mirror of
https://sourceware.org/git/binutils-gdb.git
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59cc050d89
src/gdb/testsuite/gdb.base/fileio.c: In function ‘test_write’:
src/gdb/testsuite/gdb.base/fileio.c:158:5: warning: ‘ret’ may be used uninitialized in this function [-Wmaybe-uninitialized]
printf ("write 1: ret = %d, errno = %d\n", ret, errno);
^
gdb/ChangeLog:
2017-05-18 Pedro Alves <palves@redhat.com>
* gdb.base/fileio.c (test_write, test_read, test_close)
(test_fstat): Don't print 'ret' in the fail path.
578 lines
14 KiB
C
578 lines
14 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/errno.h>
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#include <sys/types.h>
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#include <sys/fcntl.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <errno.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <time.h>
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/* TESTS :
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* - open(const char *pathname, int flags, mode_t mode);
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1) Attempt to create file that already exists - EEXIST
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2) Attempt to open a directory for writing - EISDIR
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3) Pathname does not exist - ENOENT
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4) Open for write but no write permission - EACCES
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read(int fd, void *buf, size_t count);
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1) Read using invalid file descriptor - EBADF
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write(int fd, const void *buf, size_t count);
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1) Write using invalid file descriptor - EBADF
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2) Attempt to write to read-only file - EBADF
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lseek(int fildes, off_t offset, int whence);
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1) Seeking on an invalid file descriptor - EBADF
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2) Invalid "whence" (3rd param) value - EINVAL
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close(int fd);
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1) Attempt to close an invalid file descriptor - EBADF
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stat(const char *file_name, struct stat *buf);
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1) Pathname is a null string - ENOENT
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2) Pathname does not exist - ENOENT
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fstat(int filedes, struct stat *buf);
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1) Attempt to stat using an invalid file descriptor - EBADF
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isatty (int desc);
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Not applicable. We will test that it returns 1 when expected and a case
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where it should return 0.
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rename(const char *oldpath, const char *newpath);
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1) newpath is an existing directory, but oldpath is not a directory. - EISDIR
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2) newpath is a non-empty directory. - ENOTEMPTY or EEXIST
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3) newpath is a subdirectory of old path. - EINVAL
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4) oldpath does not exist. - ENOENT
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unlink(const char *pathname);
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1) pathname does not have write access. - EACCES
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2) pathname does not exist. - ENOENT
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time(time_t *t);
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Not applicable.
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system (const char * string);
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1) See if shell available - returns 0
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2) See if shell available - returns !0
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3) Execute simple shell command - returns 0
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4) Invalid string/command. - returns 127. */
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static const char *strerrno (int err);
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/* Note that OUTDIR is defined by the test suite. */
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#define FILENAME "foo.fileio.test"
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#define RENAMED "bar.fileio.test"
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#define NONEXISTANT "nofoo.fileio.test"
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#define NOWRITE "nowrt.fileio.test"
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#define TESTDIR1 "dir1.fileio.test"
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#define TESTDIR2 "dir2.fileio.test"
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#define TESTSUBDIR "dir1.fileio.test/subdir.fileio.test"
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#define STRING "Hello World"
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static void stop (void) {}
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/* A NULL string. We pass this to stat below instead of a NULL
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literal to avoid -Wnonnull warnings. */
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const char *null_str;
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void
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test_open (void)
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{
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int ret;
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/* Test opening */
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errno = 0;
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ret = open (OUTDIR FILENAME, O_CREAT | O_TRUNC | O_RDWR, S_IWUSR | S_IRUSR);
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printf ("open 1: ret = %d, errno = %d %s\n", ret, errno,
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ret >= 0 ? "OK" : "");
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if (ret >= 0)
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close (ret);
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stop ();
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/* Creating an already existing file (created by fileio.exp) */
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errno = 0;
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ret = open (OUTDIR FILENAME, O_CREAT | O_EXCL | O_WRONLY, S_IWUSR | S_IRUSR);
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printf ("open 2: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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if (ret >= 0)
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close (ret);
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stop ();
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/* Open directory (for writing) */
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errno = 0;
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ret = open (".", O_WRONLY);
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printf ("open 3: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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if (ret >= 0)
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close (ret);
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stop ();
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/* Opening nonexistant file */
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errno = 0;
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ret = open (NONEXISTANT, O_RDONLY);
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printf ("open 4: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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if (ret >= 0)
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close (ret);
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stop ();
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/* Open for write but no write permission */
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errno = 0;
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ret = open (OUTDIR NOWRITE, O_CREAT | O_RDONLY, S_IRUSR);
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if (ret >= 0)
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{
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close (ret);
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stop ();
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errno = 0;
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ret = open (OUTDIR NOWRITE, O_WRONLY);
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printf ("open 5: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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if (ret >= 0)
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close (ret);
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}
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else
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{
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stop ();
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printf ("open 5: ret = %d, errno = %d\n", ret, errno);
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}
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stop ();
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}
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void
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test_write (void)
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{
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int fd, ret;
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/* Test writing */
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errno = 0;
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fd = open (OUTDIR FILENAME, O_WRONLY);
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if (fd >= 0)
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{
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errno = 0;
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ret = write (fd, STRING, strlen (STRING));
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printf ("write 1: ret = %d, errno = %d %s\n", ret, errno,
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ret == strlen (STRING) ? "OK" : "");
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close (fd);
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}
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else
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printf ("write 1: errno = %d\n", errno);
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stop ();
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/* Write using invalid file descriptor */
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errno = 0;
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ret = write (999, STRING, strlen (STRING));
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printf ("write 2: ret = %d, errno = %d, %s\n", ret, errno,
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strerrno (errno));
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stop ();
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/* Write to a read-only file */
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errno = 0;
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fd = open (OUTDIR FILENAME, O_RDONLY);
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if (fd >= 0)
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{
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errno = 0;
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ret = write (fd, STRING, strlen (STRING));
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printf ("write 3: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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close (fd);
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}
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else
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printf ("write 3: errno = %d\n", errno);
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stop ();
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}
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void
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test_read (void)
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{
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int fd, ret;
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char buf[16];
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/* Test reading */
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errno = 0;
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fd = open (OUTDIR FILENAME, O_RDONLY);
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if (fd >= 0)
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{
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memset (buf, 0, 16);
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errno = 0;
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ret = read (fd, buf, 16);
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buf[15] = '\0'; /* Don't trust anybody... */
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if (ret == strlen (STRING))
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printf ("read 1: %s %s\n", buf, !strcmp (buf, STRING) ? "OK" : "");
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else
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printf ("read 1: ret = %d, errno = %d\n", ret, errno);
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close (fd);
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}
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else
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printf ("read 1: errno = %d\n", errno);
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stop ();
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/* Read using invalid file descriptor */
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errno = 0;
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ret = read (999, buf, 16);
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printf ("read 2: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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stop ();
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}
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void
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test_lseek (void)
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{
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int fd;
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off_t ret = 0;
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/* Test seeking */
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errno = 0;
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fd = open (OUTDIR FILENAME, O_RDONLY);
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if (fd >= 0)
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{
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errno = 0;
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ret = lseek (fd, 0, SEEK_CUR);
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printf ("lseek 1: ret = %ld, errno = %d, %s\n", (long) ret, errno,
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ret == 0 ? "OK" : "");
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stop ();
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errno = 0;
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ret = lseek (fd, 0, SEEK_END);
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printf ("lseek 2: ret = %ld, errno = %d, %s\n", (long) ret, errno,
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ret == 11 ? "OK" : "");
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stop ();
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errno = 0;
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ret = lseek (fd, 3, SEEK_SET);
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printf ("lseek 3: ret = %ld, errno = %d, %s\n", (long) ret, errno,
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ret == 3 ? "OK" : "");
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close (fd);
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}
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else
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{
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printf ("lseek 1: ret = %ld, errno = %d %s\n", (long) ret, errno,
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strerrno (errno));
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stop ();
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printf ("lseek 2: ret = %ld, errno = %d %s\n", (long) ret, errno,
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strerrno (errno));
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stop ();
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printf ("lseek 3: ret = %ld, errno = %d %s\n", (long) ret, errno,
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strerrno (errno));
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}
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/* Seeking on an invalid file descriptor */
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stop ();
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}
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void
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test_close (void)
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{
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int fd, ret;
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/* Test close */
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errno = 0;
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fd = open (OUTDIR FILENAME, O_RDONLY);
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if (fd >= 0)
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{
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errno = 0;
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ret = close (fd);
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printf ("close 1: ret = %d, errno = %d, %s\n", ret, errno,
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ret == 0 ? "OK" : "");
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}
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else
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printf ("close 1: errno = %d\n", errno);
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stop ();
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/* Close an invalid file descriptor */
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errno = 0;
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ret = close (999);
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printf ("close 2: ret = %d, errno = %d, %s\n", ret, errno,
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strerrno (errno));
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stop ();
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}
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void
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test_stat (void)
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{
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int ret;
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struct stat st;
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/* Test stat */
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errno = 0;
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ret = stat (OUTDIR FILENAME, &st);
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if (!ret)
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printf ("stat 1: ret = %d, errno = %d %s\n", ret, errno,
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st.st_size == 11 ? "OK" : "");
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else
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printf ("stat 1: ret = %d, errno = %d\n", ret, errno);
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stop ();
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/* NULL pathname */
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errno = 0;
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ret = stat (null_str, &st);
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printf ("stat 2: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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stop ();
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/* Empty pathname */
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errno = 0;
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ret = stat ("", &st);
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printf ("stat 3: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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stop ();
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/* Nonexistant file */
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errno = 0;
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ret = stat (NONEXISTANT, &st);
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printf ("stat 4: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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stop ();
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}
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void
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test_fstat (void)
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{
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int fd, ret;
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struct stat st;
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/* Test fstat */
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errno = 0;
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fd = open (OUTDIR FILENAME, O_RDONLY);
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if (fd >= 0)
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{
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errno = 0;
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ret = fstat (fd, &st);
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if (!ret)
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printf ("fstat 1: ret = %d, errno = %d %s\n", ret, errno,
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st.st_size == 11 ? "OK" : "");
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else
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printf ("fstat 1: ret = %d, errno = %d\n", ret, errno);
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close (fd);
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}
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else
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printf ("fstat 1: errno = %d\n", errno);
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stop ();
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/* Fstat using invalid file descriptor */
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errno = 0;
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ret = fstat (999, &st);
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printf ("fstat 2: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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stop ();
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}
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void
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test_isatty (void)
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{
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int fd;
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/* Check std I/O */
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printf ("isatty 1: stdin %s\n", isatty (0) ? "yes OK" : "no");
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stop ();
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printf ("isatty 2: stdout %s\n", isatty (1) ? "yes OK" : "no");
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stop ();
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printf ("isatty 3: stderr %s\n", isatty (2) ? "yes OK" : "no");
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stop ();
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/* Check invalid fd */
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printf ("isatty 4: invalid %s\n", isatty (999) ? "yes" : "no OK");
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stop ();
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/* Check open file */
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fd = open (OUTDIR FILENAME, O_RDONLY);
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if (fd >= 0)
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{
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printf ("isatty 5: file %s\n", isatty (fd) ? "yes" : "no OK");
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close (fd);
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}
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else
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printf ("isatty 5: file couldn't open\n");
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stop ();
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}
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char sys[1512];
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void
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test_system (void)
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{
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/*
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* Requires test framework to switch on "set remote system-call-allowed 1"
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*/
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int ret;
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/* Test for shell ('set remote system-call-allowed' is disabled
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by default). */
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ret = system (NULL);
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printf ("system 1: ret = %d %s\n", ret, ret == 0 ? "OK" : "");
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stop ();
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/* Test for shell again (the testsuite will have enabled it now). */
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ret = system (NULL);
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printf ("system 2: ret = %d %s\n", ret, ret != 0 ? "OK" : "");
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stop ();
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/* This test prepares the directory for test_rename() */
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sprintf (sys, "mkdir -p %s/%s %s/%s", OUTDIR, TESTSUBDIR, OUTDIR, TESTDIR2);
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ret = system (sys);
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if (ret == 127)
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printf ("system 3: ret = %d /bin/sh unavailable???\n", ret);
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else
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printf ("system 3: ret = %d %s\n", ret, ret == 0 ? "OK" : "");
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stop ();
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/* Invalid command (just guessing ;-) ) */
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ret = system ("wrtzlpfrmpft");
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printf ("system 4: ret = %d %s\n", ret,
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WEXITSTATUS (ret) == 127 ? "OK" : "");
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stop ();
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}
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void
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test_rename (void)
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{
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int ret;
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struct stat st;
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/* Test rename */
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errno = 0;
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ret = rename (OUTDIR FILENAME, OUTDIR RENAMED);
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if (!ret)
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{
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errno = 0;
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ret = stat (FILENAME, &st);
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if (ret && errno == ENOENT)
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{
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errno = 0;
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ret = stat (OUTDIR RENAMED, &st);
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printf ("rename 1: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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errno = 0;
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}
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else
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printf ("rename 1: ret = %d, errno = %d\n", ret, errno);
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}
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else
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printf ("rename 1: ret = %d, errno = %d\n", ret, errno);
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stop ();
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/* newpath is existing directory, oldpath is not a directory */
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errno = 0;
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ret = rename (OUTDIR RENAMED, OUTDIR TESTDIR2);
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printf ("rename 2: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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stop ();
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/* newpath is a non-empty directory */
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errno = 0;
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ret = rename (OUTDIR TESTDIR2, OUTDIR TESTDIR1);
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printf ("rename 3: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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stop ();
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/* newpath is a subdirectory of old path */
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errno = 0;
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ret = rename (OUTDIR TESTDIR1, OUTDIR TESTSUBDIR);
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printf ("rename 4: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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stop ();
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/* oldpath does not exist */
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errno = 0;
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ret = rename (OUTDIR NONEXISTANT, OUTDIR FILENAME);
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printf ("rename 5: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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stop ();
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}
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char name[1256];
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void
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test_unlink (void)
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{
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int ret;
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/* Test unlink */
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errno = 0;
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ret = unlink (OUTDIR RENAMED);
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printf ("unlink 1: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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stop ();
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/* No write access */
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sprintf (name, "%s/%s/%s", OUTDIR, TESTDIR2, FILENAME);
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errno = 0;
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ret = open (name, O_CREAT | O_RDONLY, S_IRUSR | S_IWUSR);
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if (ret >= 0)
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{
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sprintf (sys, "chmod -w %s/%s", OUTDIR, TESTDIR2);
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ret = system (sys);
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if (!ret)
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{
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errno = 0;
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ret = unlink (name);
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printf ("unlink 2: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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}
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else
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printf ("unlink 2: ret = %d chmod failed, errno= %d\n", ret, errno);
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}
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else
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printf ("unlink 2: ret = %d, errno = %d\n", ret, errno);
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stop ();
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/* pathname doesn't exist */
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errno = 0;
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ret = unlink (OUTDIR NONEXISTANT);
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printf ("unlink 3: ret = %d, errno = %d %s\n", ret, errno,
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strerrno (errno));
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stop ();
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}
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void
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test_time (void)
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{
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time_t ret, t;
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|
|
|
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;
|
|
}
|