131 lines
2.8 KiB
Plaintext
131 lines
2.8 KiB
Plaintext
/*
|
|
* (c) 2005 Nico Schottelius (nico-linux at schottelius.org)
|
|
* cinit.c
|
|
* part of cLinux
|
|
*/
|
|
|
|
/* *stat() */
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
|
|
/* open */
|
|
#include <fcntl.h>
|
|
|
|
/* siggnal */
|
|
#include <signal.h>
|
|
|
|
/* PATH_MAX */
|
|
#include <limits.h>
|
|
|
|
/* printf() */
|
|
//#include <stdio.h>
|
|
|
|
/* str* */
|
|
#include <string.h>
|
|
|
|
#include "cinit.h"
|
|
|
|
/* global variable */
|
|
struct svcl svc_list;
|
|
int f_in, f_out;
|
|
|
|
/***********************************************************************
|
|
* the main procedure
|
|
*/
|
|
|
|
int main()
|
|
{
|
|
char pathbuf[PATH_MAX];
|
|
char buf[1223];
|
|
struct stat sbuf;
|
|
int i;
|
|
|
|
struct sigaction sa;
|
|
|
|
/* signal handlers to ignore */
|
|
sa.sa_handler=SIG_IGN;
|
|
// sigaction(SIGINT,&sa,NULL); /* ignore ctr+c */
|
|
sigaction(SIGSTP,&sa,NULL); /* ignore ctr+z, stop */
|
|
|
|
D_PRINTF(CINIT_INIT);
|
|
|
|
/* count of started processes */
|
|
svc_list.process = 0;
|
|
|
|
/* begin to handle signals */
|
|
|
|
/* stat, checkdir */
|
|
if( stat(CINIT_INIT,&sbuf) ) {
|
|
cerr("PANIC ACTION: init dir missing", RT_PAR_FAIL);
|
|
} else if( ! S_ISDIR(sbuf.st_mode) ) {
|
|
cerr("PANIC ACTION: init is not a dir", RT_PAR_FAIL);
|
|
}
|
|
|
|
if( chdir(CINIT_INIT) == -1)
|
|
cerr("PANIC ACTION: chdir to /etc/cinit/init failed!",RT_PAR_FAIL);
|
|
|
|
/* open communication fifos */
|
|
f_in = open(CINIT_DIR SLASH F_IN, O_RDWR);
|
|
f_out = open(CINIT_DIR SLASH F_OUT, O_RDWR);
|
|
if(f_in == -1 || f_out == -1) cerr("opening fifo failed\n",RT_PAR_FAIL);
|
|
|
|
/* initial run, only if we are 'real' init' */
|
|
// if( getpid() == 1) {
|
|
i = run_init_svc();
|
|
printf("Initialer Start rueckgabe: %d\n", i);
|
|
// }
|
|
|
|
/* signal handlers to do special things with */
|
|
// something else sa.sa_handler=SIG_IGN;
|
|
sigaction(SIGUSR1,&sa,NULL); /* reboot on sigusr1 */
|
|
sigaction(SIGUSR1,&sa,NULL); /* power-off on sigusr2 */
|
|
sigaction(SIGTERM,&sa,NULL); /* halt on sigterm */
|
|
|
|
/* important signal handlers: pipe, child */
|
|
// sa.sa_handler=sig_pipe;
|
|
// sigaction(SIGPIPE,&sa,NULL); /* what todo when pipe/fifo closed */
|
|
|
|
// sa.sa_handler=sig_child;
|
|
// sigaction(SIGCHLD,&sa,NULL); /* what todo when child exited */
|
|
|
|
|
|
/* big TODO: */
|
|
|
|
/* some while/for loop to hang forever, remember, we are init! */
|
|
while(1) {
|
|
i=0;
|
|
/* read path */
|
|
do {
|
|
read(f_in,&buf,1);
|
|
// buf1[i] = buf; i++;
|
|
} while(buf != '\0');
|
|
//
|
|
// printf("Read path: %s\n",buf1);
|
|
|
|
i=0;
|
|
/* read status */
|
|
do {
|
|
read(f_in,&buf,1);
|
|
// buf2[i] = buf; i++;
|
|
} while(buf != '\0');
|
|
|
|
// status = atoi(buf2);
|
|
// printf("Read status: %d\n",status);
|
|
|
|
i=0;
|
|
/* read pid */
|
|
do {
|
|
read(f_in,&buf,1);
|
|
// buf3[i] = buf; i++;
|
|
} while(buf != '\0');
|
|
|
|
// pid = atoi(buf3);
|
|
|
|
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|