CMakeLua/Utilities/cmcurl-7.19.0/src/getpass.c

   1 /***************************************************************************
   2  *                                  _   _ ____  _
   3  *  Project                     ___| | | |  _ \| |
   4  *                             / __| | | | |_) | |
   5  *                            | (__| |_| |  _ <| |___
   6  *                             \___|\___/|_| \_\_____|
   7  *
   8  * Copyright (C) 1998 - 2005, Daniel Stenberg, <daniel@haxx.se>, et al.
   9  *
  10  * This software is licensed as described in the file COPYING, which
  11  * you should have received as part of this distribution. The terms
  12  * are also available at http://curl.haxx.se/docs/copyright.html.
  13  *
  14  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
  15  * copies of the Software, and permit persons to whom the Software is
  16  * furnished to do so, under the terms of the COPYING file.
  17  *
  18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  19  * KIND, either express or implied.
  20  *
  21  * $Id: getpass.c,v 1.1.1.1 2008-09-23 16:32:06 hoffman Exp $
  22  ***************************************************************************/
  23
  24 /* This file is a reimplementation of the previous one, due to license
  25    problems. */
  26
  27 #include "setup.h"
  28
  29 #ifndef HAVE_GETPASS_R
  30 /* this file is only for systems without getpass_r() */
  31
  32 #include <stdio.h>
  33 #include <string.h>
  34
  35 #ifdef HAVE_UNISTD_H
  36 #include <unistd.h>
  37 #endif
  38
  39 #include "getpass.h"
  40
  41 #ifdef HAVE_FCNTL_H
  42 #include <fcntl.h>
  43 #endif
  44 #ifdef HAVE_TERMIOS_H
  45 #include <termios.h>
  46 #else
  47 #ifdef HAVE_TERMIO_H
  48 #include <termio.h>
  49 #endif
  50 #endif
  51
  52 /* The last #include file should be: */
  53 #if defined(CURLDEBUG) && defined(CURLTOOLDEBUG)
  54 #include "memdebug.h"
  55 #endif
  56
  57 #ifdef VMS
  58 /* VMS implementation */
  59 #include descrip
  60 #include starlet
  61 #include iodef
  62 /* #include iosbdef */
  63 char *getpass_r(const char *prompt, char *buffer, size_t buflen)
  64 {
  65   long sts;
  66   short chan;
  67
  68   /* MSK, 23-JAN-2004, iosbdef.h wasn't in VAX V7.2 or CC 6.4  */
  69   /* distribution so I created this.  May revert back later to */
  70   /* struct _iosb iosb;                                        */
  71   struct _iosb
  72      {
  73      short int iosb$w_status; /* status     */
  74      short int iosb$w_bcnt;   /* byte count */
  75      int       unused;        /* unused     */
  76      } iosb;
  77
  78   $DESCRIPTOR(ttdesc, "TT");
  79
  80   buffer[0]='\0';
  81   sts = sys$assign(&ttdesc, &chan,0,0);
  82   if (sts & 1) {
  83     sts = sys$qiow(0, chan,
  84                    IO$_READPROMPT | IO$M_NOECHO,
  85                    &iosb, 0, 0, buffer, buflen, 0, 0,
  86                    prompt, strlen(prompt));
  87
  88     if((sts & 1) && (iosb.iosb$w_status&1))
  89       buffer[iosb.iosb$w_bcnt] = '\0';
  90
  91     sts = sys$dassgn(chan);
  92   }
  93   return buffer; /* we always return success */
  94 }
  95 #define DONE
  96 #endif /* VMS */
  97
  98
  99 #ifdef WIN32
 100 /* Windows implementation */
 101 #include <conio.h>
 102 #endif
 103
 104 #ifdef __SYMBIAN32__
 105 #define getch() getchar()
 106 #endif
 107
 108 #if defined(WIN32) || defined(__SYMBIAN32__)
 109
 110 char *getpass_r(const char *prompt, char *buffer, size_t buflen)
 111 {
 112   size_t i;
 113   fputs(prompt, stderr);
 114
 115   for(i=0; i<buflen; i++) {
 116     buffer[i] = getch();
 117     if ( buffer[i] == '\r' || buffer[i] == '\n' ) {
 118       buffer[i] = 0;
 119       break;
 120     }
 121     else
 122       if ( buffer[i] == '\b')
 123         /* remove this letter and if this is not the first key, remove the
 124            previous one as well */
 125         i = i - (i>=1?2:1);
 126   }
 127 #ifndef __SYMBIAN32__
 128   /* since echo is disabled, print a newline */
 129   fputs("\n", stderr);
 130 #endif
 131   /* if user didn't hit ENTER, terminate buffer */
 132   if (i==buflen)
 133     buffer[buflen-1]=0;
 134
 135   return buffer; /* we always return success */
 136 }
 137 #define DONE
 138 #endif /* WIN32 || __SYMBIAN32__ */
 139
 140 #ifdef NETWARE
 141 /* NetWare implementation */
 142 #ifdef __NOVELL_LIBC__
 143 #include <screen.h>
 144 char *getpass_r(const char *prompt, char *buffer, size_t buflen)
 145 {
 146   return getpassword(prompt, buffer, buflen);
 147 }
 148 #else
 149 #include <nwconio.h>
 150 char *getpass_r(const char *prompt, char *buffer, size_t buflen)
 151 {
 152   size_t i = 0;
 153
 154   printf("%s", prompt);
 155   do {
 156     buffer[i++] = getch();
 157     if (buffer[i-1] == '\b') {
 158       /* remove this letter and if this is not the first key,
 159          remove the previous one as well */
 160       if (i > 1) {
 161         printf("\b \b");
 162         i = i - 2;
 163       } else {
 164         RingTheBell();
 165         i = i - 1;
 166       }
 167     } else if (buffer[i-1] != 13) {
 168       putchar('*');
 169     }
 170   } while ((buffer[i-1] != 13) && (i < buflen));
 171   buffer[i-1] = 0;
 172   printf("\r\n");
 173   return buffer;
 174 }
 175 #endif /* __NOVELL_LIBC__ */
 176 #define DONE
 177 #endif /* NETWARE */
 178
 179 #ifndef DONE /* not previously provided */
 180
 181 #ifdef HAVE_TERMIOS_H
 182 #define struct_term struct termios
 183 #else
 184 #ifdef HAVE_TERMIO_H
 185 #define struct_term  struct termio
 186 #else
 187 #undef struct_term
 188 #endif
 189 #endif
 190
 191 static bool ttyecho(bool enable, int fd)
 192 {
 193 #ifdef struct_term
 194   static struct_term withecho;
 195   static struct_term noecho;
 196 #endif
 197   if(!enable) {
 198   /* disable echo by extracting the current 'withecho' mode and remove the
 199      ECHO bit and set back the struct */
 200 #ifdef HAVE_TERMIOS_H
 201     tcgetattr(fd, &withecho);
 202     noecho = withecho;
 203     noecho.c_lflag &= ~ECHO;
 204     tcsetattr(fd, TCSANOW, &noecho);
 205 #else /* HAVE_TERMIOS_H */
 206 #ifdef HAVE_TERMIO_H
 207     ioctl(fd, TCGETA, &withecho);
 208     noecho = withecho;
 209     noecho.c_lflag &= ~ECHO;
 210     ioctl(fd, TCSETA, &noecho);
 211 #else /* HAVE_TERMIO_H */
 212 /* neither HAVE_TERMIO_H nor HAVE_TERMIOS_H, we can't disable echo! */
 213     (void)fd; /* prevent compiler warning on unused variable */
 214     return FALSE; /* not disabled */
 215 #endif
 216 #endif
 217     return TRUE; /* disabled */
 218   }
 219   else {
 220     /* re-enable echo, assumes we disabled it before (and set the structs we
 221        now use to reset the terminal status) */
 222 #ifdef HAVE_TERMIOS_H
 223     tcsetattr(fd, TCSAFLUSH, &withecho);
 224 #else /* HAVE_TERMIOS_H */
 225 #ifdef HAVE_TERMIO_H
 226     ioctl(fd, TCSETA, &withecho);
 227 #else
 228 /* neither HAVE_TERMIO_H nor HAVE_TERMIOS_H */
 229     return FALSE; /* not enabled */
 230 #endif
 231 #endif
 232     return TRUE; /* enabled */
 233   }
 234 }
 235
 236 char *getpass_r(const char *prompt, /* prompt to display */
 237                 char *password,     /* buffer to store password in */
 238                 size_t buflen)      /* size of buffer to store password in */
 239 {
 240   ssize_t nread;
 241   bool disabled;
 242   int fd=open("/dev/tty", O_RDONLY);
 243   if(-1 == fd)
 244     fd = 1; /* use stdin if the tty couldn't be used */
 245
 246   disabled = ttyecho(FALSE, fd); /* disable terminal echo */
 247
 248   fputs(prompt, stderr);
 249   nread=read(fd, password, buflen);
 250   if(nread > 0)
 251     password[--nread]=0; /* zero terminate where enter is stored */
 252   else
 253     password[0]=0; /* got nothing */
 254
 255   if(disabled) {
 256     /* if echo actually was disabled, add a newline */
 257     fputs("\n", stderr);
 258     (void)ttyecho(TRUE, fd); /* enable echo */
 259   }
 260
 261   if(1 != fd)
 262     close(fd);
 263
 264   return password; /* return pointer to buffer */
 265 }
 266
 267 #endif /* DONE */
 268 #endif /* HAVE_GETPASS_R */