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Dont write to the stackgap directly in execve().

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This commit is contained in:
Peter Wemm 2003-11-07 21:27:13 +00:00
parent 5ed80e429e
commit 71d6084373
1 changed files with 9 additions and 3 deletions
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12
sys/compat/freebsd32/freebsd32_misc.c
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@ -398,7 +398,7 @@ freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap)
caddr_t sg;
struct execve_args ap;
u_int32_t *p32, arg;
char **p;
char **p, *p64;
int count;
sg = stackgap_init();
@ -421,7 +421,10 @@ freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap)
error = copyin(p32++, &arg, sizeof(arg));
if (error)
return error;
*p++ = PTRIN(arg);
p64 = PTRIN(arg);
error = copyout(&p64, p++, sizeof(p64));
if (error)
return error;
} while (arg != 0);
}
if (uap->envv) {
@ -440,7 +443,10 @@ freebsd32_execve(struct thread *td, struct freebsd32_execve_args *uap)
error = copyin(p32++, &arg, sizeof(arg));
if (error)
return error;
*p++ = PTRIN(arg);
p64 = PTRIN(arg);
error = copyout(&p64, p++, sizeof(p64));
if (error)
return error;
} while (arg != 0);
}