diff options
Diffstat (limited to 'lib/libarchive/archive_write_set_format_ar.c')
| -rw-r--r-- | lib/libarchive/archive_write_set_format_ar.c | 550 |
1 files changed, 0 insertions, 550 deletions
diff --git a/lib/libarchive/archive_write_set_format_ar.c b/lib/libarchive/archive_write_set_format_ar.c deleted file mode 100644 index cb8ddaa..0000000 --- a/lib/libarchive/archive_write_set_format_ar.c +++ /dev/null @@ -1,550 +0,0 @@ -/*- - * Copyright (c) 2007 Kai Wang - * Copyright (c) 2007 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 - * in this position and unchanged. - * 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_ERRNO_H -#include <errno.h> -#endif -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#endif -#ifdef HAVE_STRING_H -#include <string.h> -#endif - -#include "archive.h" -#include "archive_entry.h" -#include "archive_private.h" -#include "archive_write_private.h" - -struct ar_w { - uint64_t entry_bytes_remaining; - uint64_t entry_padding; - int is_strtab; - int has_strtab; - char *strtab; -}; - -/* - * Define structure of the "ar" header. - */ -#define AR_name_offset 0 -#define AR_name_size 16 -#define AR_date_offset 16 -#define AR_date_size 12 -#define AR_uid_offset 28 -#define AR_uid_size 6 -#define AR_gid_offset 34 -#define AR_gid_size 6 -#define AR_mode_offset 40 -#define AR_mode_size 8 -#define AR_size_offset 48 -#define AR_size_size 10 -#define AR_fmag_offset 58 -#define AR_fmag_size 2 - -static int archive_write_set_format_ar(struct archive_write *); -static int archive_write_ar_header(struct archive_write *, - struct archive_entry *); -static ssize_t archive_write_ar_data(struct archive_write *, - const void *buff, size_t s); -static int archive_write_ar_destroy(struct archive_write *); -static int archive_write_ar_finish(struct archive_write *); -static int archive_write_ar_finish_entry(struct archive_write *); -static const char *ar_basename(const char *path); -static int format_octal(int64_t v, char *p, int s); -static int format_decimal(int64_t v, char *p, int s); - -int -archive_write_set_format_ar_bsd(struct archive *_a) -{ - struct archive_write *a = (struct archive_write *)_a; - int r = archive_write_set_format_ar(a); - if (r == ARCHIVE_OK) { - a->archive.archive_format = ARCHIVE_FORMAT_AR_BSD; - a->archive.archive_format_name = "ar (BSD)"; - } - return (r); -} - -int -archive_write_set_format_ar_svr4(struct archive *_a) -{ - struct archive_write *a = (struct archive_write *)_a; - int r = archive_write_set_format_ar(a); - if (r == ARCHIVE_OK) { - a->archive.archive_format = ARCHIVE_FORMAT_AR_GNU; - a->archive.archive_format_name = "ar (GNU/SVR4)"; - } - return (r); -} - -/* - * Generic initialization. - */ -static int -archive_write_set_format_ar(struct archive_write *a) -{ - struct ar_w *ar; - - /* If someone else was already registered, unregister them. */ - if (a->format_destroy != NULL) - (a->format_destroy)(a); - - ar = (struct ar_w *)malloc(sizeof(*ar)); - if (ar == NULL) { - archive_set_error(&a->archive, ENOMEM, "Can't allocate ar data"); - return (ARCHIVE_FATAL); - } - memset(ar, 0, sizeof(*ar)); - a->format_data = ar; - - a->format_name = "ar"; - a->format_write_header = archive_write_ar_header; - a->format_write_data = archive_write_ar_data; - a->format_finish = archive_write_ar_finish; - a->format_destroy = archive_write_ar_destroy; - a->format_finish_entry = archive_write_ar_finish_entry; - return (ARCHIVE_OK); -} - -static int -archive_write_ar_header(struct archive_write *a, struct archive_entry *entry) -{ - int ret, append_fn; - char buff[60]; - char *ss, *se; - struct ar_w *ar; - const char *pathname; - const char *filename; - int64_t size; - - append_fn = 0; - ar = (struct ar_w *)a->format_data; - ar->is_strtab = 0; - filename = NULL; - size = archive_entry_size(entry); - - - /* - * Reject files with empty name. - */ - pathname = archive_entry_pathname(entry); - if (*pathname == '\0') { - archive_set_error(&a->archive, EINVAL, - "Invalid filename"); - return (ARCHIVE_WARN); - } - - /* - * If we are now at the beginning of the archive, - * we need first write the ar global header. - */ - if (a->archive.file_position == 0) - (a->compressor.write)(a, "!<arch>\n", 8); - - memset(buff, ' ', 60); - strncpy(&buff[AR_fmag_offset], "`\n", 2); - - if (strcmp(pathname, "/") == 0 ) { - /* Entry is archive symbol table in GNU format */ - buff[AR_name_offset] = '/'; - goto stat; - } - if (strcmp(pathname, "__.SYMDEF") == 0) { - /* Entry is archive symbol table in BSD format */ - strncpy(buff + AR_name_offset, "__.SYMDEF", 9); - goto stat; - } - if (strcmp(pathname, "//") == 0) { - /* - * Entry is archive filename table, inform that we should - * collect strtab in next _data call. - */ - ar->is_strtab = 1; - buff[AR_name_offset] = buff[AR_name_offset + 1] = '/'; - /* - * For archive string table, only ar_size filed should - * be set. - */ - goto size; - } - - /* - * Otherwise, entry is a normal archive member. - * Strip leading paths from filenames, if any. - */ - if ((filename = ar_basename(pathname)) == NULL) { - /* Reject filenames with trailing "/" */ - archive_set_error(&a->archive, EINVAL, - "Invalid filename"); - return (ARCHIVE_WARN); - } - - if (a->archive.archive_format == ARCHIVE_FORMAT_AR_GNU) { - /* - * SVR4/GNU variant use a "/" to mark then end of the filename, - * make it possible to have embedded spaces in the filename. - * So, the longest filename here (without extension) is - * actually 15 bytes. - */ - if (strlen(filename) <= 15) { - strncpy(&buff[AR_name_offset], - filename, strlen(filename)); - buff[AR_name_offset + strlen(filename)] = '/'; - } else { - /* - * For filename longer than 15 bytes, GNU variant - * makes use of a string table and instead stores the - * offset of the real filename to in the ar_name field. - * The string table should have been written before. - */ - if (ar->has_strtab <= 0) { - archive_set_error(&a->archive, EINVAL, - "Can't find string table"); - return (ARCHIVE_WARN); - } - - se = (char *)malloc(strlen(filename) + 3); - if (se == NULL) { - archive_set_error(&a->archive, ENOMEM, - "Can't allocate filename buffer"); - return (ARCHIVE_FATAL); - } - - strncpy(se, filename, strlen(filename)); - strcpy(se + strlen(filename), "/\n"); - - ss = strstr(ar->strtab, se); - free(se); - - if (ss == NULL) { - archive_set_error(&a->archive, EINVAL, - "Invalid string table"); - return (ARCHIVE_WARN); - } - - /* - * GNU variant puts "/" followed by digits into - * ar_name field. These digits indicates the real - * filename string's offset to the string table. - */ - buff[AR_name_offset] = '/'; - if (format_decimal(ss - ar->strtab, - buff + AR_name_offset + 1, - AR_name_size - 1)) { - archive_set_error(&a->archive, ERANGE, - "string table offset too large"); - return (ARCHIVE_WARN); - } - } - } else if (a->archive.archive_format == ARCHIVE_FORMAT_AR_BSD) { - /* - * BSD variant: for any file name which is more than - * 16 chars or contains one or more embedded space(s), the - * string "#1/" followed by the ASCII length of the name is - * put into the ar_name field. The file size (stored in the - * ar_size field) is incremented by the length of the name. - * The name is then written immediately following the - * archive header. - */ - if (strlen(filename) <= 16 && strchr(filename, ' ') == NULL) { - strncpy(&buff[AR_name_offset], filename, strlen(filename)); - buff[AR_name_offset + strlen(filename)] = ' '; - } - else { - strncpy(buff + AR_name_offset, "#1/", 3); - if (format_decimal(strlen(filename), - buff + AR_name_offset + 3, - AR_name_size - 3)) { - archive_set_error(&a->archive, ERANGE, - "File name too long"); - return (ARCHIVE_WARN); - } - append_fn = 1; - size += strlen(filename); - } - } - -stat: - if (format_decimal(archive_entry_mtime(entry), buff + AR_date_offset, AR_date_size)) { - archive_set_error(&a->archive, ERANGE, - "File modification time too large"); - return (ARCHIVE_WARN); - } - if (format_decimal(archive_entry_uid(entry), buff + AR_uid_offset, AR_uid_size)) { - archive_set_error(&a->archive, ERANGE, - "Numeric user ID too large"); - return (ARCHIVE_WARN); - } - if (format_decimal(archive_entry_gid(entry), buff + AR_gid_offset, AR_gid_size)) { - archive_set_error(&a->archive, ERANGE, - "Numeric group ID too large"); - return (ARCHIVE_WARN); - } - if (format_octal(archive_entry_mode(entry), buff + AR_mode_offset, AR_mode_size)) { - archive_set_error(&a->archive, ERANGE, - "Numeric mode too large"); - return (ARCHIVE_WARN); - } - /* - * Sanity Check: A non-pseudo archive member should always be - * a regular file. - */ - if (filename != NULL && archive_entry_filetype(entry) != AE_IFREG) { - archive_set_error(&a->archive, EINVAL, - "Regular file required for non-pseudo member"); - return (ARCHIVE_WARN); - } - -size: - if (format_decimal(size, buff + AR_size_offset, AR_size_size)) { - archive_set_error(&a->archive, ERANGE, - "File size out of range"); - return (ARCHIVE_WARN); - } - - ret = (a->compressor.write)(a, buff, 60); - if (ret != ARCHIVE_OK) - return (ret); - - ar->entry_bytes_remaining = size; - ar->entry_padding = ar->entry_bytes_remaining % 2; - - if (append_fn > 0) { - ret = (a->compressor.write)(a, filename, strlen(filename)); - if (ret != ARCHIVE_OK) - return (ret); - ar->entry_bytes_remaining -= strlen(filename); - } - - return (ARCHIVE_OK); -} - -static ssize_t -archive_write_ar_data(struct archive_write *a, const void *buff, size_t s) -{ - struct ar_w *ar; - int ret; - - ar = (struct ar_w *)a->format_data; - if (s > ar->entry_bytes_remaining) - s = ar->entry_bytes_remaining; - - if (ar->is_strtab > 0) { - if (ar->has_strtab > 0) { - archive_set_error(&a->archive, EINVAL, - "More than one string tables exist"); - return (ARCHIVE_WARN); - } - - ar->strtab = (char *)malloc(s); - if (ar->strtab == NULL) { - archive_set_error(&a->archive, ENOMEM, - "Can't allocate strtab buffer"); - return (ARCHIVE_FATAL); - } - strncpy(ar->strtab, buff, s); - ar->has_strtab = 1; - } - - ret = (a->compressor.write)(a, buff, s); - if (ret != ARCHIVE_OK) - return (ret); - - ar->entry_bytes_remaining -= s; - return (s); -} - -static int -archive_write_ar_destroy(struct archive_write *a) -{ - struct ar_w *ar; - - ar = (struct ar_w *)a->format_data; - - if (ar == NULL) - return (ARCHIVE_OK); - - if (ar->has_strtab > 0) { - free(ar->strtab); - ar->strtab = NULL; - } - - free(ar); - a->format_data = NULL; - return (ARCHIVE_OK); -} - -static int -archive_write_ar_finish(struct archive_write *a) -{ - int ret; - - /* - * If we haven't written anything yet, we need to write - * the ar global header now to make it a valid ar archive. - */ - if (a->archive.file_position == 0) { - ret = (a->compressor.write)(a, "!<arch>\n", 8); - return (ret); - } - - return (ARCHIVE_OK); -} - -static int -archive_write_ar_finish_entry(struct archive_write *a) -{ - struct ar_w *ar; - int ret; - - ar = (struct ar_w *)a->format_data; - - if (ar->entry_bytes_remaining != 0) { - archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, - "Entry remaining bytes larger than 0"); - return (ARCHIVE_WARN); - } - - if (ar->entry_padding == 0) { - return (ARCHIVE_OK); - } - - if (ar->entry_padding != 1) { - archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, - "Padding wrong size: %d should be 1 or 0", - (int)ar->entry_padding); - return (ARCHIVE_WARN); - } - - ret = (a->compressor.write)(a, "\n", 1); - return (ret); -} - -/* - * Format a number into the specified field using base-8. - * NB: This version is slightly different from the one in - * _ustar.c - */ -static int -format_octal(int64_t v, char *p, int s) -{ - int len; - char *h; - - len = s; - h = p; - - /* Octal values can't be negative, so use 0. */ - if (v < 0) { - while (len-- > 0) - *p++ = '0'; - return (-1); - } - - p += s; /* Start at the end and work backwards. */ - do { - *--p = (char)('0' + (v & 7)); - v >>= 3; - } while (--s > 0 && v > 0); - - if (v == 0) { - memmove(h, p, len - s); - p = h + len - s; - while (s-- > 0) - *p++ = ' '; - return (0); - } - /* If it overflowed, fill field with max value. */ - while (len-- > 0) - *p++ = '7'; - - return (-1); -} - -/* - * Format a number into the specified field using base-10. - */ -static int -format_decimal(int64_t v, char *p, int s) -{ - int len; - char *h; - - len = s; - h = p; - - /* Negative values in ar header are meaningless , so use 0. */ - if (v < 0) { - while (len-- > 0) - *p++ = '0'; - return (-1); - } - - p += s; - do { - *--p = (char)('0' + (v % 10)); - v /= 10; - } while (--s > 0 && v > 0); - - if (v == 0) { - memmove(h, p, len - s); - p = h + len - s; - while (s-- > 0) - *p++ = ' '; - return (0); - } - /* If it overflowed, fill field with max value. */ - while (len-- > 0) - *p++ = '9'; - - return (-1); -} - -static const char * -ar_basename(const char *path) -{ - const char *endp, *startp; - - endp = path + strlen(path) - 1; - /* - * For filename with trailing slash(es), we return - * NULL indicating an error. - */ - if (*endp == '/') - return (NULL); - - /* Find the start of the base */ - startp = endp; - while (startp > path && *(startp - 1) != '/') - startp--; - - return (startp); -} |
