From 93261cdf00778d5706a72bbbeb3a379bfaad948c Mon Sep 17 00:00:00 2001 From: Manuel Novoa III Date: Thu, 11 Mar 2004 10:10:53 +0000 Subject: Rewrite the err/warn functions as they were broken (__noreturn__ funcs were returning). Anyway, also make them threadsafe and smaller. The error.c file still needs work. --- libc/misc/error/Makefile | 2 +- libc/misc/error/err.c | 110 +++++++++++++++++++++++++++++++++++++++++++++++ libc/misc/error/error.c | 75 -------------------------------- 3 files changed, 111 insertions(+), 76 deletions(-) create mode 100644 libc/misc/error/err.c diff --git a/libc/misc/error/Makefile b/libc/misc/error/Makefile index 754010688..880fd58df 100644 --- a/libc/misc/error/Makefile +++ b/libc/misc/error/Makefile @@ -19,7 +19,7 @@ TOPDIR=../../../ include $(TOPDIR)Rules.mak -CSRC=error.c +CSRC=error.c err.c COBJS=$(patsubst %.c,%.o, $(CSRC)) OBJS=$(COBJS) diff --git a/libc/misc/error/err.c b/libc/misc/error/err.c new file mode 100644 index 000000000..5c53e545f --- /dev/null +++ b/libc/misc/error/err.c @@ -0,0 +1,110 @@ +/* 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. + */ + +#define _GNU_SOURCE +#include +#include +#include +#include +#include +#include +#ifdef __UCLIBC_HAS_THREADS__ +#include +#endif + +#ifdef __UCLIBC_MJN3_ONLY__ +#warning REMINDER: Need a centralized __progname prototype. +#warning REMINDER: Deal with wide oriented stderr case. +#endif +extern const char *__progname; + +static void vwarn_work(const char *format, va_list args, int showerr) +{ + /* 0123 45678 9 a b*/ + static const char fmt[] = "%s: \0: %s\n\0\n"; + const char *f; + char buf[64]; + __STDIO_AUTO_THREADLOCK_VAR; + + /* Do this first, in case something below changes errno. */ + f = fmt + 11; /* At 11. */ + if (showerr) { + f -= 4; /* At 7. */ + _susv3_strerror_r(errno, buf, sizeof(buf)); + } + + __STDIO_AUTO_THREADLOCK(stderr); + + fprintf(stderr, fmt, __progname); + if (format) { + vfprintf(stderr, format, args); + f -= 2; /* At 5 (showerr) or 9. */ + } + fprintf(stderr, f, buf); + + __STDIO_AUTO_THREADUNLOCK(stderr); +} + +extern void warn(const char *format, ...) +{ + va_list args; + + va_start(args, format); + vwarn(format, args); + va_end(args); +} + +extern void vwarn(const char *format, va_list args) +{ + vwarn_work(format, args, 1); +} + +extern void warnx(const char *format, ...) +{ + va_list args; + + va_start(args, format); + vwarnx(format, args); + va_end(args); +} + +extern void vwarnx(const char *format, va_list args) +{ + vwarn_work(format, args, 0); +} + +extern void err(int status, const char *format, ...) +{ + va_list args; + + va_start(args, format); + verr(status, format, args); + /* This should get optimized away. We'll leave it now for safety. */ + va_end(args); +} + +extern void verr(int status, const char *format, va_list args) +{ + vwarn(format, args); + exit(status); +} + +extern void errx(int status, const char *format, ...) +{ + va_list args; + + va_start(args, format); + verrx(status, format, args); + /* This should get optimized away. We'll leave it now for safety. */ + va_end(args); +} + +extern void verrx(int status, const char *format, va_list args) +{ + vwarnx(format, args); + exit(status); +} diff --git a/libc/misc/error/error.c b/libc/misc/error/error.c index 60a9d8af8..eddf24587 100644 --- a/libc/misc/error/error.c +++ b/libc/misc/error/error.c @@ -99,78 +99,3 @@ void __error_at_line (int status, int errnum, const char *file_name, #undef error_at_line weak_alias (__error, error) weak_alias (__error_at_line, error_at_line) - - - -#include "err.h" -#include "errno.h" - -/* NORETURN */ -void verr (int status, const char *message, va_list args) -{ - fflush (stdout); - - vfprintf (stderr, message, args); - if (errno) { - fprintf (stderr, ": %s", strerror (errno)); - } - putc ('\n', stderr); - if (status) - exit (status); -} - -/* NORETURN */ -void verrx (int status, const char *message, va_list args) -{ - fflush (stdout); - - vfprintf (stderr, message, args); - if (status) - exit (status); -} - -void vwarn (const char *message, va_list args) -{ - verr (0, message, args); -} - -void vwarnx (const char *message, va_list args) -{ - verrx (0, message, args); -} - -void err (int status, const char *message, ...) -{ - va_list args; - - va_start (args, message); - verr (status, message, args); - va_end (args); -} - -void errx (int status, const char *message, ...) -{ - va_list args; - - va_start (args, message); - verrx (status, message, args); - va_end (args); -} - -void warn (const char *message, ...) -{ - va_list args; - - va_start (args, message); - verr (0, message, args); - va_end (args); -} - -void warnx (const char *message, ...) -{ - va_list args; - - va_start (args, message); - verrx (0, message, args); - va_end (args); -} -- cgit v1.2.3