import cinit from unix.schottelius.org

Signed-off-by: Nico Schottelius <nico@ikn.schottelius.org>

software/cinit/browse_source/cinit-0.0.6/serv/sigio_linux.c

@@ -0,0 +1,99 @@
+/* 
+ * 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");
+}