diff options
Diffstat (limited to 'contrib/openpam/lib/openpam_readline.c')
| -rw-r--r-- | contrib/openpam/lib/openpam_readline.c | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/contrib/openpam/lib/openpam_readline.c b/contrib/openpam/lib/openpam_readline.c deleted file mode 100644 index 17f03f3ae0fe..000000000000 --- a/contrib/openpam/lib/openpam_readline.c +++ /dev/null @@ -1,155 +0,0 @@ -/*- - * Copyright (c) 2003 Networks Associates Technology, Inc. - * Copyright (c) 2004-2007 Dag-Erling Smørgrav - * All rights reserved. - * - * This software was developed for the FreeBSD Project by ThinkSec AS and - * Network Associates Laboratories, the Security Research Division of - * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 - * ("CBOSS"), as part of the DARPA CHATS research program. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote - * products derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $Id: openpam_readline.c 408 2007-12-21 11:36:24Z des $ - */ - -#include <ctype.h> -#include <stdio.h> -#include <stdlib.h> - -#include <security/pam_appl.h> -#include "openpam_impl.h" - -#define MIN_LINE_LENGTH 128 - -/* - * OpenPAM extension - * - * Read a line from a file. - */ - -char * -openpam_readline(FILE *f, int *lineno, size_t *lenp) -{ - char *line; - size_t len, size; - int ch; - - if ((line = malloc(MIN_LINE_LENGTH)) == NULL) - return (NULL); - size = MIN_LINE_LENGTH; - len = 0; - -#define line_putch(ch) do { \ - if (len >= size - 1) { \ - char *tmp = realloc(line, size *= 2); \ - if (tmp == NULL) \ - goto fail; \ - line = tmp; \ - } \ - line[len++] = ch; \ - line[len] = '\0'; \ -} while (0) - - for (;;) { - ch = fgetc(f); - /* strip comment */ - if (ch == '#') { - do { - ch = fgetc(f); - } while (ch != EOF && ch != '\n'); - } - /* eof */ - if (ch == EOF) { - /* remove trailing whitespace */ - while (len > 0 && isspace((int)line[len - 1])) - --len; - line[len] = '\0'; - if (len == 0) - goto fail; - break; - } - /* eol */ - if (ch == '\n') { - if (lineno != NULL) - ++*lineno; - - /* remove trailing whitespace */ - while (len > 0 && isspace((int)line[len - 1])) - --len; - line[len] = '\0'; - /* skip blank lines */ - if (len == 0) - continue; - /* continuation */ - if (line[len - 1] == '\\') { - line[--len] = '\0'; - /* fall through to whitespace case */ - } else { - break; - } - } - /* whitespace */ - if (isspace(ch)) { - /* ignore leading whitespace */ - /* collapse linear whitespace */ - if (len > 0 && line[len - 1] != ' ') - line_putch(' '); - continue; - } - /* anything else */ - line_putch(ch); - } - - if (lenp != NULL) - *lenp = len; - return (line); - fail: - FREE(line); - return (NULL); -} - -/** - * The =openpam_readline function reads a line from a file, and returns it - * in a NUL-terminated buffer allocated with =malloc. - * - * The =openpam_readline function performs a certain amount of processing - * on the data it reads. - * Comments (introduced by a hash sign) are stripped, as is leading and - * trailing whitespace. - * Any amount of linear whitespace is collapsed to a single space. - * Blank lines are ignored. - * If a line ends in a backslash, the backslash is stripped and the next - * line is appended. - * - * If =lineno is not =NULL, the integer variable it points to is - * incremented every time a newline character is read. - * - * If =lenp is not =NULL, the length of the line (not including the - * terminating NUL character) is stored in the variable it points to. - * - * The caller is responsible for releasing the returned buffer by passing - * it to =free. - */ |