ret = write (999, STRING, strlen (STRING));
printf ("write 2: ret = %d, errno = %d, %s\n", ret, errno,
strerrno (errno));
stop ();
/* Write to a read-only file */
errno = 0;
fd = open (FILENAME, O_RDONLY);
if (fd >= 0)
{
errno = 0;
ret = write (fd, STRING, strlen (STRING));
printf ("write 3: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
}
else
printf ("write 3: ret = %d, errno = %d\n", ret, errno);
stop ();
}
int
test_read ()
{
int fd, ret;
char buf[16];
/* Test reading */
errno = 0;
fd = open (FILENAME, O_RDONLY);
if (fd >= 0)
{
memset (buf, 0, 16);
errno = 0;
ret = read (fd, buf, 16);
buf[15] = '\0'; /* Don't trust anybody... */
if (ret == strlen (STRING))
printf ("read 1: %s %s\n", buf, !strcmp (buf, STRING) ? "OK" : "");
else
printf ("read 1: ret = %d, errno = %d\n", ret, errno);
close (fd);
}
else
printf ("read 1: ret = %d, errno = %d\n", ret, errno);
stop ();
/* Read using invalid file descriptor */
errno = 0;
ret = read (999, buf, 16);
printf ("read 2: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
stop ();
}
int
test_lseek ()
{
int fd;
off_t ret = 0;
/* Test seeking */
errno = 0;
fd = open (FILENAME, O_RDONLY);
if (fd >= 0)
{
errno = 0;
ret = lseek (fd, 0, SEEK_CUR);
printf ("lseek 1: ret = %ld, errno = %d, %s\n", (long) ret, errno,
ret == 0 ? "OK" : "");
stop ();
errno = 0;
ret = lseek (fd, 0, SEEK_END);
printf ("lseek 2: ret = %ld, errno = %d, %s\n", (long) ret, errno,
ret == 11 ? "OK" : "");
stop ();
errno = 0;
ret = lseek (fd, 3, SEEK_SET);
printf ("lseek 3: ret = %ld, errno = %d, %s\n", (long) ret, errno,
ret == 3 ? "OK" : "");
close (fd);
}
else
{
printf ("lseek 1: ret = %ld, errno = %d %s\n", (long) ret, errno,
strerrno (errno));
stop ();
printf ("lseek 2: ret = %ld, errno = %d %s\n", (long) ret, errno,
strerrno (errno));
stop ();
printf ("lseek 3: ret = %ld, errno = %d %s\n", (long) ret, errno,
strerrno (errno));
}
/* Seeking on an invalid file descriptor */
stop ();
}
int
test_close ()
{
int fd, ret;
/* Test close */
errno = 0;
fd = open (FILENAME, O_RDONLY);
if (fd >= 0)
{
errno = 0;
ret = close (fd);
printf ("close 1: ret = %d, errno = %d, %s\n", ret, errno,
ret == 0 ? "OK" : "");
}
else
printf ("close 1: ret = %d, errno = %d\n", ret, errno);
stop ();
/* Close an invalid file descriptor */
errno = 0;
ret = close (999);
printf ("close 2: ret = %d, errno = %d, %s\n", ret, errno,
strerrno (errno));
stop ();
}
int
test_stat ()
{
int ret;
struct stat st;
/* Test stat */
errno = 0;
ret = stat (FILENAME, &st);
if (!ret)
printf ("stat 1: ret = %d, errno = %d %s\n", ret, errno,
st.st_size == 11 ? "OK" : "");
else
printf ("stat 1: ret = %d, errno = %d\n", ret, errno);
stop ();
/* NULL pathname */
errno = 0;
ret = stat (NULL, &st);
printf ("stat 2: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
stop ();
/* Empty pathname */
errno = 0;
ret = stat ("", &st);
printf ("stat 3: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
stop ();
/* Nonexistant file */
errno = 0;
ret = stat (NONEXISTANT, &st);
printf ("stat 4: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
stop ();
}
int
test_fstat ()
{
int fd, ret;
struct stat st;
/* Test fstat */
errno = 0;
fd = open (FILENAME, O_RDONLY);
if (fd >= 0)
{
errno = 0;
ret = fstat (fd, &st);
if (!ret)
printf ("fstat 1: ret = %d, errno = %d %s\n", ret, errno,
st.st_size == 11 ? "OK" : "");
else
printf ("fstat 1: ret = %d, errno = %d\n", ret, errno);
close (fd);
}
else
printf ("fstat 1: ret = %d, errno = %d\n", ret, errno);
stop ();
/* Fstat using invalid file descriptor */
errno = 0;
ret = fstat (999, &st);
printf ("fstat 2: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
stop ();
}
int
test_isatty ()
{
int fd;
/* Check std I/O */
printf ("isatty 1: stdin %s\n", isatty (0) ? "yes OK" : "no");
stop ();
printf ("isatty 2: stdout %s\n", isatty (1) ? "yes OK" : "no");
stop ();
printf ("isatty 3: stderr %s\n", isatty (2) ? "yes OK" : "no");
stop ();
/* Check invalid fd */
printf ("isatty 4: invalid %s\n", isatty (999) ? "yes" : "no OK");
stop ();
/* Check open file */
fd = open (FILENAME, O_RDONLY);
if (fd >= 0)
{
printf ("isatty 5: file %s\n", isatty (fd) ? "yes" : "no OK");
close (fd);
}
else
printf ("isatty 5: file couldn't open\n");
stop ();
}
int
test_system ()
{
/*
* Requires test framework to switch on "set remote system-call-allowed 1"
*/
int ret;
char sys[512];
/* Test for shell */
ret = system (NULL);
printf ("system 1: ret = %d %s\n", ret, ret != 0 ? "OK" : "");
stop ();
/* This test prepares the directory for test_rename() */
sprintf (sys, "mkdir -p %s %s", TESTSUBDIR, TESTDIR2);
ret = system (sys);
if (ret == 127)
printf ("system 2: ret = %d /bin/sh unavailable???\n", ret);
else
printf ("system 2: ret = %d %s\n", ret, ret == 0 ? "OK" : "");
stop ();
/* Invalid command (just guessing ;-) ) */
ret = system ("wrtzlpfrmpft");
printf ("system 3: ret = %d %s\n", ret, WEXITSTATUS (ret) == 127 ? "OK" : "");
stop ();
}
int
test_rename ()
{
int ret;
struct stat st;
/* Test rename */
errno = 0;
ret = rename (FILENAME, RENAMED);
if (!ret)
{
errno = 0;
ret = stat (FILENAME, &st);
if (ret && errno == ENOENT)
{
errno = 0;
ret = stat (RENAMED, &st);
printf ("rename 1: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
errno = 0;
}
else
printf ("rename 1: ret = %d, errno = %d\n", ret, errno);
}
else
printf ("rename 1: ret = %d, errno = %d\n", ret, errno);
stop ();
/* newpath is existing directory, oldpath is not a directory */
errno = 0;
ret = rename (RENAMED, TESTDIR2);
printf ("rename 2: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
stop ();
/* newpath is a non-empty directory */
errno = 0;
ret = rename (TESTDIR2, TESTDIR1);
printf ("rename 3: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
stop ();
/* newpath is a subdirectory of old path */
errno = 0;
ret = rename (TESTDIR1, TESTSUBDIR);
printf ("rename 4: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
stop ();
/* oldpath does not exist */
errno = 0;
ret = rename (NONEXISTANT, FILENAME);
printf ("rename 5: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
stop ();
}
int
test_unlink ()
{
int ret;
char name[256];
char sys[512];
/* Test unlink */
errno = 0;
ret = unlink (RENAMED);
printf ("unlink 1: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
stop ();
/* No write access */
sprintf (name, "%s/%s", TESTDIR2, FILENAME);
errno = 0;
ret = open (name, O_CREAT | O_RDONLY, S_IRUSR | S_IWUSR);
if (ret >= 0)
{
sprintf (sys, "chmod -w %s", TESTDIR2);
ret = system (sys);
if (!ret)
{
errno = 0;
ret = unlink (name);
printf ("unlink 2: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
}
else
printf ("unlink 2: ret = %d chmod failed, errno= %d\n", ret, errno);
}
else
printf ("unlink 2: ret = %d, errno = %d\n", ret, errno);
stop ();
/* pathname doesn't exist */
errno = 0;
ret = unlink (NONEXISTANT);
printf ("unlink 3: ret = %d, errno = %d %s\n", ret, errno,
strerrno (errno));
stop ();
}
int
test_time ()
{
time_t ret, t;
errno = 0;
ret = time (&t);
printf ("time 1: ret = %ld, errno = %d, t = %ld %s\n", (long) ret, errno, (long) t, ret == t ? "OK" : "");
stop ();
errno = 0;
ret = time (NULL);
printf ("time 2: ret = %ld, errno = %d, t = %ld %s\n",
(long) ret, errno, (long) t, ret >= t && ret < t + 10 ? "OK" : "");
stop ();
}
static const char *
strerrno (int err)
{
switch (err)
{
case 0: return "OK";
#ifdef EACCES
case EACCES: return "EACCES";
#endif
#ifdef EBADF
case EBADF: return "EBADF";
#endif
#ifdef EEXIST
case EEXIST: return "EEXIST";
#endif
#ifdef EFAULT
case EFAULT: return "EFAULT";
#endif
#ifdef EINVAL
case EINVAL: return "EINVAL";
#endif
#ifdef EISDIR
case EISDIR: return "EISDIR";
#endif
#ifdef ENOENT
case ENOENT: return "ENOENT";
#endif
#ifdef ENOTEMPTY
case ENOTEMPTY: return "ENOTEMPTY";
#endif
#ifdef EBUSY
case EBUSY: return "EBUSY";
#endif
default: return "E??";
}
}
int
main ()
{
/* Don't change the order of the calls. They partly depend on each other */
test_open ();
test_write ();
test_read ();
test_lseek ();
test_close ();
test_stat ();
test_fstat ();
test_isatty ();
test_system ();
test_rename ();
test_unlink ();
test_time ();
return 0;
}