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newlib: drafted `utime` (to be moved in libposix)

This commit is contained in:
Giacomo Tesio 2019-11-19 00:24:34 +01:00
parent fb45d17c45
commit c1e16cbcd1
2 changed files with 31 additions and 1 deletions
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2
newlib/libc/sys/jehanne/libposix_conf.c
View File

@ -430,7 +430,7 @@ jehanne_fprint(2, "_fcntl_r(%d, %d, %d) from %#p\n", fd, cmd, arg, jehanne_getca
long sysconf(int name)
{
int *errnop = &_REENT->_errno;
PosixSysConfNames request = (PosixSysConfNames)name;
PosixSysConfNames request = 0;
switch(name){
case _SC_ARG_MAX:
request = PosixSCNArgMax;

30
newlib/libc/sys/jehanne/syscalls.c
View File

@ -23,6 +23,11 @@
typedef unsigned long clock_t;
typedef unsigned long useconds_t;
struct utimbuf {
long actime; /* access time */
long modtime; /* modification time */
};
extern void initialize_newlib(int argc, char *argv[]);
static void newlib(int argc, char *argv[]) __attribute__((noreturn));
@ -352,3 +357,28 @@ pwrite(int fd, const void *buf, size_t count, off_t offset)
int *errnop = &_REENT->_errno;
return POSIX_pwrite(errnop, fd, buf, count, offset);
}
int
utime(const char *filename, const struct utimbuf *times)
{
// TODO: move into libposix
extern int __libposix_get_errno(PosixError e);
Dir ndir;
int *errnop = &_REENT->_errno;
if(times == nil || filename == nil) {
*errnop = __libposix_get_errno(PosixEACCES);
return -1;
}
if(jehanne_access(filename, AEXIST) != 0){
*errnop = __libposix_get_errno(PosixENOENT);
return -1;
}
jehanne_nulldir(&ndir);
ndir.atime = times->actime;
ndir.mtime = times->modtime;
if(jehanne_dirwstat(filename, &ndir) == -1){
*errnop = __libposix_get_errno(PosixEPERM);
return -1;
}
return 0;
}