/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ /* All Rights Reserved */ /* * Copyright (c) 1997, by Sun Microsystems, Inc. * All rights reserved. */ /*LINTLIBRARY*/ #include #include #include #include #include #include #include #include "libadm.h" #define PROMPT "Enter the login name of an existing user" #define MESG "Please enter the login name of an existing user." #define ALTMESG "Please enter one of the following login names:\\n\\t" #define MALSIZ 64 #define DELIM1 '/' #define BLANK ' ' static char * setmsg(int disp) { struct passwd *pwdptr; int count; size_t n, m; char *msg; if (disp == 0) return (MESG); m = MALSIZ; n = sizeof (ALTMESG); msg = (char *) calloc(m, sizeof (char)); (void) strcpy(msg, ALTMESG); setpwent(); count = 0; while (pwdptr = getpwent()) { n += strlen(pwdptr->pw_name) + 2; while (n >= m) { m += MALSIZ; msg = (char *) realloc(msg, m*sizeof (char)); } if (count++) (void) strcat(msg, ", "); (void) strcat(msg, pwdptr->pw_name); } endpwent(); return (msg); } int ckuid_dsp(void) { struct passwd *pwdptr; /* if display flag is set, then list out passwd file */ if (ckpwdfile() == 1) return (1); setpwent(); while (pwdptr = getpwent()) (void) printf("%s\n", pwdptr->pw_name); endpwent(); return (0); } int ckuid_val(char *usrnm) { int valid; setpwent(); valid = (getpwnam(usrnm) ? 0 : 1); endpwent(); return (valid); } int ckpwdfile(void) /* check to see if passwd file there */ { struct passwd *pwdptr; setpwent(); pwdptr = getpwent(); if (!pwdptr) { endpwent(); return (1); } endpwent(); return (0); } void ckuid_err(short disp, char *error) { char *msg; msg = setmsg(disp); puterror(stdout, msg, error); if (disp) free(msg); } void ckuid_hlp(int disp, char *help) { char *msg; msg = setmsg(disp); puthelp(stdout, msg, help); if (disp) free(msg); } int ckuid(char *uid, short disp, char *defstr, char *error, char *help, char *prompt) { char *defmesg, input[MAX_INPUT]; defmesg = NULL; if (!prompt) prompt = PROMPT; start: putprmpt(stderr, prompt, NULL, defstr); if (getinput(input)) { if (disp && defmesg) free(defmesg); return (1); } if (!strlen(input)) { if (defstr) { if (disp && defmesg) free(defmesg); (void) strcpy(uid, defstr); return (0); } if (!defmesg) defmesg = setmsg(disp); puterror(stderr, defmesg, error); goto start; } else if (strcmp(input, "?") == 0) { if (!defmesg) defmesg = setmsg(disp); puthelp(stderr, defmesg, help); goto start; } else if (ckquit && (strcmp(input, "q") == 0)) { if (disp && defmesg) free(defmesg); return (3); } else if (ckuid_val(input)) { if (!defmesg) defmesg = setmsg(disp); puterror(stderr, defmesg, error); goto start; } (void) strcpy(uid, input); if (disp && defmesg) free(defmesg); return (0); }