bonic: libc: cpuacct support for setuid functions
Any of the setuid functions now updates /acct/uid/ with its own tid
before changing users. This is so we can properly account for cpu time
per uid.
Change-Id: I34186cf4d5228cac8439e582a9e26c01ef3011e4
Signed-off-by: Mike Chan <mike@android.com>
diff --git a/libc/Android.mk b/libc/Android.mk
index e820b60..97f4011 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -47,7 +47,10 @@
unistd/sbrk.c \
unistd/send.c \
unistd/setegid.c \
+ unistd/setuid.c \
unistd/seteuid.c \
+ unistd/setreuid.c \
+ unistd/setresuid.c \
unistd/setpgrp.c \
unistd/sigblock.c \
unistd/siginterrupt.c \
@@ -219,6 +222,7 @@
bionic/__errno.c \
bionic/__set_errno.c \
bionic/_rand48.c \
+ bionic/cpuacct.c \
bionic/arc4random.c \
bionic/basename.c \
bionic/basename_r.c \
diff --git a/libc/SYSCALLS.TXT b/libc/SYSCALLS.TXT
index ca48cfb..8c664d7 100644
--- a/libc/SYSCALLS.TXT
+++ b/libc/SYSCALLS.TXT
@@ -42,7 +42,7 @@
int execve (const char*, char* const*, char* const*) 11
-int setuid:setuid32 (uid_t) 213
+int __setuid:setuid32 (uid_t) 213
uid_t getuid:getuid32 () 199
gid_t getgid:getgid32 () 200
uid_t geteuid:geteuid32 () 201
@@ -56,8 +56,8 @@
pid_t setsid() 66
int setgid:setgid32(gid_t) 214
int seteuid:seteuid32(uid_t) stub
-int setreuid:setreuid32(uid_t, uid_t) 203
-int setresuid:setresuid32(uid_t, uid_t, uid_t) 208
+int __setreuid:setreuid32(uid_t, uid_t) 203
+int __setresuid:setresuid32(uid_t, uid_t, uid_t) 208
int setresgid:setresgid32(gid_t, gid_t, gid_t) 210
void* __brk:brk(void*) 45
# see comments in arch-arm/bionic/kill.S to understand why we don't generate an ARM stub for kill/tkill
diff --git a/libc/arch-arm/syscalls.mk b/libc/arch-arm/syscalls.mk
index 3020930..4a8caac 100644
--- a/libc/arch-arm/syscalls.mk
+++ b/libc/arch-arm/syscalls.mk
@@ -6,7 +6,7 @@
syscall_src += arch-arm/syscalls/waitid.S
syscall_src += arch-arm/syscalls/__sys_clone.S
syscall_src += arch-arm/syscalls/execve.S
-syscall_src += arch-arm/syscalls/setuid.S
+syscall_src += arch-arm/syscalls/__setuid.S
syscall_src += arch-arm/syscalls/getuid.S
syscall_src += arch-arm/syscalls/getgid.S
syscall_src += arch-arm/syscalls/geteuid.S
@@ -19,8 +19,8 @@
syscall_src += arch-arm/syscalls/getppid.S
syscall_src += arch-arm/syscalls/setsid.S
syscall_src += arch-arm/syscalls/setgid.S
-syscall_src += arch-arm/syscalls/setreuid.S
-syscall_src += arch-arm/syscalls/setresuid.S
+syscall_src += arch-arm/syscalls/__setreuid.S
+syscall_src += arch-arm/syscalls/__setresuid.S
syscall_src += arch-arm/syscalls/setresgid.S
syscall_src += arch-arm/syscalls/__brk.S
syscall_src += arch-arm/syscalls/__ptrace.S
diff --git a/libc/arch-arm/syscalls/setresuid.S b/libc/arch-arm/syscalls/__setresuid.S
similarity index 81%
rename from libc/arch-arm/syscalls/setresuid.S
rename to libc/arch-arm/syscalls/__setresuid.S
index 266c1a1..7710772 100644
--- a/libc/arch-arm/syscalls/setresuid.S
+++ b/libc/arch-arm/syscalls/__setresuid.S
@@ -2,12 +2,12 @@
#include <sys/linux-syscalls.h>
.text
- .type setresuid, #function
- .globl setresuid
+ .type __setresuid, #function
+ .globl __setresuid
.align 4
.fnstart
-setresuid:
+__setresuid:
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_setresuid32
diff --git a/libc/arch-arm/syscalls/setreuid.S b/libc/arch-arm/syscalls/__setreuid.S
similarity index 82%
rename from libc/arch-arm/syscalls/setreuid.S
rename to libc/arch-arm/syscalls/__setreuid.S
index 0f94b47..0c68866 100644
--- a/libc/arch-arm/syscalls/setreuid.S
+++ b/libc/arch-arm/syscalls/__setreuid.S
@@ -2,12 +2,12 @@
#include <sys/linux-syscalls.h>
.text
- .type setreuid, #function
- .globl setreuid
+ .type __setreuid, #function
+ .globl __setreuid
.align 4
.fnstart
-setreuid:
+__setreuid:
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_setreuid32
diff --git a/libc/arch-arm/syscalls/setuid.S b/libc/arch-arm/syscalls/__setuid.S
similarity index 83%
rename from libc/arch-arm/syscalls/setuid.S
rename to libc/arch-arm/syscalls/__setuid.S
index 31cf446..efc6e56 100644
--- a/libc/arch-arm/syscalls/setuid.S
+++ b/libc/arch-arm/syscalls/__setuid.S
@@ -2,12 +2,12 @@
#include <sys/linux-syscalls.h>
.text
- .type setuid, #function
- .globl setuid
+ .type __setuid, #function
+ .globl __setuid
.align 4
.fnstart
-setuid:
+__setuid:
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_setuid32
diff --git a/libc/arch-sh/syscalls.mk b/libc/arch-sh/syscalls.mk
index c848954..ab2f3d1 100644
--- a/libc/arch-sh/syscalls.mk
+++ b/libc/arch-sh/syscalls.mk
@@ -7,7 +7,7 @@
syscall_src += arch-sh/syscalls/waitid.S
syscall_src += arch-sh/syscalls/__sys_clone.S
syscall_src += arch-sh/syscalls/execve.S
-syscall_src += arch-sh/syscalls/setuid.S
+syscall_src += arch-sh/syscalls/__setuid.S
syscall_src += arch-sh/syscalls/getuid.S
syscall_src += arch-sh/syscalls/getgid.S
syscall_src += arch-sh/syscalls/geteuid.S
@@ -20,8 +20,8 @@
syscall_src += arch-sh/syscalls/getppid.S
syscall_src += arch-sh/syscalls/setsid.S
syscall_src += arch-sh/syscalls/setgid.S
-syscall_src += arch-sh/syscalls/setreuid.S
-syscall_src += arch-sh/syscalls/setresuid.S
+syscall_src += arch-sh/syscalls/__setreuid.S
+syscall_src += arch-sh/syscalls/__setresuid.S
syscall_src += arch-sh/syscalls/setresgid.S
syscall_src += arch-sh/syscalls/__brk.S
syscall_src += arch-sh/syscalls/kill.S
diff --git a/libc/arch-sh/syscalls/setresuid.S b/libc/arch-sh/syscalls/__setresuid.S
similarity index 87%
rename from libc/arch-sh/syscalls/setresuid.S
rename to libc/arch-sh/syscalls/__setresuid.S
index 41fe349..424100e 100644
--- a/libc/arch-sh/syscalls/setresuid.S
+++ b/libc/arch-sh/syscalls/__setresuid.S
@@ -2,11 +2,11 @@
#include <sys/linux-syscalls.h>
.text
- .type setresuid, @function
- .globl setresuid
+ .type __setresuid, @function
+ .globl __setresuid
.align 4
-setresuid:
+__setresuid:
/* invoke trap */
mov.l 0f, r3 /* trap num */
diff --git a/libc/arch-sh/syscalls/setreuid.S b/libc/arch-sh/syscalls/__setreuid.S
similarity index 88%
rename from libc/arch-sh/syscalls/setreuid.S
rename to libc/arch-sh/syscalls/__setreuid.S
index 025df27..6990748 100644
--- a/libc/arch-sh/syscalls/setreuid.S
+++ b/libc/arch-sh/syscalls/__setreuid.S
@@ -2,11 +2,11 @@
#include <sys/linux-syscalls.h>
.text
- .type setreuid, @function
- .globl setreuid
+ .type __setreuid, @function
+ .globl __setreuid
.align 4
-setreuid:
+__setreuid:
/* invoke trap */
mov.l 0f, r3 /* trap num */
diff --git a/libc/arch-sh/syscalls/setuid.S b/libc/arch-sh/syscalls/__setuid.S
similarity index 89%
rename from libc/arch-sh/syscalls/setuid.S
rename to libc/arch-sh/syscalls/__setuid.S
index 1fb3148..f563de7 100644
--- a/libc/arch-sh/syscalls/setuid.S
+++ b/libc/arch-sh/syscalls/__setuid.S
@@ -2,11 +2,11 @@
#include <sys/linux-syscalls.h>
.text
- .type setuid, @function
- .globl setuid
+ .type __setuid, @function
+ .globl __setuid
.align 4
-setuid:
+__setuid:
/* invoke trap */
mov.l 0f, r3 /* trap num */
diff --git a/libc/arch-x86/syscalls.mk b/libc/arch-x86/syscalls.mk
index 6a528e3..ab026fe 100644
--- a/libc/arch-x86/syscalls.mk
+++ b/libc/arch-x86/syscalls.mk
@@ -7,7 +7,7 @@
syscall_src += arch-x86/syscalls/waitid.S
syscall_src += arch-x86/syscalls/__sys_clone.S
syscall_src += arch-x86/syscalls/execve.S
-syscall_src += arch-x86/syscalls/setuid.S
+syscall_src += arch-x86/syscalls/__setuid.S
syscall_src += arch-x86/syscalls/getuid.S
syscall_src += arch-x86/syscalls/getgid.S
syscall_src += arch-x86/syscalls/geteuid.S
@@ -20,8 +20,8 @@
syscall_src += arch-x86/syscalls/getppid.S
syscall_src += arch-x86/syscalls/setsid.S
syscall_src += arch-x86/syscalls/setgid.S
-syscall_src += arch-x86/syscalls/setreuid.S
-syscall_src += arch-x86/syscalls/setresuid.S
+syscall_src += arch-x86/syscalls/__setreuid.S
+syscall_src += arch-x86/syscalls/__setresuid.S
syscall_src += arch-x86/syscalls/setresgid.S
syscall_src += arch-x86/syscalls/__brk.S
syscall_src += arch-x86/syscalls/kill.S
diff --git a/libc/arch-x86/syscalls/setresuid.S b/libc/arch-x86/syscalls/__setresuid.S
similarity index 87%
rename from libc/arch-x86/syscalls/setresuid.S
rename to libc/arch-x86/syscalls/__setresuid.S
index f81cb39..c492dfb 100644
--- a/libc/arch-x86/syscalls/setresuid.S
+++ b/libc/arch-x86/syscalls/__setresuid.S
@@ -2,11 +2,11 @@
#include <sys/linux-syscalls.h>
.text
- .type setresuid, @function
- .globl setresuid
+ .type __setresuid, @function
+ .globl __setresuid
.align 4
-setresuid:
+__setresuid:
pushl %ebx
pushl %ecx
pushl %edx
diff --git a/libc/arch-x86/syscalls/setreuid.S b/libc/arch-x86/syscalls/__setreuid.S
similarity index 86%
rename from libc/arch-x86/syscalls/setreuid.S
rename to libc/arch-x86/syscalls/__setreuid.S
index 99e5d5b..111e999 100644
--- a/libc/arch-x86/syscalls/setreuid.S
+++ b/libc/arch-x86/syscalls/__setreuid.S
@@ -2,11 +2,11 @@
#include <sys/linux-syscalls.h>
.text
- .type setreuid, @function
- .globl setreuid
+ .type __setreuid, @function
+ .globl __setreuid
.align 4
-setreuid:
+__setreuid:
pushl %ebx
pushl %ecx
mov 12(%esp), %ebx
diff --git a/libc/arch-x86/syscalls/setuid.S b/libc/arch-x86/syscalls/__setuid.S
similarity index 85%
rename from libc/arch-x86/syscalls/setuid.S
rename to libc/arch-x86/syscalls/__setuid.S
index de334c0..1e5f285 100644
--- a/libc/arch-x86/syscalls/setuid.S
+++ b/libc/arch-x86/syscalls/__setuid.S
@@ -2,11 +2,11 @@
#include <sys/linux-syscalls.h>
.text
- .type setuid, @function
- .globl setuid
+ .type __setuid, @function
+ .globl __setuid
.align 4
-setuid:
+__setuid:
pushl %ebx
mov 8(%esp), %ebx
movl $__NR_setuid32, %eax
diff --git a/libc/bionic/cpuacct.c b/libc/bionic/cpuacct.c
new file mode 100644
index 0000000..abdbc51
--- /dev/null
+++ b/libc/bionic/cpuacct.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+#include <sys/stat.h>
+//#include <sys/types.h>
+
+int cpuacct_add(uid_t uid)
+{
+ int count;
+ FILE *fp;
+ char buf[80];
+
+ count = snprintf(buf, sizeof(buf), "/acct/uid/%d/tasks", uid);
+ fp = fopen(buf, "w+");
+ if (!fp) {
+ /* Note: sizeof("tasks") returns 6, which includes the NULL char */
+ buf[count - sizeof("tasks")] = 0;
+ if (mkdir(buf, 0775) < 0)
+ return -errno;
+
+ /* Note: sizeof("tasks") returns 6, which includes the NULL char */
+ buf[count - sizeof("tasks")] = '/';
+ fp = fopen(buf, "w+");
+ }
+ if (!fp)
+ return -errno;
+
+ fprintf(fp, "0");
+ if (fclose(fp))
+ return -errno;
+
+ return 0;
+}
diff --git a/libc/bionic/fork.c b/libc/bionic/fork.c
index 1c6a4ba..e20f548 100644
--- a/libc/bionic/fork.c
+++ b/libc/bionic/fork.c
@@ -43,6 +43,14 @@
ret = __fork();
if (ret != 0) { /* not a child process */
__timer_table_start_stop(0);
+ } else {
+ /*
+ * Newly created process must update cpu accounting.
+ * Call cpuacct_add passing in our uid, which will take
+ * the current task id and add it to the uid group passed
+ * as a parameter.
+ */
+ cpuacct_add(getuid());
}
return ret;
}
diff --git a/libc/include/sys/linux-unistd.h b/libc/include/sys/linux-unistd.h
index d6f706b..116d047 100644
--- a/libc/include/sys/linux-unistd.h
+++ b/libc/include/sys/linux-unistd.h
@@ -12,7 +12,7 @@
int waitid (int, pid_t, struct siginfo_t*, int,void*);
pid_t __sys_clone (int, void*, int*, void*, int*);
int execve (const char*, char* const*, char* const*);
-int setuid (uid_t);
+int __setuid (uid_t);
uid_t getuid (void);
gid_t getgid (void);
uid_t geteuid (void);
@@ -26,8 +26,8 @@
pid_t setsid (void);
int setgid (gid_t);
int seteuid (uid_t);
-int setreuid (uid_t, uid_t);
-int setresuid (uid_t, uid_t, uid_t);
+int __setreuid (uid_t, uid_t);
+int __setresuid (uid_t, uid_t, uid_t);
int setresgid (gid_t, gid_t, gid_t);
void* __brk (void*);
int kill (pid_t, int);
diff --git a/libc/unistd/seteuid.c b/libc/unistd/seteuid.c
index 42ee780..dd94932 100644
--- a/libc/unistd/seteuid.c
+++ b/libc/unistd/seteuid.c
@@ -29,5 +29,6 @@
int seteuid(uid_t euid)
{
- return setresuid(-1, euid,-1);
+ cpuacct_add(euid);
+ return __setresuid(-1, euid,-1);
}
diff --git a/libc/unistd/setresuid.c b/libc/unistd/setresuid.c
new file mode 100644
index 0000000..1964881
--- /dev/null
+++ b/libc/unistd/setresuid.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#include <unistd.h>
+
+int setresuid(uid_t ruid, uid_t euid, uid_t suid)
+{
+ cpuacct_add(euid);
+ return __setresuid(ruid, euid, suid);
+
+}
diff --git a/libc/unistd/setreuid.c b/libc/unistd/setreuid.c
new file mode 100644
index 0000000..04c2826
--- /dev/null
+++ b/libc/unistd/setreuid.c
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#include <unistd.h>
+
+int setreuid(uid_t ruid, uid_t euid)
+{
+ cpuacct_add(euid);
+ return __setreuid(ruid, euid);
+}
diff --git a/libc/unistd/setuid.c b/libc/unistd/setuid.c
new file mode 100644
index 0000000..8ab637d
--- /dev/null
+++ b/libc/unistd/setuid.c
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#include <unistd.h>
+
+int setuid(uid_t uid)
+{
+ cpuacct_add(uid);
+ return __setuid(uid);
+}