added basic read, and an improved HAL

hal/ports/hal_file.c

@@ -0,0 +1,117 @@
+#include "hal_file.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+typedef struct hal_file_type {
+    FILE* fp;
+} hal_file;
+
+// Initialization logic, if needed
+hal_file_code setup() {
+    return HAL_SUCCESS;
+}
+
+hal_file_code open(hal_file** file, const char* filename, const char* mode) {
+    if (!file || !filename || !mode) {
+        return HAL_ERROR_INPUT;
+    }
+
+    *file = (hal_file*)malloc(sizeof(hal_file));
+    if (!(*file)) {
+        return HAL_ERROR_ALLOC;
+    }
+
+    (*file)->fp = fopen(filename, mode);
+    if (!(*file)->fp) {
+        free(*file);
+        return HAL_ERROR_OPEN;
+    }
+
+    return HAL_SUCCESS;
+}
+
+hal_file_code read(hal_file* file, char* buffer, const int size) {
+    if (!file || !file->fp || !buffer || size <= 0) {
+        return HAL_ERROR_INPUT;
+    }
+
+    scanf()
+
+    if (fgets(buffer, size, file->fp) == NULL) {
+        return HAL_ERROR_READ;
+    }
+
+    return HAL_SUCCESS;
+}
+
+hal_file_code write(hal_file* file, const char* message) {
+    if (!file || !file->fp || !message) {
+        return HAL_ERROR_INPUT;
+    }
+
+    if (fputs(message, file->fp) == EOF) {
+        return HAL_ERROR_WRITE;
+    }
+
+    return HAL_SUCCESS;
+}
+
+hal_file_code close(hal_file* file) {
+    if (!file || !file->fp) {
+        return HAL_ERROR_INPUT;
+    }
+
+    if (fclose(file->fp) != 0) {
+        return HAL_ERROR_CLOSE;
+    }
+
+    free(file);
+    return HAL_SUCCESS;
+}
+
+hal_file_code crename(const char* oldname, const char* newname) {
+    if (!oldname || !newname) {
+        return HAL_ERROR_INPUT;
+
+    }
+
+    if (rename(oldname, newname) != 0) {
+        return HAL_ERROR_RENAME;
+    }
+
+    return HAL_SUCCESS;
+}
+
+hal_file_code cremove(const char* filename) {
+    if (!filename) {
+        return HAL_ERROR_INPUT;
+    }
+
+    if (remove(filename) != 0) {
+        return HAL_ERROR_REMOVE;
+    }
+
+    return HAL_SUCCESS;
+}
+
+// deletion logic, if needed
+hal_file_code teardown() {
+    return HAL_SUCCESS;
+}
+
+// Expose into global variable
+hal_file_operations hal_file_manager = {
+    .setup = setup,
+    .open = open,
+    .read = read,
+    .write = write,
+    .close = close,
+    .rename = crename,
+    .remove = cremove,
+    .teardown = teardown
+};
+
+const int HAL_MAX_FILENAME_SIZE = FILENAME_MAX;
+const int HAL_MAX_FILES_OPEN = FOPEN_MAX;
+const int HAL_EOF = EOF;