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
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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 Wrapper for realpath.
542 ********************************************************************/
544 char *sys_realpath(const char *path, char *resolved_path)
546 #if defined(HAVE_REALPATH)
547 return realpath(path, resolved_path);
549 /* As realpath is not a system call we can't return ENOSYS. */
555 /*******************************************************************
556 The wait() calls vary between systems
557 ********************************************************************/
559 int sys_waitpid(pid_t pid,int *status,int options)
562 return waitpid(pid,status,options);
563 #else /* HAVE_WAITPID */
564 return wait4(pid, status, options, NULL);
565 #endif /* HAVE_WAITPID */
568 /*******************************************************************
569 System wrapper for getwd
570 ********************************************************************/
572 char *sys_getwd(char *s)
576 wd = (char *)getcwd(s, sizeof (pstring));
578 wd = (char *)getwd(s);
583 /*******************************************************************
584 system wrapper for symlink
585 ********************************************************************/
587 int sys_symlink(const char *oldpath, const char *newpath)
593 return symlink(oldpath, newpath);
597 /*******************************************************************
598 system wrapper for readlink
599 ********************************************************************/
601 int sys_readlink(const char *path, char *buf, size_t bufsiz)
603 #ifndef HAVE_READLINK
607 return readlink(path, buf, bufsiz);
611 /*******************************************************************
612 system wrapper for link
613 ********************************************************************/
615 int sys_link(const char *oldpath, const char *newpath)
621 return link(oldpath, newpath);
625 /*******************************************************************
626 chown isn't used much but OS/2 doesn't have it
627 ********************************************************************/
629 int sys_chown(const char *fname,uid_t uid,gid_t gid)
634 DEBUG(1,("WARNING: no chown!\n"));
640 return(chown(fname,uid,gid));
644 /*******************************************************************
645 os/2 also doesn't have chroot
646 ********************************************************************/
647 int sys_chroot(const char *dname)
652 DEBUG(1,("WARNING: no chroot!\n"));
658 return(chroot(dname));
662 /**************************************************************************
663 A wrapper for gethostbyname() that tries avoids looking up hostnames
664 in the root domain, which can cause dial-on-demand links to come up for no
666 ****************************************************************************/
668 struct hostent *sys_gethostbyname(const char *name)
670 #ifdef REDUCE_ROOT_DNS_LOOKUPS
671 char query[256], hostname[256];
674 /* Does this name have any dots in it? If so, make no change */
676 if (strchr_m(name, '.'))
677 return(gethostbyname(name));
679 /* Get my hostname, which should have domain name
680 attached. If not, just do the gethostname on the
684 gethostname(hostname, sizeof(hostname) - 1);
685 hostname[sizeof(hostname) - 1] = 0;
686 if ((domain = strchr_m(hostname, '.')) == NULL)
687 return(gethostbyname(name));
689 /* Attach domain name to query and do modified query.
690 If names too large, just do gethostname on the
694 if((strlen(name) + strlen(domain)) >= sizeof(query))
695 return(gethostbyname(name));
697 slprintf(query, sizeof(query)-1, "%s%s", name, domain);
698 return(gethostbyname(query));
699 #else /* REDUCE_ROOT_DNS_LOOKUPS */
700 return(gethostbyname(name));
701 #endif /* REDUCE_ROOT_DNS_LOOKUPS */
705 #if defined(HAVE_POSIX_CAPABILITIES)
707 #ifdef HAVE_SYS_CAPABILITY_H
709 #if defined(BROKEN_REDHAT_7_SYSTEM_HEADERS) && !defined(_I386_STATFS_H) && !defined(_PPC_STATFS_H)
710 #define _I386_STATFS_H
711 #define _PPC_STATFS_H
712 #define BROKEN_REDHAT_7_STATFS_WORKAROUND
715 #include <sys/capability.h>
717 #ifdef BROKEN_REDHAT_7_STATFS_WORKAROUND
718 #undef _I386_STATFS_H
720 #undef BROKEN_REDHAT_7_STATFS_WORKAROUND
723 #endif /* HAVE_SYS_CAPABILITY_H */
725 /**************************************************************************
726 Try and abstract process capabilities (for systems that have them).
727 ****************************************************************************/
729 /* Set the POSIX capabilities needed for the given purpose into the effective
730 * capability set of the current process. Make sure they are always removed
731 * from the inheritable set, because there is no circumstance in which our
732 * children should inherit our elevated privileges.
734 static BOOL set_process_capability(enum smbd_capability capability,
737 cap_value_t cap_vals[2] = {0};
738 int num_cap_vals = 0;
742 #if defined(HAVE_PRCTL) && defined(PR_GET_KEEPCAPS) && defined(PR_SET_KEEPCAPS)
743 /* On Linux, make sure that any capabilities we grab are sticky
744 * across UID changes. We expect that this would allow us to keep both
745 * the effective and permitted capability sets, but as of circa 2.6.16,
746 * only the permitted set is kept. It is a bug (which we work around)
747 * that the effective set is lost, but we still require the effective
750 if (!prctl(PR_GET_KEEPCAPS)) {
751 prctl(PR_SET_KEEPCAPS, 1);
755 cap = cap_get_proc();
757 DEBUG(0,("set_process_capability: cap_get_proc failed: %s\n",
762 switch (capability) {
763 case KERNEL_OPLOCK_CAPABILITY:
764 #ifdef CAP_NETWORK_MGT
765 /* IRIX has CAP_NETWORK_MGT for oplocks. */
766 cap_vals[num_cap_vals++] = CAP_NETWORK_MGT;
769 case DMAPI_ACCESS_CAPABILITY:
770 #ifdef CAP_DEVICE_MGT
771 /* IRIX has CAP_DEVICE_MGT for DMAPI access. */
772 cap_vals[num_cap_vals++] = CAP_DEVICE_MGT;
774 /* Linux has CAP_MKNOD for DMAPI access. */
775 cap_vals[num_cap_vals++] = CAP_MKNOD;
780 SMB_ASSERT(num_cap_vals <= ARRAY_SIZE(cap_vals));
782 if (num_cap_vals == 0) {
787 cap_set_flag(cap, CAP_EFFECTIVE, num_cap_vals, cap_vals,
788 enable ? CAP_SET : CAP_CLEAR);
790 /* We never want to pass capabilities down to our children, so make
791 * sure they are not inherited.
793 cap_set_flag(cap, CAP_INHERITABLE, num_cap_vals, cap_vals, CAP_CLEAR);
795 if (cap_set_proc(cap) == -1) {
796 DEBUG(0, ("set_process_capability: cap_set_proc failed: %s\n",
806 #endif /* HAVE_POSIX_CAPABILITIES */
808 /****************************************************************************
809 Gain the oplock capability from the kernel if possible.
810 ****************************************************************************/
812 void set_effective_capability(enum smbd_capability capability)
814 #if defined(HAVE_POSIX_CAPABILITIES)
815 set_process_capability(capability, True);
816 #endif /* HAVE_POSIX_CAPABILITIES */
819 void drop_effective_capability(enum smbd_capability capability)
821 #if defined(HAVE_POSIX_CAPABILITIES)
822 set_process_capability(capability, False);
823 #endif /* HAVE_POSIX_CAPABILITIES */
826 /**************************************************************************
827 Wrapper for random().
828 ****************************************************************************/
830 long sys_random(void)
832 #if defined(HAVE_RANDOM)
833 return (long)random();
834 #elif defined(HAVE_RAND)
837 DEBUG(0,("Error - no random function available !\n"));
842 /**************************************************************************
843 Wrapper for srandom().
844 ****************************************************************************/
846 void sys_srandom(unsigned int seed)
848 #if defined(HAVE_SRANDOM)
850 #elif defined(HAVE_SRAND)
853 DEBUG(0,("Error - no srandom function available !\n"));
858 /**************************************************************************
859 Returns equivalent to NGROUPS_MAX - using sysconf if needed.
860 ****************************************************************************/
864 #if defined(SYSCONF_SC_NGROUPS_MAX)
865 int ret = sysconf(_SC_NGROUPS_MAX);
866 return (ret == -1) ? NGROUPS_MAX : ret;
872 /**************************************************************************
873 Wrapper for getgroups. Deals with broken (int) case.
874 ****************************************************************************/
876 int sys_getgroups(int setlen, gid_t *gidset)
878 #if !defined(HAVE_BROKEN_GETGROUPS)
879 return getgroups(setlen, gidset);
887 return getgroups(setlen, &gid);
891 * Broken case. We need to allocate a
892 * GID_T array of size setlen.
901 setlen = groups_max();
903 if((group_list = (GID_T *)malloc(setlen * sizeof(GID_T))) == NULL) {
904 DEBUG(0,("sys_getgroups: Malloc fail.\n"));
908 if((ngroups = getgroups(setlen, group_list)) < 0) {
909 int saved_errno = errno;
910 SAFE_FREE(group_list);
915 for(i = 0; i < ngroups; i++)
916 gidset[i] = (gid_t)group_list[i];
918 SAFE_FREE(group_list);
920 #endif /* HAVE_BROKEN_GETGROUPS */
924 /**************************************************************************
925 Wrapper for setgroups. Deals with broken (int) case. Automatically used
926 if we have broken getgroups.
927 ****************************************************************************/
929 int sys_setgroups(int setlen, gid_t *gidset)
931 #if !defined(HAVE_SETGROUPS)
934 #endif /* HAVE_SETGROUPS */
936 #if !defined(HAVE_BROKEN_GETGROUPS)
937 return setgroups(setlen, gidset);
946 if (setlen < 0 || setlen > groups_max()) {
952 * Broken case. We need to allocate a
953 * GID_T array of size setlen.
956 if((group_list = (GID_T *)malloc(setlen * sizeof(GID_T))) == NULL) {
957 DEBUG(0,("sys_setgroups: Malloc fail.\n"));
961 for(i = 0; i < setlen; i++)
962 group_list[i] = (GID_T) gidset[i];
964 if(setgroups(setlen, group_list) != 0) {
965 int saved_errno = errno;
966 SAFE_FREE(group_list);
971 SAFE_FREE(group_list);
973 #endif /* HAVE_BROKEN_GETGROUPS */
976 /**************************************************************************
977 Wrappers for setpwent(), getpwent() and endpwent()
978 ****************************************************************************/
980 void sys_setpwent(void)
985 struct passwd *sys_getpwent(void)
990 void sys_endpwent(void)
995 /**************************************************************************
996 Wrappers for getpwnam(), getpwuid(), getgrnam(), getgrgid()
997 ****************************************************************************/
999 #ifdef ENABLE_BUILD_FARM_HACKS
1002 * In the build farm we want to be able to join machines to the domain. As we
1003 * don't have root access, we need to bypass direct access to /etc/passwd
1004 * after a user has been created via samr. Fake those users.
1007 static struct passwd *fake_pwd;
1008 static int num_fake_pwd;
1010 struct passwd *sys_getpwnam(const char *name)
1014 for (i=0; i<num_fake_pwd; i++) {
1015 if (strcmp(fake_pwd[i].pw_name, name) == 0) {
1016 DEBUG(10, ("Returning fake user %s\n", name));
1017 return &fake_pwd[i];
1021 return getpwnam(name);
1024 struct passwd *sys_getpwuid(uid_t uid)
1028 for (i=0; i<num_fake_pwd; i++) {
1029 if (fake_pwd[i].pw_uid == uid) {
1030 DEBUG(10, ("Returning fake user %s\n",
1031 fake_pwd[i].pw_name));
1032 return &fake_pwd[i];
1036 return getpwuid(uid);
1039 void faked_create_user(const char *name)
1043 struct passwd new_pwd;
1045 for (i=0; i<10; i++) {
1046 generate_random_buffer((unsigned char *)&uid,
1048 if (getpwuid(uid) == NULL) {
1054 /* Weird. No free uid found... */
1058 new_pwd.pw_name = SMB_STRDUP(name);
1059 new_pwd.pw_passwd = SMB_STRDUP("x");
1060 new_pwd.pw_uid = uid;
1061 new_pwd.pw_gid = 100;
1062 new_pwd.pw_gecos = SMB_STRDUP("faked user");
1063 new_pwd.pw_dir = SMB_STRDUP("/nodir");
1064 new_pwd.pw_shell = SMB_STRDUP("/bin/false");
1066 ADD_TO_ARRAY(NULL, struct passwd, new_pwd, &fake_pwd,
1069 DEBUG(10, ("Added fake user %s, have %d fake users\n",
1070 name, num_fake_pwd));
1075 struct passwd *sys_getpwnam(const char *name)
1077 return getpwnam(name);
1080 struct passwd *sys_getpwuid(uid_t uid)
1082 return getpwuid(uid);
1087 struct group *sys_getgrnam(const char *name)
1089 return getgrnam(name);
1092 struct group *sys_getgrgid(gid_t gid)
1094 return getgrgid(gid);
1097 #if 0 /* NOT CURRENTLY USED - JRA */
1098 /**************************************************************************
1099 The following are the UNICODE versions of *all* system interface functions
1100 called within Samba. Ok, ok, the exceptions are the gethostbyXX calls,
1101 which currently are left as ascii as they are not used other than in name
1103 ****************************************************************************/
1105 /**************************************************************************
1106 Wide stat. Just narrow and call sys_xxx.
1107 ****************************************************************************/
1109 int wsys_stat(const smb_ucs2_t *wfname,SMB_STRUCT_STAT *sbuf)
1112 return sys_stat(unicode_to_unix(fname,wfname,sizeof(fname)), sbuf);
1115 /**************************************************************************
1116 Wide lstat. Just narrow and call sys_xxx.
1117 ****************************************************************************/
1119 int wsys_lstat(const smb_ucs2_t *wfname,SMB_STRUCT_STAT *sbuf)
1122 return sys_lstat(unicode_to_unix(fname,wfname,sizeof(fname)), sbuf);
1125 /**************************************************************************
1126 Wide creat. Just narrow and call sys_xxx.
1127 ****************************************************************************/
1129 int wsys_creat(const smb_ucs2_t *wfname, mode_t mode)
1132 return sys_creat(unicode_to_unix(fname,wfname,sizeof(fname)), mode);
1135 /**************************************************************************
1136 Wide open. Just narrow and call sys_xxx.
1137 ****************************************************************************/
1139 int wsys_open(const smb_ucs2_t *wfname, int oflag, mode_t mode)
1142 return sys_open(unicode_to_unix(fname,wfname,sizeof(fname)), oflag, mode);
1145 /**************************************************************************
1146 Wide fopen. Just narrow and call sys_xxx.
1147 ****************************************************************************/
1149 FILE *wsys_fopen(const smb_ucs2_t *wfname, const char *type)
1152 return sys_fopen(unicode_to_unix(fname,wfname,sizeof(fname)), type);
1155 /**************************************************************************
1156 Wide opendir. Just narrow and call sys_xxx.
1157 ****************************************************************************/
1159 SMB_STRUCT_DIR *wsys_opendir(const smb_ucs2_t *wfname)
1162 return opendir(unicode_to_unix(fname,wfname,sizeof(fname)));
1165 /**************************************************************************
1166 Wide readdir. Return a structure pointer containing a wide filename.
1167 ****************************************************************************/
1169 SMB_STRUCT_WDIRENT *wsys_readdir(SMB_STRUCT_DIR *dirp)
1171 static SMB_STRUCT_WDIRENT retval;
1172 SMB_STRUCT_DIRENT *dirval = sys_readdir(dirp);
1178 * The only POSIX defined member of this struct is d_name.
1181 unix_to_unicode(retval.d_name,dirval->d_name,sizeof(retval.d_name));
1186 /**************************************************************************
1187 Wide getwd. Call sys_xxx and widen. Assumes s points to a wpstring.
1188 ****************************************************************************/
1190 smb_ucs2_t *wsys_getwd(smb_ucs2_t *s)
1193 char *p = sys_getwd(fname);
1198 return unix_to_unicode(s, p, sizeof(wpstring));
1201 /**************************************************************************
1202 Wide chown. Just narrow and call sys_xxx.
1203 ****************************************************************************/
1205 int wsys_chown(const smb_ucs2_t *wfname, uid_t uid, gid_t gid)
1208 return chown(unicode_to_unix(fname,wfname,sizeof(fname)), uid, gid);
1211 /**************************************************************************
1212 Wide chroot. Just narrow and call sys_xxx.
1213 ****************************************************************************/
1215 int wsys_chroot(const smb_ucs2_t *wfname)
1218 return chroot(unicode_to_unix(fname,wfname,sizeof(fname)));
1221 /**************************************************************************
1222 Wide getpwnam. Return a structure pointer containing wide names.
1223 ****************************************************************************/
1225 SMB_STRUCT_WPASSWD *wsys_getpwnam(const smb_ucs2_t *wname)
1227 static SMB_STRUCT_WPASSWD retval;
1229 struct passwd *pwret = sys_getpwnam(unicode_to_unix(name,wname,sizeof(name)));
1234 unix_to_unicode(retval.pw_name, pwret->pw_name, sizeof(retval.pw_name));
1235 retval.pw_passwd = pwret->pw_passwd;
1236 retval.pw_uid = pwret->pw_uid;
1237 retval.pw_gid = pwret->pw_gid;
1238 unix_to_unicode(retval.pw_gecos, pwret->pw_gecos, sizeof(retval.pw_gecos));
1239 unix_to_unicode(retval.pw_dir, pwret->pw_dir, sizeof(retval.pw_dir));
1240 unix_to_unicode(retval.pw_shell, pwret->pw_shell, sizeof(retval.pw_shell));
1245 /**************************************************************************
1246 Wide getpwuid. Return a structure pointer containing wide names.
1247 ****************************************************************************/
1249 SMB_STRUCT_WPASSWD *wsys_getpwuid(uid_t uid)
1251 static SMB_STRUCT_WPASSWD retval;
1252 struct passwd *pwret = sys_getpwuid(uid);
1257 unix_to_unicode(retval.pw_name, pwret->pw_name, sizeof(retval.pw_name));
1258 retval.pw_passwd = pwret->pw_passwd;
1259 retval.pw_uid = pwret->pw_uid;
1260 retval.pw_gid = pwret->pw_gid;
1261 unix_to_unicode(retval.pw_gecos, pwret->pw_gecos, sizeof(retval.pw_gecos));
1262 unix_to_unicode(retval.pw_dir, pwret->pw_dir, sizeof(retval.pw_dir));
1263 unix_to_unicode(retval.pw_shell, pwret->pw_shell, sizeof(retval.pw_shell));
1267 #endif /* NOT CURRENTLY USED - JRA */
1269 /**************************************************************************
1270 Extract a command into an arg list. Uses a static pstring for storage.
1271 Caller frees returned arg list (which contains pointers into the static pstring).
1272 ****************************************************************************/
1274 static char **extract_args(const char *command)
1276 static pstring trunc_cmd;
1282 pstrcpy(trunc_cmd, command);
1284 if(!(ptr = strtok(trunc_cmd, " \t"))) {
1293 for( argcl = 1; ptr; ptr = strtok(NULL, " \t"))
1296 if((argl = (char **)SMB_MALLOC((argcl + 1) * sizeof(char *))) == NULL)
1300 * Now do the extraction.
1303 pstrcpy(trunc_cmd, command);
1305 ptr = strtok(trunc_cmd, " \t");
1309 while((ptr = strtok(NULL, " \t")) != NULL)
1316 /**************************************************************************
1317 Wrapper for fork. Ensures that mypid is reset. Used so we can write
1318 a sys_getpid() that only does a system call *once*.
1319 ****************************************************************************/
1321 static pid_t mypid = (pid_t)-1;
1323 pid_t sys_fork(void)
1325 pid_t forkret = fork();
1327 if (forkret == (pid_t)0) /* Child - reset mypid so sys_getpid does a system call. */
1333 /**************************************************************************
1334 Wrapper for getpid. Ensures we only do a system call *once*.
1335 ****************************************************************************/
1337 pid_t sys_getpid(void)
1339 if (mypid == (pid_t)-1)
1345 /**************************************************************************
1346 Wrapper for popen. Safer as it doesn't search a path.
1347 Modified from the glibc sources.
1348 modified by tridge to return a file descriptor. We must kick our FILE* habit
1349 ****************************************************************************/
1351 typedef struct _popen_list
1355 struct _popen_list *next;
1358 static popen_list *popen_chain;
1360 int sys_popen(const char *command)
1362 int parent_end, child_end;
1364 popen_list *entry = NULL;
1367 if (pipe(pipe_fds) < 0)
1370 parent_end = pipe_fds[0];
1371 child_end = pipe_fds[1];
1378 if((entry = SMB_MALLOC_P(popen_list)) == NULL)
1381 ZERO_STRUCTP(entry);
1384 * Extract the command and args into a NULL terminated array.
1387 if(!(argl = extract_args(command)))
1390 entry->child_pid = sys_fork();
1392 if (entry->child_pid == -1) {
1396 if (entry->child_pid == 0) {
1402 int child_std_end = STDOUT_FILENO;
1406 if (child_end != child_std_end) {
1407 dup2 (child_end, child_std_end);
1412 * POSIX.2: "popen() shall ensure that any streams from previous
1413 * popen() calls that remain open in the parent process are closed
1414 * in the new child process."
1417 for (p = popen_chain; p; p = p->next)
1420 execv(argl[0], argl);
1431 /* Link into popen_chain. */
1432 entry->next = popen_chain;
1433 popen_chain = entry;
1434 entry->fd = parent_end;
1447 /**************************************************************************
1448 Wrapper for pclose. Modified from the glibc sources.
1449 ****************************************************************************/
1451 int sys_pclose(int fd)
1454 popen_list **ptr = &popen_chain;
1455 popen_list *entry = NULL;
1459 /* Unlink from popen_chain. */
1460 for ( ; *ptr != NULL; ptr = &(*ptr)->next) {
1461 if ((*ptr)->fd == fd) {
1463 *ptr = (*ptr)->next;
1469 if (status < 0 || close(entry->fd) < 0)
1473 * As Samba is catching and eating child process
1474 * exits we don't really care about the child exit
1475 * code, a -1 with errno = ECHILD will do fine for us.
1479 wait_pid = sys_waitpid (entry->child_pid, &wstatus, 0);
1480 } while (wait_pid == -1 && errno == EINTR);
1489 /**************************************************************************
1490 Wrappers for dlopen, dlsym, dlclose.
1491 ****************************************************************************/
1493 void *sys_dlopen(const char *name, int flags)
1495 #if defined(HAVE_DLOPEN)
1496 return dlopen(name, flags);
1502 void *sys_dlsym(void *handle, const char *symbol)
1504 #if defined(HAVE_DLSYM)
1505 return dlsym(handle, symbol);
1511 int sys_dlclose (void *handle)
1513 #if defined(HAVE_DLCLOSE)
1514 return dlclose(handle);
1520 const char *sys_dlerror(void)
1522 #if defined(HAVE_DLERROR)
1529 int sys_dup2(int oldfd, int newfd)
1531 #if defined(HAVE_DUP2)
1532 return dup2(oldfd, newfd);
1539 /**************************************************************************
1540 Wrapper for Admin Logs.
1541 ****************************************************************************/
1543 void sys_adminlog(int priority, const char *format_str, ...)
1547 char *msgbuf = NULL;
1549 va_start( ap, format_str );
1550 ret = vasprintf( &msgbuf, format_str, ap );
1556 #if defined(HAVE_SYSLOG)
1557 syslog( priority, "%s", msgbuf );
1559 DEBUG(0,("%s", msgbuf ));
1564 /**************************************************************************
1565 Wrappers for extented attribute calls. Based on the Linux package with
1566 support for IRIX and (Net|Free)BSD also. Expand as other systems have them.
1567 ****************************************************************************/
1569 ssize_t sys_getxattr (const char *path, const char *name, void *value, size_t size)
1571 #if defined(HAVE_GETXATTR)
1572 #ifndef XATTR_ADD_OPT
1573 return getxattr(path, name, value, size);
1576 return getxattr(path, name, value, size, 0, options);
1578 #elif defined(HAVE_GETEA)
1579 return getea(path, name, value, size);
1580 #elif defined(HAVE_EXTATTR_GET_FILE)
1583 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1584 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1585 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1587 * The BSD implementation has a nasty habit of silently truncating
1588 * the returned value to the size of the buffer, so we have to check
1589 * that the buffer is large enough to fit the returned value.
1591 if((retval=extattr_get_file(path, attrnamespace, attrname, NULL, 0)) >= 0) {
1596 if((retval=extattr_get_file(path, attrnamespace, attrname, value, size)) >= 0)
1600 DEBUG(10,("sys_getxattr: extattr_get_file() failed with: %s\n", strerror(errno)));
1602 #elif defined(HAVE_ATTR_GET)
1603 int retval, flags = 0;
1604 int valuelength = (int)size;
1605 char *attrname = strchr(name,'.') + 1;
1607 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1609 retval = attr_get(path, attrname, (char *)value, &valuelength, flags);
1611 return retval ? retval : valuelength;
1618 ssize_t sys_lgetxattr (const char *path, const char *name, void *value, size_t size)
1620 #if defined(HAVE_LGETXATTR)
1621 return lgetxattr(path, name, value, size);
1622 #elif defined(HAVE_GETXATTR) && defined(XATTR_ADD_OPT)
1623 int options = XATTR_NOFOLLOW;
1624 return getxattr(path, name, value, size, 0, options);
1625 #elif defined(HAVE_LGETEA)
1626 return lgetea(path, name, value, size);
1627 #elif defined(HAVE_EXTATTR_GET_LINK)
1630 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1631 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1632 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1634 if((retval=extattr_get_link(path, attrnamespace, attrname, NULL, 0)) >= 0) {
1639 if((retval=extattr_get_link(path, attrnamespace, attrname, value, size)) >= 0)
1643 DEBUG(10,("sys_lgetxattr: extattr_get_link() failed with: %s\n", strerror(errno)));
1645 #elif defined(HAVE_ATTR_GET)
1646 int retval, flags = ATTR_DONTFOLLOW;
1647 int valuelength = (int)size;
1648 char *attrname = strchr(name,'.') + 1;
1650 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1652 retval = attr_get(path, attrname, (char *)value, &valuelength, flags);
1654 return retval ? retval : valuelength;
1661 ssize_t sys_fgetxattr (int filedes, const char *name, void *value, size_t size)
1663 #if defined(HAVE_FGETXATTR)
1664 #ifndef XATTR_ADD_OPT
1665 return fgetxattr(filedes, name, value, size);
1668 return fgetxattr(filedes, name, value, size, 0, options);
1670 #elif defined(HAVE_FGETEA)
1671 return fgetea(filedes, name, value, size);
1672 #elif defined(HAVE_EXTATTR_GET_FD)
1675 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1676 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1677 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1679 if((retval=extattr_get_fd(filedes, attrnamespace, attrname, NULL, 0)) >= 0) {
1684 if((retval=extattr_get_fd(filedes, attrnamespace, attrname, value, size)) >= 0)
1688 DEBUG(10,("sys_fgetxattr: extattr_get_fd() failed with: %s\n", strerror(errno)));
1690 #elif defined(HAVE_ATTR_GETF)
1691 int retval, flags = 0;
1692 int valuelength = (int)size;
1693 char *attrname = strchr(name,'.') + 1;
1695 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1697 retval = attr_getf(filedes, attrname, (char *)value, &valuelength, flags);
1699 return retval ? retval : valuelength;
1706 #if defined(HAVE_EXTATTR_LIST_FILE)
1708 #define EXTATTR_PREFIX(s) (s), (sizeof((s))-1)
1716 { EXTATTR_NAMESPACE_SYSTEM, EXTATTR_PREFIX("system.") },
1717 { EXTATTR_NAMESPACE_USER, EXTATTR_PREFIX("user.") },
1725 static ssize_t bsd_attr_list (int type, extattr_arg arg, char *list, size_t size)
1727 ssize_t list_size, total_size = 0;
1730 /* Iterate through extattr(2) namespaces */
1731 for(t = 0; t < (sizeof(extattr)/sizeof(extattr[0])); t++) {
1733 #if defined(HAVE_EXTATTR_LIST_FILE)
1735 list_size = extattr_list_file(arg.path, extattr[t].space, list, size);
1738 #if defined(HAVE_EXTATTR_LIST_LINK)
1740 list_size = extattr_list_link(arg.path, extattr[t].space, list, size);
1743 #if defined(HAVE_EXTATTR_LIST_FD)
1745 list_size = extattr_list_fd(arg.filedes, extattr[t].space, list, size);
1752 /* Some error happend. Errno should be set by the previous call */
1758 /* XXX: Call with an empty buffer may be used to calculate
1759 necessary buffer size. Unfortunately, we can't say, how
1760 many attributes were returned, so here is the potential
1761 problem with the emulation.
1764 /* Take the worse case of one char attribute names -
1765 two bytes per name plus one more for sanity.
1767 total_size += list_size + (list_size/2 + 1)*extattr[t].len;
1770 /* Count necessary offset to fit namespace prefixes */
1772 for(i = 0; i < list_size; i += list[i] + 1)
1773 len += extattr[t].len;
1775 total_size += list_size + len;
1776 /* Buffer is too small to fit the results */
1777 if(total_size > size) {
1781 /* Shift results back, so we can prepend prefixes */
1782 buf = memmove(list + len, list, list_size);
1784 for(i = 0; i < list_size; i += len + 1) {
1786 strncpy(list, extattr[t].name, extattr[t].len + 1);
1787 list += extattr[t].len;
1788 strncpy(list, buf + i + 1, len);
1799 #if defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
1800 static char attr_buffer[ATTR_MAX_VALUELEN];
1802 static ssize_t irix_attr_list(const char *path, int filedes, char *list, size_t size, int flags)
1804 int retval = 0, index;
1805 attrlist_cursor_t *cursor = 0;
1807 attrlist_t * al = (attrlist_t *)attr_buffer;
1809 size_t ent_size, left = size;
1814 retval = attr_listf(filedes, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
1816 retval = attr_list(path, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
1818 for (index = 0; index < al->al_count; index++) {
1819 ae = ATTR_ENTRY(attr_buffer, index);
1820 ent_size = strlen(ae->a_name) + sizeof("user.");
1821 if (left >= ent_size) {
1822 strncpy(bp, "user.", sizeof("user."));
1823 strncat(bp, ae->a_name, ent_size - sizeof("user."));
1831 total_size += ent_size;
1833 if (al->al_more == 0) break;
1840 retval = attr_listf(filedes, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
1842 retval = attr_list(path, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
1844 for (index = 0; index < al->al_count; index++) {
1845 ae = ATTR_ENTRY(attr_buffer, index);
1846 ent_size = strlen(ae->a_name) + sizeof("system.");
1847 if (left >= ent_size) {
1848 strncpy(bp, "system.", sizeof("system."));
1849 strncat(bp, ae->a_name, ent_size - sizeof("system."));
1857 total_size += ent_size;
1859 if (al->al_more == 0) break;
1862 return (ssize_t)(retval ? retval : total_size);
1867 ssize_t sys_listxattr (const char *path, char *list, size_t size)
1869 #if defined(HAVE_LISTXATTR)
1870 #ifndef XATTR_ADD_OPT
1871 return listxattr(path, list, size);
1874 return listxattr(path, list, size, options);
1876 #elif defined(HAVE_LISTEA)
1877 return listea(path, list, size);
1878 #elif defined(HAVE_EXTATTR_LIST_FILE)
1881 return bsd_attr_list(0, arg, list, size);
1882 #elif defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
1883 return irix_attr_list(path, 0, list, size, 0);
1890 ssize_t sys_llistxattr (const char *path, char *list, size_t size)
1892 #if defined(HAVE_LLISTXATTR)
1893 return llistxattr(path, list, size);
1894 #elif defined(HAVE_LISTXATTR) && defined(XATTR_ADD_OPT)
1895 int options = XATTR_NOFOLLOW;
1896 return listxattr(path, list, size, options);
1897 #elif defined(HAVE_LLISTEA)
1898 return llistea(path, list, size);
1899 #elif defined(HAVE_EXTATTR_LIST_LINK)
1902 return bsd_attr_list(1, arg, list, size);
1903 #elif defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
1904 return irix_attr_list(path, 0, list, size, ATTR_DONTFOLLOW);
1911 ssize_t sys_flistxattr (int filedes, char *list, size_t size)
1913 #if defined(HAVE_FLISTXATTR)
1914 #ifndef XATTR_ADD_OPT
1915 return flistxattr(filedes, list, size);
1918 return flistxattr(filedes, list, size, options);
1920 #elif defined(HAVE_FLISTEA)
1921 return flistea(filedes, list, size);
1922 #elif defined(HAVE_EXTATTR_LIST_FD)
1924 arg.filedes = filedes;
1925 return bsd_attr_list(2, arg, list, size);
1926 #elif defined(HAVE_ATTR_LISTF)
1927 return irix_attr_list(NULL, filedes, list, size, 0);
1934 int sys_removexattr (const char *path, const char *name)
1936 #if defined(HAVE_REMOVEXATTR)
1937 #ifndef XATTR_ADD_OPT
1938 return removexattr(path, name);
1941 return removexattr(path, name, options);
1943 #elif defined(HAVE_REMOVEEA)
1944 return removeea(path, name);
1945 #elif defined(HAVE_EXTATTR_DELETE_FILE)
1947 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1948 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1949 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1951 return extattr_delete_file(path, attrnamespace, attrname);
1952 #elif defined(HAVE_ATTR_REMOVE)
1954 char *attrname = strchr(name,'.') + 1;
1956 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1958 return attr_remove(path, attrname, flags);
1965 int sys_lremovexattr (const char *path, const char *name)
1967 #if defined(HAVE_LREMOVEXATTR)
1968 return lremovexattr(path, name);
1969 #elif defined(HAVE_REMOVEXATTR) && defined(XATTR_ADD_OPT)
1970 int options = XATTR_NOFOLLOW;
1971 return removexattr(path, name, options);
1972 #elif defined(HAVE_LREMOVEEA)
1973 return lremoveea(path, name);
1974 #elif defined(HAVE_EXTATTR_DELETE_LINK)
1976 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1977 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1978 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1980 return extattr_delete_link(path, attrnamespace, attrname);
1981 #elif defined(HAVE_ATTR_REMOVE)
1982 int flags = ATTR_DONTFOLLOW;
1983 char *attrname = strchr(name,'.') + 1;
1985 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1987 return attr_remove(path, attrname, flags);
1994 int sys_fremovexattr (int filedes, const char *name)
1996 #if defined(HAVE_FREMOVEXATTR)
1997 #ifndef XATTR_ADD_OPT
1998 return fremovexattr(filedes, name);
2001 return fremovexattr(filedes, name, options);
2003 #elif defined(HAVE_FREMOVEEA)
2004 return fremoveea(filedes, name);
2005 #elif defined(HAVE_EXTATTR_DELETE_FD)
2007 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
2008 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
2009 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
2011 return extattr_delete_fd(filedes, attrnamespace, attrname);
2012 #elif defined(HAVE_ATTR_REMOVEF)
2014 char *attrname = strchr(name,'.') + 1;
2016 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
2018 return attr_removef(filedes, attrname, flags);
2025 #if !defined(HAVE_SETXATTR)
2026 #define XATTR_CREATE 0x1 /* set value, fail if attr already exists */
2027 #define XATTR_REPLACE 0x2 /* set value, fail if attr does not exist */
2030 int sys_setxattr (const char *path, const char *name, const void *value, size_t size, int flags)
2032 #if defined(HAVE_SETXATTR)
2033 #ifndef XATTR_ADD_OPT
2034 return setxattr(path, name, value, size, flags);
2037 return setxattr(path, name, value, size, 0, options);
2039 #elif defined(HAVE_SETEA)
2040 return setea(path, name, value, size, flags);
2041 #elif defined(HAVE_EXTATTR_SET_FILE)
2044 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
2045 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
2046 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
2048 /* Check attribute existence */
2049 retval = extattr_get_file(path, attrnamespace, attrname, NULL, 0);
2051 /* REPLACE attribute, that doesn't exist */
2052 if (flags & XATTR_REPLACE && errno == ENOATTR) {
2056 /* Ignore other errors */
2059 /* CREATE attribute, that already exists */
2060 if (flags & XATTR_CREATE) {
2066 retval = extattr_set_file(path, attrnamespace, attrname, value, size);
2067 return (retval < 0) ? -1 : 0;
2068 #elif defined(HAVE_ATTR_SET)
2070 char *attrname = strchr(name,'.') + 1;
2072 if (strncmp(name, "system", 6) == 0) myflags |= ATTR_ROOT;
2073 if (flags & XATTR_CREATE) myflags |= ATTR_CREATE;
2074 if (flags & XATTR_REPLACE) myflags |= ATTR_REPLACE;
2076 return attr_set(path, attrname, (const char *)value, size, myflags);
2083 int sys_lsetxattr (const char *path, const char *name, const void *value, size_t size, int flags)
2085 #if defined(HAVE_LSETXATTR)
2086 return lsetxattr(path, name, value, size, flags);
2087 #elif defined(HAVE_SETXATTR) && defined(XATTR_ADD_OPT)
2088 int options = XATTR_NOFOLLOW;
2089 return setxattr(path, name, value, size, 0, options);
2090 #elif defined(LSETEA)
2091 return lsetea(path, name, value, size, flags);
2092 #elif defined(HAVE_EXTATTR_SET_LINK)
2095 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
2096 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
2097 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
2099 /* Check attribute existence */
2100 retval = extattr_get_link(path, attrnamespace, attrname, NULL, 0);
2102 /* REPLACE attribute, that doesn't exist */
2103 if (flags & XATTR_REPLACE && errno == ENOATTR) {
2107 /* Ignore other errors */
2110 /* CREATE attribute, that already exists */
2111 if (flags & XATTR_CREATE) {
2118 retval = extattr_set_link(path, attrnamespace, attrname, value, size);
2119 return (retval < 0) ? -1 : 0;
2120 #elif defined(HAVE_ATTR_SET)
2121 int myflags = ATTR_DONTFOLLOW;
2122 char *attrname = strchr(name,'.') + 1;
2124 if (strncmp(name, "system", 6) == 0) myflags |= ATTR_ROOT;
2125 if (flags & XATTR_CREATE) myflags |= ATTR_CREATE;
2126 if (flags & XATTR_REPLACE) myflags |= ATTR_REPLACE;
2128 return attr_set(path, attrname, (const char *)value, size, myflags);
2135 int sys_fsetxattr (int filedes, const char *name, const void *value, size_t size, int flags)
2137 #if defined(HAVE_FSETXATTR)
2138 #ifndef XATTR_ADD_OPT
2139 return fsetxattr(filedes, name, value, size, flags);
2142 return fsetxattr(filedes, name, value, size, 0, options);
2144 #elif defined(HAVE_FSETEA)
2145 return fsetea(filedes, name, value, size, flags);
2146 #elif defined(HAVE_EXTATTR_SET_FD)
2149 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
2150 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
2151 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
2153 /* Check attribute existence */
2154 retval = extattr_get_fd(filedes, attrnamespace, attrname, NULL, 0);
2156 /* REPLACE attribute, that doesn't exist */
2157 if (flags & XATTR_REPLACE && errno == ENOATTR) {
2161 /* Ignore other errors */
2164 /* CREATE attribute, that already exists */
2165 if (flags & XATTR_CREATE) {
2171 retval = extattr_set_fd(filedes, attrnamespace, attrname, value, size);
2172 return (retval < 0) ? -1 : 0;
2173 #elif defined(HAVE_ATTR_SETF)
2175 char *attrname = strchr(name,'.') + 1;
2177 if (strncmp(name, "system", 6) == 0) myflags |= ATTR_ROOT;
2178 if (flags & XATTR_CREATE) myflags |= ATTR_CREATE;
2179 if (flags & XATTR_REPLACE) myflags |= ATTR_REPLACE;
2181 return attr_setf(filedes, attrname, (const char *)value, size, myflags);
2188 /****************************************************************************
2189 Return the major devicenumber for UNIX extensions.
2190 ****************************************************************************/
2192 uint32 unix_dev_major(SMB_DEV_T dev)
2194 #if defined(HAVE_DEVICE_MAJOR_FN)
2195 return (uint32)major(dev);
2197 return (uint32)(dev >> 8);
2201 /****************************************************************************
2202 Return the minor devicenumber for UNIX extensions.
2203 ****************************************************************************/
2205 uint32 unix_dev_minor(SMB_DEV_T dev)
2207 #if defined(HAVE_DEVICE_MINOR_FN)
2208 return (uint32)minor(dev);
2210 return (uint32)(dev & 0xff);
2214 #if defined(WITH_AIO)
2216 /*******************************************************************
2217 An aio_read wrapper that will deal with 64-bit sizes.
2218 ********************************************************************/
2220 int sys_aio_read(SMB_STRUCT_AIOCB *aiocb)
2222 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_READ64)
2223 return aio_read64(aiocb);
2224 #elif defined(HAVE_AIO_READ)
2225 return aio_read(aiocb);
2232 /*******************************************************************
2233 An aio_write wrapper that will deal with 64-bit sizes.
2234 ********************************************************************/
2236 int sys_aio_write(SMB_STRUCT_AIOCB *aiocb)
2238 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_WRITE64)
2239 return aio_write64(aiocb);
2240 #elif defined(HAVE_AIO_WRITE)
2241 return aio_write(aiocb);
2248 /*******************************************************************
2249 An aio_return wrapper that will deal with 64-bit sizes.
2250 ********************************************************************/
2252 ssize_t sys_aio_return(SMB_STRUCT_AIOCB *aiocb)
2254 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_RETURN64)
2255 return aio_return64(aiocb);
2256 #elif defined(HAVE_AIO_RETURN)
2257 return aio_return(aiocb);
2264 /*******************************************************************
2265 An aio_cancel wrapper that will deal with 64-bit sizes.
2266 ********************************************************************/
2268 int sys_aio_cancel(int fd, SMB_STRUCT_AIOCB *aiocb)
2270 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_CANCEL64)
2271 return aio_cancel64(fd, aiocb);
2272 #elif defined(HAVE_AIO_CANCEL)
2273 return aio_cancel(fd, aiocb);
2280 /*******************************************************************
2281 An aio_error wrapper that will deal with 64-bit sizes.
2282 ********************************************************************/
2284 int sys_aio_error(const SMB_STRUCT_AIOCB *aiocb)
2286 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_ERROR64)
2287 return aio_error64(aiocb);
2288 #elif defined(HAVE_AIO_ERROR)
2289 return aio_error(aiocb);
2296 /*******************************************************************
2297 An aio_fsync wrapper that will deal with 64-bit sizes.
2298 ********************************************************************/
2300 int sys_aio_fsync(int op, SMB_STRUCT_AIOCB *aiocb)
2302 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_FSYNC64)
2303 return aio_fsync64(op, aiocb);
2304 #elif defined(HAVE_AIO_FSYNC)
2305 return aio_fsync(op, aiocb);
2312 /*******************************************************************
2313 An aio_fsync wrapper that will deal with 64-bit sizes.
2314 ********************************************************************/
2316 int sys_aio_suspend(const SMB_STRUCT_AIOCB * const cblist[], int n, const struct timespec *timeout)
2318 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_SUSPEND64)
2319 return aio_suspend64(cblist, n, timeout);
2320 #elif defined(HAVE_AIO_FSYNC)
2321 return aio_suspend(cblist, n, timeout);
2327 #else /* !WITH_AIO */
2329 int sys_aio_read(SMB_STRUCT_AIOCB *aiocb)
2335 int sys_aio_write(SMB_STRUCT_AIOCB *aiocb)
2341 ssize_t sys_aio_return(SMB_STRUCT_AIOCB *aiocb)
2347 int sys_aio_cancel(int fd, SMB_STRUCT_AIOCB *aiocb)
2353 int sys_aio_error(const SMB_STRUCT_AIOCB *aiocb)
2359 int sys_aio_fsync(int op, SMB_STRUCT_AIOCB *aiocb)
2365 int sys_aio_suspend(const SMB_STRUCT_AIOCB * const cblist[], int n, const struct timespec *timeout)
2370 #endif /* WITH_AIO */
2372 int sys_getpeereid( int s, uid_t *uid)
2374 #if defined(HAVE_PEERCRED)
2376 socklen_t cred_len = sizeof(struct ucred);
2379 ret = getsockopt(s, SOL_SOCKET, SO_PEERCRED, (void *)&cred, &cred_len);
2384 if (cred_len != sizeof(struct ucred)) {