[PATCH] move ifaddrs.h from libc/inet to include

[Ricard Wanderlof]

Yeah, should have split this into one 'follow-up-the-thread' and one
actual patch. So, resending the patch with correct subject. Sorry for the
confusion.

Here's a patch to move ifaddrs.h from libc/inet/ to include/ . It is also
removed from the installed include files if UCLIBC_SUPPORT_AI_ADDRCONFIG
is not enabled. It's largely the same as what Bernhard and Yann sent in a
while ago. It has been tested with UCLIBC_SUPPORT_AI_ADDRCONFIG enabled
and disabled.

Patch made against svn 23243, and included inline as well as an
attachment. If there are no comments, I'll go ahead and commit this in a
couple of days.

/Ricard


Index: Makefile.in
===================================================================
--- Makefile.in (revision 23242)
+++ Makefile.in (working copy)
@@ -331,6 +331,11 @@
         # Remove crypt.h since libcrypt was disabled upon request
         $(RM) $(PREFIX)$(DEVEL_PREFIX)include/crypt.h
   endif
+ifneq ($(UCLIBC_SUPPORT_AI_ADDRCONFIG),y)
+       # Remove ifaddrs.h since the corresponding functionality was disabled
+       # by request
+       $(RM) $(PREFIX)$(DEVEL_PREFIX)include/ifaddrs.h
+endif

   # Installs development library links.
   install_dev: install_headers
Index: include/ifaddrs.h
===================================================================
--- include/ifaddrs.h   (revision 0)
+++ include/ifaddrs.h   (revision 0)
@@ -0,0 +1,74 @@
+/* ifaddrs.h -- declarations for getting network interface addresses
+   Copyright (C) 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _IFADDRS_H
+#define _IFADDRS_H     1
+
+#include <features.h>
+#include <sys/socket.h>
+
+__BEGIN_DECLS
+
+/* The `getifaddrs' function generates a linked list of these structures.
+   Each element of the list describes one network interface.  */
+struct ifaddrs
+{
+  struct ifaddrs *ifa_next;    /* Pointer to the next structure.  */
+
+  char *ifa_name;              /* Name of this network interface.  */
+  unsigned int ifa_flags;      /* Flags as from SIOCGIFFLAGS ioctl.  */
+
+  struct sockaddr *ifa_addr;   /* Network address of this interface.  */
+  struct sockaddr *ifa_netmask; /* Netmask of this interface.  */
+  union
+  {
+    /* At most one of the following two is valid.  If the IFF_BROADCAST
+       bit is set in `ifa_flags', then `ifa_broadaddr' is valid.  If the
+       IFF_POINTOPOINT bit is set, then `ifa_dstaddr' is valid.
+       It is never the case that both these bits are set at once.  */
+    struct sockaddr *ifu_broadaddr; /* Broadcast address of this interface. */
+    struct sockaddr *ifu_dstaddr; /* Point-to-point destination address.  */
+  } ifa_ifu;
+  /* These very same macros are defined by <net/if.h> for `struct ifaddr'.
+     So if they are defined already, the existing definitions will be fine.  */
+# ifndef ifa_broadaddr
+#  define ifa_broadaddr        ifa_ifu.ifu_broadaddr
+# endif
+# ifndef ifa_dstaddr
+#  define ifa_dstaddr  ifa_ifu.ifu_dstaddr
+# endif
+
+  void *ifa_data;              /* Address-specific data (may be unused).  */
+};
+
+
+/* Create a linked list of `struct ifaddrs' structures, one for each
+   network interface on the host machine.  If successful, store the
+   list in *IFAP and return 0.  On errors, return -1 and set `errno'.
+
+   The storage returned in *IFAP is allocated dynamically and can
+   only be properly freed by passing it to `freeifaddrs'.  */
+extern int getifaddrs (struct ifaddrs **__ifap) __THROW;
+
+/* Reclaim the storage allocated by a previous `getifaddrs' call.  */
+extern void freeifaddrs (struct ifaddrs *__ifa)  __THROW;
+
+__END_DECLS
+
+#endif /* ifaddrs.h */
Index: libc/inet/ifaddrs.c
===================================================================
--- libc/inet/ifaddrs.c (revision 23242)
+++ libc/inet/ifaddrs.c (working copy)
@@ -22,7 +22,7 @@
   #include <alloca.h>
   #include <assert.h>
   #include <errno.h>
-#include "ifaddrs.h"
+#include <ifaddrs.h>
   #include <net/if.h>
   #include <netinet/in.h>
   #include <netpacket/packet.h>
Index: libc/inet/getaddrinfo.c
===================================================================
--- libc/inet/getaddrinfo.c     (revision 23242)
+++ libc/inet/getaddrinfo.c     (working copy)
@@ -68,7 +68,7 @@
   #include <sys/un.h>
   #include <sys/utsname.h>
   #include <net/if.h>
-#include "ifaddrs.h"
+#include <ifaddrs.h>

   /* Experimentally off - libc_hidden_proto(memcpy) */
   /* Experimentally off - libc_hidden_proto(memset) */
Index: Makefile.in
===================================================================
--- Makefile.in (revision 23242)
+++ Makefile.in (working copy)
@@ -331,6 +331,11 @@
  # Remove crypt.h since libcrypt was disabled upon request
  $(RM) $(PREFIX)$(DEVEL_PREFIX)include/crypt.h
 endif
+ifneq ($(UCLIBC_SUPPORT_AI_ADDRCONFIG),y)
+ # Remove ifaddrs.h since the corresponding functionality was disabled
+ # by request
+ $(RM) $(PREFIX)$(DEVEL_PREFIX)include/ifaddrs.h
+endif
 
 # Installs development library links.
 install_dev: install_headers
Index: include/ifaddrs.h
===================================================================
--- include/ifaddrs.h (revision 0)
+++ include/ifaddrs.h (revision 0)
@@ -0,0 +1,74 @@
+/* ifaddrs.h -- declarations for getting network interface addresses
+   Copyright (C) 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _IFADDRS_H
+#define _IFADDRS_H 1
+
+#include <features.h>
+#include <sys/socket.h>
+
+__BEGIN_DECLS
+
+/* The `getifaddrs' function generates a linked list of these structures.
+   Each element of the list describes one network interface.  */
+struct ifaddrs
+{
+  struct ifaddrs *ifa_next; /* Pointer to the next structure.  */
+
+  char *ifa_name; /* Name of this network interface.  */
+  unsigned int ifa_flags; /* Flags as from SIOCGIFFLAGS ioctl.  */
+
+  struct sockaddr *ifa_addr; /* Network address of this interface.  */
+  struct sockaddr *ifa_netmask; /* Netmask of this interface.  */
+  union
+  {
+    /* At most one of the following two is valid.  If the IFF_BROADCAST
+       bit is set in `ifa_flags', then `ifa_broadaddr' is valid.  If the
+       IFF_POINTOPOINT bit is set, then `ifa_dstaddr' is valid.
+       It is never the case that both these bits are set at once.  */
+    struct sockaddr *ifu_broadaddr; /* Broadcast address of this interface. */
+    struct sockaddr *ifu_dstaddr; /* Point-to-point destination address.  */
+  } ifa_ifu;
+  /* These very same macros are defined by <net/if.h> for `struct ifaddr'.
+     So if they are defined already, the existing definitions will be fine.  */
+# ifndef ifa_broadaddr
+#  define ifa_broadaddr ifa_ifu.ifu_broadaddr
+# endif
+# ifndef ifa_dstaddr
+#  define ifa_dstaddr ifa_ifu.ifu_dstaddr
+# endif
+
+  void *ifa_data; /* Address-specific data (may be unused).  */
+};
+
+
+/* Create a linked list of `struct ifaddrs' structures, one for each
+   network interface on the host machine.  If successful, store the
+   list in *IFAP and return 0.  On errors, return -1 and set `errno'.
+
+   The storage returned in *IFAP is allocated dynamically and can
+   only be properly freed by passing it to `freeifaddrs'.  */
+extern int getifaddrs (struct ifaddrs **__ifap) __THROW;
+
+/* Reclaim the storage allocated by a previous `getifaddrs' call.  */
+extern void freeifaddrs (struct ifaddrs *__ifa)  __THROW;
+
+__END_DECLS
+
+#endif /* ifaddrs.h */
Index: libc/inet/ifaddrs.c
===================================================================
--- libc/inet/ifaddrs.c (revision 23242)
+++ libc/inet/ifaddrs.c (working copy)
@@ -22,7 +22,7 @@
 #include <alloca.h>
 #include <assert.h>
 #include <errno.h>
-#include "ifaddrs.h"
+#include <ifaddrs.h>
 #include <net/if.h>
 #include <netinet/in.h>
 #include <netpacket/packet.h>
Index: libc/inet/getaddrinfo.c
===================================================================
--- libc/inet/getaddrinfo.c (revision 23242)
+++ libc/inet/getaddrinfo.c (working copy)
@@ -68,7 +68,7 @@
 #include <sys/un.h>
 #include <sys/utsname.h>
 #include <net/if.h>
-#include "ifaddrs.h"
+#include <ifaddrs.h>
 
 /* Experimentally off - libc_hidden_proto(memcpy) */
 /* Experimentally off - libc_hidden_proto(memset) */

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[Bernhard Reutner-Fischer]

On Wed, Aug 27, 2008 at 04:29:57PM +0200, Ricard Wanderlof wrote:

>
> Yeah, should have split this into one 'follow-up-the-thread' and one  
> actual patch. So, resending the patch with correct subject. Sorry for the
> confusion.
>
> Here's a patch to move ifaddrs.h from libc/inet/ to include/ . It is also
> removed from the installed include files if UCLIBC_SUPPORT_AI_ADDRCONFIG
> is not enabled. It's largely the same as what Bernhard and Yann sent in a
> while ago. It has been tested with UCLIBC_SUPPORT_AI_ADDRCONFIG enabled
> and disabled.
>
> Patch made against svn 23243, and included inline as well as an
> attachment. If there are no comments, I'll go ahead and commit this in a
> couple of days.

Ok if you change the comment to fit in one line, like
        # Remove ifaddrs.h since it was disabled upon request
so it's congruent with the rest.
Thanks,
PS: I don't remember if you added a testcase for both getifaddrs() and
freeifaddrs(). Please consider adding those if you haven't done it
already.

>
> /Ricard
>
>
> Index: Makefile.in
> ===================================================================
> --- Makefile.in (revision 23242)
> +++ Makefile.in (working copy)
> @@ -331,6 +331,11 @@
>         # Remove crypt.h since libcrypt was disabled upon request
>         $(RM) $(PREFIX)$(DEVEL_PREFIX)include/crypt.h
>   endif
> +ifneq ($(UCLIBC_SUPPORT_AI_ADDRCONFIG),y)
> +       # Remove ifaddrs.h since the corresponding functionality was disabled
> +       # by request
> +       $(RM) $(PREFIX)$(DEVEL_PREFIX)include/ifaddrs.h
> +endif
>
>   # Installs development library links.
>   install_dev: install_headers
> Index: include/ifaddrs.h
> ===================================================================
> --- include/ifaddrs.h   (revision 0)
> +++ include/ifaddrs.h   (revision 0)
> @@ -0,0 +1,74 @@
> +/* ifaddrs.h -- declarations for getting network interface addresses
> +   Copyright (C) 2002 Free Software Foundation, Inc.
> +   This file is part of the GNU C Library.
> +
> +   The GNU C Library is free software; you can redistribute it and/or
> +   modify it under the terms of the GNU Lesser General Public
> +   License as published by the Free Software Foundation; either
> +   version 2.1 of the License, or (at your option) any later version.
> +
> +   The GNU C Library is distributed in the hope that it will be useful,
> +   but WITHOUT ANY WARRANTY; without even the implied warranty of
> +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
> +   Lesser General Public License for more details.
> +
> +   You should have received a copy of the GNU Lesser General Public
> +   License along with the GNU C Library; if not, write to the Free
> +   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
> +   02111-1307 USA.  */
> +
> +#ifndef _IFADDRS_H
> +#define _IFADDRS_H     1
> +
> +#include <features.h>
> +#include <sys/socket.h>
> +
> +__BEGIN_DECLS
> +
> +/* The `getifaddrs' function generates a linked list of these structures.
> +   Each element of the list describes one network interface.  */
> +struct ifaddrs
> +{
> +  struct ifaddrs *ifa_next;    /* Pointer to the next structure.  */
> +
> +  char *ifa_name;              /* Name of this network interface.  */
> +  unsigned int ifa_flags;      /* Flags as from SIOCGIFFLAGS ioctl.  */
> +
> +  struct sockaddr *ifa_addr;   /* Network address of this interface.  */
> +  struct sockaddr *ifa_netmask; /* Netmask of this interface.  */
> +  union
> +  {
> +    /* At most one of the following two is valid.  If the IFF_BROADCAST
> +       bit is set in `ifa_flags', then `ifa_broadaddr' is valid.  If the
> +       IFF_POINTOPOINT bit is set, then `ifa_dstaddr' is valid.
> +       It is never the case that both these bits are set at once.  */
> +    struct sockaddr *ifu_broadaddr; /* Broadcast address of this interface. */
> +    struct sockaddr *ifu_dstaddr; /* Point-to-point destination address.  */
> +  } ifa_ifu;
> +  /* These very same macros are defined by <net/if.h> for `struct ifaddr'.
> +     So if they are defined already, the existing definitions will be fine.  */
> +# ifndef ifa_broadaddr
> +#  define ifa_broadaddr        ifa_ifu.ifu_broadaddr
> +# endif
> +# ifndef ifa_dstaddr
> +#  define ifa_dstaddr  ifa_ifu.ifu_dstaddr
> +# endif
> +
> +  void *ifa_data;              /* Address-specific data (may be unused).  */
> +};
> +
> +
> +/* Create a linked list of `struct ifaddrs' structures, one for each
> +   network interface on the host machine.  If successful, store the
> +   list in *IFAP and return 0.  On errors, return -1 and set `errno'.
> +
> +   The storage returned in *IFAP is allocated dynamically and can
> +   only be properly freed by passing it to `freeifaddrs'.  */
> +extern int getifaddrs (struct ifaddrs **__ifap) __THROW;
> +
> +/* Reclaim the storage allocated by a previous `getifaddrs' call.  */
> +extern void freeifaddrs (struct ifaddrs *__ifa)  __THROW;
> +
> +__END_DECLS
> +
> +#endif /* ifaddrs.h */
> Index: libc/inet/ifaddrs.c
> ===================================================================
> --- libc/inet/ifaddrs.c (revision 23242)
> +++ libc/inet/ifaddrs.c (working copy)
> @@ -22,7 +22,7 @@
>   #include <alloca.h>
>   #include <assert.h>
>   #include <errno.h>
> -#include "ifaddrs.h"
> +#include <ifaddrs.h>
>   #include <net/if.h>
>   #include <netinet/in.h>
>   #include <netpacket/packet.h>
> Index: libc/inet/getaddrinfo.c
> ===================================================================
> --- libc/inet/getaddrinfo.c     (revision 23242)
> +++ libc/inet/getaddrinfo.c     (working copy)
> @@ -68,7 +68,7 @@
>   #include <sys/un.h>
>   #include <sys/utsname.h>
>   #include <net/if.h>
> -#include "ifaddrs.h"
> +#include <ifaddrs.h>
>
>   /* Experimentally off - libc_hidden_proto(memcpy) */
>   /* Experimentally off - libc_hidden_proto(memset) */

Content-Description: diff to svn 23243.moveifaddrs

>Index: Makefile.in
>===================================================================
>--- Makefile.in (revision 23242)
>+++ Makefile.in (working copy)
>@@ -331,6 +331,11 @@
> # Remove crypt.h since libcrypt was disabled upon request
> $(RM) $(PREFIX)$(DEVEL_PREFIX)include/crypt.h
> endif
>+ifneq ($(UCLIBC_SUPPORT_AI_ADDRCONFIG),y)
>+ # Remove ifaddrs.h since the corresponding functionality was disabled
>+ # by request
>+ $(RM) $(PREFIX)$(DEVEL_PREFIX)include/ifaddrs.h
>+endif
>
> # Installs development library links.
> install_dev: install_headers
>Index: include/ifaddrs.h
>===================================================================
>--- include/ifaddrs.h (revision 0)
>+++ include/ifaddrs.h (revision 0)
>@@ -0,0 +1,74 @@
>+/* ifaddrs.h -- declarations for getting network interface addresses
>+   Copyright (C) 2002 Free Software Foundation, Inc.
>+   This file is part of the GNU C Library.
>+
>+   The GNU C Library is free software; you can redistribute it and/or
>+   modify it under the terms of the GNU Lesser General Public
>+   License as published by the Free Software Foundation; either
>+   version 2.1 of the License, or (at your option) any later version.
>+
>+   The GNU C Library is distributed in the hope that it will be useful,
>+   but WITHOUT ANY WARRANTY; without even the implied warranty of
>+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
>+   Lesser General Public License for more details.
>+
>+   You should have received a copy of the GNU Lesser General Public
>+   License along with the GNU C Library; if not, write to the Free
>+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
>+   02111-1307 USA.  */
>+
>+#ifndef _IFADDRS_H
>+#define _IFADDRS_H 1
>+
>+#include <features.h>
>+#include <sys/socket.h>
>+
>+__BEGIN_DECLS
>+
>+/* The `getifaddrs' function generates a linked list of these structures.
>+   Each element of the list describes one network interface.  */
>+struct ifaddrs
>+{
>+  struct ifaddrs *ifa_next; /* Pointer to the next structure.  */
>+
>+  char *ifa_name; /* Name of this network interface.  */
>+  unsigned int ifa_flags; /* Flags as from SIOCGIFFLAGS ioctl.  */
>+
>+  struct sockaddr *ifa_addr; /* Network address of this interface.  */
>+  struct sockaddr *ifa_netmask; /* Netmask of this interface.  */
>+  union
>+  {
>+    /* At most one of the following two is valid.  If the IFF_BROADCAST
>+       bit is set in `ifa_flags', then `ifa_broadaddr' is valid.  If the
>+       IFF_POINTOPOINT bit is set, then `ifa_dstaddr' is valid.
>+       It is never the case that both these bits are set at once.  */
>+    struct sockaddr *ifu_broadaddr; /* Broadcast address of this interface. */
>+    struct sockaddr *ifu_dstaddr; /* Point-to-point destination address.  */
>+  } ifa_ifu;
>+  /* These very same macros are defined by <net/if.h> for `struct ifaddr'.
>+     So if they are defined already, the existing definitions will be fine.  */
>+# ifndef ifa_broadaddr
>+#  define ifa_broadaddr ifa_ifu.ifu_broadaddr
>+# endif
>+# ifndef ifa_dstaddr
>+#  define ifa_dstaddr ifa_ifu.ifu_dstaddr
>+# endif
>+
>+  void *ifa_data; /* Address-specific data (may be unused).  */
>+};
>+
>+
>+/* Create a linked list of `struct ifaddrs' structures, one for each
>+   network interface on the host machine.  If successful, store the
>+   list in *IFAP and return 0.  On errors, return -1 and set `errno'.
>+
>+   The storage returned in *IFAP is allocated dynamically and can
>+   only be properly freed by passing it to `freeifaddrs'.  */
>+extern int getifaddrs (struct ifaddrs **__ifap) __THROW;
>+
>+/* Reclaim the storage allocated by a previous `getifaddrs' call.  */
>+extern void freeifaddrs (struct ifaddrs *__ifa)  __THROW;
>+
>+__END_DECLS
>+
>+#endif /* ifaddrs.h */
>Index: libc/inet/ifaddrs.c
>===================================================================
>--- libc/inet/ifaddrs.c (revision 23242)
>+++ libc/inet/ifaddrs.c (working copy)
>@@ -22,7 +22,7 @@
> #include <alloca.h>
> #include <assert.h>
> #include <errno.h>
>-#include "ifaddrs.h"
>+#include <ifaddrs.h>
> #include <net/if.h>
> #include <netinet/in.h>
> #include <netpacket/packet.h>
>Index: libc/inet/getaddrinfo.c
>===================================================================
>--- libc/inet/getaddrinfo.c (revision 23242)
>+++ libc/inet/getaddrinfo.c (working copy)
>@@ -68,7 +68,7 @@
> #include <sys/un.h>
> #include <sys/utsname.h>
> #include <net/if.h>
>-#include "ifaddrs.h"
>+#include <ifaddrs.h>
>
> /* Experimentally off - libc_hidden_proto(memcpy) */
> /* Experimentally off - libc_hidden_proto(memset) */

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[Ricard Wanderlof]

On Wed, 27 Aug 2008, Bernhard Reutner-Fischer wrote:

>> Patch made against svn 23243, and included inline as well as an
>> attachment. If there are no comments, I'll go ahead and commit this in a
>> couple of days.
>
> Ok if you change the comment to fit in one line, like
>        # Remove ifaddrs.h since it was disabled upon request
> so it's congruent with the rest.

Ok, will do.

> Thanks,
> PS: I don't remember if you added a testcase for both getifaddrs() and
> freeifaddrs(). Please consider adding those if you haven't done it
> already.

Yes I should. I'm planning some more uClibc work later this autumn and
I'll give it more thought then.

/Ricard
--
Ricard Wolf Wanderlöf                           ricardw(at)axis.com
Axis Communications AB, Lund, Sweden            www.axis.com
Phone [phone]                           Fax [phone]
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[Yann E. MORIN]

Ricard, Bernhard,
All,

On Wednesday 27 August 2008 16:29:57 Ricard Wanderlof wrote:
> Here's a patch to move ifaddrs.h from libc/inet/ to include/ . It is also
> removed from the installed include files if UCLIBC_SUPPORT_AI_ADDRCONFIG
> is not enabled. It's largely the same as what Bernhard and Yann sent in a
> while ago. It has been tested with UCLIBC_SUPPORT_AI_ADDRCONFIG enabled
> and disabled.

OK from my point of view. Apart form the comment by Bernhard.

Regards,
Yann E. MORIN.

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