Possibilité de taper des commandes seules sans pipe

src/shell3.c

@@ -1,89 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/wait.h>
-
-#define MAX_LENGTH 200
-
-char** u_get_input(char* buffer, char* user_input, int i);
-
-int main()
-{
-  char *buffer = (char *) malloc(MAX_LENGTH);
-  char *user_input1 = (char *) malloc(MAX_LENGTH);
-  char *user_input2 = (char *) malloc(MAX_LENGTH);
-  int pid1, pid2;
-  int my_pipe[2];
-  int t = pipe(my_pipe);
-  if (t == -1)
-  {
-    printf("erreur à la création du pipe");
-    return 1;
-  }
-  char **args1 = u_get_input(buffer, user_input1, 1);
-  char **args2 = NULL;
-  while (strcmp(user_input1, "exit") != 0)
-  {
-    args2 = u_get_input(buffer, user_input2, 2);
-    pid1 = fork();
-
-    if (!pid1)
-    {
-      dup2(my_pipe[1], STDOUT_FILENO);
-      close(my_pipe[0]);
-      close(my_pipe[1]);
-      execvp(user_input1, args1);
-
-      return 0;
-    }
-    else { 
-      pid2 = fork();
-
-      if (!pid2) 
-      {
-        dup2(my_pipe[0], STDIN_FILENO);
-        close(my_pipe[1]);
-        close(my_pipe[0]);
-        execvp(user_input2, args2);
-        return 0;
-      }
-      else 
-      {
-        close(my_pipe[0]);
-        close(my_pipe[1]);
-        waitpid(pid2, NULL, 0);
-      }
-    }
-
-    free(args1);
-    free(args2);
-    args1 = u_get_input(buffer, user_input1, 1);
-    pipe(my_pipe);
-  }
-  free(args1);
-  free(buffer);
-  free(user_input1);
-  free(user_input2);
-  return 0;
-}
-
-char** u_get_input(char* buffer, char* user_input, int j)
-{
-  printf("\ncommande%d> ", j);
-  memset(buffer, 0, MAX_LENGTH);
-  memset(user_input, 0, MAX_LENGTH);
-  fgets(buffer, MAX_LENGTH, stdin);
-  strncpy(user_input, buffer, strlen(buffer)-1);
-
-  char *token = strtok(user_input, " ");
-  char **args = (char **) malloc(MAX_LENGTH);
-  int i = 0;
-  while (token != NULL && i < MAX_LENGTH)
-  {
-    args[i] = token;
-    i++;
-    token = strtok(NULL, " ");
-  }
-  return args;
-}

src/shellOpt.c

@@ -1,12 +1,17 @@
+/** 
+ * @file shellOpt.c
+ * @author rick <rick@gnous.eu>
+ * @date 2021
+ */
+
+#include "parser.h"
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 #include <sys/wait.h>
 
-#include "parser.h"
-
-
 int main()
 {
   int pid;
@@ -49,17 +54,17 @@ int main()
 */
 
 
-    int index = 0;
+  int index = 0;
   while (strcmp(args[0], "exit"))
   {
-    if (args[1] != NULL)
+    while (args[index] != NULL)
     {
-      while (args[index] != NULL)
+      pid = fork();
+      if (!pid)
       {
-        pid = fork();
+        tok_space(args[index], command);
-        if (!pid)
+        if (args[1] != NULL) 
         {
-          tok_space(args[index], command);
           if (args[index+1] == NULL)
             dup2(my_pipe[0], STDIN_FILENO);
           else if (index == 0)
@@ -68,24 +73,24 @@ int main()
             dup2(my_pipe[0], STDIN_FILENO);
             dup2(my_pipe[1], STDOUT_FILENO);
           }*/
-          
           close(my_pipe[0]);
           close(my_pipe[1]);
-          execvp(command[0], command);
-          return 0;
         }
-        else 
+
+        execvp(command[0], command);
+        return 0;
+      }
+      else 
+      {
+        if (args[index + 1] == NULL)
         {
-          if (args[index + 1] == NULL)
+          close(my_pipe[1]);
-          {
+          close(my_pipe[0]);
-            close(my_pipe[1]);
+          //wait(&result);
-            close(my_pipe[0]);
+          waitpid(pid, NULL, 0);
-            //wait(&result);
-            waitpid(pid, NULL, 0);
-          }
-            //waitpid(-1, NULL, 0);
-            index++;
         }
+          //waitpid(-1, NULL, 0);
+          index++;
       }
     }
 
@@ -97,7 +102,11 @@ int main()
       command[i] = (char *) calloc(MAX_LENGTH, sizeof(char));
     }
     parse_char(args, '|');
-    pipe(my_pipe);
+    if (pipe(my_pipe) == -1)
+    {
+      printf("erreur sur le pipe");
+      return 1;
+    }
     index = 0;
   }
 
@@ -108,4 +117,3 @@ int main()
   }
   return 0;
 }
-