support old draft rfc deflate number

[ppp.git] / ultrix / ppp-deflate.c

diff --git a/ultrix/ppp-deflate.c b/ultrix/ppp-deflate.c
index 018a59bb6c8683446b56a4da647ac88dd0dd3ca4..45f8dbef995a953a1b54866ca0da0a572c5830bc 100644 (file)
--- a/ultrix/ppp-deflate.c
+++ b/ultrix/ppp-deflate.c
@@ -1,4 +1,4 @@
-/*     $Id: ppp-deflate.c,v 1.4 1997/11/27 06:06:33 paulus Exp $       */
+/*     $Id: ppp-deflate.c,v 1.5 1998/03/25 03:11:37 paulus Exp $       */
 
 /*
  * ppp_deflate.c - interface the zlib procedures for Deflate compression
@@ -97,6 +97,23 @@ struct compressor ppp_deflate = {
     z_comp_stats,              /* decomp_stat */
 };
 
+struct compressor ppp_deflate_draft = {
+    CI_DEFLATE_DRAFT,          /* compress_proto */
+    z_comp_alloc,              /* comp_alloc */
+    z_comp_free,               /* comp_free */
+    z_comp_init,               /* comp_init */
+    z_comp_reset,              /* comp_reset */
+    z_compress,                        /* compress */
+    z_comp_stats,              /* comp_stat */
+    z_decomp_alloc,            /* decomp_alloc */
+    z_decomp_free,             /* decomp_free */
+    z_decomp_init,             /* decomp_init */
+    z_decomp_reset,            /* decomp_reset */
+    z_decompress,              /* decompress */
+    z_incomp,                  /* incomp */
+    z_comp_stats,              /* decomp_stat */
+};
+
 /*
  * Some useful mbuf macros not in mbuf.h.
  */
@@ -139,7 +156,8 @@ z_comp_alloc(options, opt_len)
     struct deflate_state *state;
     int w_size;
 
-    if (opt_len != CILEN_DEFLATE || options[0] != CI_DEFLATE
+    if (opt_len != CILEN_DEFLATE
+       || (options[0] != CI_DEFLATE && options[0] != CI_DEFLATE_DRAFT)
        || options[1] != CILEN_DEFLATE
        || DEFLATE_METHOD(options[2]) != DEFLATE_METHOD_VAL
        || options[3] != DEFLATE_CHK_SEQUENCE)
@@ -186,7 +204,8 @@ z_comp_init(arg, options, opt_len, unit, hdrlen, debug)
 {
     struct deflate_state *state = (struct deflate_state *) arg;
 
-    if (opt_len < CILEN_DEFLATE || options[0] != CI_DEFLATE
+    if (opt_len < CILEN_DEFLATE
+       || (options[0] != CI_DEFLATE && options[0] != CI_DEFLATE_DRAFT)
        || options[1] != CILEN_DEFLATE
        || DEFLATE_METHOD(options[2]) != DEFLATE_METHOD_VAL
        || DEFLATE_SIZE(options[2]) != state->w_size
@@ -374,7 +393,8 @@ z_decomp_alloc(options, opt_len)
     struct deflate_state *state;
     int w_size;
 
-    if (opt_len != CILEN_DEFLATE || options[0] != CI_DEFLATE
+    if (opt_len != CILEN_DEFLATE
+       || (options[0] != CI_DEFLATE && options[0] != CI_DEFLATE_DRAFT)
        || options[1] != CILEN_DEFLATE
        || DEFLATE_METHOD(options[2]) != DEFLATE_METHOD_VAL
        || options[3] != DEFLATE_CHK_SEQUENCE)
@@ -420,7 +440,8 @@ z_decomp_init(arg, options, opt_len, unit, hdrlen, mru, debug)
 {
     struct deflate_state *state = (struct deflate_state *) arg;
 
-    if (opt_len < CILEN_DEFLATE || options[0] != CI_DEFLATE
+    if (opt_len < CILEN_DEFLATE
+       || (options[0] != CI_DEFLATE && options[0] != CI_DEFLATE_DRAFT)
        || options[1] != CILEN_DEFLATE
        || DEFLATE_METHOD(options[2]) != DEFLATE_METHOD_VAL
        || DEFLATE_SIZE(options[2]) != state->w_size