mirror of
git://git.openwrt.org/openwrt/openwrt.git
synced 2024-12-13 18:34:53 +00:00
42 lines
1.1 KiB
Diff
42 lines
1.1 KiB
Diff
Index: busybox-1.7.2/coreutils/tail.c
|
|
===================================================================
|
|
--- busybox-1.7.2.orig/coreutils/tail.c 2007-10-30 15:34:59.000000000 -0500
|
|
+++ busybox-1.7.2/coreutils/tail.c 2007-10-30 15:35:06.000000000 -0500
|
|
@@ -47,13 +47,16 @@
|
|
static ssize_t tail_read(int fd, char *buf, size_t count)
|
|
{
|
|
ssize_t r;
|
|
- off_t current, end;
|
|
+ off_t current;
|
|
struct stat sbuf;
|
|
|
|
- end = current = lseek(fd, 0, SEEK_CUR);
|
|
- if (!fstat(fd, &sbuf))
|
|
- end = sbuf.st_size;
|
|
- lseek(fd, end < current ? 0 : current, SEEK_SET);
|
|
+ /* (A good comment is missing here) */
|
|
+ current = lseek(fd, 0, SEEK_CUR);
|
|
+ /* /proc files report zero st_size, don't lseek them. */
|
|
+ if (fstat(fd, &sbuf) == 0 && sbuf.st_size)
|
|
+ if (sbuf.st_size < current)
|
|
+ lseek(fd, 0, SEEK_SET);
|
|
+
|
|
r = safe_read(fd, buf, count);
|
|
if (r < 0) {
|
|
bb_perror_msg(bb_msg_read_error);
|
|
@@ -67,8 +70,12 @@
|
|
|
|
static unsigned eat_num(const char *p)
|
|
{
|
|
- if (*p == '-') p++;
|
|
- else if (*p == '+') { p++; G.status = EXIT_FAILURE; }
|
|
+ if (*p == '-')
|
|
+ p++;
|
|
+ else if (*p == '+') {
|
|
+ p++;
|
|
+ G.status = EXIT_FAILURE;
|
|
+ }
|
|
return xatou_sfx(p, tail_suffixes);
|
|
}
|
|
|