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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#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>
#include <unistd.h> /* for isatty() */
#endif
#if defined(_WINDOWS)
#include <conio.h>
#include <io.h>
#define QUIET_FGETS quiet_fgets
static char *quiet_fgets(char *buf, int length, FILE *input);
#else
#define QUIET_FGETS fgets
#endif
#if !defined(_WINDOWS)
static void
echoOff(int fd)
{
if (isatty(fd)) {
struct termios tio;
tcgetattr(fd, &tio);
tio.c_lflag &= ~ECHO;
tcsetattr(fd, TCSAFLUSH, &tio);
}
}
static void
echoOn(int fd)
{
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 *))
{
#if defined(_WINDOWS)
int isTTY = (input == stdin);
#define echoOn(x)
#define echoOff(x)
#else
int infd = fileno(input);
int isTTY = isatty(infd);
#endif
char phrase[500] = { '\0' }; /* ensure EOF doesn't return junk */
for (;;) {
/* Prompt for password */
if (isTTY) {
fprintf(output, "%s", prompt);
fflush(output);
echoOff(infd);
}
if (QUIET_FGETS(phrase, sizeof(phrase), input) == NULL) {
return NULL;
}
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 NULL;
fprintf(output, "Password must be at least 8 characters long with one or more\n");
fprintf(output, "non-alphabetic characters\n");
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 */
#if defined(_WINDOWS)
static char *
quiet_fgets(char *buf, int length, FILE *input)
{
int c;
char *end = buf;
/* fflush (input); */
memset(buf, 0, length);
if (!isatty(fileno(input))) {
return fgets(buf, length, input);
}
while (1) {
c = getch(); /* getch gets a character from the console */
if (c == '\b') {
if (end > buf)
end--;
}
else if (--length > 0)
*end++ = c;
if (!c || c == '\n' || c == '\r')
break;
}
return buf;
}
#endif
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