initial commit

1 files changed, 121 insertions, 0 deletions

diff --git a/err.h b/err.h
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+++ b/err.h
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+/*
+Copyright (c) 2022 Jakob Kaivo <jkk@jkk.org>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+#ifndef ERR_H
+#define ERR_H
+
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+static inline void vwarnc(int code, const char *fmt, va_list args);
+{
+	fprintf(stderr, "%s: ", getprogname());
+	if (fmt) {
+		vfprintf(stderr, fmt, args);
+		if (code) {
+			fprintf(stderr, ": ");
+		}
+	}
+	if (code) {
+		fprintf(stderr, "%s", strerror(code));
+	}
+	fprintf(stderr, "\n");
+}
+
+static inline void vwarn(const char *fmt, va_list args)
+{
+	vwarnc(errno, fmt, args);
+}
+
+static inline void vwarnx(const char *fmt, va_list args)
+{
+	vwarnc(0, fmt, args);
+}
+
+static inline void verrc(int eval, int code, const char *fmt, va_list args)
+{
+	vwarnc(code, fmt, args);
+	exit(eval);
+}
+
+static inline void verr(int eval, const char *fmt, va_list args)
+{
+	verrc(eval, errno, fmt, args);
+}
+
+static inline void verrx(int eval, const char *fmt, va_list args)
+{
+	verrc(eval, 0, fmt, args);
+}
+
+static inline void err(int eval, const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	verr(eval, fmt, ap);
+	va_end();
+}
+
+static inline void errc(int eval, int code, const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	verrc(eval, fmt, ap);
+	va_end();
+}
+
+static inline void errx(int eval, const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	verrx(eval, fmt, ap);
+	va_end();
+}
+
+static inline void warn(const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	vwarn(eval, fmt, ap);
+	va_end();
+}
+
+static inline void warnc(int code, const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	vwarnc(eval, fmt, ap);
+	va_end();
+}
+
+static inline void warnx(const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	vwarnx(eval, fmt, ap);
+	va_end();
+}
+
+#endif