/*
- * Copyright (C) 2012 ProFUSION embedded systems
+ * Copyright (C) 2012-2013 ProFUSION embedded systems
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include <assert.h>
-#include <errno.h>
#include <dirent.h>
-#include <fcntl.h>
#include <dlfcn.h>
+#include <errno.h>
+#include <fcntl.h>
#include <limits.h>
-#include <stdlib.h>
#include <stdarg.h>
-#include <string.h>
#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
+#include <stdlib.h>
+#include <string.h>
#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
#include "testsuite.h"
return fp;
}
-TS_EXPORT FILE *fopen(const char *path, const char *mode)
-{
- const char *p;
- char buf[PATH_MAX * 2];
- static FILE* (*_fopen)(const char *path, const char *mode);
-
- if (!get_rootpath(__func__))
- return NULL;
-
- _fopen = get_libc_func("fopen");
-
- p = trap_path(path, buf);
- if (p == NULL)
- return NULL;
-
- return (*_fopen)(p, mode);
+/* wrapper template for a function with one "const char* path" argument */
+#define WRAP_1ARG(rettype, failret, name) \
+TS_EXPORT rettype name(const char *path) \
+{ \
+ const char *p; \
+ char buf[PATH_MAX * 2]; \
+ static rettype (*_fn)(const char*); \
+ \
+ if (!get_rootpath(__func__)) \
+ return failret; \
+ _fn = get_libc_func(#name); \
+ p = trap_path(path, buf); \
+ if (p == NULL) \
+ return failret; \
+ return (*_fn)(p); \
}
-TS_EXPORT int open(const char *path, int flags, ...)
-{
- const char *p;
- char buf[PATH_MAX * 2];
- static int (*_open)(const char *path, int flags, ...);
-
- if (!get_rootpath(__func__))
- return -1;
-
- _open = get_libc_func("open");
- p = trap_path(path, buf);
- if (p == NULL)
- return -1;
-
- if (flags & O_CREAT) {
- mode_t mode;
- va_list ap;
-
- va_start(ap, flags);
- mode = va_arg(ap, mode_t);
- va_end(ap);
- return _open(p, flags, mode);
- }
-
- return _open(p, flags);
+/* wrapper template for a function with "const char* path" and another argument */
+#define WRAP_2ARGS(rettype, failret, name, arg2t) \
+TS_EXPORT rettype name(const char *path, arg2t arg2) \
+{ \
+ const char *p; \
+ char buf[PATH_MAX * 2]; \
+ static rettype (*_fn)(const char*, arg2t arg2); \
+ \
+ if (!get_rootpath(__func__)) \
+ return failret; \
+ _fn = get_libc_func(#name); \
+ p = trap_path(path, buf); \
+ if (p == NULL) \
+ return failret; \
+ return (*_fn)(p, arg2); \
}
-TS_EXPORT int mkdir(const char *path, mode_t mode)
-{
- const char *p;
- char buf[PATH_MAX * 2];
- static int (*_mkdir)(const char *path, mode_t mode);
-
- if (!get_rootpath(__func__))
- return -1;
-
- _mkdir = get_libc_func("mkdir");
- p = trap_path(path, buf);
- if (p == NULL)
- return -1;
-
- return _mkdir(p, mode);
+/* wrapper template for open family */
+#define WRAP_OPEN(suffix) \
+TS_EXPORT int open ## suffix (const char *path, int flags, ...) \
+{ \
+ const char *p; \
+ char buf[PATH_MAX * 2]; \
+ static int (*_fn)(const char *path, int flags, ...); \
+ \
+ if (!get_rootpath(__func__)) \
+ return -1; \
+ _fn = get_libc_func("open" #suffix); \
+ p = trap_path(path, buf); \
+ if (p == NULL) \
+ return -1; \
+ \
+ if (flags & O_CREAT) { \
+ mode_t mode; \
+ va_list ap; \
+ \
+ va_start(ap, flags); \
+ mode = va_arg(ap, mode_t); \
+ va_end(ap); \
+ return _fn(p, flags, mode); \
+ } \
+ \
+ return _fn(p, flags); \
}
-TS_EXPORT int stat(const char *path, struct stat *st)
-{
- const char *p;
- char buf[PATH_MAX * 2];
- static int (*_stat)(const char *path, struct stat *buf);
-
- if (!get_rootpath(__func__))
- return -1;
-
- _stat = get_libc_func("stat");
-
- p = trap_path(path, buf);
- if (p == NULL)
- return -1;
-
- return _stat(p, st);
+/* wrapper template for __xstat family */
+#define WRAP_VERSTAT(prefix, suffix) \
+TS_EXPORT int prefix ## stat ## suffix (int ver, \
+ const char *path, \
+ struct stat ## suffix *st) \
+{ \
+ const char *p; \
+ char buf[PATH_MAX * 2]; \
+ static int (*_fn)(int ver, const char *path, \
+ struct stat ## suffix *); \
+ _fn = get_libc_func(#prefix "stat" #suffix); \
+ \
+ if (!get_rootpath(__func__)) \
+ return -1; \
+ p = trap_path(path, buf); \
+ if (p == NULL) \
+ return -1; \
+ \
+ return _fn(ver, p, st); \
}
-#ifdef HAVE___XSTAT
-TS_EXPORT int __xstat(int ver, const char *path, struct stat *st)
-{
- const char *p;
- char buf[PATH_MAX * 2];
- static int (*_xstat)(int __ver, const char *__filename,
- struct stat *__stat_buf);
-
- if (!get_rootpath(__func__))
- return -1;
-
- _xstat = get_libc_func("__xstat");
-
- p = trap_path(path, buf);
- if (p == NULL)
- return -1;
-
- return _xstat(ver, p, st);
-}
+WRAP_1ARG(DIR*, NULL, opendir);
+
+WRAP_2ARGS(FILE*, NULL, fopen, const char*);
+WRAP_2ARGS(int, -1, mkdir, mode_t);
+WRAP_2ARGS(int, -1, access, int);
+WRAP_2ARGS(int, -1, stat, struct stat*);
+WRAP_2ARGS(int, -1, lstat, struct stat*);
+#ifndef _FILE_OFFSET_BITS
+WRAP_2ARGS(int, -1, stat64, struct stat64*);
+WRAP_2ARGS(int, -1, lstat64, struct stat64*);
+WRAP_OPEN(64);
#endif
-TS_EXPORT int access(const char *path, int mode)
-{
- const char *p;
- char buf[PATH_MAX * 2];
- static int (*_access)(const char *path, int mode);
-
- if (!get_rootpath(__func__))
- return -1;
-
- _access = get_libc_func("access");
-
- p = trap_path(path, buf);
- if (p == NULL)
- return -1;
+WRAP_OPEN();
- return _access(p, mode);
-}
-
-TS_EXPORT DIR *opendir(const char *path)
-{
- const char *p;
- char buf[PATH_MAX * 2];
- static DIR* (*_opendir)(const char *path);
-
- if (!get_rootpath(__func__))
- return NULL;
-
- _opendir = get_libc_func("opendir");
-
- p = trap_path(path, buf);
- if (p == NULL)
- return NULL;
-
- return (*_opendir)(p);
-}
+#ifdef HAVE___XSTAT
+WRAP_VERSTAT(__x,);
+WRAP_VERSTAT(__lx,);
+#ifndef _FILE_OFFSET_BITS
+WRAP_VERSTAT(__x,64);
+WRAP_VERSTAT(__lx,64);
+#endif
+#endif
projects / thirdparty / kmod.git / blobdiff