add: touch

Makefile

@@ -1,7 +1,7 @@
 NAME        := seyshell
 DRIVE       := disk
 CC          := gcc 
-CFLAGS      := 
+CFLAGS      := -Wall -Wextra -Werror -g
 OBJ_DIR     := obj
 SRC_DIR     := src
 

src/disk.c

@@ -104,11 +104,46 @@ int create_directory(disk *disk, inode *parent, char *dirname) {
   return new_idx;
 }
 
+int do_touch(disk *d, char *filepath) {
+  char *parent_path;
+  char *dirname;
+
+  if (get_name_and_parent_path_by_absolute_path(filepath, &parent_path,
+                                                &dirname) == -1) {
+    dprintf(STDERR_FILENO, "mkdir: erreur jsp");
+    return -1;
+  }
+
+  char *token = strtok(parent_path, "/");
+  int dir_index = 0;
+
+  while (token != NULL) {
+
+    dir_index = find_dir_inode_by_name(token, dir_index, d);
+
+    if (dir_index == -1) {
+      dprintf(STDERR_FILENO, "touch: %s file does not exist\n", token);
+      return -1;
+    }
+
+    if (d->inodes[dir_index].filetype != TYPE_DIRECTORY) {
+      dprintf(STDERR_FILENO, "touch: %s is not a directory\n", token);
+      return -1;
+    }
+
+    token = strtok(NULL, "/");
+  }
+
+  create_file(d, &d->inodes[dir_index], dirname);
+  return 0;
+}
+
 int do_mkdir(disk *d, char *dirpath) {
   char *parent_path;
   char *dirname;
 
-    if (get_dirname_and_parent_path_by_absolute_path(dirpath, &parent_path, &dirname) == -1) {
+  if (get_name_and_parent_path_by_absolute_path(dirpath, &parent_path,
+                                                &dirname) == -1) {
     dprintf(STDERR_FILENO, "mkdir: erreur jsp");
     return -1;
   }
@@ -133,7 +168,6 @@ int do_mkdir(disk *d, char *dirpath) {
     token = strtok(NULL, "/");
   }
 
-    
   create_directory(d, &d->inodes[dir_index], dirname);
 
   return 0;
@@ -266,8 +300,6 @@ char *read_in_file(disk *d, int file_index) {
 void init_test_files(disk *d) {
   int inode_idx = create_file(d, &d->inodes[0], "test");
   write_in_file(d, inode_idx, "Contenu du fichier :)\n");
-  int dir_idx = create_directory(d, &d->inodes[0], "dir");
-  create_file(d, &d->inodes[dir_idx], "test1");
 }
 
 /**

src/disk.h

@@ -15,5 +15,6 @@
 disk create_disk();
 disk open_disk(char* filename);
 int do_ls(disk *d, char* path);
+int do_touch(disk *d, char *filepath);
 int do_mkdir(disk* d, char *dirpath);
 int find_dir_inode_by_name(char *name, int dir_index, disk *d);

src/exec.c

@@ -1,5 +1,7 @@
 /** @file */
 #include "exec.h"
+#include "disk.h"
+#include <string.h>
 
 int do_cd(disk *d, char *path) {
   char full_path[1024] = {0};
@@ -34,6 +36,8 @@ int child_process_job(disk *d, char **args) {
     do_ls(d, args[1]);
   } else if (strcmp("mkdir", args[0]) == 0) {
     do_mkdir(d, args[1]);
+  } else if (strcmp("touch", args[0]) == 0) {
+    do_touch(d, args[1]);
   } else {
     dprintf(STDERR_FILENO, "%s: no such command\n", args[0]);
   }

src/utils.c

@@ -12,29 +12,29 @@ void format_path(char *dest, char *src, int dest_len) {
   }
 }
 
-int get_dirname_and_parent_path_by_absolute_path(char* dirpath, char** parent_path, char** dirname) {
-      if (dirpath == NULL || strlen(dirpath) == 0) {
+int get_name_and_parent_path_by_absolute_path(char* path, char** parent_path, char** name) {
+      if (path == NULL || strlen(path) == 0) {
         return -1; 
     }
 
-    size_t len = strlen(dirpath);
-    if (len > 1 && dirpath[len - 1] == '/') {
-        dirpath[len - 1] = '\0';
+    size_t len = strlen(path);
+    if (len > 1 && path[len - 1] == '/') {
+        path[len - 1] = '\0';
     }
 
-    char *last_occ = strrchr(dirpath, '/');
+    char *last_occ = strrchr(path, '/');
 
     if (last_occ == NULL) {
         *parent_path = strdup(get_env_value("PWD"));
-        *dirname = strdup(dirpath);
+        *name = strdup(path);
     } else {
-        *dirname = strdup(last_occ + 1);
+        *name = strdup(last_occ + 1);
 
-        if (last_occ == dirpath) {
+        if (last_occ == path) {
             *parent_path = strdup("/");
         } else {
             *last_occ = '\0';
-            *parent_path = strdup(dirpath);
+            *parent_path = strdup(path);
             *last_occ = '/';
         }
     }

src/utils.h

@@ -8,4 +8,4 @@
 
 void canonicalize_path(char *path);
 void format_path(char *dest, char *src, int dest_len);
-int get_dirname_and_parent_path_by_absolute_path(char* dirpath, char** parent_path, char** dirname);
+int get_name_and_parent_path_by_absolute_path(char* dirpath, char** parent_path, char** dirname);