add: exec command

Makefile

@@ -1,5 +1,5 @@
 NAME        := seyshell
-CC          := gcc
+CC          := gcc 
 CFLAGS      := -Wall -Wextra -Werror -g
 OBJ_DIR     := obj
 SRC_DIR     := src

src/exec.c

@@ -1,3 +1,28 @@
 #include "exec.h"
+#include <stdio.h>
+#include <unistd.h>
 
-void execute_cmd(void) {}
+int is_builtin_cmd(char *executable) {
+  (void)executable;
+  return 0;
+}
+
+int execute_cmd(char **args) {
+  if (!is_builtin_cmd(args[0])) {
+    int pid = fork();
+    if (pid == -1)
+      return -1;
+
+    if (pid == 0) {
+      // Ce que va exécuter l'enfant
+      int status_code = execvp(args[0], args);
+      perror("seyshell");
+      return status_code;
+    } else {
+      // Ce que va exécuter le parent
+      int status;
+      waitpid(pid, &status, WUNTRACED);
+    }
+  }
+  return 1;
+}

src/exec.h

@@ -1,4 +1,6 @@
 #pragma once
+#include <stdio.h>
+#include <sys/wait.h>
 
-int is_builtin_cmd(void);
-void execute_cmd(void);
+int is_builtin_cmd(char *executable);
+int execute_cmd(char **args);

src/main.c

@@ -5,11 +5,8 @@
 int main(int argc, char *argv[], char *envp[]) {
   (void)argc;
   (void)argv;
+  (void)envp;
 
-  int index = 0;
-  while (envp[index]) {
-    printf("%s\n", envp[index++]);
-  }
   shell_loop();
 
   return EXIT_SUCCESS;

src/parsing.c

@@ -3,6 +3,7 @@
 #include "exec.h"
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <unistd.h>
 
 char *read_line() {
@@ -29,8 +30,23 @@ char *read_line() {
 }
 
 char **split_line(char *line) {
-  (void)line;
-  return NULL;
+  char **args = malloc(BUFSIZE * sizeof(char *));
+  int i = 0;
+  if (args == NULL) {
+    dprintf(STDERR_FILENO, "Allocation error");
+    exit(EXIT_FAILURE);
+  }
+
+  char *token = strtok(line, " ");
+
+  while (token != NULL) {
+    args[i] = token;
+    i++;
+    token = strtok(NULL, " ");
+  }
+  args[i++] = NULL;
+
+  return args;
 }
 
 void shell_loop(void) {
@@ -41,11 +57,10 @@ void shell_loop(void) {
   do {
     dprintf(STDOUT_FILENO, "> ");
     line = read_line();
-    dprintf(STDOUT_FILENO, "%s\n", line);
     args = split_line(line);
-    execute_cmd();
+    status = execute_cmd(args);
 
-    // free(line);
+    free(line);
     free(args);
   } while (status);
 }