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1 /*
2  * Copyright (c) 2010-2015 Linux Test Project
3  * Copyright (c) 2011-2015 Cyril Hrubis <chrubis@suse.cz>
4  *
5  * This program is free software: you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation, either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
17  */
18 
19 #ifndef TST_SAFE_MACROS_H__
20 #define TST_SAFE_MACROS_H__
21 
22 #include <sys/mman.h>
23 #include <sys/types.h>
24 #include <sys/time.h>
25 #include <sys/resource.h>
26 #include <sys/stat.h>
27 #include <fcntl.h>
28 #include <libgen.h>
29 #include <signal.h>
30 #include <stdarg.h>
31 #include <unistd.h>
32 #include <dirent.h>
33 
34 #include "safe_macros_fn.h"
35 
36 #define SAFE_BASENAME(path) \
37 	safe_basename(__FILE__, __LINE__, NULL, (path))
38 
39 #define SAFE_CHDIR(path) \
40 	safe_chdir(__FILE__, __LINE__, NULL, (path))
41 
42 #define SAFE_CLOSE(fd) do { \
43 		safe_close(__FILE__, __LINE__, NULL, (fd)); \
44 		fd = -1; \
45 	} while (0)
46 
47 #define SAFE_CREAT(pathname, mode) \
48 	safe_creat(__FILE__, __LINE__, NULL, (pathname), (mode))
49 
50 #define SAFE_DIRNAME(path) \
51 	safe_dirname(__FILE__, __LINE__, NULL, (path))
52 
safe_dup(const char * file,const int lineno,int oldfd)53 static inline int safe_dup(const char *file, const int lineno,
54 			   int oldfd)
55 {
56 	int rval;
57 
58 	rval = dup(oldfd);
59 	if (rval == -1) {
60 		tst_brk_(file, lineno, TBROK | TERRNO,
61 			 "dup(%i) failed", oldfd);
62 	}
63 
64 	return rval;
65 }
66 #define SAFE_DUP(oldfd) \
67 	safe_dup(__FILE__, __LINE__, (oldfd))
68 
69 #define	SAFE_GETCWD(buf, size) \
70 	safe_getcwd(__FILE__, __LINE__, NULL, (buf), (size))
71 
72 #define SAFE_GETPWNAM(name) \
73 	safe_getpwnam(__FILE__, __LINE__, NULL, (name))
74 
75 #define SAFE_GETRUSAGE(who, usage) \
76 	safe_getrusage(__FILE__, __LINE__, NULL, (who), (usage))
77 
78 #define SAFE_MALLOC(size) \
79 	safe_malloc(__FILE__, __LINE__, NULL, (size))
80 
81 #define SAFE_MKDIR(pathname, mode) \
82 	safe_mkdir(__FILE__, __LINE__, NULL, (pathname), (mode))
83 
84 #define SAFE_RMDIR(pathname) \
85 	safe_rmdir(__FILE__, __LINE__, NULL, (pathname))
86 
87 #define SAFE_MUNMAP(addr, length) \
88 	safe_munmap(__FILE__, __LINE__, NULL, (addr), (length))
89 
90 #define SAFE_OPEN(pathname, oflags, ...) \
91 	safe_open(__FILE__, __LINE__, NULL, (pathname), (oflags), \
92 	    ##__VA_ARGS__)
93 
94 #define SAFE_PIPE(fildes) \
95 	safe_pipe(__FILE__, __LINE__, NULL, (fildes))
96 
97 #define SAFE_READ(len_strict, fildes, buf, nbyte) \
98 	safe_read(__FILE__, __LINE__, NULL, (len_strict), (fildes), (buf), (nbyte))
99 
100 #define SAFE_SETEGID(egid) \
101 	safe_setegid(__FILE__, __LINE__, NULL, (egid))
102 
103 #define SAFE_SETEUID(euid) \
104 	safe_seteuid(__FILE__, __LINE__, NULL, (euid))
105 
106 #define SAFE_SETGID(gid) \
107 	safe_setgid(__FILE__, __LINE__, NULL, (gid))
108 
109 #define SAFE_SETUID(uid) \
110 	safe_setuid(__FILE__, __LINE__, NULL, (uid))
111 
112 #define SAFE_GETRESUID(ruid, euid, suid) \
113 	safe_getresuid(__FILE__, __LINE__, NULL, (ruid), (euid), (suid))
114 
115 #define SAFE_GETRESGID(rgid, egid, sgid) \
116 	safe_getresgid(__FILE__, __LINE__, NULL, (rgid), (egid), (sgid))
117 
118 int safe_setpgid(const char *file, const int lineno, pid_t pid, pid_t pgid);
119 
120 #define SAFE_SETPGID(pid, pgid) \
121 	safe_setpgid(__FILE__, __LINE__, (pid), (pgid));
122 
123 pid_t safe_getpgid(const char *file, const int lineno, pid_t pid);
124 
125 #define SAFE_GETPGID(pid) \
126 	safe_getpgid(__FILE__, __LINE__, (pid))
127 
128 #define SAFE_UNLINK(pathname) \
129 	safe_unlink(__FILE__, __LINE__, NULL, (pathname))
130 
131 #define SAFE_LINK(oldpath, newpath) \
132         safe_link(__FILE__, __LINE__, NULL, (oldpath), (newpath))
133 
134 #define SAFE_LINKAT(olddirfd, oldpath, newdirfd, newpath, flags) \
135 	safe_linkat(__FILE__, __LINE__, NULL, (olddirfd), (oldpath), \
136 		    (newdirfd), (newpath), (flags))
137 
138 #define SAFE_READLINK(path, buf, bufsize) \
139 	safe_readlink(__FILE__, __LINE__, NULL, (path), (buf), (bufsize))
140 
141 #define SAFE_SYMLINK(oldpath, newpath) \
142         safe_symlink(__FILE__, __LINE__, NULL, (oldpath), (newpath))
143 
144 #define SAFE_WRITE(len_strict, fildes, buf, nbyte) \
145 	safe_write(__FILE__, __LINE__, NULL, (len_strict), (fildes), (buf), (nbyte))
146 
147 #define SAFE_STRTOL(str, min, max) \
148 	safe_strtol(__FILE__, __LINE__, NULL, (str), (min), (max))
149 
150 #define SAFE_STRTOUL(str, min, max) \
151 	safe_strtoul(__FILE__, __LINE__, NULL, (str), (min), (max))
152 
153 #define SAFE_SYSCONF(name) \
154 	safe_sysconf(__FILE__, __LINE__, NULL, name)
155 
156 #define SAFE_CHMOD(path, mode) \
157 	safe_chmod(__FILE__, __LINE__, NULL, (path), (mode))
158 
159 #define SAFE_FCHMOD(fd, mode) \
160 	safe_fchmod(__FILE__, __LINE__, NULL, (fd), (mode))
161 
162 #define SAFE_CHOWN(path, owner, group) \
163 	safe_chown(__FILE__, __LINE__, NULL, (path), (owner), (group))
164 
165 #define SAFE_FCHOWN(fd, owner, group) \
166 	safe_fchown(__FILE__, __LINE__, NULL, (fd), (owner), (group))
167 
168 #define SAFE_WAIT(status) \
169         safe_wait(__FILE__, __LINE__, NULL, (status))
170 
171 #define SAFE_WAITPID(pid, status, opts) \
172         safe_waitpid(__FILE__, __LINE__, NULL, (pid), (status), (opts))
173 
174 #define SAFE_KILL(pid, sig) \
175 	safe_kill(__FILE__, __LINE__, NULL, (pid), (sig))
176 
177 #define SAFE_MEMALIGN(alignment, size) \
178 	safe_memalign(__FILE__, __LINE__, NULL, (alignment), (size))
179 
180 #define SAFE_MKFIFO(pathname, mode) \
181 	safe_mkfifo(__FILE__, __LINE__, NULL, (pathname), (mode))
182 
183 #define SAFE_RENAME(oldpath, newpath) \
184 	safe_rename(__FILE__, __LINE__, NULL, (oldpath), (newpath))
185 
186 #define SAFE_MOUNT(source, target, filesystemtype, \
187 		   mountflags, data) \
188 	safe_mount(__FILE__, __LINE__, NULL, (source), (target), \
189 		   (filesystemtype), (mountflags), (data))
190 
191 #define SAFE_UMOUNT(target) \
192 	safe_umount(__FILE__, __LINE__, NULL, (target))
193 
194 #define SAFE_OPENDIR(name) \
195 	safe_opendir(__FILE__, __LINE__, NULL, (name))
196 
197 #define SAFE_CLOSEDIR(dirp) \
198 	safe_closedir(__FILE__, __LINE__, NULL, (dirp))
199 
200 #define SAFE_READDIR(dirp) \
201 	safe_readdir(__FILE__, __LINE__, NULL, (dirp))
202 
203 #define SAFE_IOCTL(fd, request, ...)                         \
204 	({int ret = ioctl(fd, request, ##__VA_ARGS__);       \
205 	  ret < 0 ?                                          \
206 	   tst_brk(TBROK | TERRNO,                           \
207 	            "ioctl(%i,%s,...) failed", fd, #request) \
208 	 : ret;})
209 
210 #define SAFE_FCNTL(fd, cmd, ...)                            \
211 	({int ret = fcntl(fd, cmd, ##__VA_ARGS__);          \
212 	  ret == -1 ?                                       \
213 	   tst_brk(TBROK | TERRNO,                          \
214 	            "fcntl(%i,%s,...) failed", fd, #cmd), 0 \
215 	 : ret;})
216 
217 /*
218  * following functions are inline because the behaviour may depend on
219  * -D_FILE_OFFSET_BITS=64 -DOFF_T=off64_t compile flags
220  */
221 
safe_mmap(const char * file,const int lineno,void * addr,size_t length,int prot,int flags,int fd,off_t offset)222 static inline void *safe_mmap(const char *file, const int lineno,
223                               void *addr, size_t length,
224                               int prot, int flags, int fd, off_t offset)
225 {
226 	void *rval;
227 
228 	rval = mmap(addr, length, prot, flags, fd, offset);
229 	if (rval == MAP_FAILED) {
230 		tst_brk_(file, lineno, TBROK | TERRNO,
231 			"mmap(%p,%zu,%d,%d,%d,%ld) failed",
232 			addr, length, prot, flags, fd, (long) offset);
233 	}
234 
235 	return rval;
236 }
237 #define SAFE_MMAP(addr, length, prot, flags, fd, offset) \
238 	safe_mmap(__FILE__, __LINE__, (addr), (length), (prot), \
239 	(flags), (fd), (offset))
240 
safe_ftruncate(const char * file,const int lineno,int fd,off_t length)241 static inline int safe_ftruncate(const char *file, const int lineno,
242                                  int fd, off_t length)
243 {
244 	int rval;
245 
246 	rval = ftruncate(fd, length);
247 	if (rval == -1) {
248 		tst_brk_(file, lineno, TBROK | TERRNO,
249 			 "ftruncate(%d,%ld) failed",
250 			 fd, (long)length);
251 	}
252 
253 	return rval;
254 }
255 #define SAFE_FTRUNCATE(fd, length) \
256 	safe_ftruncate(__FILE__, __LINE__, (fd), (length))
257 
safe_truncate(const char * file,const int lineno,const char * path,off_t length)258 static inline int safe_truncate(const char *file, const int lineno,
259                                 const char *path, off_t length)
260 {
261 	int rval;
262 
263 	rval = truncate(path, length);
264 	if (rval == -1) {
265 		tst_brk_(file, lineno, TBROK | TERRNO,
266 			 "truncate(%s,%ld) failed",
267 			 path, (long)length);
268 	}
269 
270 	return rval;
271 }
272 #define SAFE_TRUNCATE(path, length) \
273 	safe_truncate(__FILE__, __LINE__, (path), (length))
274 
safe_stat(const char * file,const int lineno,const char * path,struct stat * buf)275 static inline int safe_stat(const char *file, const int lineno,
276                             const char *path, struct stat *buf)
277 {
278 	int rval;
279 
280 	rval = stat(path, buf);
281 
282 	if (rval == -1) {
283 		tst_brk_(file, lineno, TBROK | TERRNO,
284 			 "stat(%s,%p) failed", path, buf);
285 	}
286 
287 	return rval;
288 }
289 #define SAFE_STAT(path, buf) \
290 	safe_stat(__FILE__, __LINE__, (path), (buf))
291 
safe_fstat(const char * file,const int lineno,int fd,struct stat * buf)292 static inline int safe_fstat(const char *file, const int lineno,
293                              int fd, struct stat *buf)
294 {
295 	int rval;
296 
297 	rval = fstat(fd, buf);
298 
299 	if (rval == -1) {
300 		tst_brk_(file, lineno, TBROK | TERRNO,
301 			"fstat(%d,%p) failed", fd, buf);
302 	}
303 
304 	return rval;
305 }
306 #define SAFE_FSTAT(fd, buf) \
307 	safe_fstat(__FILE__, __LINE__, (fd), (buf))
308 
safe_lstat(const char * file,const int lineno,const char * path,struct stat * buf)309 static inline int safe_lstat(const char *file, const int lineno,
310 	const char *path, struct stat *buf)
311 {
312 	int rval;
313 
314 	rval = lstat(path, buf);
315 
316 	if (rval == -1) {
317 		tst_brk_(file, lineno, TBROK | TERRNO,
318 			"lstat(%s,%p) failed", path, buf);
319 	}
320 
321 	return rval;
322 }
323 #define SAFE_LSTAT(path, buf) \
324 	safe_lstat(__FILE__, __LINE__, (path), (buf))
325 
safe_lseek(const char * file,const int lineno,int fd,off_t offset,int whence)326 static inline off_t safe_lseek(const char *file, const int lineno,
327                                int fd, off_t offset, int whence)
328 {
329 	off_t rval;
330 
331 	rval = lseek(fd, offset, whence);
332 
333 	if (rval == (off_t) -1) {
334 		tst_brk_(file, lineno, TBROK | TERRNO,
335 			"lseek(%d,%ld,%d) failed",
336 			fd, (long)offset, whence);
337 	}
338 
339 	return rval;
340 }
341 #define SAFE_LSEEK(fd, offset, whence) \
342 	safe_lseek(__FILE__, __LINE__, (fd), (offset), (whence))
343 
safe_getrlimit(const char * file,const int lineno,int resource,struct rlimit * rlim)344 static inline int safe_getrlimit(const char *file, const int lineno,
345                                  int resource, struct rlimit *rlim)
346 {
347 	int rval;
348 
349 	rval = getrlimit(resource, rlim);
350 
351 	if (rval == -1) {
352 		tst_brk_(file, lineno, TBROK | TERRNO,
353 			"getrlimit(%d,%p) failed",
354 			resource, rlim);
355 	}
356 
357 	return rval;
358 }
359 #define SAFE_GETRLIMIT(resource, rlim) \
360 	safe_getrlimit(__FILE__, __LINE__, (resource), (rlim))
361 
safe_setrlimit(const char * file,const int lineno,int resource,const struct rlimit * rlim)362 static inline int safe_setrlimit(const char *file, const int lineno,
363                                  int resource, const struct rlimit *rlim)
364 {
365 	int rval;
366 
367 	rval = setrlimit(resource, rlim);
368 
369 	if (rval == -1) {
370 		tst_brk_(file, lineno, TBROK | TERRNO,
371 			 "setrlimit(%d,%p) failed",
372 			 resource, rlim);
373 	}
374 
375 	return rval;
376 }
377 #define SAFE_SETRLIMIT(resource, rlim) \
378 	safe_setrlimit(__FILE__, __LINE__, (resource), (rlim))
379 
380 typedef void (*sighandler_t)(int);
safe_signal(const char * file,const int lineno,int signum,sighandler_t handler)381 static inline sighandler_t safe_signal(const char *file, const int lineno,
382 				       int signum, sighandler_t handler)
383 {
384 	sighandler_t rval;
385 
386 	rval = signal(signum, handler);
387 
388 	if (rval == SIG_ERR) {
389 		tst_brk_(file, lineno, TBROK | TERRNO,
390 			"signal(%d,%p) failed",
391 			signum, handler);
392 	}
393 
394 	return rval;
395 }
396 
397 #define SAFE_SIGNAL(signum, handler) \
398 	safe_signal(__FILE__, __LINE__, (signum), (handler))
399 
400 #define SAFE_EXECLP(file, arg, ...) do {                   \
401 	execlp((file), (arg), ##__VA_ARGS__);              \
402 	tst_brk_(__FILE__, __LINE__, TBROK | TERRNO,       \
403 	         "execlp(%s, %s, ...) failed", file, arg); \
404 	} while (0)
405 
406 int safe_getpriority(const char *file, const int lineno, int which, id_t who);
407 #define SAFE_GETPRIORITY(which, who) \
408 	safe_getpriority(__FILE__, __LINE__, (which), (who))
409 
410 int safe_setxattr(const char *file, const int lineno, const char *path,
411             const char *name, const void *value, size_t size, int flags);
412 #define SAFE_SETXATTR(path, name, value, size, flags) \
413 	safe_setxattr(__FILE__, __LINE__, (path), (name), (value), (size), (flags))
414 
415 int safe_lsetxattr(const char *file, const int lineno, const char *path,
416             const char *name, const void *value, size_t size, int flags);
417 #define SAFE_LSETXATTR(path, name, value, size, flags) \
418 	safe_lsetxattr(__FILE__, __LINE__, (path), (name), (value), (size), (flags))
419 
420 int safe_fsetxattr(const char *file, const int lineno, int fd, const char *name,
421             const void *value, size_t size, int flags);
422 #define SAFE_FSETXATTR(fd, name, value, size, flags) \
423 	safe_fsetxattr(__FILE__, __LINE__, (fd), (name), (value), (size), (flags))
424 
425 int safe_removexattr(const char *file, const int lineno, const char *path,
426 		const char *name);
427 #define SAFE_REMOVEXATTR(path, name) \
428 	safe_removexattr(__FILE__, __LINE__, (path), (name))
429 
430 int safe_fsync(const char *file, const int lineno, int fd);
431 #define SAFE_FSYNC(fd) safe_fsync(__FILE__, __LINE__, (fd))
432 
433 #endif /* SAFE_MACROS_H__ */
434