1 files changed, 52 insertions, 39 deletions

diff --git a/freebsd/contrib/libpcap/portability.h b/freebsd/contrib/libpcap/portability.h
index b3612542..543846e8 100644
--- a/freebsd/contrib/libpcap/portability.h
+++ b/freebsd/contrib/libpcap/portability.h
@@ -38,6 +38,7 @@
  * Helpers for portability between Windows and UN*X and between different
  * flavors of UN*X.
  */
+#include <stdarg.h>	/* we declare varargs functions on some platforms */
 
 #include "pcap/funcattrs.h"
 
@@ -45,49 +46,45 @@
 extern "C" {
 #endif
 
-#ifndef HAVE_STRLCPY
- /*
-  * Macro that does the same thing as strlcpy().
-  */
- #if defined(_MSC_VER) || defined(__MINGW32__)
-  /*
-   * strncpy_s() is supported at least back to Visual
-   * Studio 2005.
-   */
-  #define strlcpy(x, y, z) \
-	strncpy_s((x), (z), (y), _TRUNCATE)
-
- #else
-  #define strlcpy(x, y, z) \
-	(strncpy((x), (y), (z)), \
-	 ((z) <= 0 ? 0 : ((x)[(z) - 1] = '\0')), \
-	 (void) strlen((y)))
- #endif
+#ifdef HAVE_STRLCAT
+  #define pcap_strlcat	strlcat
+#else
+  #if defined(_MSC_VER) || defined(__MINGW32__)
+    /*
+     * strncat_s() is supported at least back to Visual
+     * Studio 2005.
+     */
+    #define pcap_strlcat(x, y, z) \
+	strncat_s((x), (z), (y), _TRUNCATE)
+  #else
+    /*
+     * Define it ourselves.
+     */
+    extern size_t pcap_strlcat(char * restrict dst, const char * restrict src, size_t dstsize);
+  #endif
 #endif
 
-#ifndef HAVE_STRLCAT
- /*
-  * Macro that does the same thing as strlcat().
-  */
- #if defined(_MSC_VER) || defined(__MINGW32__)
-  /*
-   * strncat_s() is supported at least back to Visual
-   * Studio 2005.
-   */
-  #define strlcat(x, y, z) \
-	strncat_s((x), (z), (y), _TRUNCATE)
- #else
-  /*
-   * ANSI C says strncat() always null-terminates its first argument,
-   * so 1) we don't need to explicitly null-terminate the string
-   * ourselves and 2) we need to leave room for the null terminator.
-   */
-  #define strlcat(x, y, z) \
-	strncat((x), (y), (z) - strlen((x)) - 1)
- #endif
+#ifdef HAVE_STRLCPY
+  #define pcap_strlcpy	strlcpy
+#else
+  #if defined(_MSC_VER) || defined(__MINGW32__)
+    /*
+     * strncpy_s() is supported at least back to Visual
+     * Studio 2005.
+     */
+    #define pcap_strlcpy(x, y, z) \
+	strncpy_s((x), (z), (y), _TRUNCATE)
+  #else
+    /*
+     * Define it ourselves.
+     */
+    extern size_t pcap_strlcpy(char * restrict dst, const char * restrict src, size_t dstsize);
+  #endif
 #endif
 
 #ifdef _MSC_VER
+  #define isascii	__isascii
+
   /*
    * If <crtdbg.h> has been included, and _DEBUG is defined, and
    * __STDC__ is zero, <crtdbg.h> will define strdup() to call
@@ -134,6 +131,23 @@ extern int pcap_snprintf(char *, size_t, PCAP_FORMAT_STRING(const char *), ...)
 extern int pcap_vsnprintf(char *, size_t, const char *, va_list ap);
 #endif
 
+/*
+ * We also want asprintf(), for some cases where we use it to construct
+ * dynamically-allocated variable-length strings.
+ */
+#ifdef HAVE_ASPRINTF
+#define pcap_asprintf asprintf
+#else
+extern int pcap_asprintf(char **, PCAP_FORMAT_STRING(const char *), ...)
+    PCAP_PRINTFLIKE(2, 3);
+#endif
+
+#ifdef HAVE_VASPRINTF
+#define pcap_vasprintf vasprintf
+#else
+extern int pcap_vasprintf(char **, const char *, va_list ap);
+#endif
+
 #ifdef HAVE_STRTOK_R
   #define pcap_strtok_r	strtok_r
 #else
@@ -146,7 +160,6 @@ extern int pcap_vsnprintf(char *, size_t, const char *, va_list ap);
     /*
      * Define it ourselves.
      */
-    #define NEED_STRTOK_R
     extern char *pcap_strtok_r(char *, const char *, char **);
   #endif
 #endif /* HAVE_STRTOK_R */