feat(utilities): added the get_file_content_with_size to properly handle binary files

include/utilities.h

@@ -62,5 +62,6 @@ int cut_path(char*, char*);
 void combine_path(char*, char*);
 PathType get_path_type(const char*);
 char* get_file_content(char*);
+char* get_file_content_with_size(char*, size_t*);
 
 #endif // UTILITIES_H

src/utilities.c

@@ -482,3 +482,24 @@ char* get_file_content(char* path) {
 
     return buf;
 }
+
+char* get_file_content_with_size(char* path, size_t* size) {
+    if (!path || !size) return NULL;
+
+    FILE* file = fopen(path, "rb");
+    if (!file) { perror("ERROR: could not open file in get_file_content_with_size!"); return NULL; }
+    if (fseek(file, 0, SEEK_END) != 0) { fclose(file); return NULL; }
+    long file_size = ftell(file);
+    if (file_size < 0) { perror("ERROR: file size is negative in get_file_content_with_size!"); fclose(file); return NULL; }
+    if (fseek(file, 0, SEEK_SET) != 0) { fclose(file); return NULL; }
+    size_t n = (size_t)file_size;
+
+    char* buf = (char*)malloc(n);
+    if (!buf) { fclose(file); return NULL; }
+
+    size_t got = fread(buf, 1, n, file);
+    fclose(file);
+
+    *size = got;
+    return buf;
+}