look for __sym__ as well as sym

[ppp.git] / modules / vjcompress.c

diff --git a/modules/vjcompress.c b/modules/vjcompress.c
index ef2c9c487fb619985b7a604f9b10bd5d00d6f999..73a59d4986a61c816560d66de3a372116142f40d 100644 (file)
--- a/modules/vjcompress.c
+++ b/modules/vjcompress.c
@@ -23,13 +23,27 @@
  * Modified June 1993 by Paul Mackerras, paulus@cs.anu.edu.au,
  * so that the entire packet being decompressed doesn't have
  * to be in contiguous memory (just the compressed header).
  * Modified June 1993 by Paul Mackerras, paulus@cs.anu.edu.au,
  * so that the entire packet being decompressed doesn't have
  * to be in contiguous memory (just the compressed header).

+ */
+
+/*
+ * This version is used under SunOS 4.x, DEC Alpha OSF/1, AIX 4.x,
+ * and SVR4 systems including Solaris 2.

  *
  *

- * $Id: vjcompress.c,v 1.4 1994/12/08 00:35:33 paulus Exp $
+ * $Id: vjcompress.c,v 1.6 1995/05/29 06:33:55 paulus Exp $

  */
 
 #include <sys/types.h>
 #include <sys/param.h>
 
  */
 
 #include <sys/types.h>
 #include <sys/param.h>
 

+#ifdef __svr4__
+#ifndef __GNUC__
+#include <sys/byteorder.h>     /* for ntohl, etc. */
+#else
+/* make sure we don't get the gnu "fixed" one! */
+#include "/usr/include/sys/byteorder.h"
+#endif
+#endif
+

 #ifdef __osf__
 #include <net/net_globals.h>
 #endif
 #ifdef __osf__
 #include <net/net_globals.h>
 #endif


@@ -121,19 +135,23 @@ vj_compress_init(comp, max_state)
 
 #define DECODEL(f) { \
        if (*cp == 0) {\
 
 #define DECODEL(f) { \
        if (*cp == 0) {\

-               (f) = htonl(ntohl(f) + ((cp[1] << 8) | cp[2])); \
+               u_int32_t tmp = ntohl(f) + ((cp[1] << 8) | cp[2]); \
+               (f) = htonl(tmp); \

                cp += 3; \
        } else { \
                cp += 3; \
        } else { \

-               (f) = htonl(ntohl(f) + (u_int32_t)*cp++); \
+               u_int32_t tmp = ntohl(f) + (u_int32_t)*cp++; \
+               (f) = htonl(tmp); \

        } \
 }
 
 #define DECODES(f) { \
        if (*cp == 0) {\
        } \
 }
 
 #define DECODES(f) { \
        if (*cp == 0) {\

-               (f) = htons(ntohs(f) + ((cp[1] << 8) | cp[2])); \
+               u_short tmp = ntohs(f) + ((cp[1] << 8) | cp[2]); \
+               (f) = htons(tmp); \

                cp += 3; \
        } else { \
                cp += 3; \
        } else { \

-               (f) = htons(ntohs(f) + (u_int32_t)*cp++); \
+               u_short tmp = ntohs(f) + (u_int32_t)*cp++; \
+               (f) = htons(tmp); \

        } \
 }
 
        } \
 }
 


@@ -460,6 +478,7 @@ vj_uncompress_tcp(buf, buflen, total_len, comp, hdrp, hlenp)
     register struct cstate *cs;
     register u_short *bp;
     register u_int vjlen;
     register struct cstate *cs;
     register u_short *bp;
     register u_int vjlen;

+    register u_int32_t tmp;

 
     INCR(vjs_compressedin);
     cp = buf;
 
     INCR(vjs_compressedin);
     cp = buf;


@@ -494,15 +513,19 @@ vj_uncompress_tcp(buf, buflen, total_len, comp, hdrp, hlenp)
     switch (changes & SPECIALS_MASK) {
     case SPECIAL_I:
        {
     switch (changes & SPECIALS_MASK) {
     case SPECIAL_I:
        {

-           register u_int i = ntohs(cs->cs_ip.ip_len) - cs->cs_hlen;
-           th->th_ack = htonl(ntohl(th->th_ack) + i);
-           th->th_seq = htonl(ntohl(th->th_seq) + i);
+           register u_int32_t i = ntohs(cs->cs_ip.ip_len) - cs->cs_hlen;
+           /* some compilers can't nest inline assembler.. */
+           tmp = ntohl(th->th_ack) + i;
+           th->th_ack = htonl(tmp);
+           tmp = ntohl(th->th_seq) + i;
+           th->th_seq = htonl(tmp);

        }
        break;
 
     case SPECIAL_D:
        }
        break;
 
     case SPECIAL_D:

-       th->th_seq = htonl(ntohl(th->th_seq) + ntohs(cs->cs_ip.ip_len)
-                          - cs->cs_hlen);
+       /* some compilers can't nest inline assembler.. */
+       tmp = ntohl(th->th_seq) + ntohs(cs->cs_ip.ip_len) - cs->cs_hlen;
+       th->th_seq = htonl(tmp);

        break;
 
     default:
        break;
 
     default:


@@ -521,8 +544,10 @@ vj_uncompress_tcp(buf, buflen, total_len, comp, hdrp, hlenp)
     }
     if (changes & NEW_I) {
        DECODES(cs->cs_ip.ip_id);
     }
     if (changes & NEW_I) {
        DECODES(cs->cs_ip.ip_id);

-    } else
-       cs->cs_ip.ip_id = htons(ntohs(cs->cs_ip.ip_id) + 1);
+    } else {
+       cs->cs_ip.ip_id = ntohs(cs->cs_ip.ip_id) + 1;
+       cs->cs_ip.ip_id = htons(cs->cs_ip.ip_id);
+    }

 
     /*
      * At this point, cp points to the first byte of data in the
 
     /*
      * At this point, cp points to the first byte of data in the