minix/lib/libc/sys-minix/utimes.c
David van Moolenbroek 24ec0d73b5 Clean up interface to PM and VFS
- introduce new call numbers, names, and field aliases;
- initialize request messages to zero for all ABI calls;
- format callnr.h in the same way as com.h;
- redo call tables in both servers;
- remove param.h namespace pollution in the servers;
- make brk(2) go to VM directly, rather than through PM;
- remove obsolete BRK, UTIME, and WAIT calls;
- clean up path copying routine in VFS;
- move remaining system calls from libminlib to libc;
- correct some errno-related mistakes in libc routines.

Change-Id: I2d8ec5d061cd7e0b30c51ffd77aa72ebf84e2565
2014-03-01 09:05:01 +01:00

42 lines
922 B
C

#include <sys/cdefs.h>
#include "namespace.h"
#include <lib.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <string.h>
#include <errno.h>
#ifdef __weak_alias
__weak_alias(utimes, __utimes50)
#endif
int utimes(const char *name, const struct timeval tv[2])
{
message m;
if (name == NULL) {
errno = EINVAL;
return -1;
}
if (name[0] == '\0') { /* X/Open requirement */
errno = ENOENT;
return -1;
}
memset(&m, 0, sizeof(m));
m.VFS_UTIMENS_LEN = strlen(name) + 1;
m.VFS_UTIMENS_NAME = (char *) __UNCONST(name);
if (tv == NULL) {
m.VFS_UTIMENS_ATIME = m.VFS_UTIMENS_MTIME = 0;
m.VFS_UTIMENS_ANSEC = m.VFS_UTIMENS_MNSEC = UTIME_NOW;
}
else {
m.VFS_UTIMENS_ATIME = tv[0].tv_sec;
m.VFS_UTIMENS_MTIME = tv[1].tv_sec;
m.VFS_UTIMENS_ANSEC = tv[0].tv_usec * 1000;
m.VFS_UTIMENS_MNSEC = tv[1].tv_usec * 1000;
}
m.VFS_UTIMENS_FLAGS = 0;
return(_syscall(VFS_PROC_NR, VFS_UTIMENS, &m));
}