diff options
author | Stef Walter <stefw@redhat.com> | 2016-11-29 13:30:55 +0100 |
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committer | Stef Walter <stefw@redhat.com> | 2016-11-29 13:32:23 +0100 |
commit | 561ee23f218c7a68a2ef46525502f978e56fc1bb (patch) | |
tree | 8deb8569f109a0e9dea11736f56ad5e47f42dc11 /common/lexer.c | |
parent | a96f354c3068edb6c8ac80ae6d9a6611651145d7 (diff) | |
download | p11-kit-master.tar.gz |
This repository has moved to GitHub to allow further contributions
and more flexibility who can merge changes.
More details here:
https://lists.freedesktop.org/archives/p11-glue/2016-November/000626.html
Diffstat (limited to 'common/lexer.c')
-rw-r--r-- | common/lexer.c | 239 |
1 files changed, 0 insertions, 239 deletions
diff --git a/common/lexer.c b/common/lexer.c deleted file mode 100644 index 6253492..0000000 --- a/common/lexer.c +++ /dev/null @@ -1,239 +0,0 @@ -/* - * Copyright (c) 2005 Stefan Walter - * Copyright (c) 2011 Collabora Ltd. - * Copyright (c) 2013 Red Hat Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above - * copyright notice, this list of conditions and the - * following disclaimer. - * * 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. - * * The names of contributors to this software may not be - * used to endorse or promote products derived from this - * software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 - * COPYRIGHT OWNER 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. - * - * - * CONTRIBUTORS - * Stef Walter <stefw@redhat.com> - */ - -#include "config.h" - -#define P11_DEBUG_FLAG P11_DEBUG_CONF -#include "debug.h" -#include "lexer.h" -#include "message.h" - -#include <assert.h> -#include <ctype.h> -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -void -p11_lexer_init (p11_lexer *lexer, - const char *filename, - const char *data, - size_t length) -{ - return_if_fail (lexer != NULL); - - memset (lexer, 0, sizeof (p11_lexer)); - lexer->at = data; - lexer->remaining = length; - - return_if_fail (filename != NULL); - lexer->filename = strdup (filename); - return_if_fail (lexer->filename != NULL); -} - -static void -clear_state (p11_lexer *lexer) -{ - switch (lexer->tok_type) { - case TOK_FIELD: - free (lexer->tok.field.name); - free (lexer->tok.field.value); - break; - case TOK_SECTION: - free (lexer->tok.section.name); - break; - case TOK_PEM: - case TOK_EOF: - break; - } - - memset (&lexer->tok, 0, sizeof (lexer->tok)); - lexer->tok_type = TOK_EOF; - lexer->complained = false; -} - -bool -p11_lexer_next (p11_lexer *lexer, - bool *failed) -{ - const char *colon; - const char *value; - const char *line; - const char *end; - const char *pos; - char *part; - - return_val_if_fail (lexer != NULL, false); - - clear_state (lexer); - if (failed) - *failed = false; - - /* Go through lines and process them */ - while (lexer->remaining != 0) { - assert (lexer->remaining > 0); - - /* Is this line the start of a PEM block? */ - if (strncmp (lexer->at, "-----BEGIN ", 11) == 0) { - pos = strnstr (lexer->at, "\n-----END ", lexer->remaining); - if (pos != NULL) { - end = memchr (pos + 1, '\n', lexer->remaining - (pos - lexer->at) - 1); - if (end) - end += 1; - else - end = lexer->at + lexer->remaining; - lexer->tok_type = TOK_PEM; - lexer->tok.pem.begin = lexer->at; - lexer->tok.pem.length = end - lexer->at; - assert (end - lexer->at <= lexer->remaining); - lexer->remaining -= (end - lexer->at); - lexer->at = end; - return true; - } - - p11_lexer_msg (lexer, "invalid pem block: no ending line"); - if (failed) - *failed = true; - return false; - } - - line = lexer->at; - end = memchr (lexer->at, '\n', lexer->remaining); - if (end == NULL) { - end = lexer->at + lexer->remaining; - lexer->remaining = 0; - lexer->at = end; - } else { - assert ((end - lexer->at) + 1 <= lexer->remaining); - lexer->remaining -= (end - lexer->at) + 1; - lexer->at = end + 1; - } - - /* Strip whitespace from line */ - while (line != end && isspace (line[0])) - ++line; - while (line != end && isspace (*(end - 1))) - --end; - - /* Empty lines / comments at start */ - if (line == end || line[0] == '#') - continue; - - /* Is the the a section ? */ - if (line[0] == '[') { - if (*(end - 1) != ']') { - part = strndup (line, end - line); - p11_lexer_msg (lexer, "invalid section header: missing braces"); - free (part); - if (failed) - *failed = true; - return false; - } - - lexer->tok_type = TOK_SECTION; - lexer->tok.section.name = strndup (line + 1, (end - line) - 2); - return_val_if_fail (lexer->tok.section.name != NULL, false); - return true; - } - - /* Look for the break between name: value on the same line */ - colon = memchr (line, ':', end - line); - if (!colon) { - part = strndup (line, end - line); - p11_lexer_msg (lexer, "invalid field line: no colon"); - free (part); - if (failed) - *failed = true; - return false; - } - - /* Strip whitespace from name and value */ - value = colon + 1; - while (value != end && isspace (value[0])) - ++value; - while (line != colon && isspace (*(colon - 1))) - --colon; - - lexer->tok_type = TOK_FIELD; - lexer->tok.field.name = strndup (line, colon - line); - lexer->tok.field.value = strndup (value, end - value); - return_val_if_fail (lexer->tok.field.name && lexer->tok.field.value, false); - return true; - } - - return false; -} - -void -p11_lexer_done (p11_lexer *lexer) -{ - return_if_fail (lexer != NULL); - clear_state (lexer); - free (lexer->filename); - memset (lexer, 0, sizeof (p11_lexer)); -} - -void -p11_lexer_msg (p11_lexer *lexer, - const char *msg) -{ - return_if_fail (lexer != NULL); - - if (lexer->complained) - return; - - switch (lexer->tok_type) { - case TOK_FIELD: - p11_message ("%s: %s: %s", lexer->filename, - lexer->tok.field.name, msg); - break; - case TOK_SECTION: - p11_message ("%s: [%s]: %s", lexer->filename, - lexer->tok.section.name, msg); - break; - case TOK_PEM: - p11_message ("%s: BEGIN ...: %s", lexer->filename, msg); - break; - default: - p11_message ("%s: %s", lexer->filename, msg); - break; - } - - lexer->complained = true; -} |