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fd-util: be more careful with fclose() errnos

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This might fix #15859, a bug which I find very puzzling.
This commit is contained in:
Lennart Poettering 2020-06-02 10:39:25 +02:00
parent 112bed84bf
commit 75f6d5d87e
1 changed files with 4 additions and 1 deletions
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5
src/basic/fd-util.c
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@ -103,13 +103,16 @@ int fclose_nointr(FILE *f) {
/* Same as close_nointr(), but for fclose() */
errno = 0; /* Extra safety: if the FILE* object is not encapsulating an fd, it might not set errno
* correctly. Let's hence initialize it to zero first, so that we aren't confused by any
* prior errno here */
if (fclose(f) == 0)
return 0;
if (errno == EINTR)
return 0;
return -errno;
return errno_or_else(EIO);
}
FILE* safe_fclose(FILE *f) {