937a200089
This is actually a fully functional build except: * All internal shared libraries are static linked to make sure there is no interference with ports (and to reduce build time). * It does not have the python/perl/etc plugin or API support. * By default, it installs as "svnlite" rather than "svn". * If WITH_SVN added in make.conf, you get "svn". * If WITHOUT_SVNLITE is in make.conf, this is completely disabled. To be absolutely clear, this is not intended for any use other than checking out freebsd source and committing, like we once did with cvs. It should be usable for small scale local repositories that don't need the python/perl plugin architecture.
255 lines
6.8 KiB
C
255 lines
6.8 KiB
C
/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* apr_password_get.c: abstraction to provide for obtaining a password from the
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* command line in whatever way the OS supports. In the best case, it's a
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* wrapper for the system library's getpass() routine; otherwise, we
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* use one we define ourselves.
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*/
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#include "apr_private.h"
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#include "apr_strings.h"
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#include "apr_lib.h"
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#include "apr_errno.h"
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#if APR_HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#if APR_HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#if APR_HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if APR_HAVE_CONIO_H
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#ifdef _MSC_VER
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#pragma warning(disable: 4032)
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#include <conio.h>
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#pragma warning(default: 4032)
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#else
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#include <conio.h>
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#endif
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#endif
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#if APR_HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#if APR_HAVE_STRING_H
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#include <string.h>
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#endif
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#if APR_HAVE_STRINGS_H
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#include <strings.h>
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#endif
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/* Disable getpass() support when PASS_MAX is defined and is "small",
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* for an arbitrary definition of "small".
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* HP-UX truncates passwords (PR49496) so we disable getpass() for
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* this platform too.
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*/
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#if defined(HAVE_GETPASS) && \
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(defined(PASS_MAX) && PASS_MAX < 32) || defined(__hpux) || defined(__hpux__)
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#undef HAVE_GETPASS
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#endif
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#if defined(HAVE_TERMIOS_H) && !defined(HAVE_GETPASS)
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#include <termios.h>
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#endif
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#if !APR_CHARSET_EBCDIC
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#define LF 10
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#define CR 13
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#else /* APR_CHARSET_EBCDIC */
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#define LF '\n'
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#define CR '\r'
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#endif /* APR_CHARSET_EBCDIC */
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#define MAX_STRING_LEN 256
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#define ERR_OVERFLOW 5
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#if !defined(HAVE_GETPASS) && !defined(HAVE_GETPASSPHRASE) && !defined(HAVE_GETPASS_R)
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/* MPE, Win32, NetWare and BeOS all lack a native getpass() */
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#if !defined(HAVE_TERMIOS_H) && !defined(WIN32) && !defined(NETWARE)
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/*
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* MPE lacks getpass() and a way to suppress stdin echo. So for now, just
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* issue the prompt and read the results with echo. (Ugh).
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*/
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static char *get_password(const char *prompt)
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{
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static char password[MAX_STRING_LEN];
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fputs(prompt, stderr);
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fgets((char *) &password, sizeof(password), stdin);
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return (char *) &password;
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}
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#elif defined (HAVE_TERMIOS_H)
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#include <stdio.h>
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static char *get_password(const char *prompt)
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{
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struct termios attr;
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static char password[MAX_STRING_LEN];
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int n=0;
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fputs(prompt, stderr);
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fflush(stderr);
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if (tcgetattr(STDIN_FILENO, &attr) != 0)
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return NULL;
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attr.c_lflag &= ~(ECHO);
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if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &attr) != 0)
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return NULL;
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while ((password[n] = getchar()) != '\n') {
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if (n < sizeof(password) - 1 && password[n] >= ' ' && password[n] <= '~') {
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n++;
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} else {
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fprintf(stderr,"\n");
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fputs(prompt, stderr);
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fflush(stderr);
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n = 0;
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}
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}
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password[n] = '\0';
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printf("\n");
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if (n > (MAX_STRING_LEN - 1)) {
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password[MAX_STRING_LEN - 1] = '\0';
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}
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attr.c_lflag |= ECHO;
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tcsetattr(STDIN_FILENO, TCSANOW, &attr);
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return (char*) &password;
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}
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#else
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/*
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* Windows lacks getpass(). So we'll re-implement it here.
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*/
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static char *get_password(const char *prompt)
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{
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/* WCE lacks console. So the getpass is unsuported
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* The only way is to use the GUI so the getpass should be implemented
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* on per-application basis.
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*/
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#ifdef _WIN32_WCE
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return NULL;
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#else
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static char password[128];
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int n = 0;
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int ch;
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fputs(prompt, stderr);
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while ((ch = _getch()) != '\r') {
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if (ch == EOF) /* EOF */ {
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fputs("[EOF]\n", stderr);
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return NULL;
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}
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else if (ch == 0 || ch == 0xE0) {
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/* FN Keys (0 or E0) are a sentinal for a FN code */
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ch = (ch << 4) | _getch();
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/* Catch {DELETE}, {<--}, Num{DEL} and Num{<--} */
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if ((ch == 0xE53 || ch == 0xE4B || ch == 0x053 || ch == 0x04b) && n) {
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password[--n] = '\0';
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fputs("\b \b", stderr);
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}
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else {
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fputc('\a', stderr);
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}
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}
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else if ((ch == '\b' || ch == 127) && n) /* BS/DEL */ {
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password[--n] = '\0';
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fputs("\b \b", stderr);
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}
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else if (ch == 3) /* CTRL+C */ {
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/* _getch() bypasses Ctrl+C but not Ctrl+Break detection! */
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fputs("^C\n", stderr);
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exit(-1);
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}
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else if (ch == 26) /* CTRL+Z */ {
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fputs("^Z\n", stderr);
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return NULL;
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}
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else if (ch == 27) /* ESC */ {
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fputc('\n', stderr);
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fputs(prompt, stderr);
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n = 0;
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}
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else if ((n < sizeof(password) - 1) && !apr_iscntrl(ch)) {
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password[n++] = ch;
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fputc('*', stderr);
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}
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else {
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fputc('\a', stderr);
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}
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}
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fputc('\n', stderr);
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password[n] = '\0';
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return password;
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#endif
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}
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#endif /* no getchar or _getch */
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#endif /* no getpass or getpassphrase or getpass_r */
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/*
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* Use the OS getpass() routine (or our own) to obtain a password from
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* the input stream.
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*
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* Exit values:
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* 0: Success
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* 5: Partial success; entered text truncated to the size of the
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* destination buffer
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*
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* Restrictions: Truncation also occurs according to the host system's
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* getpass() semantics, or at position 255 if our own version is used,
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* but the caller is *not* made aware of it unless their own buffer is
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* smaller than our own.
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*/
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APR_DECLARE(apr_status_t) apr_password_get(const char *prompt, char *pwbuf, apr_size_t *bufsiz)
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{
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apr_status_t rv = APR_SUCCESS;
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#if defined(HAVE_GETPASS_R)
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if (getpass_r(prompt, pwbuf, *bufsiz) == NULL)
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return APR_EINVAL;
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#else
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#if defined(HAVE_GETPASSPHRASE)
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char *pw_got = getpassphrase(prompt);
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#elif defined(HAVE_GETPASS)
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char *pw_got = getpass(prompt);
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#else /* use the replacement implementation above */
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char *pw_got = get_password(prompt);
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#endif
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if (!pw_got)
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return APR_EINVAL;
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if (strlen(pw_got) >= *bufsiz) {
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rv = APR_ENAMETOOLONG;
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}
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apr_cpystrn(pwbuf, pw_got, *bufsiz);
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memset(pw_got, 0, strlen(pw_got));
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#endif /* HAVE_GETPASS_R */
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return rv;
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}
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