www.nico.schottelius.org/software/cinit/browse_source/cinit-0.0.6/serv/sigio_linux.c
Nico Schottelius 423ba10303 import cinit from unix.schottelius.org
Signed-off-by: Nico Schottelius <nico@ikn.schottelius.org>
2009-09-16 12:53:45 +02:00

99 lines
2.2 KiB
C

/*
* cinit
* (c) 2005 Nico Schottelius (nico-linux at schottelius.org)
* handle client requests
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include "cinit.h"
/***********************************************************************
* sigio: client handling
*/
/* we are called, if one or _more_ connections are waiting */
void sigio(int signal)
{
int tmp, nsock;
char buf[PATH_MAX+1], status;
struct listitem *list_tmp;
pid_t pid;
D_PRINTF("sigio() startet");
do {
/* create new socket */
nsock = accept(sock,(struct sockaddr *) NULL, (socklen_t *) NULL);
if( nsock == -1) {
if (errno != EAGAIN) { /* report, but don't panic */
perror("accept");
}
return;
}
if( read(nsock,&buf[0],1) == -1) {
perror("read-command");
close(nsock);
continue;
}
switch(buf[0]) {
/********************** START SERVICE *******************/
case CMD_START_SVC:
tmp = do_start_svc(nsock,buf,ACT_SERV);
if(!tmp) break;
buf[tmp] = 0;
list_tmp = list_search(buf);
if(list_tmp != NULL) { /* service already exists */
buf[0] = 0;
do_result(nsock,&buf[0]);
break;
}
tmp = list_insert(buf,ST_TMP); /* add service */
if(!tmp) { /* failed */
LOG("Adding service failed!");
buf[0] = 0;
do_result(nsock,&buf[0]);
}
break;
/********************** CHANGE SERVICE STATUS *******************/
case CMD_CHG_STATUS:
tmp = do_change_status(buf,&status,&pid,nsock,ACT_SERV);
if(!tmp) break;
buf[tmp] = 0; /* terminate buf */
if(!list_modify(buf,status,pid)) {
D_PRINTF("MOD.ERR");
buf[0] = 0;
} else {
buf[0] = 1;
}
do_result(nsock,buf);
break;
default:
LOG("Unknown command!");
break;
}
close(nsock);
} while ( 1 );
D_PRINTF("ENDE:SIGIO");
}