--- /dev/null
+/* $Id$ */
+
+/* system( const char * )
+
+ This file is part of the Public Domain C Library (PDCLib).
+ Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <stdlib.h>
+
+/* This is an example implementation of system() fit for use with POSIX kernels.
+*/
+
+extern int fork( void );
+extern int execve( const char * filename, char * const argv[], char * const envp[] );
+extern int wait( int * status );
+
+int system( const char * string )
+{
+ char const * const argv[] = { "sh", "-c", (char const * const)string, NULL };
+ if ( string != NULL )
+ {
+ int pid = fork();
+ if ( pid == 0 )
+ {
+ execve( "/bin/sh", (char * * const)argv, NULL );
+ }
+ else if ( pid > 0 )
+ {
+ while( wait( NULL ) != pid );
+ }
+ }
+ return -1;
+}
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+#define SHELLCOMMAND "echo 'SUCCESS testing system()'"
+
+int main( void )
+{
+ TESTCASE( system( SHELLCOMMAND ) );
+ return TEST_RESULTS;
+}
+
+#endif