怎么样在windows环境上编译,且能运行

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怎么样在windows环境上编译,且能运行10

各位好:
以下代码在linux上编译通过,我现在想让它在windows环境上编译并且能运行,能否指点我修改一下?
或者帮我看看win环境下有什么库能代替pwd.h和unistd.h实现.万分感谢!!!

/* 
 * jnohup.c
 * jnohup can be used to start JVM with specified user(no SIGHUP affection).
 * the $! retured will not be the daemon's process ID
 * The way to Compile it:
 *         gcc -s -o jnohup jnohup.c
 * If want to output debug information and debug the program:
 *         gcc -D -g -o jnohup jnohup.c
 */
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <pwd.h>
#include <unistd.h>
#include <signal.h>

#include <sys/types.h>

void Usage()
{
    printf("Usage: jnohup <username> <jvm> <java_method> [[[arg1] arg2] ... ]\n");
}


main(int argc, char * argv[])
{
    struct passwd *user_passwd = 0;
    pid_t unix_uid = 0;
    gid_t unix_gid = 0;
    char exec_file[256];

    if (getuid()) {
        Usage();
        printf("Please change to root before running javash!\n");
        exit(1);
    }

    if (argc < 3) {
        Usage();
        exit(2);
    }

    user_passwd = getpwnam(argv[1]);
    if ( (struct passwd *) 0 == user_passwd ) {
        Usage();
        printf("Please make sure that the user \"%s\" exists!\n", argv[1]);
        exit(3);
    }
    unix_uid = user_passwd->pw_uid;
    unix_gid = user_passwd->pw_gid;

#ifdef DEBUG
    printf("Change User to, %d:%d\n", unix_uid, unix_gid);
#endif

    if ( setgid(unix_gid) ) {
        printf("Change to unix user \"%s\" failure!\n", argv[1]);
        exit(4);
    }

    if ( setuid(unix_uid) ) {
        printf("Change to unix user \"%s\" failure!\n", argv[1]);
        exit(4);
    }

    
#ifdef DEBUG
    printf("After Change User, %d:%d\n", getuid(), getgid());
#endif

    strncpy(exec_file, argv[2], 256);
    argv = argv + 2;

#ifdef DEBUG
    printf("The command will be executed, arg=%s\n", argv[0]);
#endif

    signal(SIGHUP, SIG_IGN); /* ignore the SIGHUP signal */

    execvp(exec_file, argv);

    printf("Please make sure that \"%s\" is in PATH and  excutable!\n", exec_file);

}

我在Cygwin下面编译成exe成功了,运行是需要cygwin.dll,拷贝这个dll文件到这个exe文件目录中,运行成功.
但是在程序里面调用后报"Please change to root before running javash!\n",我这里就有点不明白了:
1.是不是linux程序通过Cygwin编译后,任何方法都能在win下面运行,比如getuid(),getpwnam()等?
2.下面的linux方法对应win的方法是什么:getuid(),getpwnam(arg),setgid(unix_gid),setuid(unix_uid)
getuid(), getgid(),signal(SIGHUP, SIG_IGN),execvp(exec_file, argv);