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Diffstat (limited to 'src/getpass.c')
| -rw-r--r-- | src/getpass.c | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/src/getpass.c b/src/getpass.c new file mode 100644 index 000000000..b441a5ad9 --- /dev/null +++ b/src/getpass.c @@ -0,0 +1,267 @@ +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al. + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms + * are also available at http://curl.haxx.se/docs/copyright.html. + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ***************************************************************************/ + +/* This file is a reimplementation of the previous one, due to license + problems. */ + +#include "setup.h" + +#ifndef HAVE_GETPASS_R +/* this file is only for systems without getpass_r() */ + +#include <stdio.h> +#include <string.h> + +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif + +#include "getpass.h" + +#ifdef HAVE_FCNTL_H +#include <fcntl.h> +#endif +#ifdef HAVE_TERMIOS_H +#include <termios.h> +#else +#ifdef HAVE_TERMIO_H +#include <termio.h> +#endif +#endif + +/* The last #include file should be: */ +#if defined(CURLDEBUG) && defined(CURLTOOLDEBUG) +#include "memdebug.h" +#endif + +#ifdef __VMS +/* VMS implementation */ +#include descrip +#include starlet +#include iodef +/* #include iosbdef */ +char *getpass_r(const char *prompt, char *buffer, size_t buflen) +{ + long sts; + short chan; + + /* MSK, 23-JAN-2004, iosbdef.h wasn't in VAX V7.2 or CC 6.4 */ + /* distribution so I created this. May revert back later to */ + /* struct _iosb iosb; */ + struct _iosb + { + short int iosb$w_status; /* status */ + short int iosb$w_bcnt; /* byte count */ + int unused; /* unused */ + } iosb; + + $DESCRIPTOR(ttdesc, "TT"); + + buffer[0]='\0'; + sts = sys$assign(&ttdesc, &chan,0,0); + if (sts & 1) { + sts = sys$qiow(0, chan, + IO$_READPROMPT | IO$M_NOECHO, + &iosb, 0, 0, buffer, buflen, 0, 0, + prompt, strlen(prompt)); + + if((sts & 1) && (iosb.iosb$w_status&1)) + buffer[iosb.iosb$w_bcnt] = '\0'; + + sts = sys$dassgn(chan); + } + return buffer; /* we always return success */ +} +#define DONE +#endif /* __VMS */ + + +#ifdef WIN32 +/* Windows implementation */ +#include <conio.h> +#endif + +#ifdef __SYMBIAN32__ +#define getch() getchar() +#endif + +#if defined(WIN32) || defined(__SYMBIAN32__) + +char *getpass_r(const char *prompt, char *buffer, size_t buflen) +{ + size_t i; + fputs(prompt, stderr); + + for(i=0; i<buflen; i++) { + buffer[i] = (char)getch(); + if ( buffer[i] == '\r' || buffer[i] == '\n' ) { + buffer[i] = 0; + break; + } + else + if ( buffer[i] == '\b') + /* remove this letter and if this is not the first key, remove the + previous one as well */ + i = i - (i>=1?2:1); + } +#ifndef __SYMBIAN32__ + /* since echo is disabled, print a newline */ + fputs("\n", stderr); +#endif + /* if user didn't hit ENTER, terminate buffer */ + if (i==buflen) + buffer[buflen-1]=0; + + return buffer; /* we always return success */ +} +#define DONE +#endif /* WIN32 || __SYMBIAN32__ */ + +#ifdef NETWARE +/* NetWare implementation */ +#ifdef __NOVELL_LIBC__ +#include <screen.h> +char *getpass_r(const char *prompt, char *buffer, size_t buflen) +{ + return getpassword(prompt, buffer, buflen); +} +#else +#include <nwconio.h> +char *getpass_r(const char *prompt, char *buffer, size_t buflen) +{ + size_t i = 0; + + printf("%s", prompt); + do { + buffer[i++] = getch(); + if (buffer[i-1] == '\b') { + /* remove this letter and if this is not the first key, + remove the previous one as well */ + if (i > 1) { + printf("\b \b"); + i = i - 2; + } else { + RingTheBell(); + i = i - 1; + } + } else if (buffer[i-1] != 13) { + putchar('*'); + } + } while ((buffer[i-1] != 13) && (i < buflen)); + buffer[i-1] = 0; + printf("\r\n"); + return buffer; +} +#endif /* __NOVELL_LIBC__ */ +#define DONE +#endif /* NETWARE */ + +#ifndef DONE /* not previously provided */ + +#ifdef HAVE_TERMIOS_H +#define struct_term struct termios +#else +#ifdef HAVE_TERMIO_H +#define struct_term struct termio +#else +#undef struct_term +#endif +#endif + +static bool ttyecho(bool enable, int fd) +{ +#ifdef struct_term + static struct_term withecho; + static struct_term noecho; +#endif + if(!enable) { + /* disable echo by extracting the current 'withecho' mode and remove the + ECHO bit and set back the struct */ +#ifdef HAVE_TERMIOS_H + tcgetattr(fd, &withecho); + noecho = withecho; + noecho.c_lflag &= ~ECHO; + tcsetattr(fd, TCSANOW, &noecho); +#else /* HAVE_TERMIOS_H */ +#ifdef HAVE_TERMIO_H + ioctl(fd, TCGETA, &withecho); + noecho = withecho; + noecho.c_lflag &= ~ECHO; + ioctl(fd, TCSETA, &noecho); +#else /* HAVE_TERMIO_H */ +/* neither HAVE_TERMIO_H nor HAVE_TERMIOS_H, we can't disable echo! */ + (void)fd; /* prevent compiler warning on unused variable */ + return FALSE; /* not disabled */ +#endif +#endif + return TRUE; /* disabled */ + } + else { + /* re-enable echo, assumes we disabled it before (and set the structs we + now use to reset the terminal status) */ +#ifdef HAVE_TERMIOS_H + tcsetattr(fd, TCSAFLUSH, &withecho); +#else /* HAVE_TERMIOS_H */ +#ifdef HAVE_TERMIO_H + ioctl(fd, TCSETA, &withecho); +#else +/* neither HAVE_TERMIO_H nor HAVE_TERMIOS_H */ + return FALSE; /* not enabled */ +#endif +#endif + return TRUE; /* enabled */ + } +} + +char *getpass_r(const char *prompt, /* prompt to display */ + char *password, /* buffer to store password in */ + size_t buflen) /* size of buffer to store password in */ +{ + ssize_t nread; + bool disabled; + int fd=open("/dev/tty", O_RDONLY); + if(-1 == fd) + fd = 1; /* use stdin if the tty couldn't be used */ + + disabled = ttyecho(FALSE, fd); /* disable terminal echo */ + + fputs(prompt, stderr); + nread=read(fd, password, buflen); + if(nread > 0) + password[--nread]=0; /* zero terminate where enter is stored */ + else + password[0]=0; /* got nothing */ + + if(disabled) { + /* if echo actually was disabled, add a newline */ + fputs("\n", stderr); + (void)ttyecho(TRUE, fd); /* enable echo */ + } + + if(1 != fd) + close(fd); + + return password; /* return pointer to buffer */ +} + +#endif /* DONE */ +#endif /* HAVE_GETPASS_R */ |