50e7c682bb
Add a mechanism where we can set a logging subsystem that libiscsi can use. Create an example 'log to stderr' that utilities can use for convenience.
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
/*
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Copyright (C) 2012 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#if defined(WIN32)
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#else
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#include <unistd.h>
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#endif
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#include <stdio.h>
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#include <stdarg.h>
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#include <arpa/inet.h>
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#include "iscsi.h"
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#include "iscsi-private.h"
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#include "scsi-lowlevel.h"
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void
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iscsi_log_to_stderr(int level, const char *message)
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{
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fprintf(stderr, "libiscsi:%d %s\n", level, message);
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}
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void
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iscsi_set_log_fn(struct iscsi_context *iscsi, iscsi_log_fn fn)
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{
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iscsi->log_fn = fn;
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}
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void
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iscsi_log_message(struct iscsi_context *iscsi, int level, const char *format, ...)
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{
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va_list ap;
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static char message[1024];
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int ret;
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if (iscsi->log_fn == NULL) {
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return;
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}
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va_start(ap, format);
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ret = vsnprintf(message, 1024, format, ap);
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va_end(ap);
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if (ret < 0) {
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return;
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}
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iscsi->log_fn(level, message);
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}
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