| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* vi: set sw=4 ts=4: */ |
| 2 | /* |
| 3 | * fclose_nonstdin implementation for busybox |
| 4 | * |
| 5 | * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org> |
| 6 | * |
| 7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
| 8 | */ |
| 9 | |
| 10 | /* A number of standard utilities can accept multiple command line args |
| 11 | * of '-' for stdin, according to SUSv3. So we encapsulate the check |
| 12 | * here to save a little space. |
| 13 | */ |
| 14 | |
| 15 | #include "libbb.h" |
| 16 | |
| 17 | int FAST_FUNC fclose_if_not_stdin(FILE *f) |
| 18 | { |
| 19 | /* Some more paranoid applets want ferror() check too */ |
| 20 | int r = ferror(f); /* NB: does NOT set errno! */ |
| 21 | if (r) errno = EIO; /* so we'll help it */ |
| 22 | if (f != stdin) |
| 23 | return (r | fclose(f)); /* fclose does set errno on error */ |
| 24 | return r; |
| 25 | } |