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/*
* NVRAM WakeUp
* Copyright (C) 2001-2004, Sergei Haller.
*
* $Id: tools.c 912 2009-05-17 17:19:06Z tiber $
*
* 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.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#define CVSREV_tools_c \
"$Id: tools.c 912 2009-05-17 17:19:06Z tiber $"
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <syslog.h>
#include <errno.h>
#include <string.h>
#include <ctype.h>
#include <assert.h>
#include "nvram-wakeup.h"
static char *progname = NULL;
static int _to_syslog = OFF;
static int _print_debug_msgs = OFF;
const char * get_progname(void){
return progname;
}
void set_progname(const char * str){
char * prg = NULL;
prg = strrchr(str, '/');
prg = (prg ? (prg + 1) : (char *)str);
progname = strdup(prg);
}
void enable_syslog(void){ _to_syslog = ON; }
void disable_syslog(void){ _to_syslog = OFF; }
void enable_debug (void){ _print_debug_msgs = ON; }
void disable_debug (void){ _print_debug_msgs = OFF; }
void nvprintf(int lvl, char *fmt, ...) {
int n, size = 100; /* Guess we need no more than 100 bytes. */
char *msg;
FILE *out;
va_list ap;
switch (lvl) {
case LOG_EMERG: /* system is unusable */
out = stderr;
break;
case LOG_ALERT: /* action must be taken immediately */
out = stderr;
break;
case LOG_CRIT: /* critical conditions */
out = stderr;
break;
case LOG_ERR: /* error conditions */
out = stderr;
break;
case LOG_WARNING: /* warning conditions */
out = stderr;
break;
case LOG_NOTICE: /* normal, but significant, condition */
out = stdout;
break;
case LOG_INFO: /* informational message */
out = stdout;
break;
case LOG_DEBUG: /* debug-level message */
default: /* unknown log level */
lvl = LOG_DEBUG;
out = stderr;
if (! _print_debug_msgs)
return; /* don't print debug messages */
break;
}
if (! _to_syslog) { /* to stderr/stdout */
va_start(ap, fmt);
if (lvl <= LOG_WARNING || lvl == LOG_DEBUG)
/* begin the line with the program name
* in DEBUG and in WARNING/ERR/CRIT/ALERT/EMERG mode
*/
fprintf(out, "%s: ", progname);
vfprintf(out, fmt, ap);
va_end(ap);
return;
}
else { /* via syslog */
if ((msg = malloc (size)) == NULL) {
/* output to stderr/stdout anyway. */
syslog(LOG_ERR, "Couldn't allocate enough memory (%d Bytes) for syslog message %s.\n", size, strerror(errno));
va_start(ap, fmt);
fprintf(out, "%s: ", progname);
vfprintf(out, fmt, ap);
va_end(ap);
return;
}
while (1) {
/* Try to print in the allocated space. */
va_start(ap, fmt);
n = vsnprintf(msg, size, fmt, ap);
va_end(ap);
/* If that worked, log the string and free the allocated space. */
if (n > -1 && n < size) {
syslog(lvl, msg);
free(msg);
return;
}
/* Else try again with more space. */
if (n > -1) /* glibc 2.1 */
size = n+1; /* precisely what is needed */
else /* glibc 2.0 */
size *= 2; /* twice the old size */
if ((msg = realloc (msg, size)) == NULL) {
/* output to stderr/stdout anyway. */
syslog(LOG_ERR, "Couldn't allocate enough memory (%d Bytes) for syslog message %s.\n", size, strerror(errno));
va_start(ap, fmt);
fprintf(out, "%s: ", progname);
vfprintf(out, fmt, ap);
va_end(ap);
free(msg);
return;
}
}
}
}
char * strip(char * s) {
char *res;
if (s==NULL) return s;
/* strip whitespace */
res = strdup(s);
while(isspace(*res))
/* memmove(res, res+1, strlen(res)); */
res++;
while(isspace(res[strlen(res)-1]))
res[strlen(res)-1]=0;
return res;
}
void xxd(unsigned char * bytes, int size, int loglevel) {
int i,pos;
char out_line[50];
for (i=0;i<=((size-1) / 16);i++) {
sprintf(out_line, "%06X0: %02X%02X %02X%02X %02X%02X %02X%02X %02X%02X %02X%02X %02X%02X %02X%02X\n", i,
bytes[16*i+ 0], bytes[16*i+ 1], bytes[16*i+ 2], bytes[16*i+ 3],
bytes[16*i+ 4], bytes[16*i+ 5], bytes[16*i+ 6], bytes[16*i+ 7],
bytes[16*i+ 8], bytes[16*i+ 9], bytes[16*i+10], bytes[16*i+11],
bytes[16*i+12], bytes[16*i+13], bytes[16*i+14], bytes[16*i+15] );
if (size < (i+1)*16 ) {
pos = ((size&0xF)>>1)*5 + (size&1)*3 + 8;
assert(pos+1 < 50);
out_line[pos]='\n';
out_line[pos+1]=0;
}
nvprintf(loglevel, out_line);
}
}
void cat(unsigned char * bytes, int size) {
int i;
for (i=0;i<size;i++)
putchar(bytes[i]);
}
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