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When casting from uid16/gid16 to uid/gid respectively, make sure

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that "no change" (ie 0xFFFF) is properly cast to (int)-1 for those
syscalls that set uids and/or gids.

Verified by: LTP
This commit is contained in:
Marcel Moolenaar 2001-10-14 03:56:53 +00:00
parent 7e605691b0
commit c640a5f5f2
1 changed files with 16 additions and 14 deletions
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30
sys/compat/linux/linux_uid16.c
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@ -42,6 +42,8 @@ DUMMY(setfsgid16);
DUMMY(getresuid16);
DUMMY(getresgid16);
#define CAST_NOCHG(x) (x == 0xFFFF) ? -1 : x;
int
linux_chown16(struct thread *td, struct linux_chown16_args *args)
{
@ -58,8 +60,8 @@ linux_chown16(struct thread *td, struct linux_chown16_args *args)
#endif
bsd.path = args->path;
bsd.uid = args->uid;
bsd.gid = args->gid;
bsd.uid = CAST_NOCHG(args->uid);
bsd.gid = CAST_NOCHG(args->gid);
return (chown(td, &bsd));
}
@ -79,8 +81,8 @@ linux_lchown16(struct thread *td, struct linux_lchown16_args *args)
#endif
bsd.path = args->path;
bsd.uid = args->uid;
bsd.gid = args->gid;
bsd.uid = CAST_NOCHG(args->uid);
bsd.gid = CAST_NOCHG(args->gid);
return (lchown(td, &bsd));
}
@ -249,8 +251,8 @@ linux_setregid16(struct thread *td, struct linux_setregid16_args *args)
{
struct setregid_args bsd;
bsd.rgid = args->rgid;
bsd.egid = args->egid;
bsd.rgid = CAST_NOCHG(args->rgid);
bsd.egid = CAST_NOCHG(args->egid);
return (setregid(td, &bsd));
}
@ -259,8 +261,8 @@ linux_setreuid16(struct thread *td, struct linux_setreuid16_args *args)
{
struct setreuid_args bsd;
bsd.ruid = args->ruid;
bsd.euid = args->euid;
bsd.ruid = CAST_NOCHG(args->ruid);
bsd.euid = CAST_NOCHG(args->euid);
return (setreuid(td, &bsd));
}
@ -269,9 +271,9 @@ linux_setresgid16(struct thread *td, struct linux_setresgid16_args *args)
{
struct setresgid_args bsd;
bsd.rgid = args->rgid;
bsd.egid = args->egid;
bsd.sgid = args->sgid;
bsd.rgid = CAST_NOCHG(args->rgid);
bsd.egid = CAST_NOCHG(args->egid);
bsd.sgid = CAST_NOCHG(args->sgid);
return (setresgid(td, &bsd));
}
@ -280,8 +282,8 @@ linux_setresuid16(struct thread *td, struct linux_setresuid16_args *args)
{
struct setresuid_args bsd;
bsd.ruid = args->ruid;
bsd.euid = args->euid;
bsd.suid = args->suid;
bsd.ruid = CAST_NOCHG(args->ruid);
bsd.euid = CAST_NOCHG(args->euid);
bsd.suid = CAST_NOCHG(args->suid);
return (setresuid(td, &bsd));
}