correction code

AnimalProcessing/Fundamentals/exec.c

@@ -42,4 +42,5 @@ printf("%d\n", r1);
 
     int r2 = execute_me("wrong", argv);
     printf("%d\n", r2);
-}*/
+}
+*/

AnimalProcessing/Fundamentals/pipe.c

@@ -44,7 +44,7 @@ void piped(){
         char buffer[2048];
         read(fd[0], buffer, sizeof(buffer));
         
-        printf("My child sends me : %s\n", buffer);
+        printf("My child sends me : %s", buffer);
         close(fd[0]); 
         wait(NULL);
 

AnimalProcessing/Fundamentals/wait.c

@@ -14,7 +14,7 @@ int fibo (int n){
 }
 int wait_child(int x){
 
-    if(x < 0) return -1;
+    if(x < 0) return 1;
 
     int wstatus;
     pid_t pid = fork();

AnimalProcessing/Proficiencies/dup.c

@@ -25,19 +25,29 @@ int duper(char **argv, char *output){
     int wstatus;
     pid_t pid = fork();
 
-    if(pid < 0) return 1;
+    if(pid < 0) {
+
+        printf("Something went wrong in duper.\n");
+        return 1; 
+    }
 
     //Child
     else if (pid == 0){
 
         // ouverture en mode write 
         FILE *file = fopen(output, "w");
-        if(!file) exit(-1);
+        if(!file) {
-
+            printf("Something went wrong in duper.\n");
+            exit(-1);
+        }
         
         int fno = fileno(file);
-        if(dup2(fno, STDOUT_FILENO) == -1) exit(-1);
+        if(dup2(fno, STDOUT_FILENO) == -1){
-        
+            
+            printf("Something went wrong in duper.\n");
+            exit(-1);
+         }
+
         fclose(file);
 
         execvp(argv[0],argv);

AnimalProcessing/Proficiencies/project.c

@@ -65,17 +65,21 @@ int exec_cmd(char** args){
     int wstatus;
     pid_t pid = fork();
 
-    if (pid < 0) exit(-1);
+    if (pid < 0){
+        free(args);
+        exit(-1);
+    }
     // Child
     else if (pid == 0){
 
-        if(strcmp(args[0] , "run") != 0) exit(-1);
+        //if(strcmp(args[0] , "run") != 0) exit(-1);
-        
+       
-        if(execvp(args[1], args + 1) != 0) exit(-1);
+        //on execute la commande et on return son code de fin
-        exit(0);
+        exit(execvp(args[1], args + 1));
-    
+
-        //if(execvp(args[0], args) == -1) exit(-1);
+        //if(execvp(args[1], args + 1) != 0) exit(-1);
         //exit(0);
+    
     }
 
     //Uncle... You're again ! Oh it's not my uncle it's my daddy !