First Commit

src/shared/utils.c

@@ -0,0 +1,77 @@
+#include "utils.h"
+#include "libgen.h"
+#include "sys/stat.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+void mkdir_r(char *path) {
+  char *path_duplicate = malloc(strlen(path) + 1);
+  strcpy(path_duplicate, path);
+  char *path_current = (char *)malloc((strlen(path) + 2) * sizeof(char));
+  char *path_current_position = path_current;
+  const char *delimiter = "/";
+  char *part = strtok(path_duplicate, delimiter);
+  // struct stat st;
+  while (part != NULL) {
+    strcpy(path_current_position, part);
+    path_current_position += strlen(part) * sizeof(char);
+    strcpy(path_current_position, "/");
+    path_current_position += sizeof(char);
+    struct stat st;
+    if (stat(path_current, &st) != 0) {
+      if (mkdir(path_current, 0755) != 0) {
+        perror("Could not create directory");
+        exit(EXIT_FAILURE);
+      }
+    }
+    part = strtok(NULL, delimiter);
+  }
+  free(path_duplicate);
+  free(path_current);
+}
+
+char *str_dup(char *string) {
+  if (string == NULL)
+    return NULL;
+  char *new_string = (char *)malloc(strlen(string) + 1);
+  strcpy(new_string, string);
+  return new_string;
+}
+
+void to_disk(char *path, void *data, unsigned long long data_size) {
+  char *directory = str_dup(path);
+  char *dir_to_free = directory;
+  directory = dirname(directory);
+  mkdir_r(directory);
+  FILE *file_pointer = fopen(path, "wb");
+  if (file_pointer == NULL) {
+    perror("Could not open File");
+    exit(EXIT_FAILURE);
+  }
+  fwrite(data, 1, data_size, file_pointer);
+  fclose(file_pointer);
+  free(dir_to_free);
+}
+
+char *path_cat(char *path1, char *path2) {
+  if (path1 == NULL || *path1 == '\0')
+    return str_dup(path2);
+  if (path2 == NULL || *path2 == '\0')
+    return str_dup(path1);
+  int path1_len = strlen(path1);
+  int path2_len = strlen(path2);
+  char *path2_pointer = path2;
+  if (path1[path1_len - 1] == '/')
+    path1_len -= 1;
+  if (path2[0] == '/') {
+    path2_pointer += 1;
+    path2_len -= 1;
+  }
+  char *new_path = malloc(path1_len + path2_len + 2);
+  memcpy(new_path, path1, path1_len);
+  new_path[path1_len] = '/';
+  memcpy(new_path + path1_len + 1, path2_pointer, path2_len);
+  new_path[path1_len + path2_len + 1] = '\0';
+  return new_path;
+}