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zcat: complain if input is not compressed

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function                                             old     new   delta
buffer_fill_and_print                                178     191     +13
varvalue                                             735     743      +8
bbunpack                                             747     755      +8
open_zipped                                           85      89      +4
xmalloc_open_zipped_read_close                        61      63      +2
get_addr_1                                           240     242      +2
fbsplash_main                                       1228    1230      +2
pstree_main                                          322     321      -1
builtin_type                                         121     119      -2
do_load                                              954     926     -28
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 7/3 up/down: 39/-31)              Total: 8 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2014-02-02 02:06:38 +01:00
parent f1999b5a9d
commit 640ce3de07
9 changed files with 17 additions and 25 deletions
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5
archival/bbunzip.c
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@ -72,7 +72,8 @@ int FAST_FUNC bbunpack(char **argv,
goto err;
} else {
/* "clever zcat" with FILE */
int fd = open_zipped(filename);
/* fail_if_not_compressed because zcat refuses uncompressed input */
int fd = open_zipped(filename, /*fail_if_not_compressed:*/ 1);
if (fd < 0)
goto err_name;
xmove_fd(fd, STDIN_FILENO);
@ -80,7 +81,7 @@ int FAST_FUNC bbunpack(char **argv,
} else
if (option_mask32 & SEAMLESS_MAGIC) {
/* "clever zcat" on stdin */
if (setup_unzip_on_fd(STDIN_FILENO, /*fail_if_not_detected*/ 0))
if (setup_unzip_on_fd(STDIN_FILENO, /*fail_if_not_compressed*/ 1))
goto err;
}