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| author | Paul Eggert <eggert@cs.ucla.edu> | 2025-07-22 22:05:17 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2025-08-03 19:48:04 -0700 |
| commit | c667ca229f3bed2b6d2ea16312f607d8d385e4c3 (patch) | |
| tree | 2d1a1bac50ee9a7fae53a0064350ee82043be77b | |
| parent | maint: don’t lseek memory objects (diff) | |
| download | coreutils-c667ca229f3bed2b6d2ea16312f607d8d385e4c3.tar.gz coreutils-c667ca229f3bed2b6d2ea16312f607d8d385e4c3.zip | |
tail: simplify -c+ on regular files
* src/tail.c (tail_bytes): Simplify the -c+N case by treating
regular files like other files; if the lseek fails for whatever
reason, fall back on the unoptimized version instead of reporting
a fatal error.
| -rw-r--r-- | src/tail.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/src/tail.c b/src/tail.c index ac66c9aa5..caf67a050 100644 --- a/src/tail.c +++ b/src/tail.c @@ -1858,9 +1858,7 @@ tail_bytes (char const *pretty_filename, int fd, uintmax_t n_bytes, if (from_start) { if (! presume_input_pipe && n_bytes <= OFF_T_MAX - && ((S_ISREG (stats.st_mode) - && xlseek (fd, n_bytes, SEEK_CUR, pretty_filename) >= 0) - || lseek (fd, n_bytes, SEEK_CUR) != -1)) + && 0 <= lseek (fd, n_bytes, SEEK_CUR)) *read_pos += n_bytes; else { |