From 62a90cdd7435f09f4bb8673e8b7b213067f9d5cc Mon Sep 17 00:00:00 2001 From: Denis Vlasenko Date: Mon, 17 Mar 2008 09:07:36 +0000 Subject: *: shrink by using [f]open_or_warn_stdin where appropriate function old new delta lsattr_main 62 143 +81 open_or_warn_stdin - 36 +36 fclose_if_not_stdin 20 47 +27 xfopen_stdin - 20 +20 tac_main 336 356 +20 cksum_main 249 259 +10 bb_argv_dash - 8 +8 su_main 448 455 +7 cmp_main 630 633 +3 passwd_main 1072 1074 +2 uudecode_main 317 315 -2 text_yank 110 108 -2 handle_incoming_and_exit 2653 2651 -2 flags 5 1 -4 write_leases 235 230 -5 fopen_or_warn_stdin 48 42 -6 fold_main 648 642 -6 static.argv_dash 8 - -8 sum_main 142 128 -14 tail_main 1237 1221 -16 sed_main 711 695 -16 cmp_xfopen_input 17 - -17 bb_cat 113 96 -17 catv_main 328 306 -22 strings_main 457 434 -23 hash_file 298 274 -24 sum_file 353 325 -28 sort_main 904 859 -45 expand_main 736 686 -50 cut_main 1116 1065 -51 md5_sha1_sum_main 549 493 -56 lsattr_args 90 - -90 read_stduu 408 255 -153 ------------------------------------------------------------------------------ (add/remove: 3/3 grow/shrink: 7/20 up/down: 214/-657) Total: -443 bytes text data bss dec hex filename 797417 658 7428 805503 c4a7f busybox_old 796973 658 7428 805059 c48c3 busybox_unstripped --- libbb/wfopen_input.c | 25 +++++++++++++++++++++---- 1 file changed, 21 insertions(+), 4 deletions(-) (limited to 'libbb/wfopen_input.c') diff --git a/libbb/wfopen_input.c b/libbb/wfopen_input.c index 1b4928e1f..a7c1c32f5 100644 --- a/libbb/wfopen_input.c +++ b/libbb/wfopen_input.c @@ -10,8 +10,6 @@ /* A number of applets need to open a file for reading, where the filename * is a command line arg. Since often that arg is '-' (meaning stdin), * we avoid testing everywhere by consolidating things in this routine. - * - * Note: we also consider "" to mean stdin (for 'cmp' at least). */ #include "libbb.h" @@ -21,11 +19,30 @@ FILE *fopen_or_warn_stdin(const char *filename) FILE *fp = stdin; if (filename != bb_msg_standard_input - && filename[0] && NOT_LONE_DASH(filename) ) { fp = fopen_or_warn(filename, "r"); } - return fp; } + +FILE *xfopen_stdin(const char *filename) +{ + FILE *fp = fopen_or_warn_stdin(filename); + if (fp) + return fp; + xfunc_die(); /* We already output an error message. */ +} + +int open_or_warn_stdin(const char *filename) +{ + int fd = STDIN_FILENO; + + if (filename != bb_msg_standard_input + && NOT_LONE_DASH(filename) + ) { + fd = open_or_warn(filename, O_RDONLY); + } + + return fd; +} -- cgit v1.2.3