Changeset 1620

Timestamp:

Nov 7, 2004, 4:44:35 PM (21 years ago)

Author:

bird

Message:

Debugging signals.

Location:

trunk/src/emx/src/lib

Files:

• process/sigaction.c (modified) (1 diff, 1 prop)
• process/sigvec.c (modified) (1 diff, 1 prop)
• sys/signals.c (modified) (2 diffs, 1 prop)

trunk/src/emx/src/lib/process/sigaction.c

@@ -65 +65 @@
      * Make copy of the input (we can safely crash here) and validate it.
      */
-    if (!__SIGSET_SIG_VALID(iSignalNo))
+    if (    !__SIGSET_SIG_VALID(iSignalNo)
+        ||  (   pSigAct
+             && (iSignalNo == SIGSTOP || iSignalNo == SIGKILL)))
     {
         LIBC_ASSERTM_FAILED("Invalid signal no %d\n", iSignalNo);

trunk/src/emx/src/lib/process/sigvec.c

@@ -65 +65 @@
 
     /*
+     * sigvec doesn't allow any operation on non-catachble signals.
+     */
+    if (iSignalNo == SIGKILL || iSignalNo == SIGSTOP)
+    {
+        errno = EINVAL;
+        LIBCLOG_RETURN_INT(-1);
+    }
+
+    /*
      * Forward to sigaction() converting the input and output as we go along.
      */

trunk/src/emx/src/lib/sys/signals.c

@@ -2441 +2441 @@
      * Check input.
      */
-    if (!__SIGSET_SIG_VALID(iSignalNo))
+    if (    !__SIGSET_SIG_VALID(iSignalNo)
+        ||  (pSigAct && (gafSignalProperties[iSignalNo] & SPP_NOBLOCK)))
         LIBCLOG_RETURN_INT(-EINVAL);
 
@@ -2464 +2465 @@
             if (    pSigAct->__sigaction_u.__sa_handler != SIG_ERR
                 &&  pSigAct->__sigaction_u.__sa_handler != SIG_ACK
-                &&  pSigAct->__sigaction_u.__sa_handler != SIG_HOLD
-                &&  pSigAct->__sigaction_u.__sa_handler != NULL)
+                &&  pSigAct->__sigaction_u.__sa_handler != SIG_HOLD)
             {
                 /*