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| author | Paul Fox <pgf@brightstareng.com> | 2005-07-20 19:46:32 +0000 |
|---|---|---|
| committer | Paul Fox <pgf@brightstareng.com> | 2005-07-20 19:46:32 +0000 |
| commit | 4905434b8aead249d6bdd134d2fbd8c06dfcc059 (patch) | |
| tree | 663e7067e0fdd7c81b60260d60176317b3b3f890 /coreutils/tail.c | |
| parent | 982d35ffa2e4ee673bb74f1984d585108f4bf4c2 (diff) | |
| download | busybox-w32-4905434b8aead249d6bdd134d2fbd8c06dfcc059.tar.gz busybox-w32-4905434b8aead249d6bdd134d2fbd8c06dfcc059.tar.bz2 busybox-w32-4905434b8aead249d6bdd134d2fbd8c06dfcc059.zip | |
applying fix for:
0000265: tail -f should keep following files even if they
were truncated
Diffstat (limited to 'coreutils/tail.c')
| -rw-r--r-- | coreutils/tail.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/coreutils/tail.c b/coreutils/tail.c index e3f89d2ee..d49539916 100644 --- a/coreutils/tail.c +++ b/coreutils/tail.c | |||
| @@ -79,7 +79,19 @@ static void tail_xbb_full_write(const char *buf, size_t len) | |||
| 79 | static ssize_t tail_read(int fd, char *buf, size_t count) | 79 | static ssize_t tail_read(int fd, char *buf, size_t count) |
| 80 | { | 80 | { |
| 81 | ssize_t r; | 81 | ssize_t r; |
| 82 | off_t current,end; | ||
| 83 | struct stat sbuf; | ||
| 84 | int ret; | ||
| 82 | 85 | ||
| 86 | end = current = lseek (fd, 0, SEEK_CUR); | ||
| 87 | if (!fstat(fd, &sbuf)){ | ||
| 88 | end = sbuf.st_size; | ||
| 89 | } | ||
| 90 | if ( end < current) { | ||
| 91 | lseek(fd, 0, SEEK_SET); | ||
| 92 | } else { | ||
| 93 | lseek(fd, current, SEEK_SET); | ||
| 94 | } | ||
| 83 | if ((r = safe_read(fd, buf, count)) < 0) { | 95 | if ((r = safe_read(fd, buf, count)) < 0) { |
| 84 | bb_perror_msg("read"); | 96 | bb_perror_msg("read"); |
| 85 | status = EXIT_FAILURE; | 97 | status = EXIT_FAILURE; |