slirp: Remove obsolete backward-compatibility cruft

The slirp code does not use index() and gethostid() anymore,
so these parts can be removed without problems.
memmove() and strerror() should be available on each of the
supported platforms nowadays, too, so these wrappers are also
not needed anymore.
And we certainly also do not support Ultrix anymore, so no
need to keep the code for this platform anymore.
Signed-off-by: NThomas Huth <thuth@redhat.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NSamuel Thibault <samuel.thibault@ens-lyon.org>

slirp/misc.c

@@ -60,27 +60,6 @@ int add_exec(struct ex_list **ex_ptr, int do_pty, char *exec,
 	return 0;
 }
 
-#ifndef HAVE_STRERROR
-
-/*
- * For systems with no strerror
- */
-
-extern int sys_nerr;
-extern char *sys_errlist[];
-
-char *
-strerror(error)
-	int error;
-{
-	if (error < sys_nerr)
-	   return sys_errlist[error];
-	else
-	   return "Unknown error.";
-}
-
-#endif
-
 
 #ifdef _WIN32
 

slirp/slirp.h

@@ -23,11 +23,6 @@ typedef char *caddr_t;
 # include <sys/bitypes.h>
 #endif
 
-
-#ifndef HAVE_MEMMOVE
-#define memmove(x, y, z) bcopy(y, x, z)
-#endif
-
 #ifndef _WIN32
 #include <sys/uio.h>
 #endif
@@ -37,17 +32,6 @@ typedef char *caddr_t;
 #include <arpa/inet.h>
 #endif
 
-/* Systems lacking strdup() definition in <string.h>. */
-#if defined(ultrix)
-char *strdup(const char *);
-#endif
-
-/* Systems lacking malloc() definition in <stdlib.h>. */
-#if defined(ultrix) || defined(hcx)
-void *malloc(size_t arg);
-void free(void *ptr);
-#endif
-
 #ifndef NO_UNIX_SOCKETS
 #include <sys/un.h>
 #endif
@@ -259,18 +243,6 @@ void if_start(Slirp *);
 void if_start(struct ttys *);
 #endif
 
-#ifndef HAVE_STRERROR
- char *strerror(int error);
-#endif
-
-#ifndef HAVE_INDEX
- char *index(const char *, int);
-#endif
-
-#ifndef HAVE_GETHOSTID
- long gethostid(void);
-#endif
-
 #ifndef _WIN32
 #include <netdb.h>
 #endif

slirp/slirp_config.h

@@ -34,9 +34,6 @@
 #define HAVE_SYS_FILIO_H
 #endif
 
-/* Define if you have strerror */
-#define HAVE_STRERROR
-
 /* Define if you have sys/bitypes.h */
 #undef HAVE_SYS_BITYPES_H
 
@@ -82,15 +79,6 @@
 #define HAVE_INET_ATON
 #endif
 
-/* Define if you have index() */
-#define HAVE_INDEX
-
-/* Define if you have memmove */
-#define HAVE_MEMMOVE
-
-/* Define if you have gethostid */
-#define HAVE_GETHOSTID
-
 /* Define if you DON'T have unix-domain sockets */
 #undef NO_UNIX_SOCKETS
 #ifdef _WIN32