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authorDenys Vlasenko <vda.linux@googlemail.com>2009-08-31 05:15:21 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2009-08-31 05:15:21 +0200
commit44f174e61b9f02e1d9210d292886498cee4aced7 (patch)
tree331109b8cf6d195216a1e8db041f65ca45b26a9b
parenta00329ca8edd29c62084e400aa972cfcd0a8ab02 (diff)
downloadbusybox-44f174e61b9f02e1d9210d292886498cee4aced7.tar.gz
uniq: shave off whole 10 bytes off, oh my
text data bss dec hex filename 823673 458 6956 831087 cae6f busybox_old 823663 458 6956 831077 cae65 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--coreutils/uniq.c45
1 files changed, 22 insertions, 23 deletions
diff --git a/coreutils/uniq.c b/coreutils/uniq.c
index 910f46e15..e566dc1bc 100644
--- a/coreutils/uniq.c
+++ b/coreutils/uniq.c
@@ -12,20 +12,6 @@
#include "libbb.h"
-static void xgetoptfile_uniq_s(const char *n, int fd)
-{
- if (n == NULL)
- return;
- if ((n[0] == '-') && !n[1])
- return;
- /* close(fd); - optimization */
- xmove_fd(
- xopen3(n,
- (fd == STDIN_FILENO) ? O_RDONLY : (O_WRONLY | O_CREAT | O_TRUNC),
- 0666),
- fd);
-}
-
int uniq_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int uniq_main(int argc UNUSED_PARAM, char **argv)
{
@@ -51,15 +37,25 @@ int uniq_main(int argc UNUSED_PARAM, char **argv)
opt = getopt32(argv, "cduf:s:w:", &skip_fields, &skip_chars, &max_chars);
argv += optind;
- input_filename = *argv;
+ input_filename = argv[0];
+ if (input_filename) {
+ const char *output;
- xgetoptfile_uniq_s(*argv, STDIN_FILENO);
- if (*argv) {
- ++argv;
- }
- xgetoptfile_uniq_s(*argv, STDOUT_FILENO);
- if (*argv && argv[1]) {
- bb_show_usage();
+ if (input_filename[0] != '-' || input_filename[1]) {
+ close(STDIN_FILENO); /* == 0 */
+ xopen(input_filename, O_RDONLY); /* fd will be 0 */
+ }
+ output = argv[1];
+ if (output) {
+ if (argv[2])
+ bb_show_usage();
+ if (output[0] != '-' || output[1]) {
+ // Won't work with "uniq - FILE" and closed stdin:
+ //close(STDOUT_FILENO);
+ //xopen3(output, O_WRONLY | O_CREAT | O_TRUNC, 0666);
+ xmove_fd(xopen3(output, O_WRONLY | O_CREAT | O_TRUNC, 0666), STDOUT_FILENO);
+ }
+ }
}
cur_compare = cur_line = NULL; /* prime the pump */
@@ -95,7 +91,10 @@ int uniq_main(int argc UNUSED_PARAM, char **argv)
if (old_line) {
if (!(opt & (OPT_d << !!dups))) { /* (if dups, opt & OPT_u) */
- printf("\0%lu " + (opt & 1), dups + 1); /* 1 == OPT_c */
+ if (opt & OPT_c) {
+ /* %7lu matches GNU coreutils 6.9 */
+ printf("%7lu ", dups + 1);
+ }
printf("%s\n", old_line);
}
free(old_line);