bsdport.c

压缩包中包含LINUX下多个命令的源码

#ifndef ORIGINAL_SOURCE

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <sys/stat.h>
#include <unistd.h>
#include <pwd.h>
#include <grp.h>
#include <stdio.h>

#include "bsdport.h"

void
strmode(mode_t mode, char *bp)
{
	switch (mode&S_IFMT) {
	case S_IFSOCK: bp[0]='s'; break;
	case S_IFLNK: bp[0]='l'; break;
	case S_IFREG: bp[0]='-'; break;
	case S_IFBLK: bp[0]='b'; break;
	case S_IFDIR: bp[0]='d'; break;
	case S_IFCHR: bp[0]='c'; break;
	case S_IFIFO: bp[0]='p'; break;
	default: bp[0]='?'; break;
	}
	if (mode&S_IRUSR) bp[1]='r';
	else bp[1]='-';
	if (mode&S_IWUSR) bp[2]='w';
	else bp[2]='-';
	if (mode&S_IXUSR) {
		if (mode&S_ISUID) bp[3]='s';
		else bp[3]='x';
	} else {
		if (mode&S_ISUID) bp[3]='S';
		else bp[3]='-';
	}
	if (mode&S_IRGRP) bp[4]='r';
	else bp[4]='-';
	if (mode&S_IWGRP) bp[5]='w';
	else bp[5]='-';
	if (mode&S_IXGRP) {
		if (mode&S_ISGID) bp[6]='s';
		else bp[6]='x';
	} else {
		if (mode&S_ISGID) bp[6]='S';
		else bp[6]='-';
	}
	if (mode&S_IROTH) bp[7]='r';
	else bp[7]='-';
	if (mode&S_IWOTH) bp[8]='w';
	else bp[8]='-';
	if (mode&S_IXOTH) {
		if (mode&S_ISVTX) bp[9]='t';
		else bp[9]='x';
	} else {
		if (mode&S_ISVTX) bp[9]='T';
		else bp[9]='-';
	}
	bp[10]=' ';
	bp[11]=0;
}

char *
user_from_uid(uid_t uid, int ignored)
{
	struct passwd *pw;
	static char buf[16];

	pw = getpwuid(uid);
	if ( pw )
		return pw->pw_name;
	else {
		snprintf(buf, sizeof(buf), "%u", uid);
		return buf;
	}
}

char *
group_from_gid(gid_t gid, int ignored)
{
	struct group *gr;
	static char buf[16];

	gr = getgrgid(gid);
	if ( gr )
		return gr->gr_name;
	else {
		snprintf(buf, sizeof(buf), "%u", gid);
		return buf;
	}
}

#endif /* not ORIGINAL_SOURCE */