138 lines
2.9 KiB
Text
138 lines
2.9 KiB
Text
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/*
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* (c) 2005 Nico Schottelius (nico-linux at schottelius.org)
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* cinit.c
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* part of cLinux/cinit
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*/
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/* *stat() */
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#include <sys/stat.h>
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#include <unistd.h>
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/* open */
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#include <fcntl.h>
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/* siggnal */
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#include <signal.h>
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/* PATH_MAX */
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#include <limits.h>
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/* printf() */
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//#include <stdio.h>
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/* str* */
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#include <string.h>
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#include "cinit.h"
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/* global variable */
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struct svcl svc_list;
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/***********************************************************************
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* the main procedure
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*/
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int main()
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{
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char buf[1223];
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struct stat sbuf;
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int i;
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struct sigaction sa;
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/* signal handlers to ignore */
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sa.sa_handler=SIG_IGN;
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// sigaction(SIGINT,&sa,NULL); /* ignore ctr+c */
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sigaction(SIGSTOP,&sa,NULL); /* ignore ctr+z, stop */
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sigaction(SIGPIPE,&sa,NULL); /* what todo when pipe/fifo closed */
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D_PRINTF(CINIT_INIT);
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/* begin to handle signals */
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/* stat, checkdir */
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if( stat(CINIT_INIT,&sbuf) ) {
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cerr("PANIC ACTION: init dir missing", RT_PAR_FAIL);
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} else if( ! S_ISDIR(sbuf.st_mode) ) {
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cerr("PANIC ACTION: init is not a dir", RT_PAR_FAIL);
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}
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if( chdir(CINIT_INIT) == -1)
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cerr("PANIC ACTION: chdir to /etc/cinit/init failed!",RT_PAR_FAIL);
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/* get shared memory */
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shmfd = shm_open(CINIT_SHM,O_RDWR|O_CREAT,0600);
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if(shmfd == -1) {
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perror("Shared memory");
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cerr("shared memory",RT_PAR_FAIL);
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}
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/* count of started processes */
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svc_list.process = 0;
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/* open communication fifos */
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f_in = open(CINIT_DIR SLASH F_IN, O_RDWR);
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f_out = open(CINIT_DIR SLASH F_OUT, O_RDWR);
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if(f_in == -1 || f_out == -1) cerr("opening fifo failed",RT_PAR_FAIL);
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/* initial run, only if we are 'real' init' */
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// if( getpid() == 1) {
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i = run_init_svc();
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printf("Initialer Start rueckgabe: %d\n", i);
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// }
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/* signal handlers to do special things with */
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// something else sa.sa_handler=SIG_IGN;
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sigaction(SIGUSR1,&sa,NULL); /* reboot on sigusr1 */
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sigaction(SIGUSR1,&sa,NULL); /* power-off on sigusr2 */
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sigaction(SIGTERM,&sa,NULL); /* halt on sigterm */
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/* important signal handlers: pipe, child */
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// sa.sa_handler=sig_pipe;
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// sa.sa_handler=sig_child;
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// sigaction(SIGCHLD,&sa,NULL); /* what todo when child exited */
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/* big TODO: */
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/* some while/for loop to hang forever, remember, we are init! */
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while(1) {
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i=0;
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/* read path */
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do {
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read(f_in,&buf,1);
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// buf1[i] = buf; i++;
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} while(buf != '\0');
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//
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// printf("Read path: %s\n",buf1);
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i=0;
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/* read status */
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do {
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read(f_in,&buf,1);
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// buf2[i] = buf; i++;
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} while(buf != '\0');
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// status = atoi(buf2);
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// printf("Read status: %d\n",status);
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i=0;
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/* read pid */
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do {
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read(f_in,&buf,1);
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// buf3[i] = buf; i++;
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} while(buf != '\0');
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// pid = atoi(buf3);
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}
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return 0;
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}
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