mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-01 14:45:29 +00:00
100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
/*
|
|
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/stat.h>
|
|
#include <fcntl.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
|
|
#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
|
|
|
|
int filemap(const char *name,
|
|
void (*processor)(const void *, size_t, const char *, void *arg),
|
|
void *arg)
|
|
{
|
|
size_t nbytes;
|
|
int fd;
|
|
int n;
|
|
struct stat sb;
|
|
void *p;
|
|
|
|
fd = open(name, O_RDONLY|O_BINARY);
|
|
if (fd < 0) {
|
|
perror(name);
|
|
return 0;
|
|
}
|
|
if (fstat(fd, &sb) < 0) {
|
|
perror(name);
|
|
return 0;
|
|
}
|
|
if (!S_ISREG(sb.st_mode)) {
|
|
fprintf(stderr, "%s: not a regular file\n", name);
|
|
return 0;
|
|
}
|
|
nbytes = sb.st_size;
|
|
p = malloc(nbytes);
|
|
if (!p) {
|
|
fprintf(stderr, "%s: out of memory\n", name);
|
|
return 0;
|
|
}
|
|
n = read(fd, p, nbytes);
|
|
if (n < 0) {
|
|
perror(name);
|
|
close(fd);
|
|
return 0;
|
|
}
|
|
if (n != nbytes) {
|
|
fprintf(stderr, "%s: read unexpected number of bytes\n", name);
|
|
close(fd);
|
|
return 0;
|
|
}
|
|
processor(p, nbytes, name, arg);
|
|
free(p);
|
|
close(fd);
|
|
return 1;
|
|
}
|