Use a unique exit_code value to indicate fork failure

[builder.git] / source / misc.cpp

diff --git a/source/misc.cpp b/source/misc.cpp
index 2409e05a650a7fb5c67885d799f9359ad550037b..c85f840815ae739aaf54ed24960128691d48e9a8 100644 (file)
--- a/source/misc.cpp
+++ b/source/misc.cpp
@@ -1,14 +1,8 @@
-/* $Id$
-
-This file is part of builder
-Copyright © 2006-2009  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #include <sys/wait.h>
 #include <fcntl.h>
 #include <cstdlib>
 #include <cstring>
+#include <unistd.h>
 #include <msp/io/print.h>
 #include "misc.h"
 
@@ -22,20 +16,20 @@ string run_command(const StringList &argv, int *status)
 
        string result;
 
-       pid_t pid=fork();
+       pid_t pid = fork();
        if(pid==0)
        {
                char *argv_[argv.size()+1];
 
-               unsigned j=0;
+               unsigned j = 0;
                for(StringList::const_iterator i=argv.begin(); i!=argv.end(); ++i)
-                       argv_[j++]=strdup(i->c_str());
-               argv_[j]=0;
+                       argv_[j++] = strdup(i->c_str());
+               argv_[j] = 0;
 
                close(pfd[0]);
                dup2(pfd[1], 1);
                close(pfd[1]);
-               int devnull=open("/dev/null", O_WRONLY);
+               int devnull = open("/dev/null", O_WRONLY);
                dup2(devnull, 2);
                close(devnull);
 
@@ -50,7 +44,7 @@ string run_command(const StringList &argv, int *status)
                while(1)
                {
                        char buf[1024];
-                       int len=read(pfd[0], buf, sizeof(buf));
+                       int len = read(pfd[0], buf, sizeof(buf));
                        if(len<=0)
                        {
                                int s;
@@ -59,9 +53,9 @@ string run_command(const StringList &argv, int *status)
                                        if(status)
                                        {
                                                if(WIFEXITED(s))
-                                                       *status=WEXITSTATUS(s);
+                                                       *status = WEXITSTATUS(s);
                                                else
-                                                       *status=-1;
+                                                       *status = -1;
                                        }
                                        break;
                                }