diff options
| author | Alexander Shishkin | 2010-03-15 15:38:09 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2010-03-15 15:38:09 +0100 |
| commit | 535584c750820dd6c36011697f9ef89fe0a0698c (patch) | |
| tree | 6c682a7a6ca7d740529201c759fa4e64d9622797 /archival/libunarchive | |
| parent | 814da220a5d451c036c9871094253366372676e0 (diff) | |
| download | busybox-535584c750820dd6c36011697f9ef89fe0a0698c.zip busybox-535584c750820dd6c36011697f9ef89fe0a0698c.tar.gz | |
ar: add archive creation support
function old new delta
ar_main 184 542 +358
output_ar_header - 166 +166
copy_data - 54 +54
filter_replaceable - 19 +19
get_header_ar 409 414 +5
header_verbose_list_ar 85 88 +3
static.msg_unsupported_err 28 - -28
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 3/0 up/down: 605/-28) Total: 577 bytes
Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'archival/libunarchive')
| -rw-r--r-- | archival/libunarchive/get_header_ar.c | 13 | ||||
| -rw-r--r-- | archival/libunarchive/unpack_ar_archive.c | 7 |
2 files changed, 7 insertions, 13 deletions
diff --git a/archival/libunarchive/get_header_ar.c b/archival/libunarchive/get_header_ar.c index 2f38279..dbc5ec0 100644 --- a/archival/libunarchive/get_header_ar.c +++ b/archival/libunarchive/get_header_ar.c @@ -6,6 +6,7 @@ #include "libbb.h" #include "unarchive.h" +#include "ar.h" static unsigned read_num(const char *str, int base) { @@ -23,15 +24,7 @@ char FAST_FUNC get_header_ar(archive_handle_t *archive_handle) unsigned size; union { char raw[60]; - struct { - char name[16]; - char date[12]; - char uid[6]; - char gid[6]; - char mode[8]; - char size[10]; - char magic[2]; - } formatted; + struct ar_header formatted; } ar; #if ENABLE_FEATURE_AR_LONG_FILENAMES static char *ar_long_names; @@ -55,13 +48,13 @@ char FAST_FUNC get_header_ar(archive_handle_t *archive_handle) } archive_handle->offset += 60; - /* align the headers based on the header magic */ if (ar.formatted.magic[0] != '`' || ar.formatted.magic[1] != '\n') bb_error_msg_and_die("invalid ar header"); /* FIXME: more thorough routine would be in order here * (we have something like that in tar) * but for now we are lax. */ + ar.formatted.magic[0] = '\0'; /* else 4G-2 file will have size="4294967294`\n..." */ typed->size = size = read_num(ar.formatted.size, 10); /* special filenames have '/' as the first character */ diff --git a/archival/libunarchive/unpack_ar_archive.c b/archival/libunarchive/unpack_ar_archive.c index dc2eec2..300d10e 100644 --- a/archival/libunarchive/unpack_ar_archive.c +++ b/archival/libunarchive/unpack_ar_archive.c @@ -5,16 +5,17 @@ #include "libbb.h" #include "unarchive.h" +#include "ar.h" void FAST_FUNC unpack_ar_archive(archive_handle_t *ar_archive) { char magic[7]; - xread(ar_archive->src_fd, magic, 7); - if (strncmp(magic, "!<arch>", 7) != 0) { + xread(ar_archive->src_fd, magic, AR_MAGIC_LEN); + if (strncmp(magic, AR_MAGIC, AR_MAGIC_LEN) != 0) { bb_error_msg_and_die("invalid ar magic"); } - ar_archive->offset += 7; + ar_archive->offset += AR_MAGIC_LEN; while (get_header_ar(ar_archive) == EXIT_SUCCESS) continue; |