SAFE_FREE(msgbuf);
}
-/******** Solaris EA helper function prototypes ********/
-#ifdef HAVE_ATTROPEN
-#define SOLARIS_ATTRMODE S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP
-static int solaris_write_xattr(int attrfd, const char *value, size_t size);
-static ssize_t solaris_read_xattr(int attrfd, void *value, size_t size);
-static ssize_t solaris_list_xattr(int attrdirfd, char *list, size_t size);
-static int solaris_unlinkat(int attrdirfd, const char *name);
-static int solaris_attropen(const char *path, const char *attrpath, int oflag, mode_t mode);
-static int solaris_openat(int fildes, const char *path, int oflag, mode_t mode);
-#endif
-
-/**************************************************************************
- 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)
-#ifndef XATTR_ADD_OPT
- return getxattr(path, name, value, size);
-#else
- int options = 0;
- return getxattr(path, name, value, size, 0, options);
-#endif
-#elif defined(HAVE_GETEA)
- return getea(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;
-#elif defined(HAVE_ATTROPEN)
- ssize_t ret = -1;
- int attrfd = solaris_attropen(path, name, O_RDONLY, 0);
- if (attrfd >= 0) {
- ret = solaris_read_xattr(attrfd, value, size);
- close(attrfd);
- }
- return ret;
-#else
- errno = ENOSYS;
- return -1;
-#endif
-}
-
-ssize_t sys_fgetxattr (int filedes, const char *name, void *value, size_t size)
-{
-#if defined(HAVE_FGETXATTR)
-#ifndef XATTR_ADD_OPT
- return fgetxattr(filedes, name, value, size);
-#else
- int options = 0;
- return fgetxattr(filedes, name, value, size, 0, options);
-#endif
-#elif defined(HAVE_FGETEA)
- return fgetea(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;
-#elif defined(HAVE_ATTROPEN)
- ssize_t ret = -1;
- int attrfd = solaris_openat(filedes, name, O_RDONLY|O_XATTR, 0);
- if (attrfd >= 0) {
- ret = solaris_read_xattr(attrfd, value, size);
- close(attrfd);
- }
- return ret;
-#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 < ARRAY_SIZE(extattr); 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 = (char *)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)
-#ifndef XATTR_ADD_OPT
- return listxattr(path, list, size);
-#else
- int options = 0;
- return listxattr(path, list, size, options);
-#endif
-#elif defined(HAVE_LISTEA)
- return listea(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);
-#elif defined(HAVE_ATTROPEN)
- ssize_t ret = -1;
- int attrdirfd = solaris_attropen(path, ".", O_RDONLY, 0);
- if (attrdirfd >= 0) {
- ret = solaris_list_xattr(attrdirfd, list, size);
- close(attrdirfd);
- }
- return ret;
-#else
- errno = ENOSYS;
- return -1;
-#endif
-}
-
-ssize_t sys_flistxattr (int filedes, char *list, size_t size)
-{
-#if defined(HAVE_FLISTXATTR)
-#ifndef XATTR_ADD_OPT
- return flistxattr(filedes, list, size);
-#else
- int options = 0;
- return flistxattr(filedes, list, size, options);
-#endif
-#elif defined(HAVE_FLISTEA)
- return flistea(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);
-#elif defined(HAVE_ATTROPEN)
- ssize_t ret = -1;
- int attrdirfd = solaris_openat(filedes, ".", O_RDONLY|O_XATTR, 0);
- if (attrdirfd >= 0) {
- ret = solaris_list_xattr(attrdirfd, list, size);
- close(attrdirfd);
- }
- return ret;
-#else
- errno = ENOSYS;
- return -1;
-#endif
-}
-
-int sys_removexattr (const char *path, const char *name)
-{
-#if defined(HAVE_REMOVEXATTR)
-#ifndef XATTR_ADD_OPT
- return removexattr(path, name);
-#else
- int options = 0;
- return removexattr(path, name, options);
-#endif
-#elif defined(HAVE_REMOVEEA)
- return removeea(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);
-#elif defined(HAVE_ATTROPEN)
- int ret = -1;
- int attrdirfd = solaris_attropen(path, ".", O_RDONLY, 0);
- if (attrdirfd >= 0) {
- ret = solaris_unlinkat(attrdirfd, name);
- close(attrdirfd);
- }
- return ret;
-#else
- errno = ENOSYS;
- return -1;
-#endif
-}
-
-int sys_fremovexattr (int filedes, const char *name)
-{
-#if defined(HAVE_FREMOVEXATTR)
-#ifndef XATTR_ADD_OPT
- return fremovexattr(filedes, name);
-#else
- int options = 0;
- return fremovexattr(filedes, name, options);
-#endif
-#elif defined(HAVE_FREMOVEEA)
- return fremoveea(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);
-#elif defined(HAVE_ATTROPEN)
- int ret = -1;
- int attrdirfd = solaris_openat(filedes, ".", O_RDONLY|O_XATTR, 0);
- if (attrdirfd >= 0) {
- ret = solaris_unlinkat(attrdirfd, name);
- close(attrdirfd);
- }
- return ret;
-#else
- errno = ENOSYS;
- return -1;
-#endif
-}
-
-int sys_setxattr (const char *path, const char *name, const void *value, size_t size, int flags)
-{
-#if defined(HAVE_SETXATTR)
-#ifndef XATTR_ADD_OPT
- return setxattr(path, name, value, size, flags);
-#else
- int options = 0;
- return setxattr(path, name, value, size, 0, options);
-#endif
-#elif defined(HAVE_SETEA)
- return setea(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);
-#elif defined(HAVE_ATTROPEN)
- int ret = -1;
- int myflags = O_RDWR;
- int attrfd;
- if (flags & XATTR_CREATE) myflags |= O_EXCL;
- if (!(flags & XATTR_REPLACE)) myflags |= O_CREAT;
- attrfd = solaris_attropen(path, name, myflags, (mode_t) SOLARIS_ATTRMODE);
- if (attrfd >= 0) {
- ret = solaris_write_xattr(attrfd, value, size);
- close(attrfd);
- }
- return ret;
-#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)
-#ifndef XATTR_ADD_OPT
- return fsetxattr(filedes, name, value, size, flags);
-#else
- int options = 0;
- return fsetxattr(filedes, name, value, size, 0, options);
-#endif
-#elif defined(HAVE_FSETEA)
- return fsetea(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);
-#elif defined(HAVE_ATTROPEN)
- int ret = -1;
- int myflags = O_RDWR | O_XATTR;
- int attrfd;
- if (flags & XATTR_CREATE) myflags |= O_EXCL;
- if (!(flags & XATTR_REPLACE)) myflags |= O_CREAT;
- attrfd = solaris_openat(filedes, name, myflags, (mode_t) SOLARIS_ATTRMODE);
- if (attrfd >= 0) {
- ret = solaris_write_xattr(attrfd, value, size);
- close(attrfd);
- }
- return ret;
-#else
- errno = ENOSYS;
- return -1;
-#endif
-}
-
-/**************************************************************************
- helper functions for Solaris' EA support
-****************************************************************************/
-#ifdef HAVE_ATTROPEN
-static ssize_t solaris_read_xattr(int attrfd, void *value, size_t size)
-{
- struct stat sbuf;
-
- if (fstat(attrfd, &sbuf) == -1) {
- errno = ENOATTR;
- return -1;
- }
-
- /* This is to return the current size of the named extended attribute */
- if (size == 0) {
- return sbuf.st_size;
- }
-
- /* check size and read xattr */
- if (sbuf.st_size > size) {
- errno = ERANGE;
- return -1;
- }
-
- return read(attrfd, value, sbuf.st_size);
-}
-
-static ssize_t solaris_list_xattr(int attrdirfd, char *list, size_t size)
-{
- ssize_t len = 0;
- DIR *dirp;
- struct dirent *de;
- int newfd = dup(attrdirfd);
- /* CAUTION: The originating file descriptor should not be
- used again following the call to fdopendir().
- For that reason we dup() the file descriptor
- here to make things more clear. */
- dirp = fdopendir(newfd);
-
- while ((de = readdir(dirp))) {
- size_t listlen = strlen(de->d_name) + 1;
- if (!strcmp(de->d_name, ".") || !strcmp(de->d_name, "..")) {
- /* we don't want "." and ".." here: */
- DEBUG(10,("skipped EA %s\n",de->d_name));
- continue;
- }
-
- if (size == 0) {
- /* return the current size of the list of extended attribute names*/
- len += listlen;
- } else {
- /* check size and copy entrieѕ + nul into list. */
- if ((len + listlen) > size) {
- errno = ERANGE;
- len = -1;
- break;
- } else {
- strlcpy(list + len, de->d_name, listlen);
- len += listlen;
- }
- }
- }
-
- if (closedir(dirp) == -1) {
- DEBUG(0,("closedir dirp failed: %s\n",strerror(errno)));
- return -1;
- }
- return len;
-}
-
-static int solaris_unlinkat(int attrdirfd, const char *name)
-{
- if (unlinkat(attrdirfd, name, 0) == -1) {
- if (errno == ENOENT) {
- errno = ENOATTR;
- }
- return -1;
- }
- return 0;
-}
-
-static int solaris_attropen(const char *path, const char *attrpath, int oflag, mode_t mode)
-{
- int filedes = attropen(path, attrpath, oflag, mode);
- if (filedes == -1) {
- DEBUG(10,("attropen FAILED: path: %s, name: %s, errno: %s\n",path,attrpath,strerror(errno)));
- if (errno == EINVAL) {
- errno = ENOTSUP;
- } else {
- errno = ENOATTR;
- }
- }
- return filedes;
-}
-
-static int solaris_openat(int fildes, const char *path, int oflag, mode_t mode)
-{
- int filedes = openat(fildes, path, oflag, mode);
- if (filedes == -1) {
- DEBUG(10,("openat FAILED: fd: %d, path: %s, errno: %s\n",filedes,path,strerror(errno)));
- if (errno == EINVAL) {
- errno = ENOTSUP;
- } else {
- errno = ENOATTR;
- }
- }
- return filedes;
-}
-
-static int solaris_write_xattr(int attrfd, const char *value, size_t size)
-{
- if ((ftruncate(attrfd, 0) == 0) && (write(attrfd, value, size) == size)) {
- return 0;
- } else {
- DEBUG(10,("solaris_write_xattr FAILED!\n"));
- return -1;
- }
-}
-#endif /*HAVE_ATTROPEN*/
-
-
/****************************************************************************
Return the major devicenumber for UNIX extensions.
****************************************************************************/
git.samba.org / samba.git / commitdiff