diff options
| author | Denis Vlasenko <vda.linux@googlemail.com> | 2007-04-11 23:20:53 +0000 |
|---|---|---|
| committer | Denis Vlasenko <vda.linux@googlemail.com> | 2007-04-11 23:20:53 +0000 |
| commit | 50f7f446ecaadef6895a4ee601567e0b68330637 (patch) | |
| tree | a10f1d7fd192b8c7ee6cb3d5aa46a0295dd08f2a /coreutils/cat.c | |
| parent | d7c8196c1bba74d1e27ac9cb5e2eb57413daa463 (diff) | |
| download | busybox-50f7f446ecaadef6895a4ee601567e0b68330637.tar.gz | |
bb_full_fd_action: remove potential xmalloc from NOFORK path
cat: stop using stdio.h opens
libbb: introduce & use open[3]_or_warn
function old new delta
open3_or_warn - 54 +54
bb_cat 115 144 +29
open_or_warn - 25 +25
unlzma 2404 2412 +8
chattr_main 334 339 +5
xstrtoul_range_sfx 251 255 +4
telnet_main 1514 1510 -4
static.opt 4 - -4
qgravechar 122 118 -4
fuser_add_pid 61 54 -7
fuser_add_inode 154 147 -7
writeFileToTarball 1542 1534 -8
refresh 1156 1148 -8
do_show 856 846 -10
read_leases 212 200 -12
setup_redirects 236 222 -14
iproute_list_or_flush 1582 1568 -14
read_config 427 411 -16
write_leases 284 264 -20
hash_file 338 318 -20
copy_file 1760 1740 -20
do_iproute 2610 2588 -22
bb_full_fd_action 320 269 -51
open_to_or_warn 103 49 -54
fuser_main 1660 1596 -64
.rodata 131160 131096 -64
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 4/19 up/down: 125/-423) Total: -298 bytes
Diffstat (limited to 'coreutils/cat.c')
| -rw-r--r-- | coreutils/cat.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/coreutils/cat.c b/coreutils/cat.c index eb141dc79..ed3f33650 100644 --- a/coreutils/cat.c +++ b/coreutils/cat.c @@ -19,18 +19,21 @@ int bb_cat(char **argv) { static const char *const argv_dash[] = { "-", NULL }; - FILE *f; + int fd; int retval = EXIT_SUCCESS; if (!*argv) argv = (char**) &argv_dash; do { - f = fopen_or_warn_stdin(*argv); - if (f) { + fd = STDIN_FILENO; + if (!LONE_DASH(*argv)) + fd = open_or_warn(*argv, O_RDONLY); + if (fd >= 0) { /* This is not an xfunc - never exits */ - off_t r = bb_copyfd_eof(fileno(f), STDOUT_FILENO); - fclose_if_not_stdin(f); + off_t r = bb_copyfd_eof(fd, STDOUT_FILENO); + if (fd != STDIN_FILENO) + close(fd); if (r >= 0) continue; } |