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author | Rich Felker <dalias@aerifal.cx> | 2019-07-18 15:16:20 -0400 |
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committer | Rich Felker <dalias@aerifal.cx> | 2019-07-18 19:36:23 -0400 |
commit | 9493892021eac4edf1776d945bcdd3f7a96f6978 (patch) | |
tree | 0eff8137858b35b3e282cff519bc93ea9b2d7625 /src/stat/fstat.c | |
parent | 62a73d9649d46dcd2f10043b3c963ee626130e1b (diff) | |
download | musl-9493892021eac4edf1776d945bcdd3f7a96f6978.tar.gz |
refactor all stat functions in terms of fstatat
equivalent logic for fstat+O_PATH fallback and direct use of
stat/lstat syscalls where appropriate is kept, now in the fstatat
function. this change both improves functionality (now, fstatat forms
equivalent to fstat/lstat/stat will work even on kernels too old to
have the at functions) and localizes direct interfacing with the
kernel stat structure to one file.
Diffstat (limited to 'src/stat/fstat.c')
-rw-r--r-- | src/stat/fstat.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/src/stat/fstat.c b/src/stat/fstat.c index 4f13f4f0..d2a828f3 100644 --- a/src/stat/fstat.c +++ b/src/stat/fstat.c @@ -1,3 +1,4 @@ +#define _BSD_SOURCE #include <sys/stat.h> #include <errno.h> #include <fcntl.h> @@ -5,17 +6,7 @@ int fstat(int fd, struct stat *st) { - int ret = __syscall(SYS_fstat, fd, st); - if (ret != -EBADF || __syscall(SYS_fcntl, fd, F_GETFD) < 0) - return __syscall_ret(ret); - - char buf[15+3*sizeof(int)]; - __procfdname(buf, fd); -#ifdef SYS_stat - return syscall(SYS_stat, buf, st); -#else - return syscall(SYS_fstatat, AT_FDCWD, buf, st, 0); -#endif + return fstatat(fd, "", st, AT_EMPTY_PATH); } weak_alias(fstat, fstat64); |