added database

src/file.c

@@ -0,0 +1,34 @@
+#include "file.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+char *read_file(const char *path) {
+  FILE *fp = fopen(path, "rb");
+  if (fp == NULL) {
+    perror("Error opening file");
+    return nullptr;
+  }
+
+  fseek(fp, 0, SEEK_END);
+  long file_size = ftell(fp);
+  rewind(fp);
+
+  char *buffer = (char *) malloc(file_size + 1);
+  if (!buffer) {
+    perror("Error allocating memory");
+    fclose(fp);
+    return nullptr;
+  }
+
+  size_t bytes_read = fread(buffer, 1, file_size, fp);
+  if (bytes_read != file_size) {
+    perror("Error reading file");
+    free(buffer);
+    fclose(fp);
+    return nullptr;
+  }
+
+  buffer[file_size] = '\0';
+  fclose(fp);
+  return buffer;
+}