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moved loglite.c from openac to scepclient

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This commit is contained in:
Andreas Steffen
2007-09-18 15:59:56 +00:00
parent 740153e6f7
commit 3b4b26cdf3
3 changed files with 4 additions and 7 deletions
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src/openac/loglite.c
-295
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@@ -1,295 +0,0 @@
/* error logging functions
* Copyright (C) 1997 Angelos D. Keromytis.
* Copyright (C) 1998-2001 D. Hugh Redelmeier.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* RCSID $Id: loglite.c,v 1.2 2005/07/11 18:38:16 as Exp $
*/
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <stdarg.h>
#include <syslog.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <signal.h> /* used only if MSG_NOSIGNAL not defined */
#include <libgen.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <freeswan.h>
#include <constants.h>
#include <defs.h>
#include <log.h>
#include <whack.h>
bool
log_to_stderr = FALSE, /* should log go to stderr? */
log_to_syslog = TRUE; /* should log go to syslog? */
void
init_log(const char *program)
{
if (log_to_stderr)
setbuf(stderr, NULL);
if (log_to_syslog)
openlog(program, LOG_CONS | LOG_NDELAY | LOG_PID, LOG_AUTHPRIV);
}
void
close_log(void)
{
if (log_to_syslog)
closelog();
}
void
plog(const char *message, ...)
{
va_list args;
char m[LOG_WIDTH]; /* longer messages will be truncated */
va_start(args, message);
vsnprintf(m, sizeof(m), message, args);
va_end(args);
if (log_to_stderr)
fprintf(stderr, "%s\n", m);
if (log_to_syslog)
syslog(LOG_WARNING, "%s", m);
}
void
loglog(int mess_no, const char *message, ...)
{
va_list args;
char m[LOG_WIDTH]; /* longer messages will be truncated */
va_start(args, message);
vsnprintf(m, sizeof(m), message, args);
va_end(args);
if (log_to_stderr)
fprintf(stderr, "%s\n", m);
if (log_to_syslog)
syslog(LOG_WARNING, "%s", m);
}
void
log_errno_routine(int e, const char *message, ...)
{
va_list args;
char m[LOG_WIDTH]; /* longer messages will be truncated */
va_start(args, message);
vsnprintf(m, sizeof(m), message, args);
va_end(args);
if (log_to_stderr)
fprintf(stderr, "ERROR: %s. Errno %d: %s\n", m, e, strerror(e));
if (log_to_syslog)
syslog(LOG_ERR, "ERROR: %s. Errno %d: %s", m, e, strerror(e));
}
void
exit_log(const char *message, ...)
{
va_list args;
char m[LOG_WIDTH]; /* longer messages will be truncated */
va_start(args, message);
vsnprintf(m, sizeof(m), message, args);
va_end(args);
if (log_to_stderr)
fprintf(stderr, "FATAL ERROR: %s\n", m);
if (log_to_syslog)
syslog(LOG_ERR, "FATAL ERROR: %s", m);
exit(1);
}
void
exit_log_errno_routine(int e, const char *message, ...)
{
va_list args;
char m[LOG_WIDTH]; /* longer messages will be truncated */
va_start(args, message);
vsnprintf(m, sizeof(m), message, args);
va_end(args);
if (log_to_stderr)
fprintf(stderr, "FATAL ERROR: %s. Errno %d: %s\n", m, e, strerror(e));
if (log_to_syslog)
syslog(LOG_ERR, "FATAL ERROR: %s. Errno %d: %s", m, e, strerror(e));
exit(1);
}
void
whack_log(int mess_no, const char *message, ...)
{
va_list args;
char m[LOG_WIDTH]; /* longer messages will be truncated */
va_start(args, message);
vsnprintf(m, sizeof(m), message, args);
va_end(args);
fprintf(stderr, "%s\n", m);
}
/* Build up a diagnostic in a static buffer.
* Although this would be a generally useful function, it is very
* hard to come up with a discipline that prevents different uses
* from interfering. It is intended that by limiting it to building
* diagnostics, we will avoid this problem.
* Juggling is performed to allow an argument to be a previous
* result: the new string may safely depend on the old one. This
* restriction is not checked in any way: violators will produce
* confusing results (without crashing!).
*/
char diag_space[sizeof(diag_space)];
err_t
builddiag(const char *fmt, ...)
{
static char diag_space[LOG_WIDTH]; /* longer messages will be truncated */
char t[sizeof(diag_space)]; /* build result here first */
va_list args;
va_start(args, fmt);
t[0] = '\0'; /* in case nothing terminates string */
vsnprintf(t, sizeof(t), fmt, args);
va_end(args);
strcpy(diag_space, t);
return diag_space;
}
/* Debugging message support */
#ifdef DEBUG
void
switch_fail(int n, const char *file_str, unsigned long line_no)
{
char buf[30];
snprintf(buf, sizeof(buf), "case %d unexpected", n);
passert_fail(buf, file_str, line_no);
}
void
passert_fail(const char *pred_str, const char *file_str, unsigned long line_no)
{
/* we will get a possibly unplanned prefix. Hope it works */
loglog(RC_LOG_SERIOUS, "ASSERTION FAILED at %s:%lu: %s", file_str, line_no, pred_str);
abort(); /* exiting correctly doesn't always work */
}
lset_t
base_debugging = DBG_NONE, /* default to reporting nothing */
cur_debugging = DBG_NONE;
void
pexpect_log(const char *pred_str, const char *file_str, unsigned long line_no)
{
/* we will get a possibly unplanned prefix. Hope it works */
loglog(RC_LOG_SERIOUS, "EXPECTATION FAILED at %s:%lu: %s", file_str, line_no, pred_str);
}
/* log a debugging message (prefixed by "| ") */
void
DBG_log(const char *message, ...)
{
va_list args;
char m[LOG_WIDTH]; /* longer messages will be truncated */
va_start(args, message);
vsnprintf(m, sizeof(m), message, args);
va_end(args);
if (log_to_stderr)
fprintf(stderr, "| %s\n", m);
if (log_to_syslog)
syslog(LOG_DEBUG, "| %s", m);
}
/* dump raw bytes in hex to stderr (for lack of any better destination) */
void
DBG_dump(const char *label, const void *p, size_t len)
{
# define DUMP_LABEL_WIDTH 20 /* arbitrary modest boundary */
# define DUMP_WIDTH (4 * (1 + 4 * 3) + 1)
char buf[DUMP_LABEL_WIDTH + DUMP_WIDTH];
char *bp;
const unsigned char *cp = p;
bp = buf;
if (label != NULL && label[0] != '\0')
{
/* Handle the label. Care must be taken to avoid buffer overrun. */
size_t llen = strlen(label);
if (llen + 1 > sizeof(buf))
{
DBG_log("%s", label);
}
else
{
strcpy(buf, label);
if (buf[llen-1] == '\n')
{
buf[llen-1] = '\0'; /* get rid of newline */
DBG_log("%s", buf);
}
else if (llen < DUMP_LABEL_WIDTH)
{
bp = buf + llen;
}
else
{
DBG_log("%s", buf);
}
}
}
do {
int i, j;
for (i = 0; len!=0 && i!=4; i++)
{
*bp++ = ' ';
for (j = 0; len!=0 && j!=4; len--, j++)
{
static const char hexdig[] = "0123456789abcdef";
*bp++ = ' ';
*bp++ = hexdig[(*cp >> 4) & 0xF];
*bp++ = hexdig[*cp & 0xF];
cp++;
}
}
*bp = '\0';
DBG_log("%s", buf);
bp = buf;
} while (len != 0);
# undef DUMP_LABEL_WIDTH
# undef DUMP_WIDTH
}
#endif /* DEBUG */