source:
EcnlProtoTool/trunk/musl-1.1.18/src/time/__map_file.c
Last change on this file was 444, checked in by , 4 years ago | |
---|---|
|
|
File size: 542 bytes |
Line | |
---|---|
1 | #include <sys/mman.h> |
2 | #include <fcntl.h> |
3 | #include <sys/stat.h> |
4 | #include "syscall.h" |
5 | |
6 | void *__mmap(void *, size_t, int, int, int, off_t); |
7 | |
8 | const char unsigned *__map_file(const char *pathname, size_t *size) |
9 | { |
10 | struct stat st; |
11 | const unsigned char *map = MAP_FAILED; |
12 | int fd = __sys_open(pathname, O_RDONLY|O_CLOEXEC|O_NONBLOCK); |
13 | if (fd < 0) return 0; |
14 | if (!__syscall(SYS_fstat, fd, &st)) { |
15 | map = __mmap(0, st.st_size, PROT_READ, MAP_SHARED, fd, 0); |
16 | *size = st.st_size; |
17 | } |
18 | __syscall(SYS_close, fd); |
19 | return map == MAP_FAILED ? 0 : map; |
20 | } |
Note:
See TracBrowser
for help on using the repository browser.