New function Proc_Close() to shutdown pipes to child processes

[ngircd-alex.git] / src / ngircd / proc.c

diff --git a/src/ngircd/proc.c b/src/ngircd/proc.c
index aace8053c00c2cca27f2a24ed0490f1271137f0e..2a5eda8304ea1c462612329118dbd698b00148c6 100644 (file)
--- a/src/ngircd/proc.c
+++ b/src/ngircd/proc.c
@@ -1,6 +1,6 @@
 /*
  * ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2010 Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2011 Alexander Barton (alex@barton.de) and Contributors.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -50,6 +50,7 @@ GLOBAL pid_t
 Proc_Fork(PROC_STAT *proc, int *pipefds, void (*cbfunc)(int, short), int timeout)
 {
        pid_t pid;
+       unsigned int seed;
 
        assert(proc != NULL);
        assert(pipefds != NULL);
@@ -61,6 +62,7 @@ Proc_Fork(PROC_STAT *proc, int *pipefds, void (*cbfunc)(int, short), int timeout
                return -1;
        }
 
+       seed = (unsigned int)rand();
        pid = fork();
        switch (pid) {
        case -1:
@@ -71,6 +73,7 @@ Proc_Fork(PROC_STAT *proc, int *pipefds, void (*cbfunc)(int, short), int timeout
                return -1;
        case 0:
                /* New child process: */
+               srand(seed ^ (unsigned int)time(NULL) ^ getpid());
                Signals_Exit();
                signal(SIGTERM, Proc_GenericSignalHandler);
                signal(SIGALRM, Proc_GenericSignalHandler);
@@ -145,4 +148,14 @@ Proc_Read(PROC_STAT *proc, void *buffer, size_t buflen)
        return (size_t)bytes_read;
 }
 
+/**
+ * Close pipe to a forked child process.
+ */
+GLOBAL void
+Proc_Close(PROC_STAT *proc)
+{
+       io_close(proc->pipe_fd);
+       Proc_InitStruct(proc);
+}
+
 /* -eof- */