2 Unix SMB/CIFS implementation.
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Jeremy Allison 1998-2005
6 Copyright (C) Timur Bakeyev 2005
7 Copyright (C) Bjoern Jacke 2006-2007
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #ifdef HAVE_SYS_PRCTL_H
26 #include <sys/prctl.h>
30 The idea is that this file will eventually have wrappers around all
31 important system calls in samba. The aims are:
33 - to enable easier porting by putting OS dependent stuff in here
35 - to allow for hooks into other "pseudo-filesystems"
37 - to allow easier integration of things like the japanese extensions
39 - to support the philosophy of Samba to expose the features of
40 the OS within the SMB model. In general whatever file/printer/variable
41 expansions/etc make sense to the OS should be acceptable to Samba.
46 /*******************************************************************
47 A wrapper for memalign
48 ********************************************************************/
50 void *sys_memalign( size_t align, size_t size )
52 #if defined(HAVE_POSIX_MEMALIGN)
54 int ret = posix_memalign( &p, align, size );
59 #elif defined(HAVE_MEMALIGN)
60 return memalign( align, size );
62 /* On *BSD systems memaligns doesn't exist, but memory will
63 * be aligned on allocations of > pagesize. */
64 #if defined(SYSCONF_SC_PAGESIZE)
65 size_t pagesize = (size_t)sysconf(_SC_PAGESIZE);
66 #elif defined(HAVE_GETPAGESIZE)
67 size_t pagesize = (size_t)getpagesize();
69 size_t pagesize = (size_t)-1;
71 if (pagesize == (size_t)-1) {
72 DEBUG(0,("memalign functionalaity not available on this platform!\n"));
75 if (size < pagesize) {
78 return SMB_MALLOC(size);
82 /*******************************************************************
83 A wrapper for usleep in case we don't have one.
84 ********************************************************************/
86 int sys_usleep(long usecs)
93 * We need this braindamage as the glibc usleep
94 * is not SPEC1170 complient... grumble... JRA.
97 if(usecs < 0 || usecs > 1000000) {
105 #else /* HAVE_USLEEP */
107 * Fake it with select...
110 tval.tv_usec = usecs/1000;
111 select(0,NULL,NULL,NULL,&tval);
113 #endif /* HAVE_USLEEP */
116 /*******************************************************************
117 A read wrapper that will deal with EINTR.
118 ********************************************************************/
120 ssize_t sys_read(int fd, void *buf, size_t count)
125 ret = read(fd, buf, count);
126 } while (ret == -1 && errno == EINTR);
130 /*******************************************************************
131 A write wrapper that will deal with EINTR.
132 ********************************************************************/
134 ssize_t sys_write(int fd, const void *buf, size_t count)
139 ret = write(fd, buf, count);
140 } while (ret == -1 && errno == EINTR);
144 /*******************************************************************
145 A pread wrapper that will deal with EINTR and 64-bit file offsets.
146 ********************************************************************/
148 #if defined(HAVE_PREAD) || defined(HAVE_PREAD64)
149 ssize_t sys_pread(int fd, void *buf, size_t count, SMB_OFF_T off)
154 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_PREAD64)
155 ret = pread64(fd, buf, count, off);
157 ret = pread(fd, buf, count, off);
159 } while (ret == -1 && errno == EINTR);
164 /*******************************************************************
165 A write wrapper that will deal with EINTR and 64-bit file offsets.
166 ********************************************************************/
168 #if defined(HAVE_PWRITE) || defined(HAVE_PWRITE64)
169 ssize_t sys_pwrite(int fd, const void *buf, size_t count, SMB_OFF_T off)
174 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_PWRITE64)
175 ret = pwrite64(fd, buf, count, off);
177 ret = pwrite(fd, buf, count, off);
179 } while (ret == -1 && errno == EINTR);
184 /*******************************************************************
185 A send wrapper that will deal with EINTR.
186 ********************************************************************/
188 ssize_t sys_send(int s, const void *msg, size_t len, int flags)
193 ret = send(s, msg, len, flags);
194 } while (ret == -1 && errno == EINTR);
198 /*******************************************************************
199 A sendto wrapper that will deal with EINTR.
200 ********************************************************************/
202 ssize_t sys_sendto(int s, const void *msg, size_t len, int flags, const struct sockaddr *to, socklen_t tolen)
207 ret = sendto(s, msg, len, flags, to, tolen);
208 } while (ret == -1 && errno == EINTR);
212 /*******************************************************************
213 A recv wrapper that will deal with EINTR.
214 ********************************************************************/
216 ssize_t sys_recv(int fd, void *buf, size_t count, int flags)
221 ret = recv(fd, buf, count, flags);
222 } while (ret == -1 && errno == EINTR);
226 /*******************************************************************
227 A recvfrom wrapper that will deal with EINTR.
228 ********************************************************************/
230 ssize_t sys_recvfrom(int s, void *buf, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen)
235 ret = recvfrom(s, buf, len, flags, from, fromlen);
236 } while (ret == -1 && errno == EINTR);
240 /*******************************************************************
241 A fcntl wrapper that will deal with EINTR.
242 ********************************************************************/
244 int sys_fcntl_ptr(int fd, int cmd, void *arg)
249 ret = fcntl(fd, cmd, arg);
250 } while (ret == -1 && errno == EINTR);
254 /*******************************************************************
255 A fcntl wrapper that will deal with EINTR.
256 ********************************************************************/
258 int sys_fcntl_long(int fd, int cmd, long arg)
263 ret = fcntl(fd, cmd, arg);
264 } while (ret == -1 && errno == EINTR);
268 /*******************************************************************
269 A stat() wrapper that will deal with 64 bit filesizes.
270 ********************************************************************/
272 int sys_stat(const char *fname,SMB_STRUCT_STAT *sbuf)
275 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_STAT64)
276 ret = stat64(fname, sbuf);
278 ret = stat(fname, sbuf);
280 /* we always want directories to appear zero size */
281 if (ret == 0 && S_ISDIR(sbuf->st_mode)) sbuf->st_size = 0;
285 /*******************************************************************
286 An fstat() wrapper that will deal with 64 bit filesizes.
287 ********************************************************************/
289 int sys_fstat(int fd,SMB_STRUCT_STAT *sbuf)
292 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_FSTAT64)
293 ret = fstat64(fd, sbuf);
295 ret = fstat(fd, sbuf);
297 /* we always want directories to appear zero size */
298 if (ret == 0 && S_ISDIR(sbuf->st_mode)) sbuf->st_size = 0;
302 /*******************************************************************
303 An lstat() wrapper that will deal with 64 bit filesizes.
304 ********************************************************************/
306 int sys_lstat(const char *fname,SMB_STRUCT_STAT *sbuf)
309 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_LSTAT64)
310 ret = lstat64(fname, sbuf);
312 ret = lstat(fname, sbuf);
314 /* we always want directories to appear zero size */
315 if (ret == 0 && S_ISDIR(sbuf->st_mode)) sbuf->st_size = 0;
319 /*******************************************************************
320 An ftruncate() wrapper that will deal with 64 bit filesizes.
321 ********************************************************************/
323 int sys_ftruncate(int fd, SMB_OFF_T offset)
325 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_FTRUNCATE64)
326 return ftruncate64(fd, offset);
328 return ftruncate(fd, offset);
332 /*******************************************************************
333 An lseek() wrapper that will deal with 64 bit filesizes.
334 ********************************************************************/
336 SMB_OFF_T sys_lseek(int fd, SMB_OFF_T offset, int whence)
338 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_LSEEK64)
339 return lseek64(fd, offset, whence);
341 return lseek(fd, offset, whence);
345 /*******************************************************************
346 An fseek() wrapper that will deal with 64 bit filesizes.
347 ********************************************************************/
349 int sys_fseek(FILE *fp, SMB_OFF_T offset, int whence)
351 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(LARGE_SMB_OFF_T) && defined(HAVE_FSEEK64)
352 return fseek64(fp, offset, whence);
353 #elif defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(LARGE_SMB_OFF_T) && defined(HAVE_FSEEKO64)
354 return fseeko64(fp, offset, whence);
356 return fseek(fp, offset, whence);
360 /*******************************************************************
361 An ftell() wrapper that will deal with 64 bit filesizes.
362 ********************************************************************/
364 SMB_OFF_T sys_ftell(FILE *fp)
366 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(LARGE_SMB_OFF_T) && defined(HAVE_FTELL64)
367 return (SMB_OFF_T)ftell64(fp);
368 #elif defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(LARGE_SMB_OFF_T) && defined(HAVE_FTELLO64)
369 return (SMB_OFF_T)ftello64(fp);
371 return (SMB_OFF_T)ftell(fp);
375 /*******************************************************************
376 A creat() wrapper that will deal with 64 bit filesizes.
377 ********************************************************************/
379 int sys_creat(const char *path, mode_t mode)
381 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_CREAT64)
382 return creat64(path, mode);
385 * If creat64 isn't defined then ensure we call a potential open64.
388 return sys_open(path, O_WRONLY | O_CREAT | O_TRUNC, mode);
392 /*******************************************************************
393 An open() wrapper that will deal with 64 bit filesizes.
394 ********************************************************************/
396 int sys_open(const char *path, int oflag, mode_t mode)
398 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OPEN64)
399 return open64(path, oflag, mode);
401 return open(path, oflag, mode);
405 /*******************************************************************
406 An fopen() wrapper that will deal with 64 bit filesizes.
407 ********************************************************************/
409 FILE *sys_fopen(const char *path, const char *type)
411 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_FOPEN64)
412 return fopen64(path, type);
414 return fopen(path, type);
419 /*******************************************************************
420 A flock() wrapper that will perform the kernel flock.
421 ********************************************************************/
423 void kernel_flock(int fd, uint32 share_mode)
425 #if HAVE_KERNEL_SHARE_MODES
427 if (share_mode == FILE_SHARE_WRITE) {
428 kernel_mode = LOCK_MAND|LOCK_WRITE;
429 } else if (share_mode == FILE_SHARE_READ) {
430 kernel_mode = LOCK_MAND|LOCK_READ;
431 } else if (share_mode == FILE_SHARE_NONE) {
432 kernel_mode = LOCK_MAND;
435 flock(fd, kernel_mode);
443 /*******************************************************************
444 An opendir wrapper that will deal with 64 bit filesizes.
445 ********************************************************************/
447 SMB_STRUCT_DIR *sys_opendir(const char *name)
449 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OPENDIR64)
450 return opendir64(name);
452 return opendir(name);
456 /*******************************************************************
457 A readdir wrapper that will deal with 64 bit filesizes.
458 ********************************************************************/
460 SMB_STRUCT_DIRENT *sys_readdir(SMB_STRUCT_DIR *dirp)
462 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_READDIR64)
463 return readdir64(dirp);
465 return readdir(dirp);
469 /*******************************************************************
470 A seekdir wrapper that will deal with 64 bit filesizes.
471 ********************************************************************/
473 void sys_seekdir(SMB_STRUCT_DIR *dirp, long offset)
475 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_SEEKDIR64)
476 seekdir64(dirp, offset);
478 seekdir(dirp, offset);
482 /*******************************************************************
483 A telldir wrapper that will deal with 64 bit filesizes.
484 ********************************************************************/
486 long sys_telldir(SMB_STRUCT_DIR *dirp)
488 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_TELLDIR64)
489 return (long)telldir64(dirp);
491 return (long)telldir(dirp);
495 /*******************************************************************
496 A rewinddir wrapper that will deal with 64 bit filesizes.
497 ********************************************************************/
499 void sys_rewinddir(SMB_STRUCT_DIR *dirp)
501 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_REWINDDIR64)
508 /*******************************************************************
509 A close wrapper that will deal with 64 bit filesizes.
510 ********************************************************************/
512 int sys_closedir(SMB_STRUCT_DIR *dirp)
514 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_CLOSEDIR64)
515 return closedir64(dirp);
517 return closedir(dirp);
521 /*******************************************************************
522 An mknod() wrapper that will deal with 64 bit filesizes.
523 ********************************************************************/
525 int sys_mknod(const char *path, mode_t mode, SMB_DEV_T dev)
527 #if defined(HAVE_MKNOD) || defined(HAVE_MKNOD64)
528 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_MKNOD64) && defined(HAVE_DEV64_T)
529 return mknod64(path, mode, dev);
531 return mknod(path, mode, dev);
534 /* No mknod system call. */
540 /*******************************************************************
541 The wait() calls vary between systems
542 ********************************************************************/
544 int sys_waitpid(pid_t pid,int *status,int options)
547 return waitpid(pid,status,options);
548 #else /* HAVE_WAITPID */
549 return wait4(pid, status, options, NULL);
550 #endif /* HAVE_WAITPID */
553 /*******************************************************************
554 System wrapper for getwd
555 ********************************************************************/
557 char *sys_getwd(char *s)
561 wd = (char *)getcwd(s, PATH_MAX);
563 wd = (char *)getwd(s);
568 #if defined(HAVE_POSIX_CAPABILITIES)
570 /**************************************************************************
571 Try and abstract process capabilities (for systems that have them).
572 ****************************************************************************/
574 /* Set the POSIX capabilities needed for the given purpose into the effective
575 * capability set of the current process. Make sure they are always removed
576 * from the inheritable set, because there is no circumstance in which our
577 * children should inherit our elevated privileges.
579 static bool set_process_capability(enum smbd_capability capability,
582 cap_value_t cap_vals[2] = {0};
583 int num_cap_vals = 0;
587 #if defined(HAVE_PRCTL) && defined(PR_GET_KEEPCAPS) && defined(PR_SET_KEEPCAPS)
588 /* On Linux, make sure that any capabilities we grab are sticky
589 * across UID changes. We expect that this would allow us to keep both
590 * the effective and permitted capability sets, but as of circa 2.6.16,
591 * only the permitted set is kept. It is a bug (which we work around)
592 * that the effective set is lost, but we still require the effective
595 if (!prctl(PR_GET_KEEPCAPS)) {
596 prctl(PR_SET_KEEPCAPS, 1);
600 cap = cap_get_proc();
602 DEBUG(0,("set_process_capability: cap_get_proc failed: %s\n",
607 switch (capability) {
608 case KERNEL_OPLOCK_CAPABILITY:
609 #ifdef CAP_NETWORK_MGT
610 /* IRIX has CAP_NETWORK_MGT for oplocks. */
611 cap_vals[num_cap_vals++] = CAP_NETWORK_MGT;
614 case DMAPI_ACCESS_CAPABILITY:
615 #ifdef CAP_DEVICE_MGT
616 /* IRIX has CAP_DEVICE_MGT for DMAPI access. */
617 cap_vals[num_cap_vals++] = CAP_DEVICE_MGT;
619 /* Linux has CAP_MKNOD for DMAPI access. */
620 cap_vals[num_cap_vals++] = CAP_MKNOD;
623 case LEASE_CAPABILITY:
625 cap_vals[num_cap_vals++] = CAP_LEASE;
630 SMB_ASSERT(num_cap_vals <= ARRAY_SIZE(cap_vals));
632 if (num_cap_vals == 0) {
637 cap_set_flag(cap, CAP_EFFECTIVE, num_cap_vals, cap_vals,
638 enable ? CAP_SET : CAP_CLEAR);
640 /* We never want to pass capabilities down to our children, so make
641 * sure they are not inherited.
643 cap_set_flag(cap, CAP_INHERITABLE, num_cap_vals, cap_vals, CAP_CLEAR);
645 if (cap_set_proc(cap) == -1) {
646 DEBUG(0, ("set_process_capability: cap_set_proc failed: %s\n",
656 #endif /* HAVE_POSIX_CAPABILITIES */
658 /****************************************************************************
659 Gain the oplock capability from the kernel if possible.
660 ****************************************************************************/
662 void set_effective_capability(enum smbd_capability capability)
664 #if defined(HAVE_POSIX_CAPABILITIES)
665 set_process_capability(capability, True);
666 #endif /* HAVE_POSIX_CAPABILITIES */
669 void drop_effective_capability(enum smbd_capability capability)
671 #if defined(HAVE_POSIX_CAPABILITIES)
672 set_process_capability(capability, False);
673 #endif /* HAVE_POSIX_CAPABILITIES */
676 /**************************************************************************
677 Wrapper for random().
678 ****************************************************************************/
680 long sys_random(void)
682 #if defined(HAVE_RANDOM)
683 return (long)random();
684 #elif defined(HAVE_RAND)
687 DEBUG(0,("Error - no random function available !\n"));
692 /**************************************************************************
693 Wrapper for srandom().
694 ****************************************************************************/
696 void sys_srandom(unsigned int seed)
698 #if defined(HAVE_SRANDOM)
700 #elif defined(HAVE_SRAND)
703 DEBUG(0,("Error - no srandom function available !\n"));
708 /**************************************************************************
709 Returns equivalent to NGROUPS_MAX - using sysconf if needed.
710 ****************************************************************************/
714 #if defined(SYSCONF_SC_NGROUPS_MAX)
715 int ret = sysconf(_SC_NGROUPS_MAX);
716 return (ret == -1) ? NGROUPS_MAX : ret;
722 /**************************************************************************
723 Wrap setgroups and getgroups for systems that declare getgroups() as
724 returning an array of gid_t, but actuall return an array of int.
725 ****************************************************************************/
727 #if defined(HAVE_BROKEN_GETGROUPS)
728 static int sys_broken_getgroups(int setlen, gid_t *gidset)
735 return getgroups(setlen, &gid);
739 * Broken case. We need to allocate a
740 * GID_T array of size setlen.
749 setlen = groups_max();
751 if((group_list = SMB_MALLOC_ARRAY(GID_T, setlen)) == NULL) {
752 DEBUG(0,("sys_getgroups: Malloc fail.\n"));
756 if((ngroups = getgroups(setlen, group_list)) < 0) {
757 int saved_errno = errno;
758 SAFE_FREE(group_list);
763 for(i = 0; i < ngroups; i++)
764 gidset[i] = (gid_t)group_list[i];
766 SAFE_FREE(group_list);
770 static int sys_broken_setgroups(int setlen, gid_t *gidset)
778 if (setlen < 0 || setlen > groups_max()) {
784 * Broken case. We need to allocate a
785 * GID_T array of size setlen.
788 if((group_list = SMB_MALLOC_ARRAY(GID_T, setlen)) == NULL) {
789 DEBUG(0,("sys_setgroups: Malloc fail.\n"));
793 for(i = 0; i < setlen; i++)
794 group_list[i] = (GID_T) gidset[i];
796 if(setgroups(setlen, group_list) != 0) {
797 int saved_errno = errno;
798 SAFE_FREE(group_list);
803 SAFE_FREE(group_list);
807 #endif /* HAVE_BROKEN_GETGROUPS */
809 /* This is a list of systems that require the first GID passed to setgroups(2)
810 * to be the effective GID. If your system is one of these, add it here.
812 #if defined (FREEBSD) || defined (DARWINOS)
813 #define USE_BSD_SETGROUPS
816 #if defined(USE_BSD_SETGROUPS)
817 /* Depending on the particular BSD implementation, the first GID that is
818 * passed to setgroups(2) will either be ignored or will set the credential's
819 * effective GID. In either case, the right thing to do is to guarantee that
820 * gidset[0] is the effective GID.
822 static int sys_bsd_setgroups(gid_t primary_gid, int setlen, const gid_t *gidset)
824 gid_t *new_gidset = NULL;
828 /* setgroups(2) will fail with EINVAL if we pass too many groups. */
831 /* No group list, just make sure we are setting the efective GID. */
833 return setgroups(1, &primary_gid);
836 /* If the primary gid is not the first array element, grow the array
837 * and insert it at the front.
839 if (gidset[0] != primary_gid) {
840 new_gidset = SMB_MALLOC_ARRAY(gid_t, setlen + 1);
841 if (new_gidset == NULL) {
845 memcpy(new_gidset + 1, gidset, (setlen * sizeof(gid_t)));
846 new_gidset[0] = primary_gid;
851 DEBUG(3, ("forced to truncate group list from %d to %d\n",
856 #if defined(HAVE_BROKEN_GETGROUPS)
857 ret = sys_broken_setgroups(setlen, new_gidset ? new_gidset : gidset);
859 ret = setgroups(setlen, new_gidset ? new_gidset : gidset);
864 SAFE_FREE(new_gidset);
871 #endif /* USE_BSD_SETGROUPS */
873 /**************************************************************************
874 Wrapper for getgroups. Deals with broken (int) case.
875 ****************************************************************************/
877 int sys_getgroups(int setlen, gid_t *gidset)
879 #if defined(HAVE_BROKEN_GETGROUPS)
880 return sys_broken_getgroups(setlen, gidset);
882 return getgroups(setlen, gidset);
886 /**************************************************************************
887 Wrapper for setgroups. Deals with broken (int) case and BSD case.
888 ****************************************************************************/
890 int sys_setgroups(gid_t UNUSED(primary_gid), int setlen, gid_t *gidset)
892 #if !defined(HAVE_SETGROUPS)
895 #endif /* HAVE_SETGROUPS */
897 #if defined(USE_BSD_SETGROUPS)
898 return sys_bsd_setgroups(primary_gid, setlen, gidset);
899 #elif defined(HAVE_BROKEN_GETGROUPS)
900 return sys_broken_setgroups(setlen, gidset);
902 return setgroups(setlen, gidset);
906 /**************************************************************************
907 Wrappers for setpwent(), getpwent() and endpwent()
908 ****************************************************************************/
910 void sys_setpwent(void)
915 struct passwd *sys_getpwent(void)
920 void sys_endpwent(void)
925 /**************************************************************************
926 Wrappers for getpwnam(), getpwuid(), getgrnam(), getgrgid()
927 ****************************************************************************/
930 struct passwd *sys_getpwnam(const char *name)
932 return getpwnam(name);
935 struct passwd *sys_getpwuid(uid_t uid)
937 return getpwuid(uid);
940 struct group *sys_getgrnam(const char *name)
942 return getgrnam(name);
945 struct group *sys_getgrgid(gid_t gid)
947 return getgrgid(gid);
950 /**************************************************************************
951 Extract a command into an arg list.
952 ****************************************************************************/
954 static char **extract_args(TALLOC_CTX *mem_ctx, const char *command)
963 if (!(trunc_cmd = talloc_strdup(mem_ctx, command))) {
964 DEBUG(0, ("talloc failed\n"));
968 if(!(ptr = strtok_r(trunc_cmd, " \t", &saveptr))) {
969 TALLOC_FREE(trunc_cmd);
978 for( argcl = 1; ptr; ptr = strtok_r(NULL, " \t", &saveptr))
981 TALLOC_FREE(trunc_cmd);
983 if (!(argl = TALLOC_ARRAY(mem_ctx, char *, argcl + 1))) {
988 * Now do the extraction.
991 if (!(trunc_cmd = talloc_strdup(mem_ctx, command))) {
995 ptr = strtok_r(trunc_cmd, " \t", &saveptr);
998 if (!(argl[i++] = talloc_strdup(argl, ptr))) {
1002 while((ptr = strtok_r(NULL, " \t", &saveptr)) != NULL) {
1004 if (!(argl[i++] = talloc_strdup(argl, ptr))) {
1013 DEBUG(0, ("talloc failed\n"));
1014 TALLOC_FREE(trunc_cmd);
1020 /**************************************************************************
1021 Wrapper for fork. Ensures that mypid is reset. Used so we can write
1022 a sys_getpid() that only does a system call *once*.
1023 ****************************************************************************/
1025 static pid_t mypid = (pid_t)-1;
1027 pid_t sys_fork(void)
1029 pid_t forkret = fork();
1031 if (forkret == (pid_t)0) /* Child - reset mypid so sys_getpid does a system call. */
1037 /**************************************************************************
1038 Wrapper for getpid. Ensures we only do a system call *once*.
1039 ****************************************************************************/
1041 pid_t sys_getpid(void)
1043 if (mypid == (pid_t)-1)
1049 /**************************************************************************
1050 Wrapper for popen. Safer as it doesn't search a path.
1051 Modified from the glibc sources.
1052 modified by tridge to return a file descriptor. We must kick our FILE* habit
1053 ****************************************************************************/
1055 typedef struct _popen_list
1059 struct _popen_list *next;
1062 static popen_list *popen_chain;
1064 int sys_popen(const char *command)
1066 int parent_end, child_end;
1068 popen_list *entry = NULL;
1071 if (pipe(pipe_fds) < 0)
1074 parent_end = pipe_fds[0];
1075 child_end = pipe_fds[1];
1082 if((entry = SMB_MALLOC_P(popen_list)) == NULL)
1085 ZERO_STRUCTP(entry);
1088 * Extract the command and args into a NULL terminated array.
1091 if(!(argl = extract_args(NULL, command)))
1094 entry->child_pid = sys_fork();
1096 if (entry->child_pid == -1) {
1100 if (entry->child_pid == 0) {
1106 int child_std_end = STDOUT_FILENO;
1110 if (child_end != child_std_end) {
1111 dup2 (child_end, child_std_end);
1116 * POSIX.2: "popen() shall ensure that any streams from previous
1117 * popen() calls that remain open in the parent process are closed
1118 * in the new child process."
1121 for (p = popen_chain; p; p = p->next)
1124 execv(argl[0], argl);
1135 /* Link into popen_chain. */
1136 entry->next = popen_chain;
1137 popen_chain = entry;
1138 entry->fd = parent_end;
1151 /**************************************************************************
1152 Wrapper for pclose. Modified from the glibc sources.
1153 ****************************************************************************/
1155 int sys_pclose(int fd)
1158 popen_list **ptr = &popen_chain;
1159 popen_list *entry = NULL;
1163 /* Unlink from popen_chain. */
1164 for ( ; *ptr != NULL; ptr = &(*ptr)->next) {
1165 if ((*ptr)->fd == fd) {
1167 *ptr = (*ptr)->next;
1173 if (status < 0 || close(entry->fd) < 0)
1177 * As Samba is catching and eating child process
1178 * exits we don't really care about the child exit
1179 * code, a -1 with errno = ECHILD will do fine for us.
1183 wait_pid = sys_waitpid (entry->child_pid, &wstatus, 0);
1184 } while (wait_pid == -1 && errno == EINTR);
1193 int sys_dup2(int oldfd, int newfd)
1195 #if defined(HAVE_DUP2)
1196 return dup2(oldfd, newfd);
1203 /**************************************************************************
1204 Wrapper for Admin Logs.
1205 ****************************************************************************/
1207 void sys_adminlog(int priority, const char *format_str, ...)
1211 char *msgbuf = NULL;
1213 va_start( ap, format_str );
1214 ret = vasprintf( &msgbuf, format_str, ap );
1220 #if defined(HAVE_SYSLOG)
1221 syslog( priority, "%s", msgbuf );
1223 DEBUG(0,("%s", msgbuf ));
1228 /******** Solaris EA helper function prototypes ********/
1229 #ifdef HAVE_ATTROPEN
1230 #define SOLARIS_ATTRMODE S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP
1231 static int solaris_write_xattr(int attrfd, const char *value, size_t size);
1232 static ssize_t solaris_read_xattr(int attrfd, void *value, size_t size);
1233 static ssize_t solaris_list_xattr(int attrdirfd, char *list, size_t size);
1234 static int solaris_unlinkat(int attrdirfd, const char *name);
1235 static int solaris_attropen(const char *path, const char *attrpath, int oflag, mode_t mode);
1236 static int solaris_openat(int fildes, const char *path, int oflag, mode_t mode);
1239 /**************************************************************************
1240 Wrappers for extented attribute calls. Based on the Linux package with
1241 support for IRIX and (Net|Free)BSD also. Expand as other systems have them.
1242 ****************************************************************************/
1244 ssize_t sys_getxattr (const char *path, const char *name, void *value, size_t size)
1246 #if defined(HAVE_GETXATTR)
1247 #ifndef XATTR_ADD_OPT
1248 return getxattr(path, name, value, size);
1251 return getxattr(path, name, value, size, 0, options);
1253 #elif defined(HAVE_GETEA)
1254 return getea(path, name, value, size);
1255 #elif defined(HAVE_EXTATTR_GET_FILE)
1258 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1259 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1260 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1262 * The BSD implementation has a nasty habit of silently truncating
1263 * the returned value to the size of the buffer, so we have to check
1264 * that the buffer is large enough to fit the returned value.
1266 if((retval=extattr_get_file(path, attrnamespace, attrname, NULL, 0)) >= 0) {
1271 if((retval=extattr_get_file(path, attrnamespace, attrname, value, size)) >= 0)
1275 DEBUG(10,("sys_getxattr: extattr_get_file() failed with: %s\n", strerror(errno)));
1277 #elif defined(HAVE_ATTR_GET)
1278 int retval, flags = 0;
1279 int valuelength = (int)size;
1280 char *attrname = strchr(name,'.') + 1;
1282 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1284 retval = attr_get(path, attrname, (char *)value, &valuelength, flags);
1286 return retval ? retval : valuelength;
1287 #elif defined(HAVE_ATTROPEN)
1289 int attrfd = solaris_attropen(path, name, O_RDONLY, 0);
1291 ret = solaris_read_xattr(attrfd, value, size);
1301 ssize_t sys_lgetxattr (const char *path, const char *name, void *value, size_t size)
1303 #if defined(HAVE_LGETXATTR)
1304 return lgetxattr(path, name, value, size);
1305 #elif defined(HAVE_GETXATTR) && defined(XATTR_ADD_OPT)
1306 int options = XATTR_NOFOLLOW;
1307 return getxattr(path, name, value, size, 0, options);
1308 #elif defined(HAVE_LGETEA)
1309 return lgetea(path, name, value, size);
1310 #elif defined(HAVE_EXTATTR_GET_LINK)
1313 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1314 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1315 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1317 if((retval=extattr_get_link(path, attrnamespace, attrname, NULL, 0)) >= 0) {
1322 if((retval=extattr_get_link(path, attrnamespace, attrname, value, size)) >= 0)
1326 DEBUG(10,("sys_lgetxattr: extattr_get_link() failed with: %s\n", strerror(errno)));
1328 #elif defined(HAVE_ATTR_GET)
1329 int retval, flags = ATTR_DONTFOLLOW;
1330 int valuelength = (int)size;
1331 char *attrname = strchr(name,'.') + 1;
1333 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1335 retval = attr_get(path, attrname, (char *)value, &valuelength, flags);
1337 return retval ? retval : valuelength;
1338 #elif defined(HAVE_ATTROPEN)
1340 int attrfd = solaris_attropen(path, name, O_RDONLY|AT_SYMLINK_NOFOLLOW, 0);
1342 ret = solaris_read_xattr(attrfd, value, size);
1352 ssize_t sys_fgetxattr (int filedes, const char *name, void *value, size_t size)
1354 #if defined(HAVE_FGETXATTR)
1355 #ifndef XATTR_ADD_OPT
1356 return fgetxattr(filedes, name, value, size);
1359 return fgetxattr(filedes, name, value, size, 0, options);
1361 #elif defined(HAVE_FGETEA)
1362 return fgetea(filedes, name, value, size);
1363 #elif defined(HAVE_EXTATTR_GET_FD)
1366 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1367 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1368 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1370 if((retval=extattr_get_fd(filedes, attrnamespace, attrname, NULL, 0)) >= 0) {
1375 if((retval=extattr_get_fd(filedes, attrnamespace, attrname, value, size)) >= 0)
1379 DEBUG(10,("sys_fgetxattr: extattr_get_fd() failed with: %s\n", strerror(errno)));
1381 #elif defined(HAVE_ATTR_GETF)
1382 int retval, flags = 0;
1383 int valuelength = (int)size;
1384 char *attrname = strchr(name,'.') + 1;
1386 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1388 retval = attr_getf(filedes, attrname, (char *)value, &valuelength, flags);
1390 return retval ? retval : valuelength;
1391 #elif defined(HAVE_ATTROPEN)
1393 int attrfd = solaris_openat(filedes, name, O_RDONLY|O_XATTR, 0);
1395 ret = solaris_read_xattr(attrfd, value, size);
1405 #if defined(HAVE_EXTATTR_LIST_FILE)
1407 #define EXTATTR_PREFIX(s) (s), (sizeof((s))-1)
1415 { EXTATTR_NAMESPACE_SYSTEM, EXTATTR_PREFIX("system.") },
1416 { EXTATTR_NAMESPACE_USER, EXTATTR_PREFIX("user.") },
1424 static ssize_t bsd_attr_list (int type, extattr_arg arg, char *list, size_t size)
1426 ssize_t list_size, total_size = 0;
1429 /* Iterate through extattr(2) namespaces */
1430 for(t = 0; t < (sizeof(extattr)/sizeof(extattr[0])); t++) {
1432 #if defined(HAVE_EXTATTR_LIST_FILE)
1434 list_size = extattr_list_file(arg.path, extattr[t].space, list, size);
1437 #if defined(HAVE_EXTATTR_LIST_LINK)
1439 list_size = extattr_list_link(arg.path, extattr[t].space, list, size);
1442 #if defined(HAVE_EXTATTR_LIST_FD)
1444 list_size = extattr_list_fd(arg.filedes, extattr[t].space, list, size);
1451 /* Some error happend. Errno should be set by the previous call */
1457 /* XXX: Call with an empty buffer may be used to calculate
1458 necessary buffer size. Unfortunately, we can't say, how
1459 many attributes were returned, so here is the potential
1460 problem with the emulation.
1463 /* Take the worse case of one char attribute names -
1464 two bytes per name plus one more for sanity.
1466 total_size += list_size + (list_size/2 + 1)*extattr[t].len;
1469 /* Count necessary offset to fit namespace prefixes */
1471 for(i = 0; i < list_size; i += list[i] + 1)
1472 len += extattr[t].len;
1474 total_size += list_size + len;
1475 /* Buffer is too small to fit the results */
1476 if(total_size > size) {
1480 /* Shift results back, so we can prepend prefixes */
1481 buf = memmove(list + len, list, list_size);
1483 for(i = 0; i < list_size; i += len + 1) {
1485 strncpy(list, extattr[t].name, extattr[t].len + 1);
1486 list += extattr[t].len;
1487 strncpy(list, buf + i + 1, len);
1498 #if defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
1499 static char attr_buffer[ATTR_MAX_VALUELEN];
1501 static ssize_t irix_attr_list(const char *path, int filedes, char *list, size_t size, int flags)
1503 int retval = 0, index;
1504 attrlist_cursor_t *cursor = 0;
1506 attrlist_t * al = (attrlist_t *)attr_buffer;
1508 size_t ent_size, left = size;
1513 retval = attr_listf(filedes, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
1515 retval = attr_list(path, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
1517 for (index = 0; index < al->al_count; index++) {
1518 ae = ATTR_ENTRY(attr_buffer, index);
1519 ent_size = strlen(ae->a_name) + sizeof("user.");
1520 if (left >= ent_size) {
1521 strncpy(bp, "user.", sizeof("user."));
1522 strncat(bp, ae->a_name, ent_size - sizeof("user."));
1530 total_size += ent_size;
1532 if (al->al_more == 0) break;
1539 retval = attr_listf(filedes, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
1541 retval = attr_list(path, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
1543 for (index = 0; index < al->al_count; index++) {
1544 ae = ATTR_ENTRY(attr_buffer, index);
1545 ent_size = strlen(ae->a_name) + sizeof("system.");
1546 if (left >= ent_size) {
1547 strncpy(bp, "system.", sizeof("system."));
1548 strncat(bp, ae->a_name, ent_size - sizeof("system."));
1556 total_size += ent_size;
1558 if (al->al_more == 0) break;
1561 return (ssize_t)(retval ? retval : total_size);
1566 ssize_t sys_listxattr (const char *path, char *list, size_t size)
1568 #if defined(HAVE_LISTXATTR)
1569 #ifndef XATTR_ADD_OPT
1570 return listxattr(path, list, size);
1573 return listxattr(path, list, size, options);
1575 #elif defined(HAVE_LISTEA)
1576 return listea(path, list, size);
1577 #elif defined(HAVE_EXTATTR_LIST_FILE)
1580 return bsd_attr_list(0, arg, list, size);
1581 #elif defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
1582 return irix_attr_list(path, 0, list, size, 0);
1583 #elif defined(HAVE_ATTROPEN)
1585 int attrdirfd = solaris_attropen(path, ".", O_RDONLY, 0);
1586 if (attrdirfd >= 0) {
1587 ret = solaris_list_xattr(attrdirfd, list, size);
1597 ssize_t sys_llistxattr (const char *path, char *list, size_t size)
1599 #if defined(HAVE_LLISTXATTR)
1600 return llistxattr(path, list, size);
1601 #elif defined(HAVE_LISTXATTR) && defined(XATTR_ADD_OPT)
1602 int options = XATTR_NOFOLLOW;
1603 return listxattr(path, list, size, options);
1604 #elif defined(HAVE_LLISTEA)
1605 return llistea(path, list, size);
1606 #elif defined(HAVE_EXTATTR_LIST_LINK)
1609 return bsd_attr_list(1, arg, list, size);
1610 #elif defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
1611 return irix_attr_list(path, 0, list, size, ATTR_DONTFOLLOW);
1612 #elif defined(HAVE_ATTROPEN)
1614 int attrdirfd = solaris_attropen(path, ".", O_RDONLY|AT_SYMLINK_NOFOLLOW, 0);
1615 if (attrdirfd >= 0) {
1616 ret = solaris_list_xattr(attrdirfd, list, size);
1626 ssize_t sys_flistxattr (int filedes, char *list, size_t size)
1628 #if defined(HAVE_FLISTXATTR)
1629 #ifndef XATTR_ADD_OPT
1630 return flistxattr(filedes, list, size);
1633 return flistxattr(filedes, list, size, options);
1635 #elif defined(HAVE_FLISTEA)
1636 return flistea(filedes, list, size);
1637 #elif defined(HAVE_EXTATTR_LIST_FD)
1639 arg.filedes = filedes;
1640 return bsd_attr_list(2, arg, list, size);
1641 #elif defined(HAVE_ATTR_LISTF)
1642 return irix_attr_list(NULL, filedes, list, size, 0);
1643 #elif defined(HAVE_ATTROPEN)
1645 int attrdirfd = solaris_openat(filedes, ".", O_RDONLY|O_XATTR, 0);
1646 if (attrdirfd >= 0) {
1647 ret = solaris_list_xattr(attrdirfd, list, size);
1657 int sys_removexattr (const char *path, const char *name)
1659 #if defined(HAVE_REMOVEXATTR)
1660 #ifndef XATTR_ADD_OPT
1661 return removexattr(path, name);
1664 return removexattr(path, name, options);
1666 #elif defined(HAVE_REMOVEEA)
1667 return removeea(path, name);
1668 #elif defined(HAVE_EXTATTR_DELETE_FILE)
1670 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1671 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1672 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1674 return extattr_delete_file(path, attrnamespace, attrname);
1675 #elif defined(HAVE_ATTR_REMOVE)
1677 char *attrname = strchr(name,'.') + 1;
1679 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1681 return attr_remove(path, attrname, flags);
1682 #elif defined(HAVE_ATTROPEN)
1684 int attrdirfd = solaris_attropen(path, ".", O_RDONLY, 0);
1685 if (attrdirfd >= 0) {
1686 ret = solaris_unlinkat(attrdirfd, name);
1696 int sys_lremovexattr (const char *path, const char *name)
1698 #if defined(HAVE_LREMOVEXATTR)
1699 return lremovexattr(path, name);
1700 #elif defined(HAVE_REMOVEXATTR) && defined(XATTR_ADD_OPT)
1701 int options = XATTR_NOFOLLOW;
1702 return removexattr(path, name, options);
1703 #elif defined(HAVE_LREMOVEEA)
1704 return lremoveea(path, name);
1705 #elif defined(HAVE_EXTATTR_DELETE_LINK)
1707 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1708 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1709 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1711 return extattr_delete_link(path, attrnamespace, attrname);
1712 #elif defined(HAVE_ATTR_REMOVE)
1713 int flags = ATTR_DONTFOLLOW;
1714 char *attrname = strchr(name,'.') + 1;
1716 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1718 return attr_remove(path, attrname, flags);
1719 #elif defined(HAVE_ATTROPEN)
1721 int attrdirfd = solaris_attropen(path, ".", O_RDONLY|AT_SYMLINK_NOFOLLOW, 0);
1722 if (attrdirfd >= 0) {
1723 ret = solaris_unlinkat(attrdirfd, name);
1733 int sys_fremovexattr (int filedes, const char *name)
1735 #if defined(HAVE_FREMOVEXATTR)
1736 #ifndef XATTR_ADD_OPT
1737 return fremovexattr(filedes, name);
1740 return fremovexattr(filedes, name, options);
1742 #elif defined(HAVE_FREMOVEEA)
1743 return fremoveea(filedes, name);
1744 #elif defined(HAVE_EXTATTR_DELETE_FD)
1746 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1747 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1748 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1750 return extattr_delete_fd(filedes, attrnamespace, attrname);
1751 #elif defined(HAVE_ATTR_REMOVEF)
1753 char *attrname = strchr(name,'.') + 1;
1755 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1757 return attr_removef(filedes, attrname, flags);
1758 #elif defined(HAVE_ATTROPEN)
1760 int attrdirfd = solaris_openat(filedes, ".", O_RDONLY|O_XATTR, 0);
1761 if (attrdirfd >= 0) {
1762 ret = solaris_unlinkat(attrdirfd, name);
1772 int sys_setxattr (const char *path, const char *name, const void *value, size_t size, int flags)
1774 #if defined(HAVE_SETXATTR)
1775 #ifndef XATTR_ADD_OPT
1776 return setxattr(path, name, value, size, flags);
1779 return setxattr(path, name, value, size, 0, options);
1781 #elif defined(HAVE_SETEA)
1782 return setea(path, name, value, size, flags);
1783 #elif defined(HAVE_EXTATTR_SET_FILE)
1786 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1787 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1788 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1790 /* Check attribute existence */
1791 retval = extattr_get_file(path, attrnamespace, attrname, NULL, 0);
1793 /* REPLACE attribute, that doesn't exist */
1794 if (flags & XATTR_REPLACE && errno == ENOATTR) {
1798 /* Ignore other errors */
1801 /* CREATE attribute, that already exists */
1802 if (flags & XATTR_CREATE) {
1808 retval = extattr_set_file(path, attrnamespace, attrname, value, size);
1809 return (retval < 0) ? -1 : 0;
1810 #elif defined(HAVE_ATTR_SET)
1812 char *attrname = strchr(name,'.') + 1;
1814 if (strncmp(name, "system", 6) == 0) myflags |= ATTR_ROOT;
1815 if (flags & XATTR_CREATE) myflags |= ATTR_CREATE;
1816 if (flags & XATTR_REPLACE) myflags |= ATTR_REPLACE;
1818 return attr_set(path, attrname, (const char *)value, size, myflags);
1819 #elif defined(HAVE_ATTROPEN)
1821 int myflags = O_RDWR;
1823 if (flags & XATTR_CREATE) myflags |= O_EXCL;
1824 if (!(flags & XATTR_REPLACE)) myflags |= O_CREAT;
1825 attrfd = solaris_attropen(path, name, myflags, (mode_t) SOLARIS_ATTRMODE);
1827 ret = solaris_write_xattr(attrfd, value, size);
1837 int sys_lsetxattr (const char *path, const char *name, const void *value, size_t size, int flags)
1839 #if defined(HAVE_LSETXATTR)
1840 return lsetxattr(path, name, value, size, flags);
1841 #elif defined(HAVE_SETXATTR) && defined(XATTR_ADD_OPT)
1842 int options = XATTR_NOFOLLOW;
1843 return setxattr(path, name, value, size, 0, options);
1844 #elif defined(LSETEA)
1845 return lsetea(path, name, value, size, flags);
1846 #elif defined(HAVE_EXTATTR_SET_LINK)
1849 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1850 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1851 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1853 /* Check attribute existence */
1854 retval = extattr_get_link(path, attrnamespace, attrname, NULL, 0);
1856 /* REPLACE attribute, that doesn't exist */
1857 if (flags & XATTR_REPLACE && errno == ENOATTR) {
1861 /* Ignore other errors */
1864 /* CREATE attribute, that already exists */
1865 if (flags & XATTR_CREATE) {
1872 retval = extattr_set_link(path, attrnamespace, attrname, value, size);
1873 return (retval < 0) ? -1 : 0;
1874 #elif defined(HAVE_ATTR_SET)
1875 int myflags = ATTR_DONTFOLLOW;
1876 char *attrname = strchr(name,'.') + 1;
1878 if (strncmp(name, "system", 6) == 0) myflags |= ATTR_ROOT;
1879 if (flags & XATTR_CREATE) myflags |= ATTR_CREATE;
1880 if (flags & XATTR_REPLACE) myflags |= ATTR_REPLACE;
1882 return attr_set(path, attrname, (const char *)value, size, myflags);
1883 #elif defined(HAVE_ATTROPEN)
1885 int myflags = O_RDWR | AT_SYMLINK_NOFOLLOW;
1887 if (flags & XATTR_CREATE) myflags |= O_EXCL;
1888 if (!(flags & XATTR_REPLACE)) myflags |= O_CREAT;
1889 attrfd = solaris_attropen(path, name, myflags, (mode_t) SOLARIS_ATTRMODE);
1891 ret = solaris_write_xattr(attrfd, value, size);
1901 int sys_fsetxattr (int filedes, const char *name, const void *value, size_t size, int flags)
1903 #if defined(HAVE_FSETXATTR)
1904 #ifndef XATTR_ADD_OPT
1905 return fsetxattr(filedes, name, value, size, flags);
1908 return fsetxattr(filedes, name, value, size, 0, options);
1910 #elif defined(HAVE_FSETEA)
1911 return fsetea(filedes, name, value, size, flags);
1912 #elif defined(HAVE_EXTATTR_SET_FD)
1915 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1916 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1917 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1919 /* Check attribute existence */
1920 retval = extattr_get_fd(filedes, attrnamespace, attrname, NULL, 0);
1922 /* REPLACE attribute, that doesn't exist */
1923 if (flags & XATTR_REPLACE && errno == ENOATTR) {
1927 /* Ignore other errors */
1930 /* CREATE attribute, that already exists */
1931 if (flags & XATTR_CREATE) {
1937 retval = extattr_set_fd(filedes, attrnamespace, attrname, value, size);
1938 return (retval < 0) ? -1 : 0;
1939 #elif defined(HAVE_ATTR_SETF)
1941 char *attrname = strchr(name,'.') + 1;
1943 if (strncmp(name, "system", 6) == 0) myflags |= ATTR_ROOT;
1944 if (flags & XATTR_CREATE) myflags |= ATTR_CREATE;
1945 if (flags & XATTR_REPLACE) myflags |= ATTR_REPLACE;
1947 return attr_setf(filedes, attrname, (const char *)value, size, myflags);
1948 #elif defined(HAVE_ATTROPEN)
1950 int myflags = O_RDWR | O_XATTR;
1952 if (flags & XATTR_CREATE) myflags |= O_EXCL;
1953 if (!(flags & XATTR_REPLACE)) myflags |= O_CREAT;
1954 attrfd = solaris_openat(filedes, name, myflags, (mode_t) SOLARIS_ATTRMODE);
1956 ret = solaris_write_xattr(attrfd, value, size);
1966 /**************************************************************************
1967 helper functions for Solaris' EA support
1968 ****************************************************************************/
1969 #ifdef HAVE_ATTROPEN
1970 static ssize_t solaris_read_xattr(int attrfd, void *value, size_t size)
1974 if (fstat(attrfd, &sbuf) == -1) {
1979 /* This is to return the current size of the named extended attribute */
1981 return sbuf.st_size;
1984 /* check size and read xattr */
1985 if (sbuf.st_size > size) {
1990 return read(attrfd, value, sbuf.st_size);
1993 static ssize_t solaris_list_xattr(int attrdirfd, char *list, size_t size)
1999 int newfd = dup(attrdirfd);
2000 /* CAUTION: The originating file descriptor should not be
2001 used again following the call to fdopendir().
2002 For that reason we dup() the file descriptor
2003 here to make things more clear. */
2004 dirp = fdopendir(newfd);
2006 while ((de = readdir(dirp))) {
2007 size_t listlen = strlen(de->d_name);
2008 if (!strcmp(de->d_name, ".") || !strcmp(de->d_name, "..")) {
2009 /* we don't want "." and ".." here: */
2010 DEBUG(10,("skipped EA %s\n",de->d_name));
2015 /* return the current size of the list of extended attribute names*/
2018 /* check size and copy entrieѕ + nul into list. */
2019 if ((len + listlen + 1) > size) {
2024 safe_strcpy(list + len, de->d_name, listlen);
2032 if (closedir(dirp) == -1) {
2033 DEBUG(0,("closedir dirp failed: %s\n",strerror(errno)));
2039 static int solaris_unlinkat(int attrdirfd, const char *name)
2041 if (unlinkat(attrdirfd, name, 0) == -1) {
2042 if (errno == ENOENT) {
2050 static int solaris_attropen(const char *path, const char *attrpath, int oflag, mode_t mode)
2052 int filedes = attropen(path, attrpath, oflag, mode);
2053 if (filedes == -1) {
2054 DEBUG(10,("attropen FAILED: path: %s, name: %s, errno: %s\n",path,attrpath,strerror(errno)));
2055 if (errno == EINVAL) {
2064 static int solaris_openat(int fildes, const char *path, int oflag, mode_t mode)
2066 int filedes = openat(fildes, path, oflag, mode);
2067 if (filedes == -1) {
2068 DEBUG(10,("openat FAILED: fd: %s, path: %s, errno: %s\n",filedes,path,strerror(errno)));
2069 if (errno == EINVAL) {
2078 static int solaris_write_xattr(int attrfd, const char *value, size_t size)
2080 if ((ftruncate(attrfd, 0) == 0) && (write(attrfd, value, size) == size)) {
2083 DEBUG(10,("solaris_write_xattr FAILED!\n"));
2087 #endif /*HAVE_ATTROPEN*/
2090 /****************************************************************************
2091 Return the major devicenumber for UNIX extensions.
2092 ****************************************************************************/
2094 uint32 unix_dev_major(SMB_DEV_T dev)
2096 #if defined(HAVE_DEVICE_MAJOR_FN)
2097 return (uint32)major(dev);
2099 return (uint32)(dev >> 8);
2103 /****************************************************************************
2104 Return the minor devicenumber for UNIX extensions.
2105 ****************************************************************************/
2107 uint32 unix_dev_minor(SMB_DEV_T dev)
2109 #if defined(HAVE_DEVICE_MINOR_FN)
2110 return (uint32)minor(dev);
2112 return (uint32)(dev & 0xff);
2116 #if defined(WITH_AIO)
2118 /*******************************************************************
2119 An aio_read wrapper that will deal with 64-bit sizes.
2120 ********************************************************************/
2122 int sys_aio_read(SMB_STRUCT_AIOCB *aiocb)
2124 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_READ64)
2125 return aio_read64(aiocb);
2126 #elif defined(HAVE_AIO_READ)
2127 return aio_read(aiocb);
2134 /*******************************************************************
2135 An aio_write wrapper that will deal with 64-bit sizes.
2136 ********************************************************************/
2138 int sys_aio_write(SMB_STRUCT_AIOCB *aiocb)
2140 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_WRITE64)
2141 return aio_write64(aiocb);
2142 #elif defined(HAVE_AIO_WRITE)
2143 return aio_write(aiocb);
2150 /*******************************************************************
2151 An aio_return wrapper that will deal with 64-bit sizes.
2152 ********************************************************************/
2154 ssize_t sys_aio_return(SMB_STRUCT_AIOCB *aiocb)
2156 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_RETURN64)
2157 return aio_return64(aiocb);
2158 #elif defined(HAVE_AIO_RETURN)
2159 return aio_return(aiocb);
2166 /*******************************************************************
2167 An aio_cancel wrapper that will deal with 64-bit sizes.
2168 ********************************************************************/
2170 int sys_aio_cancel(int fd, SMB_STRUCT_AIOCB *aiocb)
2172 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_CANCEL64)
2173 return aio_cancel64(fd, aiocb);
2174 #elif defined(HAVE_AIO_CANCEL)
2175 return aio_cancel(fd, aiocb);
2182 /*******************************************************************
2183 An aio_error wrapper that will deal with 64-bit sizes.
2184 ********************************************************************/
2186 int sys_aio_error(const SMB_STRUCT_AIOCB *aiocb)
2188 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_ERROR64)
2189 return aio_error64(aiocb);
2190 #elif defined(HAVE_AIO_ERROR)
2191 return aio_error(aiocb);
2198 /*******************************************************************
2199 An aio_fsync wrapper that will deal with 64-bit sizes.
2200 ********************************************************************/
2202 int sys_aio_fsync(int op, SMB_STRUCT_AIOCB *aiocb)
2204 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_FSYNC64)
2205 return aio_fsync64(op, aiocb);
2206 #elif defined(HAVE_AIO_FSYNC)
2207 return aio_fsync(op, aiocb);
2214 /*******************************************************************
2215 An aio_fsync wrapper that will deal with 64-bit sizes.
2216 ********************************************************************/
2218 int sys_aio_suspend(const SMB_STRUCT_AIOCB * const cblist[], int n, const struct timespec *timeout)
2220 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_SUSPEND64)
2221 return aio_suspend64(cblist, n, timeout);
2222 #elif defined(HAVE_AIO_FSYNC)
2223 return aio_suspend(cblist, n, timeout);
2229 #else /* !WITH_AIO */
2231 int sys_aio_read(SMB_STRUCT_AIOCB *aiocb)
2237 int sys_aio_write(SMB_STRUCT_AIOCB *aiocb)
2243 ssize_t sys_aio_return(SMB_STRUCT_AIOCB *aiocb)
2249 int sys_aio_cancel(int fd, SMB_STRUCT_AIOCB *aiocb)
2255 int sys_aio_error(const SMB_STRUCT_AIOCB *aiocb)
2261 int sys_aio_fsync(int op, SMB_STRUCT_AIOCB *aiocb)
2267 int sys_aio_suspend(const SMB_STRUCT_AIOCB * const cblist[], int n, const struct timespec *timeout)
2272 #endif /* WITH_AIO */
2274 int sys_getpeereid( int s, uid_t *uid)
2276 #if defined(HAVE_PEERCRED)
2278 socklen_t cred_len = sizeof(struct ucred);
2281 ret = getsockopt(s, SOL_SOCKET, SO_PEERCRED, (void *)&cred, &cred_len);
2286 if (cred_len != sizeof(struct ucred)) {
2299 int sys_getnameinfo(const struct sockaddr *psa,
2308 * For Solaris we must make sure salen is the
2309 * correct length for the incoming sa_family.
2312 if (salen == sizeof(struct sockaddr_storage)) {
2313 salen = sizeof(struct sockaddr_in);
2314 #if defined(HAVE_IPV6)
2315 if (psa->sa_family == AF_INET6) {
2316 salen = sizeof(struct sockaddr_in6);
2320 return getnameinfo(psa, salen, host, hostlen, service, servlen, flags);
2323 int sys_connect(int fd, const struct sockaddr * addr)
2325 socklen_t salen = -1;
2327 if (addr->sa_family == AF_INET) {
2328 salen = sizeof(struct sockaddr_in);
2329 } else if (addr->sa_family == AF_UNIX) {
2330 salen = sizeof(struct sockaddr_un);
2332 #if defined(HAVE_IPV6)
2333 else if (addr->sa_family == AF_INET6) {
2334 salen = sizeof(struct sockaddr_in6);
2338 return connect(fd, addr, salen);