V10/cmd/uucp/getpwinfo.c

/*	@(#)getpwinfo.c	1.2
*/
#include "uucp.h"
VERSION(@(#)getpwinfo.c	1.2);

#include <pwd.h>
extern struct passwd *getpwuid(), *getpwnam();
extern char	*getlogin();

/*
 * get passwd file info for logname or uid
 *	uid	-> uid #	
 *	name	-> address of buffer to return ascii user name
 *		This will be set to pw->pw_name.
 *
 * return:
 *	0	-> success
 *	FAIL	-> failure (logname and uid not found)
 */
guinfo(uid, name)
int uid;
char *name;
{
	register struct passwd *pwd;
	char	*login_name;

	/* look for this user as logged in utmp */
	if ((login_name = getlogin()) != NULL) {
		strcpy(name, login_name);
		return(0);
	}

	/* no dice on utmp -- get first from passwd file */
	if ((pwd = getpwuid(uid)) == NULL) {
	    if ((pwd = getpwuid(UUCPUID)) == NULL)
		/* can not find uid in passwd file */
		return(FAIL);
	}

uid_found:
	(void) strcpy(name, pwd->pw_name);
	return(0);
}

/*
 * get passwd file info for name
 *	name	-> ascii user name
 *	uid	-> address of integer to return uid # in
 *	path	-> address of buffer to return working directory in
 * returns:
 *	0	-> success
 *	FAIL	-> failure
 */
gninfo(name, uid, path)
char *path, *name;
int *uid;
{
	register struct passwd *pwd;

	if ((pwd = getpwnam(name)) == NULL) {
		/* can not find name in passwd file */
		*path = '\0';
		return(FAIL);
	}

	(void) strcpy(path, pwd->pw_dir);
	*uid = pwd->pw_uid;
	return(0);
}