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| author | Assaf Gordon <assafgordon@gmail.com> | 2015-11-12 05:20:29 -0500 |
|---|---|---|
| committer | Assaf Gordon <assafgordon@gmail.com> | 2015-11-12 15:17:55 -0500 |
| commit | 4c5c6cad85ad67d96df261ec9abdab66590d9ceb (patch) | |
| tree | c73bb9ec4a84db74db3c511b19fb6353c5915406 /src/csplit.c | |
| parent | 0daa359de8edd09fe2df76cb26c7cef16da52ce3 (diff) | |
| download | coreutils-4c5c6cad85ad67d96df261ec9abdab66590d9ceb.tar.xz | |
csplit: check and report fwrite errors with errno
discussed in:
http://lists.gnu.org/archive/html/coreutils/2015-10/msg00091.html
* src/csplit.c: (save_line_to_file): check fwrite failures, report
and exit immediately instead of deferring to 'close_output'.
* tests/misc/csplit-io-err.sh: test fwrite failure using LD_PRELOAD.
* tests/local.mk: add new test.
Diffstat (limited to 'src/csplit.c')
| -rw-r--r-- | src/csplit.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/csplit.c b/src/csplit.c index c97acb862..a2034bf77 100644 --- a/src/csplit.c +++ b/src/csplit.c @@ -1051,7 +1051,13 @@ close_output_file (void) static void save_line_to_file (const struct cstring *line) { - fwrite (line->str, sizeof (char), line->len, output_stream); + size_t l = fwrite (line->str, sizeof (char), line->len, output_stream); + if (l != line->len) + { + error (0, errno, _("write error for %s"), quoteaf (output_filename)); + output_stream = NULL; + cleanup_fatal (); + } bytes_written += line->len; } |