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deb-mbse/mbtask/taskutil.c

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/*****************************************************************************
*
2001-12-23 14:15:58 +00:00
* $Id$
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* Purpose ...............: MBSE BBS Task Manager, utilities
*
*****************************************************************************
* Copyright (C) 1997-2001
*
* Michiel Broek FIDO: 2:280/2802
* Beekmansbos 10
* 1971 BV IJmuiden
* the Netherlands
*
* This file is part of MBSE BBS.
*
* This BBS 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, or (at your option) any
* later version.
*
* MBSE BBS 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 MBSE BBS; see the file COPYING. If not, write to the Free
* Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*****************************************************************************/
#include "libs.h"
#include "../lib/structs.h"
#include "signame.h"
#include "scanout.h"
#include "taskutil.h"
pid_t mypid; /* Original parent pid if child */
int oserr; /* Last OS error number */
extern struct sysconfig CFG;
extern struct _fidonethdr fidonethdr;
extern struct _fidonet fidonet;
extern struct taskrec TCFG;
static char *mon[] = {
(char *)"Jan",(char *)"Feb",(char *)"Mar",
(char *)"Apr",(char *)"May",(char *)"Jun",
(char *)"Jul",(char *)"Aug",(char *)"Sep",
(char *)"Oct",(char *)"Nov",(char *)"Dec"
};
/************************************************************************
*
* Loging procedures.
*/
char *date(void);
char *date(void)
{
struct tm ptm;
time_t now;
static char buf[20];
now = time(NULL);
ptm = *localtime(&now);
sprintf(buf,"%02d-%s-%04d %02d:%02d:%02d", ptm.tm_mday, mon[ptm.tm_mon], ptm.tm_year+1900,
ptm.tm_hour, ptm.tm_min, ptm.tm_sec);
return(buf);
}
/*
* general log for this server
*/
void tasklog(int grade, const char *format, ...)
{
va_list va_ptr;
char outstr[1024];
int oldmask;
FILE *logfile;
char *logname;
if (grade == '+' || grade == '-' || grade == '!' || grade == '?' || grade == ' ' || TCFG.debug) {
va_start(va_ptr, format);
vsprintf(outstr, format, va_ptr);
va_end(va_ptr);
logname = calloc(PATH_MAX, sizeof(char));
oldmask=umask(066);
sprintf(logname, "%s/log/mbtask.log", getenv("MBSE_ROOT"));
logfile = fopen(logname, "a");
umask(oldmask);
if (logfile == NULL) {
printf("Cannot open logfile \"%s\"\n", logname);
free(logname);
return;
}
fprintf(logfile, "%c %s mbtask[%d] ", grade, date(), getpid());
fprintf(logfile, *outstr == '$' ? outstr+1 : outstr);
if (*outstr == '$')
fprintf(logfile, ": %s\n", strerror(errno));
else
fprintf(logfile, "\n");
fflush(logfile);
if (fclose(logfile) != 0)
printf("Cannot close logfile \"%s\"\n", logname);
free(logname);
}
return;
}
/*
* user log process
*/
int ulog(char *fn, char *grade, char *prname, char *prpid, char *format)
{
int oldmask;
FILE *log;
oldmask = umask(066);
log = fopen(fn, "a");
umask(oldmask);
if (log == NULL) {
oserr = errno;
tasklog('!', "$Cannot open user logfile %s", fn);
return -1;
}
fprintf(log, "%s %s %s[%s] ", grade, date(), prname, prpid);
fwrite(format, strlen(format), 1, log);
fprintf(log, "\n");
fflush(log);
if (fclose(log) != 0) {
oserr = errno;
tasklog('!', "$Cannot close user logfile %s", fn);
return -1;
}
return 0;
}
char *xstrcpy(char *src)
{
char *tmp;
if (src == NULL)
return(NULL);
tmp = malloc(strlen(src)+1);
strcpy(tmp, src);
return tmp;
}
char *xstrcat(char *src, char *add)
{
char *tmp;
size_t size = 0;
if ((add == NULL) || (strlen(add) == 0))
return src;
if (src)
size = strlen(src);
size += strlen(add);
tmp = malloc(size + 1);
*tmp = '\0';
if (src) {
strcpy(tmp, src);
free(src);
}
strcat(tmp, add);
return tmp;
}
void CreateSema(char *sem)
{
char temp[PATH_MAX];
int fd;
sprintf(temp, "%s/sema/%s", getenv("MBSE_ROOT"), sem);
if (access(temp, F_OK) == 0)
return;
if ((fd = open(temp, O_CREAT|O_TRUNC,S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)) >= 0)
close(fd);
else
tasklog('?', "Can't create semafore %s", temp);
}
void TouchSema(char *sem)
{
char temp[PATH_MAX];
int fd;
sprintf(temp, "%s/sema/%s", getenv("MBSE_ROOT"), sem);
if ((fd = open(temp, O_CREAT|O_TRUNC,S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)) >= 0) {
close(fd);
} else
tasklog('?', "Can't touch semafore %s", temp);
}
void RemoveSema(char *sem)
{
char temp[PATH_MAX];
sprintf(temp, "%s/sema/%s", getenv("MBSE_ROOT"), sem);
if (access(temp, F_OK))
return;
if (unlink(temp) == -1)
tasklog('?', "Can't remove semafore %s", temp);
}
int IsSema(char *sem)
{
char temp[PATH_MAX];
sprintf(temp, "%s/sema/%s", getenv("MBSE_ROOT"), sem);
return (access(temp, F_OK) == 0);
}
/*
* Test if the given file exists. The second option is:
* R_OK - test for Read rights
* W_OK - test for Write rights
* X_OK - test for eXecute rights
* F_OK - test file presence only
*/
int file_exist(char *path, int mode)
{
if (access(path, mode) != 0)
return errno;
return 0;
}
/*
* Make directory tree, the name must end with a /
*/
int mkdirs(char *name)
{
char buf[PATH_MAX], *p, *q;
int rc, last = 0, oldmask;
memset(&buf, 0, sizeof(buf));
strncpy(buf, name, sizeof(buf)-1);
buf[sizeof(buf)-1] = '\0';
p = buf+1;
oldmask = umask(000);
while ((q = strchr(p, '/'))) {
*q = '\0';
rc = mkdir(buf, 0775);
last = errno;
*q = '/';
p = q+1;
}
umask(oldmask);
if ((last == 0) || (last == EEXIST)) {
return TRUE;
} else {
tasklog('?', "$mkdirs(%s)", name);
return FALSE;
}
}
/*
* Return size of file, or -1 if file doesn't exist
*/
long file_size(char *path)
{
static struct stat sb;
if (stat(path, &sb) == -1)
return -1;
return sb.st_size;
}
/*
* Return time of file, or -1 if file doen't exist, which is
* the same as 1 second before 1 jan 1970. You may test the
* result on -1 since time_t is actualy a long integer.
*/
time_t file_time(char *path)
{
static struct stat sb;
if (stat(path, &sb) == -1)
return -1;
return sb.st_mtime;
}
/*
* Return ASCII string for node, the bits in 'fl' set the
* output format.
*/
char *ascfnode(fidoaddr a, int fl)
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{
static char buf[128];
buf[0] = '\0';
if ((fl & 0x08) && (a.zone))
sprintf(buf+strlen(buf),"%u:",a.zone);
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if (fl & 0x04)
sprintf(buf+strlen(buf),"%u/",a.net);
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if (fl & 0x02)
sprintf(buf+strlen(buf),"%u",a.node);
if ((fl & 0x01) && (a.point))
sprintf(buf+strlen(buf),".%u",a.point);
if ((fl & 0x10) && (strlen(a.domain)))
sprintf(buf+strlen(buf),"@%s",a.domain);
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return buf;
}
char *Dos2Unix(char *dosname)
{
char buf[PATH_MAX];
static char buf2[PATH_MAX];
char *p, *q;
memset(&buf, 0, sizeof(buf));
memset(&buf2, 0, sizeof(buf2));
sprintf(buf, "%s", dosname);
p = buf;
if (strlen(CFG.dospath)) {
if (strncasecmp(p, CFG.dospath, strlen(CFG.dospath)) == 0) {
strcpy((char *)buf2, CFG.uxpath);
for (p+=strlen(CFG.dospath), q = buf2 + strlen(buf2); *p; p++, q++)
*q = ((*p) == '\\')?'/':tolower(*p);
*q = '\0';
p = buf2;
} else {
if (strncasecmp(p, CFG.uxpath, strlen(CFG.uxpath)) == 0) {
for (p+=strlen(CFG.uxpath), q = buf2 + strlen(buf2); *p; p++, q++)
*q = ((*p) == '\\')?'/':tolower(*p);
*q = '\0';
p = buf2;
}
}
}
return buf2;
}
static char *dow[] = {(char *)"su", (char *)"mo", (char *)"tu", (char *)"we",
(char *)"th", (char *)"fr", (char *)"sa"};
char *dayname(void)
{
time_t tt;
struct tm *ptm;
static char buf[3];
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tt = time(NULL);
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ptm = localtime(&tt);
sprintf(buf, "%s", dow[ptm->tm_wday]);
return buf;
}
void InitFidonet(void)
{
memset(&fidonet, 0, sizeof(fidonet));
}
int SearchFidonet(unsigned short zone)
{
FILE *fil;
char fidonet_fil[PATH_MAX];
int i;
sprintf(fidonet_fil, "%s/etc/fidonet.data", getenv("MBSE_ROOT"));
if ((fil = fopen(fidonet_fil, "r")) == NULL) {
return FALSE;
}
fread(&fidonethdr, sizeof(fidonethdr), 1, fil);
while (fread(&fidonet, fidonethdr.recsize, 1, fil) == 1) {
for (i = 0; i < 6; i++) {
if (zone == fidonet.zone[i]) {
fclose(fil);
return TRUE;
}
}
}
fclose(fil);
return FALSE;
}