add: cat

src/disk.c

@@ -198,6 +198,8 @@ int do_rmdir(disk *disk, char *filepath) {
     free(parent_path);
     free(dirname);
 
+    persist_on_disk(disk);
+
     return (res == 1) ? 0 : -1;
 }
 
@@ -256,6 +258,8 @@ int do_rm(disk *disk, char *filepath) {
     free(parent_path);
     free(dirname);
 
+    persist_on_disk(disk);
+
     return (res == 1) ? 0 : -1;
 }
 
@@ -507,6 +511,42 @@ char *read_in_file(disk *d, int file_index) {
   return out;
 }
 
+int do_cat(disk *disk, char* path_to_file) {
+  (void)disk;
+  (void)path_to_file;
+
+  if (path_to_file == NULL) {
+    char buffer[4096];
+
+    while (fgets(buffer, 4096, stdin)) {
+      fprintf(stdout, "%s", buffer);
+    }
+  }
+
+  char full_path[1024] = {0};
+
+  format_path(full_path, path_to_file, 1024);
+
+  char *path_tmp = strdup(full_path);
+  int inode_index = 0;
+  char *token = strtok(path_tmp, "/");
+
+  while (token != NULL) {
+    inode_index = find_dir_inode_by_name(token, inode_index, disk);
+
+    token = strtok(NULL, "/");
+  }
+
+  if (disk->inodes[inode_index].filetype == TYPE_DIRECTORY) {
+    dprintf(STDERR_FILENO, "cat: '%s' is a directory\n", full_path);
+    return -1;
+  }
+
+  printf("%s\n", read_in_file(disk, inode_index));
+
+  return 1;
+}
+
 /**
  * @brief Créer un fichier "disk" de taille MAX_BYTES_PER_BLOC * MAX_BLOCS,
  * renvoi ce disque
@@ -535,9 +575,13 @@ disk create_disk() {
   d.inodes[0].blocs[0] = 0;        // utilise le bloc 0
   d.owned_blocs[0] = 1;            // le bloc 1 est maintenant occupé
 
-  strncpy(&d.blocs[0].datas[0], ".", MAX_INODE_NAME);
-  int point_inode = 1;
-  memcpy(&d.blocs[0].datas[MAX_INODE_NAME], &point_inode, sizeof(int));
+  //strncpy(&d.blocs[0].datas[0], ".", MAX_INODE_NAME);
+  //int point_inode = 1;
+  //d.owned_blocs[point_inode] = 1;
+  //memcpy(&d.blocs[0].datas[MAX_INODE_NAME], &point_inode, sizeof(int));
+
+  int test_file_inode = create_file(&d, &d.inodes[0], "test");
+  write_in_file(&d, test_file_inode, "coucou petit\ntest!!");
 
   int n = fwrite(&d, sizeof(disk), 1, fptr);
   if (n == 1) {

src/disk.h

@@ -20,5 +20,6 @@ int do_mkdir(disk* d, char *dirpath);
 int do_df(disk *d);
 int do_rm(disk *disk, char *filepath);
 int do_rmdir(disk *disk, char *filepath);
+int do_cat(disk *disk, char* path_to_file);
 int find_dir_inode_by_name(char *name, int dir_index, disk *d);
 void persist_on_disk(disk* d);

src/exec.c

@@ -102,6 +102,8 @@ int child_process_job(disk *d, char **args) {
     do_rm(d, args[1]);
   } else if (strcmp("rmdir", args[0]) == 0) {
     do_rmdir(d, args[1]);
+  } else if(strcmp("cat", args[0]) == 0) {
+    do_cat(d, args[1]);
   } else {
     dprintf(STDERR_FILENO, "%s: no such command\n", args[0]);
   }
@@ -109,6 +111,13 @@ int child_process_job(disk *d, char **args) {
 }
 
 int execute_cmd(disk *d, char **args) {
+
+  // cas ou l'utilisateur fait CTRD+D 
+  if (args[0] == NULL) {
+    printf("\n");
+    exit(EXIT_SUCCESS);
+  }
+
   if (strcmp(args[0], "cd") == 0) {
     return do_cd(d, args[1]);
   } else if (strcmp(args[0], "echo") == 0) {
@@ -122,6 +131,7 @@ int execute_cmd(disk *d, char **args) {
   }
 
   if (pid == 0) {
+    signal(SIGINT, SIG_DFL);
     return child_process_job(d, args);
   } else {
     int status;

src/parsing.c

@@ -1,5 +1,7 @@
 /** @file */
 #include "parsing.h"
+#include <stdio.h>
+#include <unistd.h>
 
 /**
  * @brief Attend que l'utilisateur appuie sur entrée pour récupérer la ligne écrite
@@ -91,7 +93,20 @@ void shell_loop(disk *disk) {
   } while (status);
 }
 
+void signal_handler(int sig) {
+  (void)sig;
+  char *user = get_env_value("USER");
+  if (user == NULL) {
+    exit(EXIT_FAILURE);
+  }
+  char *hostname = get_env_value("HOST");
+
+  dprintf(STDOUT_FILENO, "\n");
+  dprintf(STDOUT_FILENO, "%s@%s %s> ", user, hostname, get_env_value("PWD"));
+}
+
 void open_seyshell(disk* disk) {
+  signal(SIGINT, signal_handler); // le processus père ne s'arrête pas quand il y a un SIGINT = sigma boy
   env* envs = init_envs();
   shell_loop(disk);
   free(envs);