secpwd.c
上传用户:lyxiangda
上传日期:2007-01-12
资源大小:3042k
文件大小:4k
- /*
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is the Netscape security libraries.
- *
- * The Initial Developer of the Original Code is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1994-2000 Netscape Communications Corporation. All
- * Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL"), in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your
- * version of this file only under the terms of the GPL and not to
- * allow others to use your version of this file under the MPL,
- * indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient
- * may use your version of this file under either the MPL or the
- * GPL.
- */
- #include "secutil.h"
- /*
- * NOTE: The contents of this file are NOT used by the client.
- * (They are part of the security library as a whole, but they are
- * NOT USED BY THE CLIENT.) Do not change things on behalf of the
- * client (like localizing strings), or add things that are only
- * for the client (put them elsewhere).
- */
- #ifdef XP_UNIX
- #include <termios.h>
- #endif
- #ifdef _WINDOWS
- #include <conio.h>
- #define QUIET_FGETS quiet_fgets
- static int quiet_fgets (char *buf, int length, FILE *input);
- #else
- #define QUIET_FGETS fgets
- #endif
- static void echoOff(int fd)
- {
- #ifdef XP_UNIX
- if (isatty(fd)) {
- struct termios tio;
- tcgetattr(fd, &tio);
- tio.c_lflag &= ~ECHO;
- tcsetattr(fd, TCSAFLUSH, &tio);
- }
- #endif
- }
- static void echoOn(int fd)
- {
- #ifdef XP_UNIX
- if (isatty(fd)) {
- struct termios tio;
- tcgetattr(fd, &tio);
- tio.c_lflag |= ECHO;
- tcsetattr(fd, TCSAFLUSH, &tio);
- }
- #endif
- }
- char *SEC_GetPassword(FILE *input, FILE *output, char *prompt,
- PRBool (*ok)(char *))
- {
- char phrase[200];
- int infd = fileno(input);
- int isTTY = isatty(infd);
- for (;;) {
- /* Prompt for password */
- if (isTTY) {
- fprintf(output, "%s", prompt);
- fflush (output);
- echoOff(infd);
- }
- QUIET_FGETS ( phrase, sizeof(phrase), input);
- if (isTTY) {
- fprintf(output, "n");
- echoOn(infd);
- }
- /* stomp on newline */
- phrase[PORT_Strlen(phrase)-1] = 0;
- /* Validate password */
- if (!(*ok)(phrase)) {
- /* Not weird enough */
- if (!isTTY) return 0;
- fprintf(output, "Password must be at least 8 characters long with one or moren");
- fprintf(output, "non-alphabetic charactersn");
- continue;
- }
- return (char*) PORT_Strdup(phrase);
- }
- }
- PRBool SEC_CheckPassword(char *cp)
- {
- int len;
- char *end;
- len = PORT_Strlen(cp);
- if (len < 8) {
- return PR_FALSE;
- }
- end = cp + len;
- while (cp < end) {
- unsigned char ch = *cp++;
- if (!((ch >= 'A') && (ch <= 'Z')) &&
- !((ch >= 'a') && (ch <= 'z'))) {
- /* pass phrase has at least one non alphabetic in it */
- return PR_TRUE;
- }
- }
- return PR_FALSE;
- }
- PRBool SEC_BlindCheckPassword(char *cp)
- {
- if (cp != NULL) {
- return PR_TRUE;
- }
- return PR_FALSE;
- }
- /* Get a password from the input terminal, without echoing */
- #ifdef _WINDOWS
- static int quiet_fgets (char *buf, int length, FILE *input)
- {
- int c;
- char *end = buf;
- /* fflush (input); */
- memset (buf, 0, length);
- if (input != stdin) {
- return fgets(buf,length,input);
- }
- while (1)
- {
- c = getch();
- if (c == 'b')
- {
- if (end > buf)
- end--;
- }
- else if (--length > 0)
- *end++ = c;
- if (!c || c == 'n' || c == 'r')
- break;
- }
- return 0;
- }
- #endif