From: Ulrich Drepper <drepper@redhat.com>
Date: Wed, 26 Sep 2001 05:23:10 +0000 (+0000)
Subject: (struct cmsghdr): Don't declare __cmsg_data field if its size would be bigger
X-Git-Tag: glibc-2.16-ports-before-merge~1787
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=916ea7e833299175911244898bf6665aaea7c166;p=thirdparty%2Fglibc.git

(struct cmsghdr): Don't declare __cmsg_data field if its size would be bigger
than 0.
(CMSG_DATA): Adjust accordingly.
---

diff --git a/sysdeps/unix/sysv/aix/bits/socket.h b/sysdeps/unix/sysv/aix/bits/socket.h
index 45877fade4c..1fdadfe082d 100644
--- a/sysdeps/unix/sysv/aix/bits/socket.h
+++ b/sysdeps/unix/sysv/aix/bits/socket.h
@@ -203,14 +203,13 @@ struct cmsghdr
 				   of cmsghdr structure.  */
     int cmsg_level;		/* Originating protocol.  */
     int cmsg_type;		/* Protocol specific type.  */
-#if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2
-    unsigned char __cmsg_data[0]; /* Ancillary data.  */
-    /* XXX Perhaps this should be removed.  */
+#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
+    __extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data.  */
 #endif
   };
 
 /* Ancillary data object manipulation macros.  */
-#if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2
+#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
 # define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
 #else
 # define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))
diff --git a/sysdeps/unix/sysv/linux/alpha/bits/socket.h b/sysdeps/unix/sysv/linux/alpha/bits/socket.h
index 2d57128231d..82c4302ed51 100644
--- a/sysdeps/unix/sysv/linux/alpha/bits/socket.h
+++ b/sysdeps/unix/sysv/linux/alpha/bits/socket.h
@@ -233,12 +233,13 @@ struct cmsghdr
 				   of cmsghdr structure.  */
     int cmsg_level;		/* Originating protocol.  */
     int cmsg_type;		/* Protocol specific type.  */
+#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
     __extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data.  */
-    /* XXX Perhaps this should be removed.  */
+#endif
   };
 
 /* Ancillary data object manipulation macros.  */
-#if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2
+#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
 # define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
 #else
 # define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))
diff --git a/sysdeps/unix/sysv/linux/mips/bits/socket.h b/sysdeps/unix/sysv/linux/mips/bits/socket.h
index 482eefe257d..a10c3a711ac 100644
--- a/sysdeps/unix/sysv/linux/mips/bits/socket.h
+++ b/sysdeps/unix/sysv/linux/mips/bits/socket.h
@@ -233,12 +233,13 @@ struct cmsghdr
 				   of cmsghdr structure.  */
     int cmsg_level;		/* Originating protocol.  */
     int cmsg_type;		/* Protocol specific type.  */
+#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
     __extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data.  */
-    /* XXX Perhaps this should be removed.  */
+#endif
   };
 
 /* Ancillary data object manipulation macros.  */
-#if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2
+#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
 # define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
 #else
 # define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))