tail: fix tail +N

This commit is contained in:
Denis Vlasenko 2006-12-21 00:43:06 +00:00
parent 3f3190e34c
commit 6910741067

View File

@ -124,13 +124,13 @@ int tail_main(int argc, char **argv)
#if !ENABLE_DEBUG_YANK_SUSv2 || ENABLE_FEATURE_FANCY_TAIL
GET_COUNT:
#endif
from_top = 0;
if (*optarg == '+') {
++optarg;
from_top = 1;
}
count = xatol_sfx(optarg, tail_suffixes);
/* Note: Leading whitespace is an error trapped above. */
if (*optarg == '+') {
from_top = 1;
} else {
from_top = 0;
}
if (count < 0) {
count = -count;
}
@ -150,20 +150,18 @@ int tail_main(int argc, char **argv)
bb_show_usage();
}
}
argc -= optind;
argv += optind;
/* open all the files */
fds = xmalloc(sizeof(int) * (argc - optind + 1));
argv += optind;
fds = xmalloc(sizeof(int) * (argc + 1));
nfiles = i = 0;
if ((argc -= optind) == 0) {
if (argc == 0) {
struct stat statbuf;
if (!fstat(STDIN_FILENO, &statbuf) && S_ISFIFO(statbuf.st_mode)) {
follow = 0;
}
/* --argv; */
*argv = (char *) bb_msg_standard_input;
goto DO_STDIN;
}