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* cygwin.din: Export setreuid32, setreuid, setregid32, setregid.

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* syscalls.cc (setreuid32): New function.
	(setreuid): Ditto.
	(setregid32): Ditto.
	(setregid): Ditto.
	* include/cygwin/version.h: Bump API minor number.
This commit is contained in:
Corinna Vinschen
2003-01-24 15:23:15 +00:00
parent ac4133746e
commit 7d33eefa7b
4 changed files with 68 additions and 1 deletions
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50
winsup/cygwin/syscalls.cc
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@@ -2131,6 +2131,31 @@ setuid (__uid16_t uid)
return setuid32 (uid16touid32 (uid));
}
extern "C" int
setreuid32 (__uid32_t ruid, __uid32_t euid)
{
int ret = 0;
bool tried = false;
__uid32_t old_euid = myself->uid;
if (ruid != ILLEGAL_UID && cygheap->user.real_uid != ruid && euid != ruid)
tried = !(ret = seteuid32 (ruid));
if (!ret && euid != ILLEGAL_UID)
ret = seteuid32 (euid);
if (tried && (ret || euid == ILLEGAL_UID) && seteuid32 (old_euid))
system_printf ("Cannot restore original euid %u", old_euid);
if (!ret && ruid != ILLEGAL_UID)
cygheap->user.real_uid = ruid;
debug_printf ("real: %u, effective: %u", cygheap->user.real_uid, myself->uid);
return ret;
}
extern "C" int
setreuid (__uid16_t ruid, __uid16_t euid)
{
return setreuid32 (uid16touid32 (ruid), uid16touid32 (euid));
}
/* setegid: from System V. */
extern "C" int
setegid32 (__gid32_t gid)
@@ -2209,6 +2234,31 @@ setgid (__gid16_t gid)
return ret;
}
extern "C" int
setregid32 (__gid32_t rgid, __gid32_t egid)
{
int ret = 0;
bool tried = false;
__gid32_t old_egid = myself->gid;
if (rgid != ILLEGAL_GID && cygheap->user.real_gid != rgid && egid != rgid)
tried = !(ret = setegid32 (rgid));
if (!ret && egid != ILLEGAL_GID)
ret = setegid32 (egid);
if (tried && (ret || egid == ILLEGAL_GID) && setegid32 (old_egid))
system_printf ("Cannot restore original egid %u", old_egid);
if (!ret && rgid != ILLEGAL_GID)
cygheap->user.real_gid = rgid;
debug_printf ("real: %u, effective: %u", cygheap->user.real_gid, myself->gid);
return ret;
}
extern "C" int
setregid (__gid16_t rgid, __gid16_t egid)
{
return setregid32 (gid16togid32 (rgid), gid16togid32 (egid));
}
/* chroot: privileged Unix system call. */
/* FIXME: Not privileged here. How should this be done? */
extern "C" int