--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ Samba system utilities
+ Copyright (C) Andrew Tridgell 1992-1998
+ Copyright (C) Jeremy Allison 1998-2005
+ Copyright (C) Timur Bakeyev 2005
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+/*
+ The idea is that this file will eventually have wrappers around all
+ important system calls in samba. The aims are:
+
+ - to enable easier porting by putting OS dependent stuff in here
+
+ - to allow for hooks into other "pseudo-filesystems"
+
+ - to allow easier integration of things like the japanese extensions
+
+ - to support the philosophy of Samba to expose the features of
+ the OS within the SMB model. In general whatever file/printer/variable
+ expansions/etc make sense to the OS should be acceptable to Samba.
+*/
+
+
+
+/*******************************************************************
+ A wrapper for usleep in case we don't have one.
+********************************************************************/
+
+int sys_usleep(long usecs)
+{
+#ifndef HAVE_USLEEP
+ struct timeval tval;
+#endif
+
+ /*
+ * We need this braindamage as the glibc usleep
+ * is not SPEC1170 complient... grumble... JRA.
+ */
+
+ if(usecs < 0 || usecs > 1000000) {
+ errno = EINVAL;
+ return -1;
+ }
+
+#if HAVE_USLEEP
+ usleep(usecs);
+ return 0;
+#else /* HAVE_USLEEP */
+ /*
+ * Fake it with select...
+ */
+ tval.tv_sec = 0;
+ tval.tv_usec = usecs/1000;
+ select(0,NULL,NULL,NULL,&tval);
+ return 0;
+#endif /* HAVE_USLEEP */
+}
+
+/*******************************************************************
+A read wrapper that will deal with EINTR.
+********************************************************************/
+
+ssize_t sys_read(int fd, void *buf, size_t count)
+{
+ ssize_t ret;
+
+ do {
+ ret = read(fd, buf, count);
+ } while (ret == -1 && errno == EINTR);
+ return ret;
+}
+
+/*******************************************************************
+A write wrapper that will deal with EINTR.
+********************************************************************/
+
+ssize_t sys_write(int fd, const void *buf, size_t count)
+{
+ ssize_t ret;
+
+ do {
+ ret = write(fd, buf, count);
+ } while (ret == -1 && errno == EINTR);
+ return ret;
+}
+
+
+/*******************************************************************
+A pread wrapper that will deal with EINTR and 64-bit file offsets.
+********************************************************************/
+
+#if defined(HAVE_PREAD) || defined(HAVE_PREAD64)
+ssize_t sys_pread(int fd, void *buf, size_t count, SMB_OFF_T off)
+{
+ ssize_t ret;
+
+ do {
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_PREAD64)
+ ret = pread64(fd, buf, count, off);
+#else
+ ret = pread(fd, buf, count, off);
+#endif
+ } while (ret == -1 && errno == EINTR);
+ return ret;
+}
+#endif
+
+/*******************************************************************
+A write wrapper that will deal with EINTR and 64-bit file offsets.
+********************************************************************/
+
+#if defined(HAVE_PWRITE) || defined(HAVE_PWRITE64)
+ssize_t sys_pwrite(int fd, const void *buf, size_t count, SMB_OFF_T off)
+{
+ ssize_t ret;
+
+ do {
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_PWRITE64)
+ ret = pwrite64(fd, buf, count, off);
+#else
+ ret = pwrite(fd, buf, count, off);
+#endif
+ } while (ret == -1 && errno == EINTR);
+ return ret;
+}
+#endif
+
+/*******************************************************************
+A send wrapper that will deal with EINTR.
+********************************************************************/
+
+ssize_t sys_send(int s, const void *msg, size_t len, int flags)
+{
+ ssize_t ret;
+
+ do {
+ ret = send(s, msg, len, flags);
+ } while (ret == -1 && errno == EINTR);
+ return ret;
+}
+
+/*******************************************************************
+A sendto wrapper that will deal with EINTR.
+********************************************************************/
+
+ssize_t sys_sendto(int s, const void *msg, size_t len, int flags, const struct sockaddr *to, socklen_t tolen)
+{
+ ssize_t ret;
+
+ do {
+ ret = sendto(s, msg, len, flags, to, tolen);
+ } while (ret == -1 && errno == EINTR);
+ return ret;
+}
+
+/*******************************************************************
+A recvfrom wrapper that will deal with EINTR.
+********************************************************************/
+
+ssize_t sys_recvfrom(int s, void *buf, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen)
+{
+ ssize_t ret;
+
+ do {
+ ret = recvfrom(s, buf, len, flags, from, fromlen);
+ } while (ret == -1 && errno == EINTR);
+ return ret;
+}
+
+/*******************************************************************
+A fcntl wrapper that will deal with EINTR.
+********************************************************************/
+
+int sys_fcntl_ptr(int fd, int cmd, void *arg)
+{
+ int ret;
+
+ do {
+ ret = fcntl(fd, cmd, arg);
+ } while (ret == -1 && errno == EINTR);
+ return ret;
+}
+
+/*******************************************************************
+A fcntl wrapper that will deal with EINTR.
+********************************************************************/
+
+int sys_fcntl_long(int fd, int cmd, long arg)
+{
+ int ret;
+
+ do {
+ ret = fcntl(fd, cmd, arg);
+ } while (ret == -1 && errno == EINTR);
+ return ret;
+}
+
+/*******************************************************************
+A stat() wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+int sys_stat(const char *fname,SMB_STRUCT_STAT *sbuf)
+{
+ int ret;
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_STAT64)
+ ret = stat64(fname, sbuf);
+#else
+ ret = stat(fname, sbuf);
+#endif
+ /* we always want directories to appear zero size */
+ if (ret == 0 && S_ISDIR(sbuf->st_mode)) sbuf->st_size = 0;
+ return ret;
+}
+
+/*******************************************************************
+ An fstat() wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+int sys_fstat(int fd,SMB_STRUCT_STAT *sbuf)
+{
+ int ret;
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_FSTAT64)
+ ret = fstat64(fd, sbuf);
+#else
+ ret = fstat(fd, sbuf);
+#endif
+ /* we always want directories to appear zero size */
+ if (ret == 0 && S_ISDIR(sbuf->st_mode)) sbuf->st_size = 0;
+ return ret;
+}
+
+/*******************************************************************
+ An lstat() wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+int sys_lstat(const char *fname,SMB_STRUCT_STAT *sbuf)
+{
+ int ret;
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_LSTAT64)
+ ret = lstat64(fname, sbuf);
+#else
+ ret = lstat(fname, sbuf);
+#endif
+ /* we always want directories to appear zero size */
+ if (ret == 0 && S_ISDIR(sbuf->st_mode)) sbuf->st_size = 0;
+ return ret;
+}
+
+/*******************************************************************
+ An ftruncate() wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+int sys_ftruncate(int fd, SMB_OFF_T offset)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_FTRUNCATE64)
+ return ftruncate64(fd, offset);
+#else
+ return ftruncate(fd, offset);
+#endif
+}
+
+/*******************************************************************
+ An lseek() wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+SMB_OFF_T sys_lseek(int fd, SMB_OFF_T offset, int whence)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_LSEEK64)
+ return lseek64(fd, offset, whence);
+#else
+ return lseek(fd, offset, whence);
+#endif
+}
+
+/*******************************************************************
+ An fseek() wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+int sys_fseek(FILE *fp, SMB_OFF_T offset, int whence)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(LARGE_SMB_OFF_T) && defined(HAVE_FSEEK64)
+ return fseek64(fp, offset, whence);
+#elif defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(LARGE_SMB_OFF_T) && defined(HAVE_FSEEKO64)
+ return fseeko64(fp, offset, whence);
+#else
+ return fseek(fp, offset, whence);
+#endif
+}
+
+/*******************************************************************
+ An ftell() wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+SMB_OFF_T sys_ftell(FILE *fp)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(LARGE_SMB_OFF_T) && defined(HAVE_FTELL64)
+ return (SMB_OFF_T)ftell64(fp);
+#elif defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(LARGE_SMB_OFF_T) && defined(HAVE_FTELLO64)
+ return (SMB_OFF_T)ftello64(fp);
+#else
+ return (SMB_OFF_T)ftell(fp);
+#endif
+}
+
+/*******************************************************************
+ A creat() wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+int sys_creat(const char *path, mode_t mode)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_CREAT64)
+ return creat64(path, mode);
+#else
+ /*
+ * If creat64 isn't defined then ensure we call a potential open64.
+ * JRA.
+ */
+ return sys_open(path, O_WRONLY | O_CREAT | O_TRUNC, mode);
+#endif
+}
+
+/*******************************************************************
+ An open() wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+int sys_open(const char *path, int oflag, mode_t mode)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OPEN64)
+ return open64(path, oflag, mode);
+#else
+ return open(path, oflag, mode);
+#endif
+}
+
+/*******************************************************************
+ An fopen() wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+FILE *sys_fopen(const char *path, const char *type)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_FOPEN64)
+ return fopen64(path, type);
+#else
+ return fopen(path, type);
+#endif
+}
+
+/*******************************************************************
+ An opendir wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+SMB_STRUCT_DIR *sys_opendir(const char *name)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OPENDIR64)
+ return opendir64(name);
+#else
+ return opendir(name);
+#endif
+}
+
+/*******************************************************************
+ A readdir wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+SMB_STRUCT_DIRENT *sys_readdir(SMB_STRUCT_DIR *dirp)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_READDIR64)
+ return readdir64(dirp);
+#else
+ return readdir(dirp);
+#endif
+}
+
+/*******************************************************************
+ A seekdir wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+void sys_seekdir(SMB_STRUCT_DIR *dirp, long offset)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_SEEKDIR64)
+ seekdir64(dirp, offset);
+#else
+ seekdir(dirp, offset);
+#endif
+}
+
+/*******************************************************************
+ A telldir wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+long sys_telldir(SMB_STRUCT_DIR *dirp)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_TELLDIR64)
+ return (long)telldir64(dirp);
+#else
+ return (long)telldir(dirp);
+#endif
+}
+
+/*******************************************************************
+ A rewinddir wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+void sys_rewinddir(SMB_STRUCT_DIR *dirp)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_REWINDDIR64)
+ rewinddir64(dirp);
+#else
+ rewinddir(dirp);
+#endif
+}
+
+/*******************************************************************
+ A close wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+int sys_closedir(SMB_STRUCT_DIR *dirp)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_CLOSEDIR64)
+ return closedir64(dirp);
+#else
+ return closedir(dirp);
+#endif
+}
+
+/*******************************************************************
+ An mknod() wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+int sys_mknod(const char *path, mode_t mode, SMB_DEV_T dev)
+{
+#if defined(HAVE_MKNOD) || defined(HAVE_MKNOD64)
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_MKNOD64) && defined(HAVE_DEV64_T)
+ return mknod64(path, mode, dev);
+#else
+ return mknod(path, mode, dev);
+#endif
+#else
+ /* No mknod system call. */
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+/*******************************************************************
+ Wrapper for realpath.
+********************************************************************/
+
+char *sys_realpath(const char *path, char *resolved_path)
+{
+#if defined(HAVE_REALPATH)
+ return realpath(path, resolved_path);
+#else
+ /* As realpath is not a system call we can't return ENOSYS. */
+ errno = EINVAL;
+ return NULL;
+#endif
+}
+
+/*******************************************************************
+The wait() calls vary between systems
+********************************************************************/
+
+int sys_waitpid(pid_t pid,int *status,int options)
+{
+#ifdef HAVE_WAITPID
+ return waitpid(pid,status,options);
+#else /* HAVE_WAITPID */
+ return wait4(pid, status, options, NULL);
+#endif /* HAVE_WAITPID */
+}
+
+/*******************************************************************
+ System wrapper for getwd
+********************************************************************/
+
+char *sys_getwd(char *s)
+{
+ char *wd;
+#ifdef HAVE_GETCWD
+ wd = (char *)getcwd(s, sizeof (pstring));
+#else
+ wd = (char *)getwd(s);
+#endif
+ return wd;
+}
+
+/*******************************************************************
+system wrapper for symlink
+********************************************************************/
+
+int sys_symlink(const char *oldpath, const char *newpath)
+{
+#ifndef HAVE_SYMLINK
+ errno = ENOSYS;
+ return -1;
+#else
+ return symlink(oldpath, newpath);
+#endif
+}
+
+/*******************************************************************
+system wrapper for readlink
+********************************************************************/
+
+int sys_readlink(const char *path, char *buf, size_t bufsiz)
+{
+#ifndef HAVE_READLINK
+ errno = ENOSYS;
+ return -1;
+#else
+ return readlink(path, buf, bufsiz);
+#endif
+}
+
+/*******************************************************************
+system wrapper for link
+********************************************************************/
+
+int sys_link(const char *oldpath, const char *newpath)
+{
+#ifndef HAVE_LINK
+ errno = ENOSYS;
+ return -1;
+#else
+ return link(oldpath, newpath);
+#endif
+}
+
+/*******************************************************************
+chown isn't used much but OS/2 doesn't have it
+********************************************************************/
+
+int sys_chown(const char *fname,uid_t uid,gid_t gid)
+{
+#ifndef HAVE_CHOWN
+ static int done;
+ if (!done) {
+ DEBUG(1,("WARNING: no chown!\n"));
+ done=1;
+ }
+ errno = ENOSYS;
+ return -1;
+#else
+ return(chown(fname,uid,gid));
+#endif
+}
+
+/*******************************************************************
+os/2 also doesn't have chroot
+********************************************************************/
+int sys_chroot(const char *dname)
+{
+#ifndef HAVE_CHROOT
+ static int done;
+ if (!done) {
+ DEBUG(1,("WARNING: no chroot!\n"));
+ done=1;
+ }
+ errno = ENOSYS;
+ return -1;
+#else
+ return(chroot(dname));
+#endif
+}
+
+/**************************************************************************
+A wrapper for gethostbyname() that tries avoids looking up hostnames
+in the root domain, which can cause dial-on-demand links to come up for no
+apparent reason.
+****************************************************************************/
+
+struct hostent *sys_gethostbyname(const char *name)
+{
+#ifdef REDUCE_ROOT_DNS_LOOKUPS
+ char query[256], hostname[256];
+ char *domain;
+
+ /* Does this name have any dots in it? If so, make no change */
+
+ if (strchr_m(name, '.'))
+ return(gethostbyname(name));
+
+ /* Get my hostname, which should have domain name
+ attached. If not, just do the gethostname on the
+ original string.
+ */
+
+ gethostname(hostname, sizeof(hostname) - 1);
+ hostname[sizeof(hostname) - 1] = 0;
+ if ((domain = strchr_m(hostname, '.')) == NULL)
+ return(gethostbyname(name));
+
+ /* Attach domain name to query and do modified query.
+ If names too large, just do gethostname on the
+ original string.
+ */
+
+ if((strlen(name) + strlen(domain)) >= sizeof(query))
+ return(gethostbyname(name));
+
+ slprintf(query, sizeof(query)-1, "%s%s", name, domain);
+ return(gethostbyname(query));
+#else /* REDUCE_ROOT_DNS_LOOKUPS */
+ return(gethostbyname(name));
+#endif /* REDUCE_ROOT_DNS_LOOKUPS */
+}
+
+
+#if defined(HAVE_IRIX_SPECIFIC_CAPABILITIES)
+/**************************************************************************
+ Try and abstract process capabilities (for systems that have them).
+****************************************************************************/
+static BOOL set_process_capability( uint32 cap_flag, BOOL enable )
+{
+ if(cap_flag == KERNEL_OPLOCK_CAPABILITY) {
+ cap_t cap = cap_get_proc();
+
+ if (cap == NULL) {
+ DEBUG(0,("set_process_capability: cap_get_proc failed. Error was %s\n",
+ strerror(errno)));
+ return False;
+ }
+
+ if(enable)
+ cap->cap_effective |= CAP_NETWORK_MGT;
+ else
+ cap->cap_effective &= ~CAP_NETWORK_MGT;
+
+ if (cap_set_proc(cap) == -1) {
+ DEBUG(0,("set_process_capability: cap_set_proc failed. Error was %s\n",
+ strerror(errno)));
+ cap_free(cap);
+ return False;
+ }
+
+ cap_free(cap);
+
+ DEBUG(10,("set_process_capability: Set KERNEL_OPLOCK_CAPABILITY.\n"));
+ }
+ return True;
+}
+
+/**************************************************************************
+ Try and abstract inherited process capabilities (for systems that have them).
+****************************************************************************/
+
+static BOOL set_inherited_process_capability( uint32 cap_flag, BOOL enable )
+{
+ if(cap_flag == KERNEL_OPLOCK_CAPABILITY) {
+ cap_t cap = cap_get_proc();
+
+ if (cap == NULL) {
+ DEBUG(0,("set_inherited_process_capability: cap_get_proc failed. Error was %s\n",
+ strerror(errno)));
+ return False;
+ }
+
+ if(enable)
+ cap->cap_inheritable |= CAP_NETWORK_MGT;
+ else
+ cap->cap_inheritable &= ~CAP_NETWORK_MGT;
+
+ if (cap_set_proc(cap) == -1) {
+ DEBUG(0,("set_inherited_process_capability: cap_set_proc failed. Error was %s\n",
+ strerror(errno)));
+ cap_free(cap);
+ return False;
+ }
+
+ cap_free(cap);
+
+ DEBUG(10,("set_inherited_process_capability: Set KERNEL_OPLOCK_CAPABILITY.\n"));
+ }
+ return True;
+}
+#endif
+
+/****************************************************************************
+ Gain the oplock capability from the kernel if possible.
+****************************************************************************/
+
+void oplock_set_capability(BOOL this_process, BOOL inherit)
+{
+#if HAVE_KERNEL_OPLOCKS_IRIX
+ set_process_capability(KERNEL_OPLOCK_CAPABILITY,this_process);
+ set_inherited_process_capability(KERNEL_OPLOCK_CAPABILITY,inherit);
+#endif
+}
+
+/**************************************************************************
+ Wrapper for random().
+****************************************************************************/
+
+long sys_random(void)
+{
+#if defined(HAVE_RANDOM)
+ return (long)random();
+#elif defined(HAVE_RAND)
+ return (long)rand();
+#else
+ DEBUG(0,("Error - no random function available !\n"));
+ exit(1);
+#endif
+}
+
+/**************************************************************************
+ Wrapper for srandom().
+****************************************************************************/
+
+void sys_srandom(unsigned int seed)
+{
+#if defined(HAVE_SRANDOM)
+ srandom(seed);
+#elif defined(HAVE_SRAND)
+ srand(seed);
+#else
+ DEBUG(0,("Error - no srandom function available !\n"));
+ exit(1);
+#endif
+}
+
+/**************************************************************************
+ Returns equivalent to NGROUPS_MAX - using sysconf if needed.
+****************************************************************************/
+
+int groups_max(void)
+{
+#if defined(SYSCONF_SC_NGROUPS_MAX)
+ int ret = sysconf(_SC_NGROUPS_MAX);
+ return (ret == -1) ? NGROUPS_MAX : ret;
+#else
+ return NGROUPS_MAX;
+#endif
+}
+
+/**************************************************************************
+ Wrapper for getgroups. Deals with broken (int) case.
+****************************************************************************/
+
+int sys_getgroups(int setlen, gid_t *gidset)
+{
+#if !defined(HAVE_BROKEN_GETGROUPS)
+ return getgroups(setlen, gidset);
+#else
+
+ GID_T gid;
+ GID_T *group_list;
+ int i, ngroups;
+
+ if(setlen == 0) {
+ return getgroups(setlen, &gid);
+ }
+
+ /*
+ * Broken case. We need to allocate a
+ * GID_T array of size setlen.
+ */
+
+ if(setlen < 0) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (setlen == 0)
+ setlen = groups_max();
+
+ if((group_list = (GID_T *)malloc(setlen * sizeof(GID_T))) == NULL) {
+ DEBUG(0,("sys_getgroups: Malloc fail.\n"));
+ return -1;
+ }
+
+ if((ngroups = getgroups(setlen, group_list)) < 0) {
+ int saved_errno = errno;
+ SAFE_FREE(group_list);
+ errno = saved_errno;
+ return -1;
+ }
+
+ for(i = 0; i < ngroups; i++)
+ gidset[i] = (gid_t)group_list[i];
+
+ SAFE_FREE(group_list);
+ return ngroups;
+#endif /* HAVE_BROKEN_GETGROUPS */
+}
+
+
+/**************************************************************************
+ Wrapper for setgroups. Deals with broken (int) case. Automatically used
+ if we have broken getgroups.
+****************************************************************************/
+
+int sys_setgroups(int setlen, gid_t *gidset)
+{
+#if !defined(HAVE_SETGROUPS)
+ errno = ENOSYS;
+ return -1;
+#endif /* HAVE_SETGROUPS */
+
+#if !defined(HAVE_BROKEN_GETGROUPS)
+ return setgroups(setlen, gidset);
+#else
+
+ GID_T *group_list;
+ int i ;
+
+ if (setlen == 0)
+ return 0 ;
+
+ if (setlen < 0 || setlen > groups_max()) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ /*
+ * Broken case. We need to allocate a
+ * GID_T array of size setlen.
+ */
+
+ if((group_list = (GID_T *)malloc(setlen * sizeof(GID_T))) == NULL) {
+ DEBUG(0,("sys_setgroups: Malloc fail.\n"));
+ return -1;
+ }
+
+ for(i = 0; i < setlen; i++)
+ group_list[i] = (GID_T) gidset[i];
+
+ if(setgroups(setlen, group_list) != 0) {
+ int saved_errno = errno;
+ SAFE_FREE(group_list);
+ errno = saved_errno;
+ return -1;
+ }
+
+ SAFE_FREE(group_list);
+ return 0 ;
+#endif /* HAVE_BROKEN_GETGROUPS */
+}
+
+/**************************************************************************
+ Wrappers for setpwent(), getpwent() and endpwent()
+****************************************************************************/
+
+void sys_setpwent(void)
+{
+ setpwent();
+}
+
+struct passwd *sys_getpwent(void)
+{
+ return getpwent();
+}
+
+void sys_endpwent(void)
+{
+ endpwent();
+}
+
+/**************************************************************************
+ Wrappers for getpwnam(), getpwuid(), getgrnam(), getgrgid()
+****************************************************************************/
+
+struct passwd *sys_getpwnam(const char *name)
+{
+ return getpwnam(name);
+}
+
+struct passwd *sys_getpwuid(uid_t uid)
+{
+ return getpwuid(uid);
+}
+
+struct group *sys_getgrnam(const char *name)
+{
+ return getgrnam(name);
+}
+
+struct group *sys_getgrgid(gid_t gid)
+{
+ return getgrgid(gid);
+}
+
+#if 0 /* NOT CURRENTLY USED - JRA */
+/**************************************************************************
+ The following are the UNICODE versions of *all* system interface functions
+ called within Samba. Ok, ok, the exceptions are the gethostbyXX calls,
+ which currently are left as ascii as they are not used other than in name
+ resolution.
+****************************************************************************/
+
+/**************************************************************************
+ Wide stat. Just narrow and call sys_xxx.
+****************************************************************************/
+
+int wsys_stat(const smb_ucs2_t *wfname,SMB_STRUCT_STAT *sbuf)
+{
+ pstring fname;
+ return sys_stat(unicode_to_unix(fname,wfname,sizeof(fname)), sbuf);
+}
+
+/**************************************************************************
+ Wide lstat. Just narrow and call sys_xxx.
+****************************************************************************/
+
+int wsys_lstat(const smb_ucs2_t *wfname,SMB_STRUCT_STAT *sbuf)
+{
+ pstring fname;
+ return sys_lstat(unicode_to_unix(fname,wfname,sizeof(fname)), sbuf);
+}
+
+/**************************************************************************
+ Wide creat. Just narrow and call sys_xxx.
+****************************************************************************/
+
+int wsys_creat(const smb_ucs2_t *wfname, mode_t mode)
+{
+ pstring fname;
+ return sys_creat(unicode_to_unix(fname,wfname,sizeof(fname)), mode);
+}
+
+/**************************************************************************
+ Wide open. Just narrow and call sys_xxx.
+****************************************************************************/
+
+int wsys_open(const smb_ucs2_t *wfname, int oflag, mode_t mode)
+{
+ pstring fname;
+ return sys_open(unicode_to_unix(fname,wfname,sizeof(fname)), oflag, mode);
+}
+
+/**************************************************************************
+ Wide fopen. Just narrow and call sys_xxx.
+****************************************************************************/
+
+FILE *wsys_fopen(const smb_ucs2_t *wfname, const char *type)
+{
+ pstring fname;
+ return sys_fopen(unicode_to_unix(fname,wfname,sizeof(fname)), type);
+}
+
+/**************************************************************************
+ Wide opendir. Just narrow and call sys_xxx.
+****************************************************************************/
+
+SMB_STRUCT_DIR *wsys_opendir(const smb_ucs2_t *wfname)
+{
+ pstring fname;
+ return opendir(unicode_to_unix(fname,wfname,sizeof(fname)));
+}
+
+/**************************************************************************
+ Wide readdir. Return a structure pointer containing a wide filename.
+****************************************************************************/
+
+SMB_STRUCT_WDIRENT *wsys_readdir(SMB_STRUCT_DIR *dirp)
+{
+ static SMB_STRUCT_WDIRENT retval;
+ SMB_STRUCT_DIRENT *dirval = sys_readdir(dirp);
+
+ if(!dirval)
+ return NULL;
+
+ /*
+ * The only POSIX defined member of this struct is d_name.
+ */
+
+ unix_to_unicode(retval.d_name,dirval->d_name,sizeof(retval.d_name));
+
+ return &retval;
+}
+
+/**************************************************************************
+ Wide getwd. Call sys_xxx and widen. Assumes s points to a wpstring.
+****************************************************************************/
+
+smb_ucs2_t *wsys_getwd(smb_ucs2_t *s)
+{
+ pstring fname;
+ char *p = sys_getwd(fname);
+
+ if(!p)
+ return NULL;
+
+ return unix_to_unicode(s, p, sizeof(wpstring));
+}
+
+/**************************************************************************
+ Wide chown. Just narrow and call sys_xxx.
+****************************************************************************/
+
+int wsys_chown(const smb_ucs2_t *wfname, uid_t uid, gid_t gid)
+{
+ pstring fname;
+ return chown(unicode_to_unix(fname,wfname,sizeof(fname)), uid, gid);
+}
+
+/**************************************************************************
+ Wide chroot. Just narrow and call sys_xxx.
+****************************************************************************/
+
+int wsys_chroot(const smb_ucs2_t *wfname)
+{
+ pstring fname;
+ return chroot(unicode_to_unix(fname,wfname,sizeof(fname)));
+}
+
+/**************************************************************************
+ Wide getpwnam. Return a structure pointer containing wide names.
+****************************************************************************/
+
+SMB_STRUCT_WPASSWD *wsys_getpwnam(const smb_ucs2_t *wname)
+{
+ static SMB_STRUCT_WPASSWD retval;
+ fstring name;
+ struct passwd *pwret = sys_getpwnam(unicode_to_unix(name,wname,sizeof(name)));
+
+ if(!pwret)
+ return NULL;
+
+ unix_to_unicode(retval.pw_name, pwret->pw_name, sizeof(retval.pw_name));
+ retval.pw_passwd = pwret->pw_passwd;
+ retval.pw_uid = pwret->pw_uid;
+ retval.pw_gid = pwret->pw_gid;
+ unix_to_unicode(retval.pw_gecos, pwret->pw_gecos, sizeof(retval.pw_gecos));
+ unix_to_unicode(retval.pw_dir, pwret->pw_dir, sizeof(retval.pw_dir));
+ unix_to_unicode(retval.pw_shell, pwret->pw_shell, sizeof(retval.pw_shell));
+
+ return &retval;
+}
+
+/**************************************************************************
+ Wide getpwuid. Return a structure pointer containing wide names.
+****************************************************************************/
+
+SMB_STRUCT_WPASSWD *wsys_getpwuid(uid_t uid)
+{
+ static SMB_STRUCT_WPASSWD retval;
+ struct passwd *pwret = sys_getpwuid(uid);
+
+ if(!pwret)
+ return NULL;
+
+ unix_to_unicode(retval.pw_name, pwret->pw_name, sizeof(retval.pw_name));
+ retval.pw_passwd = pwret->pw_passwd;
+ retval.pw_uid = pwret->pw_uid;
+ retval.pw_gid = pwret->pw_gid;
+ unix_to_unicode(retval.pw_gecos, pwret->pw_gecos, sizeof(retval.pw_gecos));
+ unix_to_unicode(retval.pw_dir, pwret->pw_dir, sizeof(retval.pw_dir));
+ unix_to_unicode(retval.pw_shell, pwret->pw_shell, sizeof(retval.pw_shell));
+
+ return &retval;
+}
+#endif /* NOT CURRENTLY USED - JRA */
+
+/**************************************************************************
+ Extract a command into an arg list. Uses a static pstring for storage.
+ Caller frees returned arg list (which contains pointers into the static pstring).
+****************************************************************************/
+
+static char **extract_args(const char *command)
+{
+ static pstring trunc_cmd;
+ char *ptr;
+ int argcl;
+ char **argl = NULL;
+ int i;
+
+ pstrcpy(trunc_cmd, command);
+
+ if(!(ptr = strtok(trunc_cmd, " \t"))) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ /*
+ * Count the args.
+ */
+
+ for( argcl = 1; ptr; ptr = strtok(NULL, " \t"))
+ argcl++;
+
+ if((argl = (char **)SMB_MALLOC((argcl + 1) * sizeof(char *))) == NULL)
+ return NULL;
+
+ /*
+ * Now do the extraction.
+ */
+
+ pstrcpy(trunc_cmd, command);
+
+ ptr = strtok(trunc_cmd, " \t");
+ i = 0;
+ argl[i++] = ptr;
+
+ while((ptr = strtok(NULL, " \t")) != NULL)
+ argl[i++] = ptr;
+
+ argl[i++] = NULL;
+ return argl;
+}
+
+/**************************************************************************
+ Wrapper for fork. Ensures that mypid is reset. Used so we can write
+ a sys_getpid() that only does a system call *once*.
+****************************************************************************/
+
+static pid_t mypid = (pid_t)-1;
+
+pid_t sys_fork(void)
+{
+ pid_t forkret = fork();
+
+ if (forkret == (pid_t)0) /* Child - reset mypid so sys_getpid does a system call. */
+ mypid = (pid_t) -1;
+
+ return forkret;
+}
+
+/**************************************************************************
+ Wrapper for getpid. Ensures we only do a system call *once*.
+****************************************************************************/
+
+pid_t sys_getpid(void)
+{
+ if (mypid == (pid_t)-1)
+ mypid = getpid();
+
+ return mypid;
+}
+
+/**************************************************************************
+ Wrapper for popen. Safer as it doesn't search a path.
+ Modified from the glibc sources.
+ modified by tridge to return a file descriptor. We must kick our FILE* habit
+****************************************************************************/
+
+typedef struct _popen_list
+{
+ int fd;
+ pid_t child_pid;
+ struct _popen_list *next;
+} popen_list;
+
+static popen_list *popen_chain;
+
+int sys_popen(const char *command)
+{
+ int parent_end, child_end;
+ int pipe_fds[2];
+ popen_list *entry = NULL;
+ char **argl = NULL;
+
+ if (pipe(pipe_fds) < 0)
+ return -1;
+
+ parent_end = pipe_fds[0];
+ child_end = pipe_fds[1];
+
+ if (!*command) {
+ errno = EINVAL;
+ goto err_exit;
+ }
+
+ if((entry = SMB_MALLOC_P(popen_list)) == NULL)
+ goto err_exit;
+
+ ZERO_STRUCTP(entry);
+
+ /*
+ * Extract the command and args into a NULL terminated array.
+ */
+
+ if(!(argl = extract_args(command)))
+ goto err_exit;
+
+ entry->child_pid = sys_fork();
+
+ if (entry->child_pid == -1) {
+ goto err_exit;
+ }
+
+ if (entry->child_pid == 0) {
+
+ /*
+ * Child !
+ */
+
+ int child_std_end = STDOUT_FILENO;
+ popen_list *p;
+
+ close(parent_end);
+ if (child_end != child_std_end) {
+ dup2 (child_end, child_std_end);
+ close (child_end);
+ }
+
+ /*
+ * POSIX.2: "popen() shall ensure that any streams from previous
+ * popen() calls that remain open in the parent process are closed
+ * in the new child process."
+ */
+
+ for (p = popen_chain; p; p = p->next)
+ close(p->fd);
+
+ execv(argl[0], argl);
+ _exit (127);
+ }
+
+ /*
+ * Parent.
+ */
+
+ close (child_end);
+ SAFE_FREE(argl);
+
+ /* Link into popen_chain. */
+ entry->next = popen_chain;
+ popen_chain = entry;
+ entry->fd = parent_end;
+
+ return entry->fd;
+
+err_exit:
+
+ SAFE_FREE(entry);
+ SAFE_FREE(argl);
+ close(pipe_fds[0]);
+ close(pipe_fds[1]);
+ return -1;
+}
+
+/**************************************************************************
+ Wrapper for pclose. Modified from the glibc sources.
+****************************************************************************/
+
+int sys_pclose(int fd)
+{
+ int wstatus;
+ popen_list **ptr = &popen_chain;
+ popen_list *entry = NULL;
+ pid_t wait_pid;
+ int status = -1;
+
+ /* Unlink from popen_chain. */
+ for ( ; *ptr != NULL; ptr = &(*ptr)->next) {
+ if ((*ptr)->fd == fd) {
+ entry = *ptr;
+ *ptr = (*ptr)->next;
+ status = 0;
+ break;
+ }
+ }
+
+ if (status < 0 || close(entry->fd) < 0)
+ return -1;
+
+ /*
+ * As Samba is catching and eating child process
+ * exits we don't really care about the child exit
+ * code, a -1 with errno = ECHILD will do fine for us.
+ */
+
+ do {
+ wait_pid = sys_waitpid (entry->child_pid, &wstatus, 0);
+ } while (wait_pid == -1 && errno == EINTR);
+
+ SAFE_FREE(entry);
+
+ if (wait_pid == -1)
+ return -1;
+ return wstatus;
+}
+
+/**************************************************************************
+ Wrappers for dlopen, dlsym, dlclose.
+****************************************************************************/
+
+void *sys_dlopen(const char *name, int flags)
+{
+#if defined(HAVE_DLOPEN)
+ return dlopen(name, flags);
+#else
+ return NULL;
+#endif
+}
+
+void *sys_dlsym(void *handle, const char *symbol)
+{
+#if defined(HAVE_DLSYM)
+ return dlsym(handle, symbol);
+#else
+ return NULL;
+#endif
+}
+
+int sys_dlclose (void *handle)
+{
+#if defined(HAVE_DLCLOSE)
+ return dlclose(handle);
+#else
+ return 0;
+#endif
+}
+
+const char *sys_dlerror(void)
+{
+#if defined(HAVE_DLERROR)
+ return dlerror();
+#else
+ return NULL;
+#endif
+}
+
+int sys_dup2(int oldfd, int newfd)
+{
+#if defined(HAVE_DUP2)
+ return dup2(oldfd, newfd);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+/**************************************************************************
+ Wrapper for Admin Logs.
+****************************************************************************/
+
+ void sys_adminlog(int priority, const char *format_str, ...)
+{
+ va_list ap;
+ int ret;
+ char *msgbuf = NULL;
+
+ va_start( ap, format_str );
+ ret = vasprintf( &msgbuf, format_str, ap );
+ va_end( ap );
+
+ if (ret == -1)
+ return;
+
+#if defined(HAVE_SYSLOG)
+ syslog( priority, "%s", msgbuf );
+#else
+ DEBUG(0,("%s", msgbuf ));
+#endif
+ SAFE_FREE(msgbuf);
+}
+
+/**************************************************************************
+ Wrappers for extented attribute calls. Based on the Linux package with
+ support for IRIX and (Net|Free)BSD also. Expand as other systems have them.
+****************************************************************************/
+
+ssize_t sys_getxattr (const char *path, const char *name, void *value, size_t size)
+{
+#if defined(HAVE_GETXATTR)
+ return getxattr(path, name, value, size);
+#elif defined(HAVE_EXTATTR_GET_FILE)
+ char *s;
+ ssize_t retval;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+ /*
+ * The BSD implementation has a nasty habit of silently truncating
+ * the returned value to the size of the buffer, so we have to check
+ * that the buffer is large enough to fit the returned value.
+ */
+ if((retval=extattr_get_file(path, attrnamespace, attrname, NULL, 0)) >= 0) {
+ if(retval > size) {
+ errno = ERANGE;
+ return -1;
+ }
+ if((retval=extattr_get_file(path, attrnamespace, attrname, value, size)) >= 0)
+ return retval;
+ }
+
+ DEBUG(10,("sys_getxattr: extattr_get_file() failed with: %s\n", strerror(errno)));
+ return -1;
+#elif defined(HAVE_ATTR_GET)
+ int retval, flags = 0;
+ int valuelength = (int)size;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
+
+ retval = attr_get(path, attrname, (char *)value, &valuelength, flags);
+
+ return retval ? retval : valuelength;
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+ssize_t sys_lgetxattr (const char *path, const char *name, void *value, size_t size)
+{
+#if defined(HAVE_LGETXATTR)
+ return lgetxattr(path, name, value, size);
+#elif defined(HAVE_EXTATTR_GET_LINK)
+ char *s;
+ ssize_t retval;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+
+ if((retval=extattr_get_link(path, attrnamespace, attrname, NULL, 0)) >= 0) {
+ if(retval > size) {
+ errno = ERANGE;
+ return -1;
+ }
+ if((retval=extattr_get_link(path, attrnamespace, attrname, value, size)) >= 0)
+ return retval;
+ }
+
+ DEBUG(10,("sys_lgetxattr: extattr_get_link() failed with: %s\n", strerror(errno)));
+ return -1;
+#elif defined(HAVE_ATTR_GET)
+ int retval, flags = ATTR_DONTFOLLOW;
+ int valuelength = (int)size;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
+
+ retval = attr_get(path, attrname, (char *)value, &valuelength, flags);
+
+ return retval ? retval : valuelength;
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+ssize_t sys_fgetxattr (int filedes, const char *name, void *value, size_t size)
+{
+#if defined(HAVE_FGETXATTR)
+ return fgetxattr(filedes, name, value, size);
+#elif defined(HAVE_EXTATTR_GET_FD)
+ char *s;
+ ssize_t retval;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+
+ if((retval=extattr_get_fd(filedes, attrnamespace, attrname, NULL, 0)) >= 0) {
+ if(retval > size) {
+ errno = ERANGE;
+ return -1;
+ }
+ if((retval=extattr_get_fd(filedes, attrnamespace, attrname, value, size)) >= 0)
+ return retval;
+ }
+
+ DEBUG(10,("sys_fgetxattr: extattr_get_fd() failed with: %s\n", strerror(errno)));
+ return -1;
+#elif defined(HAVE_ATTR_GETF)
+ int retval, flags = 0;
+ int valuelength = (int)size;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
+
+ retval = attr_getf(filedes, attrname, (char *)value, &valuelength, flags);
+
+ return retval ? retval : valuelength;
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+#if defined(HAVE_EXTATTR_LIST_FILE)
+
+#define EXTATTR_PREFIX(s) (s), (sizeof((s))-1)
+
+static struct {
+ int space;
+ const char *name;
+ size_t len;
+}
+extattr[] = {
+ { EXTATTR_NAMESPACE_SYSTEM, EXTATTR_PREFIX("system.") },
+ { EXTATTR_NAMESPACE_USER, EXTATTR_PREFIX("user.") },
+};
+
+typedef union {
+ const char *path;
+ int filedes;
+} extattr_arg;
+
+static ssize_t bsd_attr_list (int type, extattr_arg arg, char *list, size_t size)
+{
+ ssize_t list_size, total_size = 0;
+ int i, t, len;
+ char *buf;
+ /* Iterate through extattr(2) namespaces */
+ for(t = 0; t < (sizeof(extattr)/sizeof(extattr[0])); t++) {
+ switch(type) {
+#if defined(HAVE_EXTATTR_LIST_FILE)
+ case 0:
+ list_size = extattr_list_file(arg.path, extattr[t].space, list, size);
+ break;
+#endif
+#if defined(HAVE_EXTATTR_LIST_LINK)
+ case 1:
+ list_size = extattr_list_link(arg.path, extattr[t].space, list, size);
+ break;
+#endif
+#if defined(HAVE_EXTATTR_LIST_FD)
+ case 2:
+ list_size = extattr_list_fd(arg.filedes, extattr[t].space, list, size);
+ break;
+#endif
+ default:
+ errno = ENOSYS;
+ return -1;
+ }
+ /* Some error happend. Errno should be set by the previous call */
+ if(list_size < 0)
+ return -1;
+ /* No attributes */
+ if(list_size == 0)
+ continue;
+ /* XXX: Call with an empty buffer may be used to calculate
+ necessary buffer size. Unfortunately, we can't say, how
+ many attributes were returned, so here is the potential
+ problem with the emulation.
+ */
+ if(list == NULL) {
+ /* Take the worse case of one char attribute names -
+ two bytes per name plus one more for sanity.
+ */
+ total_size += list_size + (list_size/2 + 1)*extattr[t].len;
+ continue;
+ }
+ /* Count necessary offset to fit namespace prefixes */
+ len = 0;
+ for(i = 0; i < list_size; i += list[i] + 1)
+ len += extattr[t].len;
+
+ total_size += list_size + len;
+ /* Buffer is too small to fit the results */
+ if(total_size > size) {
+ errno = ERANGE;
+ return -1;
+ }
+ /* Shift results back, so we can prepend prefixes */
+ buf = memmove(list + len, list, list_size);
+
+ for(i = 0; i < list_size; i += len + 1) {
+ len = buf[i];
+ strncpy(list, extattr[t].name, extattr[t].len + 1);
+ list += extattr[t].len;
+ strncpy(list, buf + i + 1, len);
+ list[len] = '\0';
+ list += len + 1;
+ }
+ size -= total_size;
+ }
+ return total_size;
+}
+
+#endif
+
+#if defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
+static char attr_buffer[ATTR_MAX_VALUELEN];
+
+static ssize_t irix_attr_list(const char *path, int filedes, char *list, size_t size, int flags)
+{
+ int retval = 0, index;
+ attrlist_cursor_t *cursor = 0;
+ int total_size = 0;
+ attrlist_t * al = (attrlist_t *)attr_buffer;
+ attrlist_ent_t *ae;
+ size_t ent_size, left = size;
+ char *bp = list;
+
+ while (True) {
+ if (filedes)
+ retval = attr_listf(filedes, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
+ else
+ retval = attr_list(path, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
+ if (retval) break;
+ for (index = 0; index < al->al_count; index++) {
+ ae = ATTR_ENTRY(attr_buffer, index);
+ ent_size = strlen(ae->a_name) + sizeof("user.");
+ if (left >= ent_size) {
+ strncpy(bp, "user.", sizeof("user."));
+ strncat(bp, ae->a_name, ent_size - sizeof("user."));
+ bp += ent_size;
+ left -= ent_size;
+ } else if (size) {
+ errno = ERANGE;
+ retval = -1;
+ break;
+ }
+ total_size += ent_size;
+ }
+ if (al->al_more == 0) break;
+ }
+ if (retval == 0) {
+ flags |= ATTR_ROOT;
+ cursor = 0;
+ while (True) {
+ if (filedes)
+ retval = attr_listf(filedes, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
+ else
+ retval = attr_list(path, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
+ if (retval) break;
+ for (index = 0; index < al->al_count; index++) {
+ ae = ATTR_ENTRY(attr_buffer, index);
+ ent_size = strlen(ae->a_name) + sizeof("system.");
+ if (left >= ent_size) {
+ strncpy(bp, "system.", sizeof("system."));
+ strncat(bp, ae->a_name, ent_size - sizeof("system."));
+ bp += ent_size;
+ left -= ent_size;
+ } else if (size) {
+ errno = ERANGE;
+ retval = -1;
+ break;
+ }
+ total_size += ent_size;
+ }
+ if (al->al_more == 0) break;
+ }
+ }
+ return (ssize_t)(retval ? retval : total_size);
+}
+
+#endif
+
+ssize_t sys_listxattr (const char *path, char *list, size_t size)
+{
+#if defined(HAVE_LISTXATTR)
+ return listxattr(path, list, size);
+#elif defined(HAVE_EXTATTR_LIST_FILE)
+ extattr_arg arg;
+ arg.path = path;
+ return bsd_attr_list(0, arg, list, size);
+#elif defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
+ return irix_attr_list(path, 0, list, size, 0);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+ssize_t sys_llistxattr (const char *path, char *list, size_t size)
+{
+#if defined(HAVE_LLISTXATTR)
+ return llistxattr(path, list, size);
+#elif defined(HAVE_EXTATTR_LIST_LINK)
+ extattr_arg arg;
+ arg.path = path;
+ return bsd_attr_list(1, arg, list, size);
+#elif defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
+ return irix_attr_list(path, 0, list, size, ATTR_DONTFOLLOW);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+ssize_t sys_flistxattr (int filedes, char *list, size_t size)
+{
+#if defined(HAVE_FLISTXATTR)
+ return flistxattr(filedes, list, size);
+#elif defined(HAVE_EXTATTR_LIST_FD)
+ extattr_arg arg;
+ arg.filedes = filedes;
+ return bsd_attr_list(2, arg, list, size);
+#elif defined(HAVE_ATTR_LISTF)
+ return irix_attr_list(NULL, filedes, list, size, 0);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+int sys_removexattr (const char *path, const char *name)
+{
+#if defined(HAVE_REMOVEXATTR)
+ return removexattr(path, name);
+#elif defined(HAVE_EXTATTR_DELETE_FILE)
+ char *s;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+
+ return extattr_delete_file(path, attrnamespace, attrname);
+#elif defined(HAVE_ATTR_REMOVE)
+ int flags = 0;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
+
+ return attr_remove(path, attrname, flags);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+int sys_lremovexattr (const char *path, const char *name)
+{
+#if defined(HAVE_LREMOVEXATTR)
+ return lremovexattr(path, name);
+#elif defined(HAVE_EXTATTR_DELETE_LINK)
+ char *s;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+
+ return extattr_delete_link(path, attrnamespace, attrname);
+#elif defined(HAVE_ATTR_REMOVE)
+ int flags = ATTR_DONTFOLLOW;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
+
+ return attr_remove(path, attrname, flags);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+int sys_fremovexattr (int filedes, const char *name)
+{
+#if defined(HAVE_FREMOVEXATTR)
+ return fremovexattr(filedes, name);
+#elif defined(HAVE_EXTATTR_DELETE_FD)
+ char *s;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+
+ return extattr_delete_fd(filedes, attrnamespace, attrname);
+#elif defined(HAVE_ATTR_REMOVEF)
+ int flags = 0;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
+
+ return attr_removef(filedes, attrname, flags);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+#if !defined(HAVE_SETXATTR)
+#define XATTR_CREATE 0x1 /* set value, fail if attr already exists */
+#define XATTR_REPLACE 0x2 /* set value, fail if attr does not exist */
+#endif
+
+int sys_setxattr (const char *path, const char *name, const void *value, size_t size, int flags)
+{
+#if defined(HAVE_SETXATTR)
+ return setxattr(path, name, value, size, flags);
+#elif defined(HAVE_EXTATTR_SET_FILE)
+ char *s;
+ int retval = 0;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+ if (flags) {
+ /* Check attribute existence */
+ retval = extattr_get_file(path, attrnamespace, attrname, NULL, 0);
+ if (retval < 0) {
+ /* REPLACE attribute, that doesn't exist */
+ if (flags & XATTR_REPLACE && errno == ENOATTR) {
+ errno = ENOATTR;
+ return -1;
+ }
+ /* Ignore other errors */
+ }
+ else {
+ /* CREATE attribute, that already exists */
+ if (flags & XATTR_CREATE) {
+ errno = EEXIST;
+ return -1;
+ }
+ }
+ }
+ retval = extattr_set_file(path, attrnamespace, attrname, value, size);
+ return (retval < 0) ? -1 : 0;
+#elif defined(HAVE_ATTR_SET)
+ int myflags = 0;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) myflags |= ATTR_ROOT;
+ if (flags & XATTR_CREATE) myflags |= ATTR_CREATE;
+ if (flags & XATTR_REPLACE) myflags |= ATTR_REPLACE;
+
+ return attr_set(path, attrname, (const char *)value, size, myflags);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+int sys_lsetxattr (const char *path, const char *name, const void *value, size_t size, int flags)
+{
+#if defined(HAVE_LSETXATTR)
+ return lsetxattr(path, name, value, size, flags);
+#elif defined(HAVE_EXTATTR_SET_LINK)
+ char *s;
+ int retval = 0;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+ if (flags) {
+ /* Check attribute existence */
+ retval = extattr_get_link(path, attrnamespace, attrname, NULL, 0);
+ if (retval < 0) {
+ /* REPLACE attribute, that doesn't exist */
+ if (flags & XATTR_REPLACE && errno == ENOATTR) {
+ errno = ENOATTR;
+ return -1;
+ }
+ /* Ignore other errors */
+ }
+ else {
+ /* CREATE attribute, that already exists */
+ if (flags & XATTR_CREATE) {
+ errno = EEXIST;
+ return -1;
+ }
+ }
+ }
+
+ retval = extattr_set_link(path, attrnamespace, attrname, value, size);
+ return (retval < 0) ? -1 : 0;
+#elif defined(HAVE_ATTR_SET)
+ int myflags = ATTR_DONTFOLLOW;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) myflags |= ATTR_ROOT;
+ if (flags & XATTR_CREATE) myflags |= ATTR_CREATE;
+ if (flags & XATTR_REPLACE) myflags |= ATTR_REPLACE;
+
+ return attr_set(path, attrname, (const char *)value, size, myflags);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+int sys_fsetxattr (int filedes, const char *name, const void *value, size_t size, int flags)
+{
+#if defined(HAVE_FSETXATTR)
+ return fsetxattr(filedes, name, value, size, flags);
+#elif defined(HAVE_EXTATTR_SET_FD)
+ char *s;
+ int retval = 0;
+ int attrnamespace = (strncmp(name, "system", 6) == 0) ?
+ EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
+ const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
+ if (flags) {
+ /* Check attribute existence */
+ retval = extattr_get_fd(filedes, attrnamespace, attrname, NULL, 0);
+ if (retval < 0) {
+ /* REPLACE attribute, that doesn't exist */
+ if (flags & XATTR_REPLACE && errno == ENOATTR) {
+ errno = ENOATTR;
+ return -1;
+ }
+ /* Ignore other errors */
+ }
+ else {
+ /* CREATE attribute, that already exists */
+ if (flags & XATTR_CREATE) {
+ errno = EEXIST;
+ return -1;
+ }
+ }
+ }
+ retval = extattr_set_fd(filedes, attrnamespace, attrname, value, size);
+ return (retval < 0) ? -1 : 0;
+#elif defined(HAVE_ATTR_SETF)
+ int myflags = 0;
+ char *attrname = strchr(name,'.') + 1;
+
+ if (strncmp(name, "system", 6) == 0) myflags |= ATTR_ROOT;
+ if (flags & XATTR_CREATE) myflags |= ATTR_CREATE;
+ if (flags & XATTR_REPLACE) myflags |= ATTR_REPLACE;
+
+ return attr_setf(filedes, attrname, (const char *)value, size, myflags);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+/****************************************************************************
+ Return the major devicenumber for UNIX extensions.
+****************************************************************************/
+
+uint32 unix_dev_major(SMB_DEV_T dev)
+{
+#if defined(HAVE_DEVICE_MAJOR_FN)
+ return (uint32)major(dev);
+#else
+ return (uint32)(dev >> 8);
+#endif
+}
+
+/****************************************************************************
+ Return the minor devicenumber for UNIX extensions.
+****************************************************************************/
+
+uint32 unix_dev_minor(SMB_DEV_T dev)
+{
+#if defined(HAVE_DEVICE_MINOR_FN)
+ return (uint32)minor(dev);
+#else
+ return (uint32)(dev & 0xff);
+#endif
+}
+
+#if defined(WITH_AIO)
+
+/*******************************************************************
+ An aio_read wrapper that will deal with 64-bit sizes.
+********************************************************************/
+
+int sys_aio_read(SMB_STRUCT_AIOCB *aiocb)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_READ64)
+ return aio_read64(aiocb);
+#elif defined(HAVE_AIO_READ)
+ return aio_read(aiocb);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+/*******************************************************************
+ An aio_write wrapper that will deal with 64-bit sizes.
+********************************************************************/
+
+int sys_aio_write(SMB_STRUCT_AIOCB *aiocb)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_WRITE64)
+ return aio_write64(aiocb);
+#elif defined(HAVE_AIO_WRITE)
+ return aio_write(aiocb);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+/*******************************************************************
+ An aio_return wrapper that will deal with 64-bit sizes.
+********************************************************************/
+
+ssize_t sys_aio_return(SMB_STRUCT_AIOCB *aiocb)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_RETURN64)
+ return aio_return64(aiocb);
+#elif defined(HAVE_AIO_RETURN)
+ return aio_return(aiocb);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+/*******************************************************************
+ An aio_cancel wrapper that will deal with 64-bit sizes.
+********************************************************************/
+
+int sys_aio_cancel(int fd, SMB_STRUCT_AIOCB *aiocb)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_CANCEL64)
+ return aio_cancel64(fd, aiocb);
+#elif defined(HAVE_AIO_CANCEL)
+ return aio_cancel(fd, aiocb);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+/*******************************************************************
+ An aio_error wrapper that will deal with 64-bit sizes.
+********************************************************************/
+
+int sys_aio_error(const SMB_STRUCT_AIOCB *aiocb)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_ERROR64)
+ return aio_error64(aiocb);
+#elif defined(HAVE_AIO_ERROR)
+ return aio_error(aiocb);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+/*******************************************************************
+ An aio_fsync wrapper that will deal with 64-bit sizes.
+********************************************************************/
+
+int sys_aio_fsync(int op, SMB_STRUCT_AIOCB *aiocb)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_FSYNC64)
+ return aio_fsync64(op, aiocb);
+#elif defined(HAVE_AIO_FSYNC)
+ return aio_fsync(op, aiocb);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+/*******************************************************************
+ An aio_fsync wrapper that will deal with 64-bit sizes.
+********************************************************************/
+
+int sys_aio_suspend(const SMB_STRUCT_AIOCB * const cblist[], int n, const struct timespec *timeout)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_SUSPEND64)
+ return aio_suspend64(cblist, n, timeout);
+#elif defined(HAVE_AIO_FSYNC)
+ return aio_suspend(cblist, n, timeout);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+#else /* !WITH_AIO */
+
+int sys_aio_read(SMB_STRUCT_AIOCB *aiocb)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+int sys_aio_write(SMB_STRUCT_AIOCB *aiocb)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+ssize_t sys_aio_return(SMB_STRUCT_AIOCB *aiocb)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+int sys_aio_cancel(int fd, SMB_STRUCT_AIOCB *aiocb)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+int sys_aio_error(const SMB_STRUCT_AIOCB *aiocb)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+int sys_aio_fsync(int op, SMB_STRUCT_AIOCB *aiocb)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+int sys_aio_suspend(const SMB_STRUCT_AIOCB * const cblist[], int n, const struct timespec *timeout)
+{
+ errno = ENOSYS;
+ return -1;
+}
+#endif /* WITH_AIO */
projects / samba / blobdiff