| /* |
| __ __ _ |
| ___\ \/ /_ __ __ _| |_ |
| / _ \\ /| '_ \ / _` | __| |
| | __// \| |_) | (_| | |_ |
| \___/_/\_\ .__/ \__,_|\__| |
| |_| XML parser |
| |
| Copyright (c) 1997-2000 Thai Open Source Software Center Ltd |
| Copyright (c) 2000-2017 Expat development team |
| Licensed under the MIT license: |
| |
| Permission is hereby granted, free of charge, to any person obtaining |
| a copy of this software and associated documentation files (the |
| "Software"), to deal in the Software without restriction, including |
| without limitation the rights to use, copy, modify, merge, publish, |
| distribute, sublicense, and/or sell copies of the Software, and to permit |
| persons to whom the Software is furnished to do so, subject to the |
| following conditions: |
| |
| The above copyright notice and this permission notice shall be included |
| in all copies or substantial portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN |
| NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
| DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| |
| /* Functions close(2) and read(2) */ |
| #if !defined(_WIN32) && !defined(_WIN64) |
| # include <unistd.h> |
| #endif |
| |
| /* Function "read": */ |
| #if defined(_MSC_VER) |
| # include <io.h> |
| /* https://msdn.microsoft.com/en-us/library/wyssk1bs(v=vs.100).aspx */ |
| # define _EXPAT_read _read |
| # define _EXPAT_read_count_t int |
| # define _EXPAT_read_req_t unsigned int |
| #else /* POSIX */ |
| /* http://pubs.opengroup.org/onlinepubs/009695399/functions/read.html */ |
| # define _EXPAT_read read |
| # define _EXPAT_read_count_t ssize_t |
| # define _EXPAT_read_req_t size_t |
| #endif |
| |
| #ifndef S_ISREG |
| # ifndef S_IFREG |
| # define S_IFREG _S_IFREG |
| # endif |
| # ifndef S_IFMT |
| # define S_IFMT _S_IFMT |
| # endif |
| # define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) |
| #endif /* not S_ISREG */ |
| |
| #ifndef O_BINARY |
| # ifdef _O_BINARY |
| # define O_BINARY _O_BINARY |
| # else |
| # define O_BINARY 0 |
| # endif |
| #endif |
| |
| #include "xmltchar.h" |
| #include "filemap.h" |
| |
| int |
| filemap(const tchar *name, |
| void (*processor)(const void *, size_t, const tchar *, void *arg), |
| void *arg) |
| { |
| size_t nbytes; |
| int fd; |
| _EXPAT_read_count_t n; |
| struct stat sb; |
| void *p; |
| |
| fd = topen(name, O_RDONLY|O_BINARY); |
| if (fd < 0) { |
| tperror(name); |
| return 0; |
| } |
| if (fstat(fd, &sb) < 0) { |
| tperror(name); |
| close(fd); |
| return 0; |
| } |
| if (!S_ISREG(sb.st_mode)) { |
| ftprintf(stderr, T("%s: not a regular file\n"), name); |
| close(fd); |
| return 0; |
| } |
| if (sb.st_size > XML_MAX_CHUNK_LEN) { |
| close(fd); |
| return 2; /* Cannot be passed to XML_Parse in one go */ |
| } |
| |
| nbytes = sb.st_size; |
| /* malloc will return NULL with nbytes == 0, handle files with size 0 */ |
| if (nbytes == 0) { |
| static const char c = '\0'; |
| processor(&c, 0, name, arg); |
| close(fd); |
| return 1; |
| } |
| p = malloc(nbytes); |
| if (!p) { |
| ftprintf(stderr, T("%s: out of memory\n"), name); |
| close(fd); |
| return 0; |
| } |
| n = _EXPAT_read(fd, p, (_EXPAT_read_req_t)nbytes); |
| if (n < 0) { |
| tperror(name); |
| free(p); |
| close(fd); |
| return 0; |
| } |
| if (n != (_EXPAT_read_count_t)nbytes) { |
| ftprintf(stderr, T("%s: read unexpected number of bytes\n"), name); |
| free(p); |
| close(fd); |
| return 0; |
| } |
| processor(p, nbytes, name, arg); |
| free(p); |
| close(fd); |
| return 1; |
| } |