File: [local] / src / usr.bin / rsync / log.c (download)
Revision 1.1, Sun Feb 10 23:18:28 2019 UTC (5 years, 3 months ago) by benno
Branch: MAIN
Import Kristaps' openrsync into the tree.
OK deraadt@
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/* $Id: log.c,v 1.1 2019/02/10 23:18:28 benno Exp $ */
/*
* Copyright (c) 2019 Kristaps Dzonsons <kristaps@bsd.lv>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <errno.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "extern.h"
/*
* Log a message at level "level", starting at zero, which corresponds
* to the current verbosity level opts->verbose (whose verbosity starts
* at one).
*/
void
rsync_log(struct sess *sess, const char *fname,
size_t line, int level, const char *fmt, ...)
{
char *buf = NULL;
va_list ap;
if (sess->opts->verbose < level + 1)
return;
if (NULL != fmt) {
va_start(ap, fmt);
if (vasprintf(&buf, fmt, ap) < 0) {
va_end(ap);
return;
}
va_end(ap);
}
if (level <= 0 && NULL != buf)
fprintf(stderr, "%s\n", buf);
else if (level > 0)
fprintf(stderr, "%s:%zu%s%s\n", fname, line,
NULL != buf ? ": " : "",
NULL != buf ? buf : "");
free(buf);
}
/*
* This reports an error---not a warning.
* However, it is not like errx(3) in that it does not exit.
*/
void
rsync_errx(struct sess *sess, const char *fname,
size_t line, const char *fmt, ...)
{
char *buf = NULL;
va_list ap;
if (NULL != fmt) {
va_start(ap, fmt);
if (vasprintf(&buf, fmt, ap) < 0) {
va_end(ap);
return;
}
va_end(ap);
}
fprintf(stderr, "%s:%zu: error%s%s\n", fname, line,
NULL != buf ? ": " : "",
NULL != buf ? buf : "");
free(buf);
}
/*
* This reports an error---not a warning.
* However, it is not like err(3) in that it does not exit.
*/
void
rsync_err(struct sess *sess, const char *fname,
size_t line, const char *fmt, ...)
{
char *buf = NULL;
va_list ap;
int er = errno;
if (NULL != fmt) {
va_start(ap, fmt);
if (vasprintf(&buf, fmt, ap) < 0) {
va_end(ap);
return;
}
va_end(ap);
}
fprintf(stderr, "%s:%zu: error%s%s: %s\n", fname, line,
NULL != buf ? ": " : "",
NULL != buf ? buf : "", strerror(er));
free(buf);
}
/*
* Prints a non-terminal error message, that is, when reporting on the
* chain of functions from which the actual warning occurred.
*/
void
rsync_errx1(struct sess *sess, const char *fname,
size_t line, const char *fmt, ...)
{
char *buf = NULL;
va_list ap;
if (sess->opts->verbose < 1)
return;
if (NULL != fmt) {
va_start(ap, fmt);
if (vasprintf(&buf, fmt, ap) < 0) {
va_end(ap);
return;
}
va_end(ap);
}
fprintf(stderr, "%s:%zu: error%s%s\n", fname, line,
NULL != buf ? ": " : "",
NULL != buf ? buf : "");
free(buf);
}
/*
* Prints a warning message.
*/
void
rsync_warnx(struct sess *sess, const char *fname,
size_t line, const char *fmt, ...)
{
char *buf = NULL;
va_list ap;
if (NULL != fmt) {
va_start(ap, fmt);
if (vasprintf(&buf, fmt, ap) < 0) {
va_end(ap);
return;
}
va_end(ap);
}
fprintf(stderr, "%s:%zu: warning%s%s\n", fname, line,
NULL != buf ? ": " : "",
NULL != buf ? buf : "");
free(buf);
}
/*
* Prints a warning with an errno.
* It uses a level detector for when to inhibit printing.
*/
void
rsync_warn(struct sess *sess, int level,
const char *fname, size_t line, const char *fmt, ...)
{
char *buf = NULL;
va_list ap;
int er = errno;
if (sess->opts->verbose < level)
return;
if (NULL != fmt) {
va_start(ap, fmt);
if (vasprintf(&buf, fmt, ap) < 0) {
va_end(ap);
return;
}
va_end(ap);
}
fprintf(stderr, "%s:%zu: warning%s%s: %s\n", fname, line,
NULL != buf ? ": " : "",
NULL != buf ? buf : "", strerror(er));
free(buf);
}