xbps/lib/log.c

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/*-
* Copyright (c) 2011-2015 Juan Romero Pardines.
* Copyright (c) 2014 Enno Boland.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <errno.h>
#include <stdarg.h>
#include "xbps_api_impl.h"
#ifdef __clang__
#pragma clang diagnostic ignored "-Wformat-nonliteral"
#endif
/**
* @file lib/log.c
* @brief Logging functions
* @defgroup log Logging functions
*
* Use these functions to log errors, warnings and debug messages.
*/
static void
common_printf(FILE *f, const char *msg, const char *fmt, va_list ap)
{
if (msg != NULL)
fprintf(f, "%s", msg);
vfprintf(f, fmt, ap);
}
void
xbps_dbg_printf_append(struct xbps_handle *xhp, const char *fmt, ...)
{
va_list ap;
assert(xhp);
if ((xhp->flags & XBPS_FLAG_DEBUG) == 0)
return;
va_start(ap, fmt);
common_printf(stderr, NULL, fmt, ap);
va_end(ap);
}
void
xbps_dbg_printf(struct xbps_handle *xhp, const char *fmt, ...)
{
va_list ap;
assert(xhp);
if ((xhp->flags & XBPS_FLAG_DEBUG) == 0)
return;
va_start(ap, fmt);
common_printf(stderr, "[DEBUG] ", fmt, ap);
va_end(ap);
}
void
xbps_error_printf(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
common_printf(stderr, "ERROR: ", fmt, ap);
va_end(ap);
}
void
xbps_warn_printf(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
common_printf(stderr, "WARNING: ", fmt, ap);
va_end(ap);
}