From 082e680bd54e999f2bb4eb77141958938b1e9ee9 Mon Sep 17 00:00:00 2001 From: Manuel Novoa III Date: Wed, 11 Feb 2004 23:48:50 +0000 Subject: New stdio core. Should be more maintainable. Fixes a couple of bugs. Codepaths streamlined. Improved performance for nonthreaded apps when linked with a thread-enabled libc. Minor iconv bug and some locale/thread related startup issues fixed. These showed up in getting a gcj-compiled java helloworld app running. Removed some old extension functions... _stdio_fdout and _stdio_fsfopen. --- libc/stdio/perror.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 libc/stdio/perror.c (limited to 'libc/stdio/perror.c') diff --git a/libc/stdio/perror.c b/libc/stdio/perror.c new file mode 100644 index 000000000..83db7689f --- /dev/null +++ b/libc/stdio/perror.c @@ -0,0 +1,36 @@ +/* Copyright (C) 2004 Manuel Novoa III + * + * GNU Library General Public License (LGPL) version 2 or later. + * + * Dedicated to Toni. See uClibc/DEDICATION.mjn3 for details. + */ + +#include "_stdio.h" + +#ifdef __UCLIBC_MJN3_ONLY__ +#warning CONSIDER: Increase buffer size for error message (non-%m case)? +#endif + +void perror(register const char *s) +{ + /* If the program is calling perror, it's a safe bet that printf and + * friends are used as well. It is also possible that the calling + * program could buffer stderr, or reassign it. */ + + register const char *sep; + + sep = ": "; + if (!(s && *s)) { /* Caller did not supply a prefix message */ + s = (sep += 2); /* or passed an empty string. */ + } + +#ifdef __UCLIBC_HAS_PRINTF_M_SPEC__ + fprintf(stderr, "%s%s%m\n", s, sep); /* Use the gnu %m feature. */ +#else + { + char buf[64]; + fprintf(stderr, "%s%s%s\n", s, sep, + _glibc_strerror_r(errno, buf, sizeof(buf))); + } +#endif +} -- cgit v1.2.3