diff options
Diffstat (limited to 'src/split.c')
| -rw-r--r-- | src/split.c | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/src/split.c b/src/split.c index 0b10600cd..676aa2e02 100644 --- a/src/split.c +++ b/src/split.c @@ -278,6 +278,14 @@ CHUNKS may be:\n\ static off_t input_file_size (int fd, struct stat const *st, char *buf, size_t bufsize) { + off_t cur = lseek (fd, 0, SEEK_CUR); + if (cur < 0) + { + if (errno == ESPIPE) + errno = 0; /* Suppress confusing seek error. */ + return -1; + } + off_t size = 0; do { @@ -290,19 +298,20 @@ input_file_size (int fd, struct stat const *st, char *buf, size_t bufsize) } while (size < bufsize); - /* The file contains at least BUFSIZE bytes. Infer its size via - st->st_size if this seems reliable, or via lseek if not. */ - off_t cur = lseek (fd, 0, SEEK_CUR); - off_t end; - if (cur < 0) - return -1; - if (cur < size) + /* Note we check st_size _after_ the read() above + because /proc files on GNU/Linux are seekable + but have st_size == 0. */ + if (st->st_size == 0) { - /* E.g., /dev/zero on GNU/Linux, where CUR is zero and SIZE == BUFSIZE. - Assume there is no limit to the file size. */ + /* We've filled the buffer, from a seekable file, + which has an st_size==0, E.g., /dev/zero on GNU/Linux. + Assume there is no limit to file size. */ errno = EOVERFLOW; return -1; } + + cur += size; + off_t end; if (usable_st_size (st) && cur <= st->st_size) end = st->st_size; else @@ -1197,7 +1206,8 @@ lines_rr (uintmax_t k, uintmax_t n, char *buf, size_t bufsize) quotef (files[i_file].of_name)); } - wrote = true; + if (! ignorable (errno)) + wrote = true; if (file_limit) { @@ -1558,8 +1568,7 @@ main (int argc, char **argv) char *buf = ptr_align (b, page_size); size_t initial_read = SIZE_MAX; - if ((split_type == type_chunk_bytes || split_type == type_chunk_lines) - && n_units != 1) + if (split_type == type_chunk_bytes || split_type == type_chunk_lines) { file_size = input_file_size (STDIN_FILENO, &in_stat_buf, buf, in_blk_size); |