netname.c File Reference

#include <wintirpc.h>
#include <rpc/rpc.h>
#include "rpc_com.h"
#include <ctype.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

Include dependency graph for netname.c:

Go to the source code of this file.

Macros
#define	MAXHOSTNAMELEN   256
#define	NGROUPS   16
#define	TYPE_BIT(type)   (sizeof (type) * CHAR_BIT)
#define	TYPE_SIGNED(type)   (((type) -1) < 0)
#define	INT_STRLEN_MAXIMUM(type)    ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + 1 + TYPE_SIGNED(type))

Functions
int	getnetname (name)
int	user2netname (netname, const uid_t uid, const char *domain)
int	host2netname (netname, const char *host, const char *domain)

Variables
static char *	OPSYS = "unix"

Macro Definition Documentation

INT_STRLEN_MAXIMUM

#define INT_STRLEN_MAXIMUM

(

type

)

((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + 1 + TYPE_SIGNED(type))

Definition at line 69 of file netname.c.

MAXHOSTNAMELEN

#define MAXHOSTNAMELEN   256

Definition at line 53 of file netname.c.

NGROUPS

#define NGROUPS   16

Definition at line 56 of file netname.c.

TYPE_BIT

#define TYPE_BIT

(

type

)

(sizeof (type) * CHAR_BIT)

Definition at line 59 of file netname.c.

TYPE_SIGNED

#define TYPE_SIGNED

(

type

)

(((type) -1) < 0)

Definition at line 61 of file netname.c.

Function Documentation

getnetname()

int getnetname

(

name

)

Definition at line 78 of file netname.c.

{
#ifdef _WIN32
    /* I don't understand what these underlying routines are accomplishing??? */
    return 1;
#else
    uid_t uid;
 
    uid = geteuid();
    if (uid == 0) {
        return (host2netname(name, (char *) NULL, (char *) NULL));
    } else {
        return (user2netname(name, uid, (char *) NULL));
    }
#endif
}

Referenced by authdes_pk_seccreate().

host2netname()

int host2netname	(	netname	,
		const char *	host,
		const char *	domain
	)

Definition at line 126 of file netname.c.

{
    char *dfltdom;
    char hostname[MAXHOSTNAMELEN+1];
 
    if (domain == NULL) {
        if (__rpc_get_default_domain(&dfltdom) != 0) {
            return (0);
        }
        domain = dfltdom;
    }
    if (host == NULL) {
        (void) gethostname(hostname, sizeof(hostname));
        host = hostname;
    }
    if (strlen(domain) + 1 + strlen(host) + 1 + strlen(OPSYS) > MAXNETNAMELEN) {
        return (0);
    } 
    (void) sprintf(netname, "%s.%s@%s", OPSYS, host, domain);
    return (1);
}

Referenced by getnetname().

user2netname()

int user2netname	(	netname	,
		const uid_t	uid,
		const char *	domain
	)

Definition at line 101 of file netname.c.

{
    char *dfltdom;
 
    if (domain == NULL) {
        if (__rpc_get_default_domain(&dfltdom) != 0) {
            return (0);
        }
        domain = dfltdom;
    }
    if (strlen(domain) + 1 + INT_STRLEN_MAXIMUM(u_long) + 1 + strlen(OPSYS) > MAXNETNAMELEN) {
        return (0);
    }
    (void) sprintf(netname, "%s.%ld@%s", OPSYS, (u_long)uid, domain);   
    return (1);
}

Referenced by getnetname().

Variable Documentation

OPSYS

char* OPSYS = "unix"

static

Definition at line 72 of file netname.c.

Referenced by host2netname(), and user2netname().