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#include "global.h"
#include "misc.h"
/*
* Help the user.
*
*/
char usage[]
= "Usage: %s [options]\n"
"\t-c\tspecify the config file. By default, FakeBO will search for its\n"
"\t\tconfig file in various places; see below the help\n"
"\t-d\tprint debugging information.\n"
"\t-i\tdebug BO packet numbers.\n"
"\t-b\tstart FakeBO as a daemon.\n"
"\t-v\tverbose mode.\n"
"\t-a\tprint info about program.\n"
"\t-h\tprint this help message.\n"
"\t-V\tprint version and exit.\n"
"\n";
/*
* the GNU licence
*/
char msg_about[]
= "This program is free software; you can redistribute it and/or modify\n"
"it under the terms of the GNU General Public License as published by\n"
"the Free Software Foundation; either version 2 of the License, or\n"
"(at your option) any later version.\n"
"\n"
"This program is distributed in the hope that it will be useful,\n"
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
"GNU General Public License for more details.\n"
"\n"
"You should have received a copy of the GNU General Public License\n"
"along with this program; if not, write to the Free Software\n"
"Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\n"
"\n";
volatile int stop = FALSE; /* for signal handling */
FILE *fptolog;
void removeunprintable(char *s, int n)
{
int i;
for (i = 0; i < strlen(s); i++) {
if (isprint((int) s[i]))
break;
if (isspace((int) s[i]))
break;
if (s[i] != 0)
break;
s[i] = '.';
}
}
/*
* log contents from fmt to log file
*
*/
char repeatbuf[MAXLOGRECSIZE]; /* buffer to compare */
int repeatcount = 0; /* Counter for 'message repeated x times' */
void logprintf(BOOL dotime, char *fmt,...)
{
va_list va;
char buf[MAXLOGRECSIZE], buf2[MAXLOGRECSIZE];
va_start(va, fmt);
vsprintf(buf, fmt, va);
va_end(va);
if (strcmp(buf, repeatbuf) == 0) {
repeatcount++;
return;
}
removeunprintable(buf, sizeof(buf));
if (repeatcount > 0) {
if (logtimeanddate > 0) {
whatistime(buf2);
fprintf(fptolog, "%s Last message repeated %d time(s)\n", buf2, repeatcount);
} else
fprintf(fptolog, "Last message repeated %d time(s)\n", repeatcount);
repeatcount = 0;
memset(repeatbuf, 0, sizeof(repeatbuf));
}
memcpy(repeatbuf, buf, sizeof(buf));
if (dotime && logtimeanddate > 0) {
whatistime(buf2);
fprintf(fptolog, "%s %s", buf2, buf);
} else
fprintf(fptolog, "%s", buf);
}
void syslogprintf(char *fmt,...)
{
va_list va;
char buf[MAXLOGRECSIZE];
if (logtosyslog != 0) {
va_start(va, fmt);
vsprintf(buf, fmt, va);
va_end(va);
#ifdef HAVE_OPENLOG
openlog("FakeBO", LOG_CONS, LOG_USER);
syslog(LOG_WARNING, buf);
closelog();
#else
#warning "Can't find usable syslog, disabled!"
#endif
}
}
/*
* Returns the current local date and time in timenow.
* Here you can modify the output format
* (default is yyyy-mm-dd hh:mm:ss)
*
*/
void whatistime(char *timenow)
{
struct tm *curtime;
time_t cartime;
time(&cartime);
curtime = localtime(&cartime);
switch (logtimeanddate) {
case 1:
sprintf(timenow, "%02d-%02d-%04d %02d:%02d:%02d", curtime->tm_mon + 1
,curtime->tm_mday, curtime->tm_year + 1900, curtime->tm_hour
,curtime->tm_min, curtime->tm_sec);
break;
case 2:
sprintf(timenow, "%02d.%02d.%04d %02d:%02d:%02d", curtime->tm_mday
,curtime->tm_mon + 1, curtime->tm_year + 1900, curtime->tm_hour
,curtime->tm_min, curtime->tm_sec);
break;
case 3:
sprintf(timenow, "%04d-%02d-%02d %02d:%02d:%02d", curtime->tm_year + 1900
,curtime->tm_mon + 1, curtime->tm_mday, curtime->tm_hour
,curtime->tm_min, curtime->tm_sec);
break;
default:
sprintf(timenow, "Config error (`logtimeanddate' != [0-3])!");
break;
}
}
/*
* If we are running as root (EUID = 0),
* drop root privileges and become USER.
*/
void dropprivileges(const char *user)
{
#ifdef HAVE_PWD_H
struct passwd *entry;
static int done = 0;
/* Nothing to do if we are not root */
if (done || geteuid() != 0) {
done = 1;
return;
}
/* Become user */
entry = getpwnam(user);
if (entry == NULL) {
fprintf(stderr, "Warning: user %s not found, "
"running as root!!\n", user);
return;
}
if (setgid(entry->pw_gid) == -1)
perror("setgid()");
if (setuid(entry->pw_uid) == -1)
perror("setuid()");
done = 1;
#else
#warning Ignoring drop priviledges!
#endif
}
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