double_pipe.c

AnimalProcessing/Proficiencies/project.c

@@ -60,6 +60,8 @@ char** split(char* line){
 
 int exec_cmd(char** args){
 
+    if(!args || !*args) return -1;
+    
     int wstatus;
     pid_t pid = fork();
 
@@ -85,7 +87,7 @@ int exec_cmd(char** args){
         if(waitpid(pid, &wstatus, 0) ==  -1) return -1; 
         
         if( WIFEXITED(wstatus)){
-            if(WEXITSTATUS(wstatus) == 255) return 1;
+            if(WEXITSTATUS(wstatus) == 255) return -1;
             else return WEXITSTATUS(wstatus);
     }}
     return 0;
@@ -135,7 +137,7 @@ int execution_loop(){
             //execution du run <commande> via le child 
             else if (strcmp(args[0], "run") == 0){
                 //printf("test\n");
-                last_code = exec_cmd(args);
+                if(args[1]) last_code = exec_cmd(args);
             }
             
             //interrogation du last_code 
@@ -158,11 +160,11 @@ int is_terminal()
 {
     return isatty(STDIN_FILENO) && isatty(STDOUT_FILENO);
 }
+/*
 int main() {
   printf("\n Code de fin : %i\n",execution_loop());
 }
-
-
+*/
 
 /*
 int main(){