mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 08:35:26 +00:00
58 lines
1.1 KiB
C
58 lines
1.1 KiB
C
/*
|
|
Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
|
|
See the file copying.txt for copying permission.
|
|
*/
|
|
|
|
#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;
|
|
}
|