143 lines
2.8 KiB
C
143 lines
2.8 KiB
C
/*
|
|
* (c) 2005 Nico Schottelius (nico-linux at schottelius.org)
|
|
* cinit.c
|
|
* part of cLinux/cinit
|
|
*/
|
|
|
|
/* *stat() */
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
|
|
/* open */
|
|
#include <fcntl.h>
|
|
|
|
/* siggnal */
|
|
#include <signal.h>
|
|
|
|
/* PATH_MAX */
|
|
#include <limits.h>
|
|
|
|
/* str* */
|
|
#include <string.h>
|
|
|
|
/* sockets */
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/un.h>
|
|
|
|
/* mount */
|
|
#include <sys/mount.h>
|
|
|
|
#include <stdio.h>
|
|
#include <fcntl.h>
|
|
|
|
#include <time.h> /* nanosleep */
|
|
|
|
#include "cinit.h"
|
|
|
|
/* global variable */
|
|
struct listitem *list;
|
|
int sock, logfd;
|
|
|
|
/***********************************************************************
|
|
* the main procedure
|
|
*/
|
|
|
|
#ifdef TIME_ME
|
|
time_t start;
|
|
#endif
|
|
|
|
int main()
|
|
{
|
|
struct stat sbuf;
|
|
pid_t pid;
|
|
struct sockaddr_un addr;
|
|
struct timespec ts;
|
|
|
|
#ifdef TIME_ME
|
|
start = time(NULL);
|
|
#endif
|
|
|
|
set_signals(ACT_SERV); /* set signal handlers */
|
|
logfd = 1; /* write to stdout */
|
|
list = NULL; /* list of services is empty currently */
|
|
|
|
/* stat, checkdir */
|
|
if( stat(CINIT_INIT,&sbuf) ) {
|
|
perror("PANIC ACTION");
|
|
panic();
|
|
}
|
|
if( ! S_ISDIR(sbuf.st_mode) ) {
|
|
LOG("PANIC ACTION: init is not a dir");
|
|
panic();
|
|
}
|
|
if( chdir(CINIT_INIT) == -1) {
|
|
perror("PANIC ACTION");
|
|
panic();
|
|
}
|
|
|
|
/* count of started processes */
|
|
// svc_list.process = 0;
|
|
|
|
/******************** TMPDIR **********************/
|
|
if(mount(C_TMPMOUNT,CINIT_TMNT,C_TMPFS,0,NULL) == -1) {
|
|
perror("mount");
|
|
panic();
|
|
}
|
|
|
|
/******************** begin socket **********************/
|
|
sock = socket(AF_UNIX,SOCK_STREAM,0); /* create socket */
|
|
if( sock == -1 ) {
|
|
perror("socket");
|
|
panic();
|
|
}
|
|
|
|
/* tell the socket, _we_ want to get SIGIO! */
|
|
pid = getpid();
|
|
if(fcntl(sock,F_SETOWN,pid) == -1) {
|
|
perror("fcntl");
|
|
panic();
|
|
}
|
|
|
|
/* O_SYNC: SIGIO will be called, O_NONBLOCK: don't block cinit */
|
|
if ( fcntl(sock,F_SETFL,O_ASYNC|O_NONBLOCK) == -1) {
|
|
perror("fcntl");
|
|
panic();
|
|
}
|
|
|
|
memset(&addr,0,sizeof(addr)); /* clear addr */
|
|
strcpy(addr.sun_path, CINIT_SOCK);
|
|
addr.sun_family = AF_UNIX;
|
|
|
|
|
|
if(bind(sock,(struct sockaddr *)&addr,sizeof(addr)) == -1) {
|
|
perror("bind");
|
|
panic();
|
|
}
|
|
|
|
/* start listening */
|
|
if(listen(sock,SOCK_QUEUE) == -1) {
|
|
perror("listen");
|
|
panic();
|
|
}
|
|
/******************** end socket **********************/
|
|
|
|
/* initial run, only if we are 'real' init' */
|
|
// if( pid == 1) {
|
|
run_init_svc();
|
|
// }
|
|
|
|
D_PRINTF("fertig gestartet");
|
|
|
|
/* the main loop: sleep until a signal comes in */
|
|
ts.tv_sec = -1;
|
|
if(ts.tv_sec < 0) {
|
|
D_PRINTF("is signed");
|
|
ts.tv_sec = 1 << ((sizeof(ts.tv_sec) * 8)-1);
|
|
ts.tv_sec = ts.tv_sec - 1;
|
|
}
|
|
|
|
while(1) {
|
|
nanosleep(&ts,NULL);
|
|
}
|
|
}
|