From b046ce0212476f85ef276cfad84bf03881b3ce94 Mon Sep 17 00:00:00 2001
From: kh06089 <kh06089@ajou.ac.kr>
Date: Thu, 3 May 2018 23:11:47 +0900
Subject: [PATCH] process creation
---
src/built_in.c | 1 +
src/commands.c | 26 ++++++++++++++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/src/built_in.c b/src/built_in.c
index d0a19fc..848b6f0 100644
--- a/src/built_in.c
+++ b/src/built_in.c
@@ -3,6 +3,7 @@
#include <sys/types.h>
#include <sys/stat.h>
+#include <sys/wait.h>
#include <unistd.h>
#include <linux/limits.h>
diff --git a/src/commands.c b/src/commands.c
index 13e9c33..cf22df4 100644
--- a/src/commands.c
+++ b/src/commands.c
@@ -2,6 +2,15 @@
#include <stdlib.h>
#include <string.h>
#include <assert.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/wait.h>
+#include <errno.h>
+#include <pthread.h>
+
+
#include "commands.h"
#include "built_in.h"
@@ -49,6 +58,23 @@ int evaluate_command(int n_commands, struct single_command (*commands)[512])
return 0;
} else if (strcmp(com->argv[0], "exit") == 0) {
return 1;
+ }
+ else if(com->argv[0] > 0) {
+ pid_t pid;
+ pid = fork();
+
+ switch(pid)
+ {
+ case -1 :
+ printf("fail\n");
+ case 0 :
+ execv(com->argv[0], com->argv);
+ printf("exec fail\n");
+ default :
+ wait((int*)0);
+ printf("complete\n");
+ exit(0);
+ }
} else {
fprintf(stderr, "%s: command not found\n", com->argv[0]);
return -1;
--
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