diff --git a/cfg/posix.cfg b/cfg/posix.cfg
index 23d2d8f95..ee384075a 100644
--- a/cfg/posix.cfg
+++ b/cfg/posix.cfg
@@ -1,5 +1,6 @@
 <?xml version="1.0"?>
 <def format="1">
+  <!-- int usleep(useconds_t useconds); -->
   <function name="usleep">
     <noreturn>false</noreturn>
     <arg nr="1">
@@ -301,6 +302,19 @@
       <not-uninit/>
     </arg>
   </function>
+  <!-- int nice(int incr); -->
+  <function name="nice">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <leak-ignore/>
+  </function>
+  <!-- int pause(void); -->
+  <function name="pause">
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+  </function>
   <!-- int close(int fildes); -->
   <function name="close">
     <noreturn>false</noreturn>
@@ -322,6 +336,29 @@
     </arg>
     <leak-ignore/>
   </function>
+  <!-- long int fpathconf(int fildes, int name); -->
+  <function name="fpathconf">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+    </arg>
+    <leak-ignore/>
+  </function>
+  <!-- long int pathconf(const char *path, int name); -->
+  <function name="pathconf">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-null/>
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+    </arg>
+    <leak-ignore/>
+  </function>
   <!-- long int sysconf(int name); -->
   <function name="sysconf">
     <noreturn>false</noreturn>
@@ -648,13 +685,52 @@
     <noreturn>false</noreturn>
     <use-retval/>
   </function>
+  <!-- uid_t getuid (void); -->
   <function name="getuid">
     <noreturn>false</noreturn>
     <use-retval/>
+    <leak-ignore/>
+  </function>
+  <!-- pid_t getsid(pid_t pid); -->
+  <function name="getsid">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <use-retval/>
+    <leak-ignore/>
   </function>
   <function name="geteuid">
     <noreturn>false</noreturn>
     <use-retval/>
+    <leak-ignore/>
+  </function>
+  <!-- pid_t getppid(void); -->
+  <function name="getppid">
+    <noreturn>false</noreturn>
+    <use-retval/>
+    <leak-ignore/>
+  </function>
+  <!-- pid_t getpid(void); -->
+  <function name="getpid">
+    <noreturn>false</noreturn>
+    <use-retval/>
+    <leak-ignore/>
+  </function>
+  <!-- pid_t getpgrp(void); -->
+  <function name="getpgrp">
+    <noreturn>false</noreturn>
+    <use-retval/>
+    <leak-ignore/>
+  </function>
+  <!-- ppid_t getpgid(pid_t pid); -->
+  <function name="getpgid">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <use-retval/>
+    <leak-ignore/>
   </function>
   <function name="setuid">
     <noreturn>false</noreturn>
@@ -662,6 +738,7 @@
     <arg nr="1">
       <not-uninit/>
     </arg>
+    <leak-ignore/>
   </function>
   <function name="seteuid">
     <noreturn>false</noreturn>
@@ -669,6 +746,7 @@
     <arg nr="1">
       <not-uninit/>
     </arg>
+    <leak-ignore/>
   </function>
   <function name="setgid">
     <noreturn>false</noreturn>
@@ -676,6 +754,7 @@
     <arg nr="1">
       <not-uninit/>
     </arg>
+    <leak-ignore/>
   </function>
   <function name="setegid">
     <noreturn>false</noreturn>
@@ -683,6 +762,7 @@
     <arg nr="1">
       <not-uninit/>
     </arg>
+    <leak-ignore/>
   </function>
   <!-- int setpgid(pid_t pid, pid_t pgid); -->
   <function name="setpgid">
@@ -694,6 +774,10 @@
       <not-uninit/>
     </arg>
   </function>
+  <!-- int pipe(int fildes[2]); -->
+  <function name="pipe">
+    <noreturn>false</noreturn>
+  </function>
   <!-- pid_t setpgrp(void); -->
   <function name="setpgrp">
     <noreturn>false</noreturn>
@@ -1103,6 +1187,28 @@
       <not-null/>
     </arg>
   </function>
+  <!-- off_t lseek(int fildes, off_t offset, int whence); -->
+  <function name="lseek">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+    </arg>
+    <arg nr="3">
+      <not-uninit/>
+    </arg>
+    <leak-ignore/>
+  </function>
+  <!-- int nanosleep(const struct timespec *rqtp, struct timespec *rmtp); -->
+  <function name="nanosleep">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-null/>
+    </arg>
+    <leak-ignore/>
+  </function>
   <!-- void setkey(const char *key); -->
   <function name="setkey">
     <noreturn>false</noreturn>
@@ -1110,5 +1216,14 @@
       <not-uninit/>
       <not-null/>
     </arg>
+    <leak-ignore/>
+  </function>
+  <!-- char *getpass(const char *prompt); -->
+  <function name="getpass">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-null/>
+    </arg>
+    <leak-ignore/>
   </function>
 </def>