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- /*
- The contents of this file are subject to the Mozilla Public License
- Version 1.1 (the "License"); you may not use this file except in
- compliance with the License. You may obtain a copy of the License at
- http://www.mozilla.org/MPL/
-
- Software distributed under the License is distributed on an "AS IS"
- basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
- License for the specific language governing rights and limitations
- under the License.
-
- The Original Code is expat.
-
- The Initial Developer of the Original Code is James Clark.
- Portions created by James Clark are Copyright (C) 1998, 1999
- James Clark. All Rights Reserved.
-
- Contributor(s):
-
- Alternatively, the contents of this file may be used under the terms
- of the GNU General Public License (the "GPL"), in which case the
- provisions of the GPL are applicable instead of those above. If you
- wish to allow use of your version of this file only under the terms of
- the GPL and not to allow others to use your version of this file under
- the MPL, indicate your decision by deleting the provisions above and
- replace them with the notice and other provisions required by the
- GPL. If you do not delete the provisions above, a recipient may use
- your version of this file under either the MPL or the GPL.
- */
-
- #include <sys/types.h>
- #include <sys/mman.h>
- #include <sys/stat.h>
- #include <fcntl.h>
- #include <errno.h>
- #include <string.h>
- #include <stdio.h>
-
- #ifndef MAP_FILE
- #define MAP_FILE 0
- #endif
-
- #include "filemap.h"
-
- int filemap(const char *name,
- void (*processor)(const void *, size_t, const char *, void *arg),
- void *arg)
- {
- int fd;
- size_t nbytes;
- struct stat sb;
- void *p;
-
- fd = open(name, O_RDONLY);
- if (fd < 0) {
- perror(name);
- return 0;
- }
- if (fstat(fd, &sb) < 0) {
- perror(name);
- close(fd);
- return 0;
- }
- if (!S_ISREG(sb.st_mode)) {
- close(fd);
- fprintf(stderr, "%s: not a regular file\n", name);
- return 0;
- }
-
- nbytes = sb.st_size;
- p = (void *)mmap((caddr_t)0, (size_t)nbytes, PROT_READ,
- MAP_FILE|MAP_PRIVATE, fd, (off_t)0);
- if (p == (void *)-1) {
- perror(name);
- close(fd);
- return 0;
- }
- processor(p, nbytes, name, arg);
- munmap((caddr_t)p, nbytes);
- close(fd);
- return 1;
- }
-