diff options
Diffstat (limited to 'Utilities/cmlibarchive/libarchive/archive_write_disk_windows.c')
| -rw-r--r-- | Utilities/cmlibarchive/libarchive/archive_write_disk_windows.c | 64 |
1 files changed, 33 insertions, 31 deletions
diff --git a/Utilities/cmlibarchive/libarchive/archive_write_disk_windows.c b/Utilities/cmlibarchive/libarchive/archive_write_disk_windows.c index 0c60017..1b12a29 100644 --- a/Utilities/cmlibarchive/libarchive/archive_write_disk_windows.c +++ b/Utilities/cmlibarchive/libarchive/archive_write_disk_windows.c @@ -213,7 +213,7 @@ static int check_symlinks(struct archive_write_disk *); static int create_filesystem_object(struct archive_write_disk *); static struct fixup_entry *current_fixup(struct archive_write_disk *, const wchar_t *pathname); -static int cleanup_pathname(struct archive_write_disk *); +static int cleanup_pathname(struct archive_write_disk *, wchar_t *); static int create_dir(struct archive_write_disk *, wchar_t *); static int create_parent_dir(struct archive_write_disk *, wchar_t *); static int la_chmod(const wchar_t *, mode_t); @@ -238,8 +238,6 @@ static struct fixup_entry *sort_dir_list(struct fixup_entry *p); static ssize_t write_data_block(struct archive_write_disk *, const char *, size_t); -static struct archive_vtable *archive_write_disk_vtable(void); - static int _archive_write_disk_close(struct archive *); static int _archive_write_disk_free(struct archive *); static int _archive_write_disk_header(struct archive *, @@ -628,7 +626,7 @@ la_CreateSymbolicLinkW(const wchar_t *linkname, const wchar_t *target, static BOOLEAN (WINAPI *f)(LPCWSTR, LPCWSTR, DWORD); static int set; wchar_t *ttarget, *p; - int len; + size_t len; DWORD attrs = 0; DWORD flags = 0; DWORD newflags = 0; @@ -759,25 +757,16 @@ lazy_stat(struct archive_write_disk *a) return (ARCHIVE_WARN); } -static struct archive_vtable * -archive_write_disk_vtable(void) -{ - static struct archive_vtable av; - static int inited = 0; - - if (!inited) { - av.archive_close = _archive_write_disk_close; - av.archive_filter_bytes = _archive_write_disk_filter_bytes; - av.archive_free = _archive_write_disk_free; - av.archive_write_header = _archive_write_disk_header; - av.archive_write_finish_entry - = _archive_write_disk_finish_entry; - av.archive_write_data = _archive_write_disk_data; - av.archive_write_data_block = _archive_write_disk_data_block; - inited = 1; - } - return (&av); -} +static const struct archive_vtable +archive_write_disk_vtable = { + .archive_close = _archive_write_disk_close, + .archive_filter_bytes = _archive_write_disk_filter_bytes, + .archive_free = _archive_write_disk_free, + .archive_write_header = _archive_write_disk_header, + .archive_write_finish_entry = _archive_write_disk_finish_entry, + .archive_write_data = _archive_write_disk_data, + .archive_write_data_block = _archive_write_disk_data_block, +}; static int64_t _archive_write_disk_filter_bytes(struct archive *_a, int n) @@ -854,7 +843,7 @@ _archive_write_disk_header(struct archive *_a, struct archive_entry *entry) * dir restores; the dir restore logic otherwise gets messed * up by nonsense like "dir/.". */ - ret = cleanup_pathname(a); + ret = cleanup_pathname(a, a->name); if (ret != ARCHIVE_OK) return (ret); @@ -1373,7 +1362,7 @@ archive_write_disk_new(void) a->archive.magic = ARCHIVE_WRITE_DISK_MAGIC; /* We're ready to write a header immediately. */ a->archive.state = ARCHIVE_STATE_HEADER; - a->archive.vtable = archive_write_disk_vtable(); + a->archive.vtable = &archive_write_disk_vtable; a->start_time = time(NULL); /* Query and restore the umask. */ umask(a->user_umask = umask(0)); @@ -1671,9 +1660,22 @@ create_filesystem_object(struct archive_write_disk *a) /* Since link(2) and symlink(2) don't handle modes, we're done here. */ linkname = archive_entry_hardlink_w(a->entry); if (linkname != NULL) { - wchar_t *linkfull, *namefull; - - linkfull = __la_win_permissive_name_w(linkname); + wchar_t *linksanitized, *linkfull, *namefull; + size_t l = (wcslen(linkname) + 1) * sizeof(wchar_t); + linksanitized = malloc(l); + if (linksanitized == NULL) { + archive_set_error(&a->archive, ENOMEM, + "Can't allocate memory for hardlink target"); + return (-1); + } + memcpy(linksanitized, linkname, l); + r = cleanup_pathname(a, linksanitized); + if (r != ARCHIVE_OK) { + free(linksanitized); + return (r); + } + linkfull = __la_win_permissive_name_w(linksanitized); + free(linksanitized); namefull = __la_win_permissive_name_w(a->name); if (linkfull == NULL || namefull == NULL) { errno = EINVAL; @@ -2184,12 +2186,12 @@ guidword(wchar_t *p, int n) * set) any '..' in the path. */ static int -cleanup_pathname(struct archive_write_disk *a) +cleanup_pathname(struct archive_write_disk *a, wchar_t *name) { wchar_t *dest, *src, *p, *top; wchar_t separator = L'\0'; - p = a->name; + p = name; if (*p == L'\0') { archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, "Invalid empty pathname"); @@ -2201,7 +2203,7 @@ cleanup_pathname(struct archive_write_disk *a) if (*p == L'/') *p = L'\\'; } - p = a->name; + p = name; /* Skip leading "\\.\" or "\\?\" or "\\?\UNC\" or * "\\?\Volume{GUID}\" |