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9da0f529c0
Add a few convenient helpers to print error and warning messages. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Acked-by: Willy Tarreau <w@1wt.eu> Link: https://patch.msgid.link/20260318-nolibc-err-h-v4-2-08247a694bd9@weissschuh.net
88 lines
1.6 KiB
C
88 lines
1.6 KiB
C
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
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/*
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* formatted error message for NOLIBC
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* Copyright (C) 2026 Thomas Weißschuh <linux@weissschuh.net>
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*/
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/* make sure to include all global symbols */
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#include "nolibc.h"
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#ifndef _NOLIBC_ERR_H
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#define _NOLIBC_ERR_H
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#include "errno.h"
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#include "stdarg.h"
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#include "sys.h"
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static __attribute__((unused))
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void vwarn(const char *fmt, va_list args)
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{
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fprintf(stderr, "%s: ", program_invocation_short_name);
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vfprintf(stderr, fmt, args);
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fprintf(stderr, ": %m\n");
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}
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static __attribute__((unused))
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void vwarnx(const char *fmt, va_list args)
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{
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fprintf(stderr, "%s: ", program_invocation_short_name);
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vfprintf(stderr, fmt, args);
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fprintf(stderr, "\n");
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}
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static __attribute__((unused))
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void warn(const char *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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vwarn(fmt, args);
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va_end(args);
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}
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static __attribute__((unused))
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void warnx(const char *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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vwarnx(fmt, args);
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va_end(args);
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}
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static __attribute__((noreturn, unused))
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void verr(int eval, const char *fmt, va_list args)
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{
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vwarn(fmt, args);
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exit(eval);
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}
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static __attribute__((noreturn, unused))
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void verrx(int eval, const char *fmt, va_list args)
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{
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warnx(fmt, args);
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exit(eval);
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}
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static __attribute__((noreturn, unused))
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void err(int eval, const char *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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verr(eval, fmt, args);
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va_end(args);
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}
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static __attribute__((noreturn, unused))
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void errx(int eval, const char *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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verrx(eval, fmt, args);
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va_end(args);
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}
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#endif /* _NOLIBC_ERR_H */
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