nc: add missing cast

xfuncs: add dprintf for dietlibc

3 files changed, 35 insertions, 1 deletions

diff --git a/include/platform.h b/include/platform.h
index a1ec17a7b..860143f7f 100644
--- a/include/platform.h
+++ b/include/platform.h
@@ -194,6 +194,9 @@ typedef unsigned long long int  uintmax_t;
  * libbb.  This would require a platform.c.  It's not going to be cleaned
  * out of the tree, so stop saying it should be. */
 #define fdprintf dprintf
+#ifdef __dietlibc__
+int dprintf(int fd, const char *format, ...);
+#endif
 
 /* Don't use lchown with glibc older than 2.1.x ... uC-libc lacks it */
 #if (defined __GLIBC__ && __GLIBC__ <= 2 && __GLIBC_MINOR__ < 1) || \
diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c
index 313e32814..4790aa140 100644
--- a/libbb/xfuncs.c
+++ b/libbb/xfuncs.c
@@ -411,6 +411,37 @@ char *xasprintf(const char *format, ...)
         return string_ptr;
 }
 
+#ifdef __dietlibc__
+int dprintf(int fd, const char *format, ...)
+{
+        va_list p;
+        int r;
+        char *string_ptr;
+
+#if 1
+        // GNU extension
+        va_start(p, format);
+        r = vasprintf(&string_ptr, format, p);
+        va_end(p);
+#else
+        // Bloat for systems that haven't got the GNU extension.
+        va_start(p, format);
+        r = vsnprintf(NULL, 0, format, p);
+        va_end(p);
+        string_ptr = xmalloc(r+1);
+        va_start(p, format);
+        r = vsnprintf(string_ptr, r+1, format, p);
+        va_end(p);
+#endif
+
+        if (r >= 0) {
+                full_write(fd, string_ptr, r);
+                free(string_ptr);
+        }
+        return r;
+}
+#endif
+
 // Die with an error message if we can't copy an entire FILE * to stdout, then
 // close that file.
 void xprint_and_close_file(FILE *file)
diff --git a/networking/nc.c b/networking/nc.c
index 5fd9242cc..b2a4596d6 100644
--- a/networking/nc.c
+++ b/networking/nc.c
@@ -104,7 +104,7 @@ int nc_main(int argc, char **argv)
 
                         if (!lport) {
                                 socklen_t len = sizeof(address);
-                                getsockname(sfd, &address, &len);
+                                getsockname(sfd, (struct sockaddr *) &address, &len);
                                 fdprintf(2, "%d\n", SWAP_BE16(address.sin_port));
                         }
  repeatyness: