diff options
Diffstat (limited to 'lib/libarchive/archive_read_disk_entry_from_file.c')
| -rw-r--r-- | lib/libarchive/archive_read_disk_entry_from_file.c | 570 |
1 files changed, 0 insertions, 570 deletions
diff --git a/lib/libarchive/archive_read_disk_entry_from_file.c b/lib/libarchive/archive_read_disk_entry_from_file.c deleted file mode 100644 index 957e4ee..0000000 --- a/lib/libarchive/archive_read_disk_entry_from_file.c +++ /dev/null @@ -1,570 +0,0 @@ -/*- - * Copyright (c) 2003-2009 Tim Kientzle - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "archive_platform.h" -__FBSDID("$FreeBSD$"); - -#ifdef HAVE_SYS_TYPES_H -/* Mac OSX requires sys/types.h before sys/acl.h. */ -#include <sys/types.h> -#endif -#ifdef HAVE_SYS_ACL_H -#include <sys/acl.h> -#endif -#ifdef HAVE_SYS_EXTATTR_H -#include <sys/extattr.h> -#endif -#ifdef HAVE_SYS_PARAM_H -#include <sys/param.h> -#endif -#ifdef HAVE_SYS_STAT_H -#include <sys/stat.h> -#endif -#ifdef HAVE_SYS_XATTR_H -#include <sys/xattr.h> -#endif -#ifdef HAVE_ACL_LIBACL_H -#include <acl/libacl.h> -#endif -#ifdef HAVE_ATTR_XATTR_H -#include <attr/xattr.h> -#endif -#ifdef HAVE_ERRNO_H -#include <errno.h> -#endif -#ifdef HAVE_LIMITS_H -#include <limits.h> -#endif -#ifdef HAVE_WINDOWS_H -#include <windows.h> -#endif - -#include "archive.h" -#include "archive_entry.h" -#include "archive_private.h" -#include "archive_read_disk_private.h" - -/* - * Linux and FreeBSD plug this obvious hole in POSIX.1e in - * different ways. - */ -#if HAVE_ACL_GET_PERM -#define ACL_GET_PERM acl_get_perm -#elif HAVE_ACL_GET_PERM_NP -#define ACL_GET_PERM acl_get_perm_np -#endif - -static int setup_acls_posix1e(struct archive_read_disk *, - struct archive_entry *, int fd); -static int setup_xattrs(struct archive_read_disk *, - struct archive_entry *, int fd); - -int -archive_read_disk_entry_from_file(struct archive *_a, - struct archive_entry *entry, - int fd, const struct stat *st) -{ - struct archive_read_disk *a = (struct archive_read_disk *)_a; - const char *path, *name; - struct stat s; - int initial_fd = fd; - int r, r1; - - archive_clear_error(_a); - path = archive_entry_sourcepath(entry); - if (path == NULL) - path = archive_entry_pathname(entry); - -#ifdef EXT2_IOC_GETFLAGS - /* Linux requires an extra ioctl to pull the flags. Although - * this is an extra step, it has a nice side-effect: We get an - * open file descriptor which we can use in the subsequent lookups. */ - if ((S_ISREG(st->st_mode) || S_ISDIR(st->st_mode))) { - if (fd < 0) - fd = open(pathname, O_RDONLY | O_NONBLOCK | O_BINARY); - if (fd >= 0) { - unsigned long stflags; - int r = ioctl(fd, EXT2_IOC_GETFLAGS, &stflags); - if (r == 0 && stflags != 0) - archive_entry_set_fflags(entry, stflags, 0); - } - } -#endif - - if (st == NULL) { - /* TODO: On Windows, use GetFileInfoByHandle() here. - * Using Windows stat() call is badly broken, but - * even the stat() wrapper has problems because - * 'struct stat' is broken on Windows. - */ -#if HAVE_FSTAT - if (fd >= 0) { - if (fstat(fd, &s) != 0) { - archive_set_error(&a->archive, errno, - "Can't fstat"); - return (ARCHIVE_FAILED); - } - } else -#endif -#if HAVE_LSTAT - if (!a->follow_symlinks) { - if (lstat(path, &s) != 0) { - archive_set_error(&a->archive, errno, - "Can't lstat %s", path); - return (ARCHIVE_FAILED); - } - } else -#endif - if (stat(path, &s) != 0) { - archive_set_error(&a->archive, errno, - "Can't stat %s", path); - return (ARCHIVE_FAILED); - } - st = &s; - } - archive_entry_copy_stat(entry, st); - - /* Lookup uname/gname */ - name = archive_read_disk_uname(_a, archive_entry_uid(entry)); - if (name != NULL) - archive_entry_copy_uname(entry, name); - name = archive_read_disk_gname(_a, archive_entry_gid(entry)); - if (name != NULL) - archive_entry_copy_gname(entry, name); - -#ifdef HAVE_STRUCT_STAT_ST_FLAGS - /* On FreeBSD, we get flags for free with the stat. */ - /* TODO: Does this belong in copy_stat()? */ - if (st->st_flags != 0) - archive_entry_set_fflags(entry, st->st_flags, 0); -#endif - -#ifdef HAVE_READLINK - if (S_ISLNK(st->st_mode)) { - char linkbuffer[PATH_MAX + 1]; - int lnklen = readlink(path, linkbuffer, PATH_MAX); - if (lnklen < 0) { - archive_set_error(&a->archive, errno, - "Couldn't read link data"); - return (ARCHIVE_FAILED); - } - linkbuffer[lnklen] = 0; - archive_entry_set_symlink(entry, linkbuffer); - } -#endif - - r = setup_acls_posix1e(a, entry, fd); - r1 = setup_xattrs(a, entry, fd); - if (r1 < r) - r = r1; - /* If we opened the file earlier in this function, close it. */ - if (initial_fd != fd) - close(fd); - return (r); -} - -#ifdef HAVE_POSIX_ACL -static void setup_acl_posix1e(struct archive_read_disk *a, - struct archive_entry *entry, acl_t acl, int archive_entry_acl_type); - -static int -setup_acls_posix1e(struct archive_read_disk *a, - struct archive_entry *entry, int fd) -{ - const char *accpath; - acl_t acl; - - accpath = archive_entry_sourcepath(entry); - if (accpath == NULL) - accpath = archive_entry_pathname(entry); - - archive_entry_acl_clear(entry); - - /* Retrieve access ACL from file. */ - if (fd >= 0) - acl = acl_get_fd(fd); -#if HAVE_ACL_GET_LINK_NP - else if (!a->follow_symlinks) - acl = acl_get_link_np(accpath, ACL_TYPE_ACCESS); -#else - else if ((!a->follow_symlinks) - && (archive_entry_filetype(entry) == AE_IFLNK)) - /* We can't get the ACL of a symlink, so we assume it can't - have one. */ - acl = NULL; -#endif - else - acl = acl_get_file(accpath, ACL_TYPE_ACCESS); - if (acl != NULL) { - setup_acl_posix1e(a, entry, acl, - ARCHIVE_ENTRY_ACL_TYPE_ACCESS); - acl_free(acl); - } - - /* Only directories can have default ACLs. */ - if (S_ISDIR(archive_entry_mode(entry))) { - acl = acl_get_file(accpath, ACL_TYPE_DEFAULT); - if (acl != NULL) { - setup_acl_posix1e(a, entry, acl, - ARCHIVE_ENTRY_ACL_TYPE_DEFAULT); - acl_free(acl); - } - } - return (ARCHIVE_OK); -} - -/* - * Translate POSIX.1e ACL into libarchive internal structure. - */ -static void -setup_acl_posix1e(struct archive_read_disk *a, - struct archive_entry *entry, acl_t acl, int archive_entry_acl_type) -{ - acl_tag_t acl_tag; - acl_entry_t acl_entry; - acl_permset_t acl_permset; - int s, ae_id, ae_tag, ae_perm; - const char *ae_name; - - s = acl_get_entry(acl, ACL_FIRST_ENTRY, &acl_entry); - while (s == 1) { - ae_id = -1; - ae_name = NULL; - - acl_get_tag_type(acl_entry, &acl_tag); - if (acl_tag == ACL_USER) { - ae_id = (int)*(uid_t *)acl_get_qualifier(acl_entry); - ae_name = archive_read_disk_uname(&a->archive, ae_id); - ae_tag = ARCHIVE_ENTRY_ACL_USER; - } else if (acl_tag == ACL_GROUP) { - ae_id = (int)*(gid_t *)acl_get_qualifier(acl_entry); - ae_name = archive_read_disk_gname(&a->archive, ae_id); - ae_tag = ARCHIVE_ENTRY_ACL_GROUP; - } else if (acl_tag == ACL_MASK) { - ae_tag = ARCHIVE_ENTRY_ACL_MASK; - } else if (acl_tag == ACL_USER_OBJ) { - ae_tag = ARCHIVE_ENTRY_ACL_USER_OBJ; - } else if (acl_tag == ACL_GROUP_OBJ) { - ae_tag = ARCHIVE_ENTRY_ACL_GROUP_OBJ; - } else if (acl_tag == ACL_OTHER) { - ae_tag = ARCHIVE_ENTRY_ACL_OTHER; - } else { - /* Skip types that libarchive can't support. */ - continue; - } - - acl_get_permset(acl_entry, &acl_permset); - ae_perm = 0; - /* - * acl_get_perm() is spelled differently on different - * platforms; see above. - */ - if (ACL_GET_PERM(acl_permset, ACL_EXECUTE)) - ae_perm |= ARCHIVE_ENTRY_ACL_EXECUTE; - if (ACL_GET_PERM(acl_permset, ACL_READ)) - ae_perm |= ARCHIVE_ENTRY_ACL_READ; - if (ACL_GET_PERM(acl_permset, ACL_WRITE)) - ae_perm |= ARCHIVE_ENTRY_ACL_WRITE; - - archive_entry_acl_add_entry(entry, - archive_entry_acl_type, ae_perm, ae_tag, - ae_id, ae_name); - - s = acl_get_entry(acl, ACL_NEXT_ENTRY, &acl_entry); - } -} -#else -static int -setup_acls_posix1e(struct archive_read_disk *a, - struct archive_entry *entry, int fd) -{ - (void)a; /* UNUSED */ - (void)entry; /* UNUSED */ - (void)fd; /* UNUSED */ - return (ARCHIVE_OK); -} -#endif - -#if HAVE_LISTXATTR && HAVE_LLISTXATTR && HAVE_GETXATTR && HAVE_LGETXATTR - -/* - * Linux extended attribute support. - * - * TODO: By using a stack-allocated buffer for the first - * call to getxattr(), we might be able to avoid the second - * call entirely. We only need the second call if the - * stack-allocated buffer is too small. But a modest buffer - * of 1024 bytes or so will often be big enough. Same applies - * to listxattr(). - */ - - -static int -setup_xattr(struct archive_read_disk *a, - struct archive_entry *entry, const char *name, int fd) -{ - ssize_t size; - void *value = NULL; - const char *accpath; - - (void)fd; /* UNUSED */ - - accpath = archive_entry_sourcepath(entry); - if (accpath == NULL) - accpath = archive_entry_pathname(entry); - - if (!a->follow_symlinks) - size = lgetxattr(accpath, name, NULL, 0); - else - size = getxattr(accpath, name, NULL, 0); - - if (size == -1) { - archive_set_error(&a->archive, errno, - "Couldn't query extended attribute"); - return (ARCHIVE_WARN); - } - - if (size > 0 && (value = malloc(size)) == NULL) { - archive_set_error(&a->archive, errno, "Out of memory"); - return (ARCHIVE_FATAL); - } - - if (!a->follow_symlinks) - size = lgetxattr(accpath, name, value, size); - else - size = getxattr(accpath, name, value, size); - - if (size == -1) { - archive_set_error(&a->archive, errno, - "Couldn't read extended attribute"); - return (ARCHIVE_WARN); - } - - archive_entry_xattr_add_entry(entry, name, value, size); - - free(value); - return (ARCHIVE_OK); -} - -static int -setup_xattrs(struct archive_read_disk *a, - struct archive_entry *entry, int fd) -{ - char *list, *p; - const char *path; - ssize_t list_size; - - - path = archive_entry_sourcepath(entry); - if (path == NULL) - path = archive_entry_pathname(entry); - - if (!a->follow_symlinks) - list_size = llistxattr(path, NULL, 0); - else - list_size = listxattr(path, NULL, 0); - - if (list_size == -1) { - if (errno == ENOTSUP) - return (ARCHIVE_OK); - archive_set_error(&a->archive, errno, - "Couldn't list extended attributes"); - return (ARCHIVE_WARN); - } - - if (list_size == 0) - return (ARCHIVE_OK); - - if ((list = malloc(list_size)) == NULL) { - archive_set_error(&a->archive, errno, "Out of memory"); - return (ARCHIVE_FATAL); - } - - if (!a->follow_symlinks) - list_size = llistxattr(path, list, list_size); - else - list_size = listxattr(path, list, list_size); - - if (list_size == -1) { - archive_set_error(&a->archive, errno, - "Couldn't retrieve extended attributes"); - free(list); - return (ARCHIVE_WARN); - } - - for (p = list; (p - list) < list_size; p += strlen(p) + 1) { - if (strncmp(p, "system.", 7) == 0 || - strncmp(p, "xfsroot.", 8) == 0) - continue; - setup_xattr(a, entry, p, fd); - } - - free(list); - return (ARCHIVE_OK); -} - -#elif HAVE_EXTATTR_GET_FILE && HAVE_EXTATTR_LIST_FILE && \ - HAVE_DECL_EXTATTR_NAMESPACE_USER - -/* - * FreeBSD extattr interface. - */ - -/* TODO: Implement this. Follow the Linux model above, but - * with FreeBSD-specific system calls, of course. Be careful - * to not include the system extattrs that hold ACLs; we handle - * those separately. - */ -static int -setup_xattr(struct archive_read_disk *a, struct archive_entry *entry, - int namespace, const char *name, const char *fullname, int fd); - -static int -setup_xattr(struct archive_read_disk *a, struct archive_entry *entry, - int namespace, const char *name, const char *fullname, int fd) -{ - ssize_t size; - void *value = NULL; - const char *accpath; - - (void)fd; /* UNUSED */ - - accpath = archive_entry_sourcepath(entry); - if (accpath == NULL) - accpath = archive_entry_pathname(entry); - - if (!a->follow_symlinks) - size = extattr_get_link(accpath, namespace, name, NULL, 0); - else - size = extattr_get_file(accpath, namespace, name, NULL, 0); - - if (size == -1) { - archive_set_error(&a->archive, errno, - "Couldn't query extended attribute"); - return (ARCHIVE_WARN); - } - - if (size > 0 && (value = malloc(size)) == NULL) { - archive_set_error(&a->archive, errno, "Out of memory"); - return (ARCHIVE_FATAL); - } - - if (!a->follow_symlinks) - size = extattr_get_link(accpath, namespace, name, value, size); - else - size = extattr_get_file(accpath, namespace, name, value, size); - - if (size == -1) { - archive_set_error(&a->archive, errno, - "Couldn't read extended attribute"); - return (ARCHIVE_WARN); - } - - archive_entry_xattr_add_entry(entry, fullname, value, size); - - free(value); - return (ARCHIVE_OK); -} - -static int -setup_xattrs(struct archive_read_disk *a, - struct archive_entry *entry, int fd) -{ - char buff[512]; - char *list, *p; - ssize_t list_size; - const char *path; - int namespace = EXTATTR_NAMESPACE_USER; - - path = archive_entry_sourcepath(entry); - if (path == NULL) - path = archive_entry_pathname(entry); - - if (!a->follow_symlinks) - list_size = extattr_list_link(path, namespace, NULL, 0); - else - list_size = extattr_list_file(path, namespace, NULL, 0); - - if (list_size == -1 && errno == EOPNOTSUPP) - return (ARCHIVE_OK); - if (list_size == -1) { - archive_set_error(&a->archive, errno, - "Couldn't list extended attributes"); - return (ARCHIVE_WARN); - } - - if (list_size == 0) - return (ARCHIVE_OK); - - if ((list = malloc(list_size)) == NULL) { - archive_set_error(&a->archive, errno, "Out of memory"); - return (ARCHIVE_FATAL); - } - - if (!a->follow_symlinks) - list_size = extattr_list_link(path, namespace, list, list_size); - else - list_size = extattr_list_file(path, namespace, list, list_size); - - if (list_size == -1) { - archive_set_error(&a->archive, errno, - "Couldn't retrieve extended attributes"); - free(list); - return (ARCHIVE_WARN); - } - - p = list; - while ((p - list) < list_size) { - size_t len = 255 & (int)*p; - char *name; - - strcpy(buff, "user."); - name = buff + strlen(buff); - memcpy(name, p + 1, len); - name[len] = '\0'; - setup_xattr(a, entry, namespace, name, buff, fd); - p += 1 + len; - } - - free(list); - return (ARCHIVE_OK); -} - -#else - -/* - * Generic (stub) extended attribute support. - */ -static int -setup_xattrs(struct archive_read_disk *a, - struct archive_entry *entry, int fd) -{ - (void)a; /* UNUSED */ - (void)entry; /* UNUSED */ - (void)fd; /* UNUSED */ - return (ARCHIVE_OK); -} - -#endif |
