115 lines
2.5 KiB
C
Executable File
115 lines
2.5 KiB
C
Executable File
/*
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* Copyright (c) 1986-1992 by Sun Microsystems Inc.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <limits.h>
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#include <sys/types.h>
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#include <sys/statvfs.h>
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#include "ypsym.h"
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#ifdef SYSVCONFIG
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extern void sysvconfig();
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#endif
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extern int yp_getalias();
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/*
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* Given a domain name, return its system v alias.
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* If there is no alias name in the alias file,
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* create one. Rule of creation is to take the 1st
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* NAME_MAX-4 characters and concatenate the last 4 characters.
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* If the alias in the file is too long, trim off the end.
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*/
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static void
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mkdomain_alias(name, result)
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char *name, *result;
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{
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int retval;
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char tmpbuf[MAXNAMLEN] = {NULL};
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retval = yp_getalias(name, result, NAME_MAX);
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if (retval == -1) {
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if ((int)strlen(name) > NAME_MAX) {
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strncpy(result, name, NAME_MAX-4);
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strncpy(&result[NAME_MAX-4],
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&name[strlen(name)-4], 4);
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result[NAME_MAX] = '\0';
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} else
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strcpy(result, name);
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} else if ((retval) && (int)strlen(result) > NAME_MAX) {
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strncpy(tmpbuf, result, NAME_MAX);
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strcpy(result, tmpbuf);
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}
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}
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/*
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* Given a map name, return its system v alias .
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* If there is no alias name in the alias file,
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* create one. Rule of creation is to take the 1st
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* MAXALIASLEN-4 characters and concatenate the last 4 characters.
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* If the alias in the file is too long, trim off the end.
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*/
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static void
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mkmap_alias(name, result)
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char *name, *result;
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{
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int retval;
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char tmpbuf[MAXNAMLEN] = {NULL};
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retval = yp_getalias(name, result, MAXALIASLEN);
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if (retval == -1) {
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if ((int)strlen(name) > MAXALIASLEN) {
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(void) strncpy(result, name, MAXALIASLEN-4);
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(void) strncpy(&result[MAXALIASLEN-4],
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&name[strlen(name)-4], 4);
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result[MAXALIASLEN] = '\0';
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} else
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(void) strcpy(result, name);
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} else if ((retval) && (int)strlen(result) > MAXALIASLEN) {
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(void) strncpy(tmpbuf, result, MAXALIASLEN);
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(void) strcpy(result, tmpbuf);
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}
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}
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#ifdef MAIN
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/*
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* executed only for the command ypalias
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* and not when ypbind or ypserv make use
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* of this file.
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*/
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static char usage[] =
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"Usage:\n\
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ypalias -d domainname\n\
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ypalias mapname\n";
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main(argc, argv)
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char **argv;
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{
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char result[MAXNAMLEN] = {NULL};
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#ifdef SYSVCONFIG
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sysvconfig();
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#endif
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if (argc <= 1)
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goto err;
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if (strcmp(argv[1], "-d") == 0)
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if (argc == 3) mkdomain_alias(argv[2], (char *)&result);
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else goto err;
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else if (argc == 2)
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mkmap_alias(argv[1], (char *)&result);
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else
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goto err;
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(void) printf("%s", result);
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return (0);
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err:
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(void) fprintf(stderr, usage);
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return (1);
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}
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#endif MAIN
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