--- a/ucx/properties.c Sat Apr 15 15:42:31 2023 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,264 +0,0 @@
-/*
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
- *
- * Copyright 2017 Mike Becker, Olaf Wintermann All rights reserved.
- *
- * 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.
- *
- * 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 HOLDER 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.
- */
-
-#include "ucx/properties.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-UcxProperties *ucx_properties_new() {
- UcxProperties *parser = (UcxProperties*)malloc(
- sizeof(UcxProperties));
- if(!parser) {
- return NULL;
- }
-
- parser->buffer = NULL;
- parser->buflen = 0;
- parser->pos = 0;
- parser->tmp = NULL;
- parser->tmplen = 0;
- parser->tmpcap = 0;
- parser->error = 0;
- parser->delimiter = '=';
- parser->comment1 = '#';
- parser->comment2 = 0;
- parser->comment3 = 0;
-
- return parser;
-}
-
-void ucx_properties_free(UcxProperties *parser) {
- if(parser->tmp) {
- free(parser->tmp);
- }
- free(parser);
-}
-
-void ucx_properties_fill(UcxProperties *parser, char *buf, size_t len) {
- parser->buffer = buf;
- parser->buflen = len;
- parser->pos = 0;
-}
-
-static void parser_tmp_append(UcxProperties *parser, char *buf, size_t len) {
- if(parser->tmpcap - parser->tmplen < len) {
- size_t newcap = parser->tmpcap + len + 64;
- parser->tmp = (char*)realloc(parser->tmp, newcap);
- parser->tmpcap = newcap;
- }
- memcpy(parser->tmp + parser->tmplen, buf, len);
- parser->tmplen += len;
-}
-
-int ucx_properties_next(UcxProperties *parser, sstr_t *name, sstr_t *value) {
- if(parser->tmplen > 0) {
- char *buf = parser->buffer + parser->pos;
- size_t len = parser->buflen - parser->pos;
- sstr_t str = sstrn(buf, len);
- sstr_t nl = sstrchr(str, '\n');
- if(nl.ptr) {
- size_t newlen = (size_t)(nl.ptr - buf) + 1;
- parser_tmp_append(parser, buf, newlen);
- // the tmp buffer contains exactly one line now
-
- char *orig_buf = parser->buffer;
- size_t orig_len = parser->buflen;
-
- parser->buffer = parser->tmp;
- parser->buflen = parser->tmplen;
- parser->pos = 0;
- parser->tmp = NULL;
- parser->tmpcap = 0;
- parser->tmplen = 0;
- // run ucx_properties_next with the tmp buffer as main buffer
- int ret = ucx_properties_next(parser, name, value);
-
- // restore original buffer
- parser->tmp = parser->buffer;
- parser->buffer = orig_buf;
- parser->buflen = orig_len;
- parser->pos = newlen;
-
- /*
- * if ret == 0 the tmp buffer contained just space or a comment
- * we parse again with the original buffer to get a name/value
- * or a new tmp buffer
- */
- return ret ? ret : ucx_properties_next(parser, name, value);
- } else {
- parser_tmp_append(parser, buf, len);
- return 0;
- }
- } else if(parser->tmp) {
- free(parser->tmp);
- parser->tmp = NULL;
- }
-
- char comment1 = parser->comment1;
- char comment2 = parser->comment2;
- char comment3 = parser->comment3;
- char delimiter = parser->delimiter;
-
- // get one line and parse it
- while(parser->pos < parser->buflen) {
- char *buf = parser->buffer + parser->pos;
- size_t len = parser->buflen - parser->pos;
-
- /*
- * First we check if we have at least one line. We also get indices of
- * delimiter and comment chars
- */
- size_t delimiter_index = 0;
- size_t comment_index = 0;
- int has_comment = 0;
-
- size_t i = 0;
- char c = 0;
- for(;i<len;i++) {
- c = buf[i];
- if(c == comment1 || c == comment2 || c == comment3) {
- if(comment_index == 0) {
- comment_index = i;
- has_comment = 1;
- }
- } else if(c == delimiter) {
- if(delimiter_index == 0 && !has_comment) {
- delimiter_index = i;
- }
- } else if(c == '\n') {
- break;
- }
- }
-
- if(c != '\n') {
- // we don't have enough data for a line
- // store remaining bytes in temporary buffer for next round
- parser->tmpcap = len + 128;
- parser->tmp = (char*)malloc(parser->tmpcap);
- parser->tmplen = len;
- memcpy(parser->tmp, buf, len);
- return 0;
- }
-
- sstr_t line = has_comment ? sstrn(buf, comment_index) : sstrn(buf, i);
- // check line
- if(delimiter_index == 0) {
- line = sstrtrim(line);
- if(line.length != 0) {
- parser->error = 1;
- }
- } else {
- sstr_t n = sstrn(buf, delimiter_index);
- sstr_t v = sstrn(
- buf + delimiter_index + 1,
- line.length - delimiter_index - 1);
- n = sstrtrim(n);
- v = sstrtrim(v);
- if(n.length != 0 || v.length != 0) {
- *name = n;
- *value = v;
- parser->pos += i + 1;
- return 1;
- } else {
- parser->error = 1;
- }
- }
-
- parser->pos += i + 1;
- }
-
- return 0;
-}
-
-int ucx_properties2map(UcxProperties *parser, UcxMap *map) {
- sstr_t name;
- sstr_t value;
- while(ucx_properties_next(parser, &name, &value)) {
- value = sstrdup_a(map->allocator, value);
- if(!value.ptr) {
- return 1;
- }
- if(ucx_map_sstr_put(map, name, value.ptr)) {
- alfree(map->allocator, value.ptr);
- return 1;
- }
- }
- if (parser->error) {
- return parser->error;
- } else {
- return 0;
- }
-}
-
-// buffer size is documented - change doc, when you change bufsize!
-#define UCX_PROPLOAD_BUFSIZE 1024
-int ucx_properties_load(UcxMap *map, FILE *file) {
- UcxProperties *parser = ucx_properties_new();
- if(!(parser && map && file)) {
- return 1;
- }
-
- int error = 0;
- size_t r;
- char buf[UCX_PROPLOAD_BUFSIZE];
- while((r = fread(buf, 1, UCX_PROPLOAD_BUFSIZE, file)) != 0) {
- ucx_properties_fill(parser, buf, r);
- error = ucx_properties2map(parser, map);
- if (error) {
- break;
- }
- }
- ucx_properties_free(parser);
- return error;
-}
-
-int ucx_properties_store(UcxMap *map, FILE *file) {
- UcxMapIterator iter = ucx_map_iterator(map);
- void *v;
- sstr_t value;
- size_t written;
-
- UCX_MAP_FOREACH(k, v, iter) {
- value = sstr((char*)v);
-
- written = 0;
- written += fwrite(k.data, 1, k.len, file);
- written += fwrite(" = ", 1, 3, file);
- written += fwrite(value.ptr, 1, value.length, file);
- written += fwrite("\n", 1, 1, file);
-
- if (written != k.len + value.length + 4) {
- return 1;
- }
- }
-
- return 0;
-}
-