从pid获取应用程序的真实路径? [英] Get real path of application from pid?

问题描述

如何获取流程详细信息，例如应用程序名称和进程ID的真实应用路径?

How can I get the process details like name of application & real path of application from process id?

我正在使用Mac OS X.

I am using Mac OS X.

推荐答案

如果知道PID，很容易获得进程名称/位置，只需使用proc_name或proc_pidpath.看下面的示例，该示例提供了处理路径:

It's quite easy to get the process name / location if you know the PID, just use proc_name or proc_pidpath. Have a look at the following example, which provides the process path:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <libproc.h>

int main (int argc, char* argv[])
{
    pid_t pid; int ret;
    char pathbuf[PROC_PIDPATHINFO_MAXSIZE];

    if ( argc > 1 ) {
        pid = (pid_t) atoi(argv[1]);
        ret = proc_pidpath (pid, pathbuf, sizeof(pathbuf));
        if ( ret <= 0 ) {
            fprintf(stderr, "PID %d: proc_pidpath ();\n", pid);
            fprintf(stderr, "    %s\n", strerror(errno));
        } else {
            printf("proc %d: %s\n", pid, pathbuf);
        }
    }

    return 0;
}

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