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Diffstat (limited to 'libarchive/archive_read_disk_entry_from_file.c')
-rw-r--r--libarchive/archive_read_disk_entry_from_file.c240
1 files changed, 156 insertions, 84 deletions
diff --git a/libarchive/archive_read_disk_entry_from_file.c b/libarchive/archive_read_disk_entry_from_file.c
index 284b9e9733b3..a43c0adf9c2a 100644
--- a/libarchive/archive_read_disk_entry_from_file.c
+++ b/libarchive/archive_read_disk_entry_from_file.c
@@ -1,6 +1,6 @@
/*-
* Copyright (c) 2003-2009 Tim Kientzle
- * Copyright (c) 2010 Michihiro NAKAJIMA
+ * Copyright (c) 2010-2012 Michihiro NAKAJIMA
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -73,6 +73,9 @@ __FBSDID("$FreeBSD: head/lib/libarchive/archive_read_disk_entry_from_file.c 2010
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
+#ifdef HAVE_LINUX_TYPES_H
+#include <linux/types.h>
+#endif
#ifdef HAVE_LINUX_FIEMAP_H
#include <linux/fiemap.h>
#endif
@@ -112,13 +115,13 @@ __FBSDID("$FreeBSD: head/lib/libarchive/archive_read_disk_entry_from_file.c 2010
#endif
static int setup_acls_posix1e(struct archive_read_disk *,
- struct archive_entry *, int fd);
+ struct archive_entry *, int *fd);
static int setup_mac_metadata(struct archive_read_disk *,
- struct archive_entry *, int fd);
+ struct archive_entry *, int *fd);
static int setup_xattrs(struct archive_read_disk *,
- struct archive_entry *, int fd);
+ struct archive_entry *, int *fd);
static int setup_sparse(struct archive_read_disk *,
- struct archive_entry *, int fd);
+ struct archive_entry *, int *fd);
int
archive_read_disk_entry_from_file(struct archive *_a,
@@ -165,16 +168,15 @@ archive_read_disk_entry_from_file(struct archive *_a,
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);
}
- /* 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()? */
@@ -187,8 +189,13 @@ archive_read_disk_entry_from_file(struct archive *_a,
* 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(path, O_RDONLY | O_NONBLOCK);
+ if (fd < 0) {
+ if (a->tree != NULL)
+ fd = a->open_on_current_dir(a->tree, path,
+ O_RDONLY | O_NONBLOCK);
+ else
+ fd = open(path, O_RDONLY | O_NONBLOCK);
+ }
if (fd >= 0) {
unsigned long stflags;
r = ioctl(fd, EXT2_IOC_GETFLAGS, &stflags);
@@ -210,13 +217,21 @@ archive_read_disk_entry_from_file(struct archive *_a,
"Couldn't read link data");
return (ARCHIVE_FAILED);
}
+ if (a->tree != NULL) {
#ifdef HAVE_READLINKAT
- if (a->entry_wd_fd >= 0)
- lnklen = readlinkat(a->entry_wd_fd, path,
- linkbuffer, linkbuffer_len);
- else
+ lnklen = readlinkat(a->tree_current_dir_fd(a->tree),
+ path, linkbuffer, linkbuffer_len);
+#else
+ if (a->tree_enter_working_dir(a->tree) != 0) {
+ archive_set_error(&a->archive, errno,
+ "Couldn't read link data");
+ free(linkbuffer);
+ return (ARCHIVE_FAILED);
+ }
+ lnklen = readlink(path, linkbuffer, linkbuffer_len);
#endif /* HAVE_READLINKAT */
- lnklen = readlink(path, linkbuffer, linkbuffer_len);
+ } else
+ lnklen = readlink(path, linkbuffer, linkbuffer_len);
if (lnklen < 0) {
archive_set_error(&a->archive, errno,
"Couldn't read link data");
@@ -229,14 +244,16 @@ archive_read_disk_entry_from_file(struct archive *_a,
}
#endif /* HAVE_READLINK || HAVE_READLINKAT */
- r = setup_acls_posix1e(a, entry, fd);
- r1 = setup_xattrs(a, entry, fd);
- if (r1 < r)
- r = r1;
- r1 = setup_mac_metadata(a, entry, fd);
+ r = setup_acls_posix1e(a, entry, &fd);
+ r1 = setup_xattrs(a, entry, &fd);
if (r1 < r)
r = r1;
- r1 = setup_sparse(a, entry, fd);
+ if (a->enable_copyfile) {
+ r1 = setup_mac_metadata(a, entry, &fd);
+ if (r1 < r)
+ r = r1;
+ }
+ r1 = setup_sparse(a, entry, &fd);
if (r1 < r)
r = r1;
@@ -262,7 +279,7 @@ archive_read_disk_entry_from_file(struct archive *_a,
*/
static int
setup_mac_metadata(struct archive_read_disk *a,
- struct archive_entry *entry, int fd)
+ struct archive_entry *entry, int *fd)
{
int tempfd = -1;
int copyfile_flags = COPYFILE_NOFOLLOW | COPYFILE_ACL | COPYFILE_XATTR;
@@ -272,6 +289,7 @@ setup_mac_metadata(struct archive_read_disk *a,
int have_attrs;
const char *name, *tempdir, *tempfile = NULL;
+ (void)fd; /* UNUSED */
name = archive_entry_sourcepath(entry);
if (name == NULL)
name = archive_entry_pathname(entry);
@@ -281,6 +299,14 @@ setup_mac_metadata(struct archive_read_disk *a,
return (ARCHIVE_WARN);
}
+ if (a->tree != NULL) {
+ if (a->tree_enter_working_dir(a->tree) != 0) {
+ archive_set_error(&a->archive, errno,
+ "Couldn't change dir");
+ return (ARCHIVE_FAILED);
+ }
+ }
+
/* Short-circuit if there's nothing to do. */
have_attrs = copyfile(name, NULL, 0, copyfile_flags | COPYFILE_CHECK);
if (have_attrs == -1) {
@@ -351,7 +377,7 @@ cleanup:
*/
static int
setup_mac_metadata(struct archive_read_disk *a,
- struct archive_entry *entry, int fd)
+ struct archive_entry *entry, int *fd)
{
(void)a; /* UNUSED */
(void)entry; /* UNUSED */
@@ -367,7 +393,7 @@ static void setup_acl_posix1e(struct archive_read_disk *a,
static int
setup_acls_posix1e(struct archive_read_disk *a,
- struct archive_entry *entry, int fd)
+ struct archive_entry *entry, int *fd)
{
const char *accpath;
acl_t acl;
@@ -378,9 +404,20 @@ setup_acls_posix1e(struct archive_read_disk *a,
archive_entry_acl_clear(entry);
+ if (*fd < 0 && a->tree != NULL &&
+ (a->follow_symlinks || archive_entry_filetype(entry) != AE_IFLNK)){
+ *fd = a->open_on_current_dir(a->tree, accpath,
+ O_RDONLY | O_NONBLOCK);
+ if (*fd < 0) {
+ archive_set_error(&a->archive, errno,
+ "Couldn't access %s", accpath);
+ return (ARCHIVE_FAILED);
+ }
+ }
+
/* Retrieve access ACL from file. */
- if (fd >= 0)
- acl = acl_get_fd(fd);
+ 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);
@@ -474,7 +511,7 @@ setup_acl_posix1e(struct archive_read_disk *a,
#else
static int
setup_acls_posix1e(struct archive_read_disk *a,
- struct archive_entry *entry, int fd)
+ struct archive_entry *entry, int *fd)
{
(void)a; /* UNUSED */
(void)entry; /* UNUSED */
@@ -568,7 +605,7 @@ setup_xattr(struct archive_read_disk *a,
static int
setup_xattrs(struct archive_read_disk *a,
- struct archive_entry *entry, int fd)
+ struct archive_entry *entry, int *fd)
{
char *list, *p;
const char *path;
@@ -578,16 +615,30 @@ setup_xattrs(struct archive_read_disk *a,
if (path == NULL)
path = archive_entry_pathname(entry);
+ if (*fd < 0 && a->tree != NULL) {
+ if (a->follow_symlinks ||
+ archive_entry_filetype(entry) != AE_IFLNK)
+ *fd = a->open_on_current_dir(a->tree, path,
+ O_RDONLY | O_NONBLOCK);
+ if (*fd < 0) {
+ if (a->tree_enter_working_dir(a->tree) != 0) {
+ archive_set_error(&a->archive, errno,
+ "Couldn't access %s", path);
+ return (ARCHIVE_FAILED);
+ }
+ }
+ }
+
#if HAVE_FLISTXATTR
- if (fd >= 0)
- list_size = flistxattr(fd, NULL, 0);
+ if (*fd >= 0)
+ list_size = flistxattr(*fd, NULL, 0);
else if (!a->follow_symlinks)
list_size = llistxattr(path, NULL, 0);
else
list_size = listxattr(path, NULL, 0);
#elif HAVE_FLISTEA
- if (fd >= 0)
- list_size = flistea(fd, NULL, 0);
+ if (*fd >= 0)
+ list_size = flistea(*fd, NULL, 0);
else if (!a->follow_symlinks)
list_size = llistea(path, NULL, 0);
else
@@ -611,15 +662,15 @@ setup_xattrs(struct archive_read_disk *a,
}
#if HAVE_FLISTXATTR
- if (fd >= 0)
- list_size = flistxattr(fd, list, list_size);
+ if (*fd >= 0)
+ list_size = flistxattr(*fd, list, list_size);
else if (!a->follow_symlinks)
list_size = llistxattr(path, list, list_size);
else
list_size = listxattr(path, list, list_size);
#elif HAVE_FLISTEA
- if (fd >= 0)
- list_size = flistea(fd, list, list_size);
+ if (*fd >= 0)
+ list_size = flistea(*fd, list, list_size);
else if (!a->follow_symlinks)
list_size = llistea(path, list, list_size);
else
@@ -637,7 +688,7 @@ setup_xattrs(struct archive_read_disk *a,
if (strncmp(p, "system.", 7) == 0 ||
strncmp(p, "xfsroot.", 8) == 0)
continue;
- setup_xattr(a, entry, p, fd);
+ setup_xattr(a, entry, p, *fd);
}
free(list);
@@ -698,6 +749,7 @@ setup_xattr(struct archive_read_disk *a, struct archive_entry *entry,
size = extattr_get_file(accpath, namespace, name, value, size);
if (size == -1) {
+ free(value);
archive_set_error(&a->archive, errno,
"Couldn't read extended attribute");
return (ARCHIVE_WARN);
@@ -711,7 +763,7 @@ setup_xattr(struct archive_read_disk *a, struct archive_entry *entry,
static int
setup_xattrs(struct archive_read_disk *a,
- struct archive_entry *entry, int fd)
+ struct archive_entry *entry, int *fd)
{
char buff[512];
char *list, *p;
@@ -723,8 +775,22 @@ setup_xattrs(struct archive_read_disk *a,
if (path == NULL)
path = archive_entry_pathname(entry);
- if (fd >= 0)
- list_size = extattr_list_fd(fd, namespace, NULL, 0);
+ if (*fd < 0 && a->tree != NULL) {
+ if (a->follow_symlinks ||
+ archive_entry_filetype(entry) != AE_IFLNK)
+ *fd = a->open_on_current_dir(a->tree, path,
+ O_RDONLY | O_NONBLOCK);
+ if (*fd < 0) {
+ if (a->tree_enter_working_dir(a->tree) != 0) {
+ archive_set_error(&a->archive, errno,
+ "Couldn't access %s", path);
+ return (ARCHIVE_FAILED);
+ }
+ }
+ }
+
+ if (*fd >= 0)
+ list_size = extattr_list_fd(*fd, namespace, NULL, 0);
else if (!a->follow_symlinks)
list_size = extattr_list_link(path, namespace, NULL, 0);
else
@@ -746,8 +812,8 @@ setup_xattrs(struct archive_read_disk *a,
return (ARCHIVE_FATAL);
}
- if (fd >= 0)
- list_size = extattr_list_fd(fd, namespace, list, list_size);
+ if (*fd >= 0)
+ list_size = extattr_list_fd(*fd, namespace, list, list_size);
else if (!a->follow_symlinks)
list_size = extattr_list_link(path, namespace, list, list_size);
else
@@ -769,7 +835,7 @@ setup_xattrs(struct archive_read_disk *a,
name = buff + strlen(buff);
memcpy(name, p + 1, len);
name[len] = '\0';
- setup_xattr(a, entry, namespace, name, buff, fd);
+ setup_xattr(a, entry, namespace, name, buff, *fd);
p += 1 + len;
}
@@ -784,7 +850,7 @@ setup_xattrs(struct archive_read_disk *a,
*/
static int
setup_xattrs(struct archive_read_disk *a,
- struct archive_entry *entry, int fd)
+ struct archive_entry *entry, int *fd)
{
(void)a; /* UNUSED */
(void)entry; /* UNUSED */
@@ -813,14 +879,13 @@ setup_xattrs(struct archive_read_disk *a,
static int
setup_sparse(struct archive_read_disk *a,
- struct archive_entry *entry, int fd)
+ struct archive_entry *entry, int *fd)
{
char buff[4096];
struct fiemap *fm;
struct fiemap_extent *fe;
int64_t size;
int count, do_fiemap;
- int initial_fd = fd;
int exit_sts = ARCHIVE_OK;
if (archive_entry_filetype(entry) != AE_IFREG
@@ -828,14 +893,18 @@ setup_sparse(struct archive_read_disk *a,
|| archive_entry_hardlink(entry) != NULL)
return (ARCHIVE_OK);
- if (fd < 0) {
+ if (*fd < 0) {
const char *path;
path = archive_entry_sourcepath(entry);
if (path == NULL)
path = archive_entry_pathname(entry);
- fd = open(path, O_RDONLY | O_NONBLOCK);
- if (fd < 0) {
+ if (a->tree != NULL)
+ *fd = a->open_on_current_dir(a->tree, path,
+ O_RDONLY | O_NONBLOCK);
+ else
+ *fd = open(path, O_RDONLY | O_NONBLOCK);
+ if (*fd < 0) {
archive_set_error(&a->archive, errno,
"Can't open `%s'", path);
return (ARCHIVE_FAILED);
@@ -853,18 +922,11 @@ setup_sparse(struct archive_read_disk *a,
for (;;) {
int i, r;
- r = ioctl(fd, FS_IOC_FIEMAP, fm);
+ r = ioctl(*fd, FS_IOC_FIEMAP, fm);
if (r < 0) {
- /* When errno is ENOTTY, it is better we should
- * return ARCHIVE_OK because an earlier version
- *(<2.6.28) cannot perfom FS_IOC_FIEMAP.
- * We should also check if errno is EOPNOTSUPP,
- * it means "Operation not supported". */
- if (errno != ENOTTY && errno != EOPNOTSUPP) {
- archive_set_error(&a->archive, errno,
- "FIEMAP failed");
- exit_sts = ARCHIVE_FAILED;
- }
+ /* When something error happens, it is better we
+ * should return ARCHIVE_OK because an earlier
+ * version(<2.6.28) cannot perfom FS_IOC_FIEMAP. */
goto exit_setup_sparse;
}
if (fm->fm_mapped_extents == 0)
@@ -896,8 +958,6 @@ setup_sparse(struct archive_read_disk *a,
break;
}
exit_setup_sparse:
- if (initial_fd != fd)
- close(fd);
return (exit_sts);
}
@@ -909,10 +969,9 @@ exit_setup_sparse:
static int
setup_sparse(struct archive_read_disk *a,
- struct archive_entry *entry, int fd)
+ struct archive_entry *entry, int *fd)
{
int64_t size;
- int initial_fd = fd;
off_t initial_off; /* FreeBSD/Solaris only, so off_t okay here */
off_t off_s, off_e; /* FreeBSD/Solaris only, so off_t okay here */
int exit_sts = ARCHIVE_OK;
@@ -923,22 +982,38 @@ setup_sparse(struct archive_read_disk *a,
return (ARCHIVE_OK);
/* Does filesystem support the reporting of hole ? */
- if (fd >= 0) {
- if (fpathconf(fd, _PC_MIN_HOLE_SIZE) <= 0)
+ if (*fd < 0 && a->tree != NULL) {
+ const char *path;
+
+ path = archive_entry_sourcepath(entry);
+ if (path == NULL)
+ path = archive_entry_pathname(entry);
+ *fd = a->open_on_current_dir(a->tree, path,
+ O_RDONLY | O_NONBLOCK);
+ if (*fd < 0) {
+ archive_set_error(&a->archive, errno,
+ "Can't open `%s'", path);
+ return (ARCHIVE_FAILED);
+ }
+ }
+
+ if (*fd >= 0) {
+ if (fpathconf(*fd, _PC_MIN_HOLE_SIZE) <= 0)
return (ARCHIVE_OK);
- initial_off = lseek(fd, 0, SEEK_CUR);
+ initial_off = lseek(*fd, 0, SEEK_CUR);
if (initial_off != 0)
- lseek(fd, 0, SEEK_SET);
+ lseek(*fd, 0, SEEK_SET);
} else {
const char *path;
path = archive_entry_sourcepath(entry);
if (path == NULL)
path = archive_entry_pathname(entry);
+
if (pathconf(path, _PC_MIN_HOLE_SIZE) <= 0)
return (ARCHIVE_OK);
- fd = open(path, O_RDONLY | O_NONBLOCK);
- if (fd < 0) {
+ *fd = open(path, O_RDONLY | O_NONBLOCK);
+ if (*fd < 0) {
archive_set_error(&a->archive, errno,
"Can't open `%s'", path);
return (ARCHIVE_FAILED);
@@ -949,7 +1024,7 @@ setup_sparse(struct archive_read_disk *a,
off_s = 0;
size = archive_entry_size(entry);
while (off_s < size) {
- off_s = lseek(fd, off_s, SEEK_DATA);
+ off_s = lseek(*fd, off_s, SEEK_DATA);
if (off_s == (off_t)-1) {
if (errno == ENXIO)
break;/* no more hole */
@@ -958,10 +1033,10 @@ setup_sparse(struct archive_read_disk *a,
exit_sts = ARCHIVE_FAILED;
goto exit_setup_sparse;
}
- off_e = lseek(fd, off_s, SEEK_HOLE);
- if (off_s == (off_t)-1) {
+ off_e = lseek(*fd, off_s, SEEK_HOLE);
+ if (off_e == (off_t)-1) {
if (errno == ENXIO) {
- off_e = lseek(fd, 0, SEEK_END);
+ off_e = lseek(*fd, 0, SEEK_END);
if (off_e != (off_t)-1)
break;/* no more data */
}
@@ -977,10 +1052,7 @@ setup_sparse(struct archive_read_disk *a,
off_s = off_e;
}
exit_setup_sparse:
- if (initial_fd != fd)
- close(fd);
- else
- lseek(fd, initial_off, SEEK_SET);
+ lseek(*fd, initial_off, SEEK_SET);
return (exit_sts);
}
@@ -991,7 +1063,7 @@ exit_setup_sparse:
*/
static int
setup_sparse(struct archive_read_disk *a,
- struct archive_entry *entry, int fd)
+ struct archive_entry *entry, int *fd)
{
(void)a; /* UNUSED */
(void)entry; /* UNUSED */
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-09 21:47:55 +0000