无线接入点实现帧转发c语言代码
时间: 2023-12-25 17:09:32 浏览: 28
以下是一个简单的无线接入点实现帧转发的C语言代码示例:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX_DEVICES 10
#define MAX_FRAME_SIZE 1024
typedef struct device {
char mac_address[18];
int connected;
} device_t;
device_t devices[MAX_DEVICES];
void add_device(char *mac_address) {
int i;
for (i = 0; i < MAX_DEVICES; i++) {
if (!devices[i].connected) {
strcpy(devices[i].mac_address, mac_address);
devices[i].connected = 1;
printf("Device added: %s\n", mac_address);
return;
}
}
printf("ERROR: Maximum number of devices reached\n");
}
void remove_device(char *mac_address) {
int i;
for (i = 0; i < MAX_DEVICES; i++) {
if (devices[i].connected && strcmp(devices[i].mac_address, mac_address) == 0) {
devices[i].connected = 0;
printf("Device removed: %s\n", mac_address);
return;
}
}
printf("ERROR: Device not found\n");
}
void forward_frame(char *mac_address, char *frame, int size) {
int i;
for (i = 0; i < MAX_DEVICES; i++) {
if (devices[i].connected && strcmp(devices[i].mac_address, mac_address) != 0) {
printf("Forwarding frame from %s to %s\n", mac_address, devices[i].mac_address);
// send frame to device[i]
}
}
}
int main() {
int running = 1;
while (running) {
char command[10];
scanf("%s", command);
if (strcmp(command, "add") == 0) {
char mac_address[18];
scanf("%s", mac_address);
add_device(mac_address);
} else if (strcmp(command, "remove") == 0) {
char mac_address[18];
scanf("%s", mac_address);
remove_device(mac_address);
} else if (strcmp(command, "frame") == 0) {
char mac_address[18];
char frame[MAX_FRAME_SIZE];
int size;
scanf("%s %d", mac_address, &size);
fgets(frame, MAX_FRAME_SIZE, stdin);
forward_frame(mac_address, frame, size);
} else if (strcmp(command, "exit") == 0) {
running = 0;
} else {
printf("ERROR: Invalid command\n");
}
}
return 0;
}
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