diff options
| -rw-r--r-- | include/sys/time.h | 4 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/lutimes.c | 38 |
2 files changed, 41 insertions, 1 deletions
diff --git a/include/sys/time.h b/include/sys/time.h index 33f5873ee..952e95a30 100644 --- a/include/sys/time.h +++ b/include/sys/time.h @@ -144,14 +144,16 @@ extern int utimes (__const char *__file, __const struct timeval __tvp[2]) __THROW __nonnull ((1)); libc_hidden_proto(utimes) -#if 0 /*def __USE_BSD*/ +#ifdef __USE_BSD /* Same as `utimes', but does not follow symbolic links. */ extern int lutimes (__const char *__file, __const struct timeval __tvp[2]) __THROW __nonnull ((1)); +#if 0 /* Same as `utimes', but takes an open file descriptor instead of a name. */ extern int futimes (int __fd, __const struct timeval __tvp[2]) __THROW; #endif +#endif #ifdef __USE_GNU /* Change the access time of FILE relative to FD to TVP[0] and the diff --git a/libc/sysdeps/linux/common/lutimes.c b/libc/sysdeps/linux/common/lutimes.c new file mode 100644 index 000000000..0b4a8ea45 --- /dev/null +++ b/libc/sysdeps/linux/common/lutimes.c @@ -0,0 +1,38 @@ +/* vi: set sw=4 ts=4: */ +/* + * lutimes() implementation for uClibc + * + * Copyright (C) 2010 Vladimir Zapolskiy <vzapolskiy@gmail.com> + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#include <sys/syscall.h> +#include <time.h> + +#ifdef __NR_lutimes +_syscall2(int, lutimes, const char *, file, const struct timeval *, tvp) +#else +#include <sys/time.h> +#include <fcntl.h> + +int lutimes(const char *file, const struct timeval tvp[2]) +{ + struct timespec ts[2]; + + if (tvp != NULL) + { + if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000 + || tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000) + { + __set_errno(EINVAL); + return -1; + } + + TIMEVAL_TO_TIMESPEC(&tvp[0], &ts[0]); + TIMEVAL_TO_TIMESPEC(&tvp[1], &ts[1]); + } + + return utimensat(AT_FDCWD, file, tvp ? ts : NULL, AT_SYMLINK_NOFOLLOW); +} +#endif |