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Fix linux_stat, linux_fstat & linux_lstat

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This commit is contained in:
EnderIce2 2024-04-01 03:19:48 +03:00
parent 84e5b2310e
commit 6f0a2b3f17
Signed by untrusted user who does not match committer: enderice2
GPG Key ID: EACC3AD603BAB4DD
1 changed files with 14 additions and 9 deletions
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23
syscalls/linux.cpp
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@ -499,8 +499,13 @@ static int linux_close(SysFrm *, int fd)
return fdt->_close(fd);
}
/* stat, lstat and fstat uses __old_kernel_stat:
https://github.com/torvalds/linux/blob/bfa8f18691ed2e978e4dd51190569c434f93e268/fs/stat.c#L353
if __ARCH_WANT_OLD_STAT is defined
so what about __old_kernel_stat? when it is used? */
/* https://man7.org/linux/man-pages/man2/stat.2.html */
static int linux_stat(SysFrm *, const char *pathname, struct __old_kernel_stat *statbuf)
static int linux_stat(SysFrm *, const char *pathname, struct k_stat *statbuf)
{
PCB *pcb = thisProcess;
vfs::FileDescriptorTable *fdt = pcb->FileDescriptors;
@ -514,14 +519,14 @@ static int linux_stat(SysFrm *, const char *pathname, struct __old_kernel_stat *
if (pStatbuf == nullptr)
return -EFAULT;
struct stat nstat = OKStatToStat(*pStatbuf);
struct stat nstat = KStatToStat(*pStatbuf);
int ret = fdt->_stat(pPathname, &nstat);
*pStatbuf = StatToOKStat(nstat);
*pStatbuf = StatToKStat(nstat);
return ret;
}
/* https://man7.org/linux/man-pages/man2/fstat.2.html */
static int linux_fstat(SysFrm *, int fd, struct __old_kernel_stat *statbuf)
static int linux_fstat(SysFrm *, int fd, struct k_stat *statbuf)
{
#undef fstat
PCB *pcb = thisProcess;
@ -532,14 +537,14 @@ static int linux_fstat(SysFrm *, int fd, struct __old_kernel_stat *statbuf)
if (pStatbuf == nullptr)
return -EFAULT;
struct stat nstat = OKStatToStat(*pStatbuf);
struct stat nstat = KStatToStat(*pStatbuf);
int ret = fdt->_fstat(fd, &nstat);
*pStatbuf = StatToOKStat(nstat);
*pStatbuf = StatToKStat(nstat);
return ret;
}
/* https://man7.org/linux/man-pages/man2/lstat.2.html */
static int linux_lstat(SysFrm *, const char *pathname, struct __old_kernel_stat *statbuf)
static int linux_lstat(SysFrm *, const char *pathname, struct k_stat *statbuf)
{
#undef lstat
PCB *pcb = thisProcess;
@ -551,9 +556,9 @@ static int linux_lstat(SysFrm *, const char *pathname, struct __old_kernel_stat
if (pPathname == nullptr || pStatbuf == nullptr)
return -EFAULT;
struct stat nstat = OKStatToStat(*pStatbuf);
struct stat nstat = KStatToStat(*pStatbuf);
int ret = fdt->_lstat(pPathname, &nstat);
*pStatbuf = StatToOKStat(nstat);
*pStatbuf = StatToKStat(nstat);
return ret;
}