feat(MP/cli): add application files

src/06-mini-project/cli/.clangd

@@ -0,0 +1,7 @@
+CompileFlags:
+    Add:
+        # Architecture and cross-compilation
+        - "--target=aarch64-linux-gnu"
+
+        # Setup sysroot for buildroot
+        - "--sysroot=/buildroot/output/host/aarch64-buildroot-linux-gnu/sysroot"

src/06-mini-project/cli/Makefile

@@ -0,0 +1,7 @@
+EXE=mp
+SRCS=$(shell find . -name "*.c")
+LDFLAGS+=-lpthread
+EXTRA_CFLAGS+=-I.
+
+# Include the standard application Makefile for the CSEL1 labs
+include ../../appl.mk

src/06-mini-project/cli/justfile

@@ -0,0 +1,14 @@
+@default:
+    just --list
+
+@build:
+    make
+
+@install: build
+    install -d /rootfs/usr/bin
+    install -m 0755 mp /rootfs/usr/bin/mp
+    echo "temp_cli installed successfully in /rootfs/usr/bin/"
+
+@clean:
+    make clean
+    rm -f -- mp

src/06-mini-project/cli/main.c

@@ -0,0 +1,96 @@
+// workspace/src/06-mini-project/cli/main.c
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+/* Relative path to your common IPC definitions */
+#include "../common/common_ipc.h"
+
+/**
+ * print_usage() - Display the help menu for the CLI tool.
+ */
+static void print_usage(const char *prog_name) {
+    printf("Temperature Regulator CLI\n");
+    printf("Usage:\n");
+    printf("  %s mode <0|1>      : Set mode (0 = Manual, 1 = Auto)\n", prog_name);
+    printf("  %s freq <hz>       : Set frequency in Hz (only works in Manual mode)\n", prog_name);
+    printf("  %s inc             : Increase frequency (only works in Manual mode)\n", prog_name);
+    printf("  %s dec             : Decrease frequency (only works in Manual mode)\n", prog_name);
+    printf("\nExamples:\n");
+    printf("  %s mode 1          (Switch to automatic mode)\n", prog_name);
+    printf("  %s freq 50         (Set frequency to 50 Hz)\n", prog_name);
+}
+
+int main(int argc, char *argv[]) {
+    int client_fd;
+    struct sockaddr_un server_addr;
+    ipc_msg_t msg = {0};
+
+    /* 1. Parse command line arguments */
+    if (argc < 2) {
+        print_usage(argv[0]);
+        return EXIT_FAILURE;
+    }
+
+    if (strcmp(argv[1], "mode") == 0 && argc == 3) {
+        msg.command = CMD_SET_MODE;
+        msg.value = atoi(argv[2]);
+        if (msg.value != 0 && msg.value != 1) {
+            printf("Error: Mode must be 0 (Manual) or 1 (Auto).\n");
+            return EXIT_FAILURE;
+        }
+    }
+    else if (strcmp(argv[1], "freq") == 0 && argc == 3) {
+        msg.command = CMD_SET_FREQ;
+        msg.value = atoi(argv[2]);
+        if (msg.value <= 0) {
+            printf("Error: Frequency must be a positive integer.\n");
+            return EXIT_FAILURE;
+        }
+    }
+    else if (strcmp(argv[1], "inc") == 0 && argc == 2) {
+        msg.command = CMD_INC_FREQ;
+        msg.value = 0; /* Ignored by daemon */
+    }
+    else if (strcmp(argv[1], "dec") == 0 && argc == 2) {
+        msg.command = CMD_DEC_FREQ;
+        msg.value = 0; /* Ignored by daemon */
+    }
+    else {
+        printf("Error: Invalid arguments.\n\n");
+        print_usage(argv[0]);
+        return EXIT_FAILURE;
+    }
+
+    /* 2. Create local Unix Domain Socket (Datagram) */
+    client_fd = socket(AF_UNIX, SOCK_DGRAM, 0);
+    if (client_fd < 0) {
+        perror("Error: Socket creation failed");
+        return EXIT_FAILURE;
+    }
+
+    /* 3. Prepare the destination address (the Daemon's socket) */
+    memset(&server_addr, 0, sizeof(server_addr));
+    server_addr.sun_family = AF_UNIX;
+    strncpy(server_addr.sun_path, SOCKET_PATH, sizeof(server_addr.sun_path) - 1);
+
+    /* 4. Send the binary structure to the Daemon */
+    ssize_t sent_bytes = sendto(client_fd, &msg, sizeof(msg), 0,
+                                (struct sockaddr *)&server_addr, sizeof(server_addr));
+
+    if (sent_bytes < 0) {
+        perror("Error: Failed to send message");
+        printf("Hint: Is the background daemon running and listening on '%s'?\n", SOCKET_PATH);
+        close(client_fd);
+        return EXIT_FAILURE;
+    }
+
+    /* 5. Cleanup */
+    printf("Success: Command sent to the daemon.\n");
+    close(client_fd);
+
+    return EXIT_SUCCESS;
+}