linux下实现杀死进程c程序

最新推荐文章于 2025-12-06 19:52:12 发布

原创最新推荐文章于 2025-12-06 19:52:12 发布 · 99 阅读

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>

/**
 * 杀死指定进程名的所有进程
 * @param process_name 要杀死的进程名
 * @return 成功杀死的进程数量，-1表示执行错误
 */
int kill_process_by_name(const char *process_name) {
    FILE *fp;
    char buffer[1024];
    char cmd1[256];
    pid_t pid;
    int kill_count = 0;
    
    if (process_name == NULL || strlen(process_name) == 0) {
        fprintf(stderr, "Error: process name cannot be empty\n");
        return -1;
    }
    sprintf(cmd1,"ps aux | grep %s | grep -v grep | head -1 | awk '{print $1}'",process_name);
    // 使用ps aux命令获取所有进程信息
    fp = popen(cmd1, "r");
    if (fp == NULL) {
        perror("popen failed");
        return -1;
    }
    printf("Searching for process: %s\n", process_name);
    // 跳过标题行
    if (fgets(buffer, sizeof(buffer), fp) == NULL) 
    {
        pclose(fp);
        return 0; // 没有进程信息
    }
    myDebug("get buffer is:%s\n",buffer);
    pid=atoi(buffer);
    myDebug("kill pid=%d\n",pid);
    if (kill(pid, SIGKILL) == 0) 
    {
        printf("Successfully killed process %s (PID: %d)\n", process_name, pid);
        kill_count++;
    } 
    else 
    {
        perror("kill failed");
    }
    pclose(fp);
    return kill_count;
}