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don't omit setting errno in internal __map_file function

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a caller needs the reason for open (or fstat, albeit unlikely) failure
if it's going to make decisions about continuing a path search or
similar.
This commit is contained in:
Rich Felker 2018-10-22 21:37:50 -04:00
parent 5af1f5942b
commit 1b52863e24
1 changed files with 2 additions and 2 deletions
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4
src/time/__map_file.c
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@ -7,9 +7,9 @@ const char unsigned *__map_file(const char *pathname, size_t *size)
{
struct stat st;
const unsigned char *map = MAP_FAILED;
int fd = __sys_open(pathname, O_RDONLY|O_CLOEXEC|O_NONBLOCK);
int fd = sys_open(pathname, O_RDONLY|O_CLOEXEC|O_NONBLOCK);
if (fd < 0) return 0;
if (!__syscall(SYS_fstat, fd, &st)) {
if (!syscall(SYS_fstat, fd, &st)) {
map = __mmap(0, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
*size = st.st_size;
}