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114 lines
3.7 KiB
C
114 lines
3.7 KiB
C
/*
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* Copyright (c) 1988 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* GDR: This file could probably be cleaned up a bit ...
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*
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* $Id: getpass.c,v 1.2 1997/09/21 06:05:00 gdr Exp $
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*
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* This file is formatted for tab stops every 8 characters.
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*/
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#ifdef __ORCAC__
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segment "libc_gen__";
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#endif
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)getpass.c 5.9 (Berkeley) 5/6/91";
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#endif /* LIBC_SCCS and not lint */
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#include <sgtty.h>
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#include <sys/signal.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <stddef.h>
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#include <texttool.h>
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#include <sys/fcntl.h>
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#include <signal.h>
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#undef echo
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char *
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getpass(const char *prompt) {
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struct sgttyb term;
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register int ch;
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register char *p;
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FILE *fp, *outfp;
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long omask;
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int echo;
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static char buf[_PASSWORD_LEN + 1];
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/*
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* read and write to /dev/tty if possible; else read from
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* stdin and write to stderr.
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*/
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/* if ((outfp = fp = fopen(".tty", "w+")) == NULL) { */
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if ((outfp = fp = fopen(".tty", "r+")) == NULL) {
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outfp = stderr;
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fp = stdin;
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}
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setbuf(outfp,NULL);
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/*
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* note - blocking signals isn't necessarily the
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* right thing, but we leave it for now.
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*/
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omask = sigblock(sigmask(SIGINT)|sigmask(SIGTSTP));
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/*(void)tcgetattr(fileno(fp), &term); */
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gtty(fileno(fp),&term);
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if (echo = (term.sg_flags & ECHO)) {
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term.sg_flags &= ~ECHO;
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stty(fileno(fp),&term);
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/*(void)tcsetattr(fileno(fp), TCSAFLUSH|TCSASOFT, &term);*/
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}
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/* (void)fputs(prompt, outfp);*/
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/* rewind(outfp); */ /* implied flush */
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write(fileno(outfp),prompt,strlen(prompt));
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/* for (p = buf; (ch = getc(fp)) != EOF && ch != '\n';) */
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for (p = buf; (ch = ReadChar(0)&0x7F) != 0 && ch != '\n' && ch != '\r';)
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if (p < buf + _PASSWORD_LEN)
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*p++ = ch;
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*p = '\0';
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(void)write(fileno(outfp), "\r", 1);
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if (echo) {
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term.sg_flags |= ECHO;
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stty(fileno(fp), &term);
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}
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(void)sigsetmask(omask);
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if (fp != stdin)
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(void)fclose(fp);
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return(buf);
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}
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