diff options
Diffstat (limited to 'netbsd_getpass.c')
| -rw-r--r-- | netbsd_getpass.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/netbsd_getpass.c b/netbsd_getpass.c new file mode 100644 index 0000000..4e79ed6 --- /dev/null +++ b/netbsd_getpass.c @@ -0,0 +1,114 @@ +/* $NetBSD: getpass.c,v 1.15 2003/08/07 16:42:50 agc Exp $ */ + +/* + * Copyright (c) 1988, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if 0 +#include <sys/cdefs.h> +#if defined(LIBC_SCCS) && !defined(lint) +#if 0 +static char sccsid[] = "@(#)getpass.c 8.1 (Berkeley) 6/4/93"; +#else +__RCSID("$NetBSD: getpass.c,v 1.15 2003/08/07 16:42:50 agc Exp $"); +#endif +#endif /* LIBC_SCCS and not lint */ + +#include "namespace.h" +#endif + +#include <assert.h> +#include <paths.h> +#include <pwd.h> +#include <signal.h> +#include <stdio.h> +#include <termios.h> +#include <unistd.h> + +#if 0 +#ifdef __weak_alias +__weak_alias(getpass,_getpass) +#endif +#endif + +char * +getpass(prompt) + const char *prompt; +{ + struct termios term; + int ch; + char *p; + FILE *fp, *outfp; + int echo; + static char buf[_PASSWORD_LEN + 1]; + sigset_t oset, nset; + +#if 0 + _DIAGASSERT(prompt != NULL); +#endif + + /* + * read and write to /dev/tty if possible; else read from + * stdin and write to stderr. + */ + if ((outfp = fp = fopen(_PATH_TTY, "w+")) == NULL) { + outfp = stderr; + fp = stdin; + } + + /* + * note - blocking signals isn't necessarily the + * right thing, but we leave it for now. + */ + sigemptyset(&nset); + sigaddset(&nset, SIGINT); + sigaddset(&nset, SIGTSTP); + (void)sigprocmask(SIG_BLOCK, &nset, &oset); + + (void)tcgetattr(fileno(fp), &term); + if ((echo = (term.c_lflag & ECHO)) != 0) { + term.c_lflag &= ~ECHO; + (void)tcsetattr(fileno(fp), TCSAFLUSH /*|TCSASOFT*/, &term); + } + if (prompt != NULL) + (void)fputs(prompt, outfp); + rewind(outfp); /* implied flush */ + for (p = buf; (ch = getc(fp)) != EOF && ch != '\n';) + if (p < buf + _PASSWORD_LEN) + *p++ = ch; + *p = '\0'; + (void)write(fileno(outfp), "\n", 1); + if (echo) { + term.c_lflag |= ECHO; + (void)tcsetattr(fileno(fp), TCSAFLUSH/*|TCSASOFT*/, &term); + } + (void)sigprocmask(SIG_SETMASK, &oset, NULL); + if (fp != stdin) + (void)fclose(fp); + return(buf); +} |