mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-23 03:10:05 +00:00
303 lines
6.3 KiB
C
303 lines
6.3 KiB
C
/* Test glob memory management.
|
|
for the filesystem access functions.
|
|
Copyright (C) 2001, 2002, 2004 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 <errno.h>
|
|
#include <error.h>
|
|
#include <dirent.h>
|
|
#include <glob.h>
|
|
#include <mcheck.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <sys/stat.h>
|
|
|
|
// #define DEBUG
|
|
#ifdef DEBUG
|
|
# define PRINTF(fmt, args...) \
|
|
do \
|
|
{ \
|
|
int save_errno = errno; \
|
|
printf (fmt, ##args); \
|
|
errno = save_errno; \
|
|
} while (0)
|
|
#else
|
|
# define PRINTF(fmt, args...)
|
|
#endif
|
|
|
|
|
|
static struct
|
|
{
|
|
const char *name;
|
|
int level;
|
|
int type;
|
|
mode_t mode;
|
|
} filesystem[] =
|
|
{
|
|
{ ".", 1, DT_DIR, 0755 },
|
|
{ "..", 1, DT_DIR, 0755 },
|
|
{ "dir", 1, DT_DIR, 0755 },
|
|
{ ".", 2, DT_DIR, 0755 },
|
|
{ "..", 2, DT_DIR, 0755 },
|
|
{ "readable", 2, DT_DIR, 0755 },
|
|
{ ".", 3, DT_DIR, 0755 },
|
|
{ "..", 3, DT_DIR, 0755 },
|
|
{ "a", 3, DT_REG, 0644 },
|
|
{ "unreadable", 2, DT_DIR, 0111 },
|
|
{ ".", 3, DT_DIR, 0111 },
|
|
{ "..", 3, DT_DIR, 0755 },
|
|
{ "a", 3, DT_REG, 0644 },
|
|
{ "zz-readable", 2, DT_DIR, 0755 },
|
|
{ ".", 3, DT_DIR, 0755 },
|
|
{ "..", 3, DT_DIR, 0755 },
|
|
{ "a", 3, DT_REG, 0644 }
|
|
};
|
|
#define nfiles (sizeof (filesystem) / sizeof (filesystem[0]))
|
|
|
|
|
|
typedef struct
|
|
{
|
|
int level;
|
|
int idx;
|
|
struct dirent d;
|
|
char room_for_dirent[NAME_MAX];
|
|
} my_DIR;
|
|
|
|
|
|
static long int
|
|
find_file (const char *s)
|
|
{
|
|
int level = 1;
|
|
long int idx = 0;
|
|
|
|
if (strcmp (s, ".") == 0)
|
|
return 0;
|
|
|
|
if (s[0] == '.' && s[1] == '/')
|
|
s += 2;
|
|
|
|
while (*s != '\0')
|
|
{
|
|
char *endp = strchrnul (s, '/');
|
|
|
|
PRINTF ("looking for %.*s, level %d\n", (int) (endp - s), s, level);
|
|
|
|
while (idx < nfiles && filesystem[idx].level >= level)
|
|
{
|
|
if (filesystem[idx].level == level
|
|
&& memcmp (s, filesystem[idx].name, endp - s) == 0
|
|
&& filesystem[idx].name[endp - s] == '\0')
|
|
break;
|
|
++idx;
|
|
}
|
|
|
|
if (idx == nfiles || filesystem[idx].level < level)
|
|
{
|
|
errno = ENOENT;
|
|
return -1;
|
|
}
|
|
|
|
if (*endp == '\0')
|
|
return idx + 1;
|
|
|
|
if (filesystem[idx].type != DT_DIR
|
|
&& (idx + 1 >= nfiles
|
|
|| filesystem[idx].level >= filesystem[idx + 1].level))
|
|
{
|
|
errno = ENOTDIR;
|
|
return -1;
|
|
}
|
|
|
|
++idx;
|
|
|
|
s = endp + 1;
|
|
++level;
|
|
}
|
|
|
|
errno = ENOENT;
|
|
return -1;
|
|
}
|
|
|
|
|
|
static void *
|
|
my_opendir (const char *s)
|
|
{
|
|
long int idx = find_file (s);
|
|
my_DIR *dir;
|
|
|
|
if (idx == -1)
|
|
{
|
|
PRINTF ("my_opendir(\"%s\") == NULL (%m)\n", s);
|
|
return NULL;
|
|
}
|
|
|
|
if ((filesystem[idx].mode & 0400) == 0)
|
|
{
|
|
errno = EACCES;
|
|
PRINTF ("my_opendir(\"%s\") == NULL (%m)\n", s);
|
|
return NULL;
|
|
}
|
|
|
|
dir = (my_DIR *) malloc (sizeof (my_DIR));
|
|
if (dir == NULL)
|
|
{
|
|
printf ("cannot allocate directory handle: %m\n");
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
dir->level = filesystem[idx].level;
|
|
dir->idx = idx;
|
|
|
|
PRINTF ("my_opendir(\"%s\") == { level: %d, idx: %ld }\n",
|
|
s, filesystem[idx].level, idx);
|
|
|
|
return dir;
|
|
}
|
|
|
|
|
|
static struct dirent *
|
|
my_readdir (void *gdir)
|
|
{
|
|
my_DIR *dir = gdir;
|
|
|
|
if (dir->idx == -1)
|
|
{
|
|
PRINTF ("my_readdir ({ level: %d, idx: %ld }) = NULL\n",
|
|
dir->level, (long int) dir->idx);
|
|
return NULL;
|
|
}
|
|
|
|
while (dir->idx < nfiles && filesystem[dir->idx].level > dir->level)
|
|
++dir->idx;
|
|
|
|
if (dir->idx == nfiles || filesystem[dir->idx].level < dir->level)
|
|
{
|
|
dir->idx = -1;
|
|
PRINTF ("my_readdir ({ level: %d, idx: %ld }) = NULL\n",
|
|
dir->level, (long int) dir->idx);
|
|
return NULL;
|
|
}
|
|
|
|
dir->d.d_ino = dir->idx;
|
|
|
|
#ifdef _DIRENT_HAVE_D_TYPE
|
|
dir->d.d_type = filesystem[dir->idx].type;
|
|
#endif
|
|
|
|
strcpy (dir->d.d_name, filesystem[dir->idx].name);
|
|
|
|
#ifdef _DIRENT_HAVE_D_TYPE
|
|
PRINTF ("my_readdir ({ level: %d, idx: %ld }) = { d_ino: %ld, d_type: %d, d_name: \"%s\" }\n",
|
|
dir->level, (long int) dir->idx, dir->d.d_ino, dir->d.d_type,
|
|
dir->d.d_name);
|
|
#else
|
|
PRINTF ("my_readdir ({ level: %d, idx: %ld }) = { d_ino: %ld, d_name: \"%s\" }\n",
|
|
dir->level, (long int) dir->idx, dir->d.d_ino,
|
|
dir->d.d_name);
|
|
#endif
|
|
|
|
++dir->idx;
|
|
|
|
return &dir->d;
|
|
}
|
|
|
|
|
|
static void
|
|
my_closedir (void *dir)
|
|
{
|
|
PRINTF ("my_closedir ()\n");
|
|
free (dir);
|
|
}
|
|
|
|
|
|
/* We use this function for lstat as well since we don't have any. */
|
|
static int
|
|
my_stat (const char *name, struct stat *st)
|
|
{
|
|
long int idx = find_file (name);
|
|
|
|
if (idx == -1)
|
|
{
|
|
PRINTF ("my_stat (\"%s\", ...) = -1 (%m)\n", name);
|
|
return -1;
|
|
}
|
|
|
|
memset (st, '\0', sizeof (*st));
|
|
|
|
if (filesystem[idx].type == DT_UNKNOWN)
|
|
st->st_mode = DTTOIF (idx + 1 < nfiles
|
|
&& filesystem[idx].level < filesystem[idx + 1].level
|
|
? DT_DIR : DT_REG) | filesystem[idx].mode;
|
|
else
|
|
st->st_mode = DTTOIF (filesystem[idx].type) | filesystem[idx].mode;
|
|
|
|
PRINTF ("my_stat (\"%s\", { st_mode: %o }) = 0\n", name, st->st_mode);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void
|
|
init_glob_altdirfuncs (glob_t *pglob)
|
|
{
|
|
pglob->gl_closedir = my_closedir;
|
|
pglob->gl_readdir = my_readdir;
|
|
pglob->gl_opendir = my_opendir;
|
|
pglob->gl_lstat = my_stat;
|
|
pglob->gl_stat = my_stat;
|
|
}
|
|
|
|
|
|
int
|
|
do_test (void)
|
|
{
|
|
mtrace ();
|
|
|
|
glob_t gl;
|
|
memset (&gl, 0, sizeof (gl));
|
|
init_glob_altdirfuncs (&gl);
|
|
|
|
if (glob ("dir/*able/*", GLOB_ERR | GLOB_ALTDIRFUNC, NULL, &gl)
|
|
!= GLOB_ABORTED)
|
|
{
|
|
puts ("glob did not fail with GLOB_ABORTED");
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
globfree (&gl);
|
|
|
|
memset (&gl, 0, sizeof (gl));
|
|
init_glob_altdirfuncs (&gl);
|
|
|
|
gl.gl_offs = 3;
|
|
if (glob ("dir2/*", GLOB_DOOFFS, NULL, &gl) != GLOB_NOMATCH)
|
|
{
|
|
puts ("glob did not fail with GLOB_NOMATCH");
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
globfree (&gl);
|
|
|
|
muntrace ();
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|