wsproxy: Mac OS X build fixes

- pass CFLAGS and LDFLAGS in case one needs to use -m32
- link to libcrypto for _ERR_print_errors_fp
- __THROW is non-standard define it to nothing by default
- use b64_ntop and b64_pton instead of mangled versions, OSX doesn't mangle them in the same way
- access() takes two arguments!
Signed-off-by: François Revol <revol@free.fr>

utils/Makefile

 wsproxy: wsproxy.o websocket.o md5.o
-	$(CC) $^ -l ssl -l resolv -o $@
+	$(CC) $(LDFLAGS) $^ -l ssl -lcrypto -l resolv -o $@
 
 websocket.o: websocket.c websocket.h md5.h
 wsproxy.o: wsproxy.c websocket.h
 md5.o: md5.c md5.h
-	$(CC) -c -o $@ $*.c -DHAVE_MEMCPY -DSTDC_HEADERS
+	$(CC) $(CFLAGS) -c -o $@ $*.c -DHAVE_MEMCPY -DSTDC_HEADERS
 
 clean:
 	rm -f wsproxy wsproxy.o websocket.o md5.o

utils/md5.c

@@ -36,6 +36,10 @@
 # endif
 #endif
 
+#ifndef __THROW
+#define __THROW
+#endif
+
 #include "md5.h"
 
 #ifdef _LIBC

utils/websocket.c

@@ -191,7 +191,7 @@ int encode(u_char const *src, size_t srclength, char *target, size_t targsize) {
     int i, sz = 0, len = 0;
     unsigned char chr;
     target[sz++] = '\x00';
-    len = __b64_ntop(src, srclength, target+sz, targsize-sz);
+    len = b64_ntop(src, srclength, target+sz, targsize-sz);
     if (len < 0) {
         return len;
     }
@@ -213,7 +213,7 @@ int decode(char *src, size_t srclength, u_char *target, size_t targsize) {
         /* We may have more than one frame */
         end = memchr(start, '\xff', srclength);
         *end = '\x00';
-        len = __b64_pton(start, target+retlen, targsize-retlen);
+        len = b64_pton(start, target+retlen, targsize-retlen);
         if (len < 0) {
             return len;
         }

utils/wsproxy.c

@@ -324,7 +324,7 @@ int main(int argc, char *argv[])
 
     if (ssl_only) {
         printf("cert: %s\n", settings.cert);
-        if (!settings.cert || !access(settings.cert)) {
+        if (!settings.cert || !access(settings.cert, R_OK)) {
             usage("SSL only and cert file not found\n");
         }
     }