self_delete.c

self_delete.c

#include <stdio.h>
#include <unistd.h>
#include <dirent.h>  // For directory handling
#include <stdlib.h>  // For exit()

void ls() {
    // Open the directory
    DIR *dir = opendir(".");
    if (dir == NULL) {
        perror("Unable to open directory");
        exit(EXIT_FAILURE);
    }

    // Read and print directory entries
    struct dirent *entry;
    printf("######################\n");
    printf("Directory contents:\n");
    while ((entry = readdir(dir)) != NULL) {
        printf("%s\n", entry->d_name);
    }

    // Close the directory
    closedir(dir);
    printf("######################\n");
}


int main() {
    // Get the full path of the current executable
    char path[1024];
    ssize_t len = readlink("/proc/self/exe", path, sizeof(path) - 1);

    if (len == -1) {
        perror("readlink");
        return 1;
    }

    path[len] = '\0';  // Null-terminate the string

    printf("######################\n");
    printf("Executable path: %s\n", path);
    printf("######################\n");

    printf("Program is running...\n");
    printf("######################\n");
    ls();

    // Now attempt to delete the executable
    if (remove(path) == 0) {
        printf("######################\n");
        printf("Executable deleted successfully.\n");
        printf("######################\n");
        ls();
    } else {
        perror("Failed to delete executable");
        return 1;
    }

    printf("######################\n");
    // Sleep for 5 seconds
    printf("Sleep for 5 seconds.\n");

    sleep(5);

    printf("5 seconds have passed.\n");
    
    return 0;
}