60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
/*
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* Copyright (c) 1985 Regents of the University of California.
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* All rights reserved. The Berkeley software License Agreement
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* specifies the terms and conditions for redistribution.
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*/
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#ifndef lint
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static char sccsid[] = "@(#)getpass.c 1.1 92/07/30 SMI"; /* from UCB 5.4 3/7/86 */
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#endif not lint
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#include <stdio.h>
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#include <signal.h>
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#include <sgtty.h>
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static struct sgttyb ttyb;
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static int flags;
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static FILE *fi;
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static void
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intfix()
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{
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ttyb.sg_flags = flags;
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if (fi != NULL)
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(void) stty(fileno(fi), &ttyb);
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exit(SIGINT);
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}
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char *
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mygetpass(prompt)
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char *prompt;
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{
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register char *p;
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register c;
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static char pbuf[50+1];
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void (*sig)();
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if ((fi = fopen("/dev/tty", "r")) == NULL)
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fi = stdin;
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else
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setbuf(fi, (char *)NULL);
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sig = signal(SIGINT, intfix);
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(void) gtty(fileno(fi), &ttyb);
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flags = ttyb.sg_flags;
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ttyb.sg_flags &= ~ECHO;
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(void) stty(fileno(fi), &ttyb);
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fprintf(stderr, "%s", prompt); (void) fflush(stderr);
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for (p=pbuf; (c = getc(fi))!='\n' && c!=EOF;) {
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if (p < &pbuf[sizeof(pbuf)-1])
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*p++ = c;
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}
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*p = '\0';
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fprintf(stderr, "\n"); (void) fflush(stderr);
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ttyb.sg_flags = flags;
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(void) stty(fileno(fi), &ttyb);
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(void) signal(SIGINT, sig);
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if (fi != stdin)
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(void) fclose(fi);
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return(pbuf);
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}
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