Port to CMake, get rid of os_int.h.

[stg.git] / stglibs / smux.lib / ber_tlv_tag.c

diff --git a/stglibs/smux.lib/ber_tlv_tag.c b/stglibs/smux.lib/ber_tlv_tag.c
deleted file mode 100644 (file)
index 4270876..0000000
--- a/stglibs/smux.lib/ber_tlv_tag.c
+++ /dev/null
@@ -1,144 +0,0 @@
-/*-
- * Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
- * Redistribution and modifications are permitted subject to BSD license.
- */
-#include <asn_internal.h>
-#include <ber_tlv_tag.h>
-#include <errno.h>
-
-ssize_t
-ber_fetch_tag(const void *ptr, size_t size, ber_tlv_tag_t *tag_r) {
-       ber_tlv_tag_t val;
-       ber_tlv_tag_t tclass;
-       size_t skipped;
-
-       if(size == 0)
-               return 0;
-
-       val = *(const uint8_t *)ptr;
-       tclass = (val >> 6);
-       if((val &= 0x1F) != 0x1F) {
-               /*
-                * Simple form: everything encoded in a single octet.
-                * Tag Class is encoded using two least significant bits.
-                */
-               *tag_r = (val << 2) | tclass;
-               return 1;
-       }
-
-       /*
-        * Each octet contains 7 bits of useful information.
-        * The MSB is 0 if it is the last octet of the tag.
-        */
-       for(val = 0, ptr = ((const char *)ptr) + 1, skipped = 2;
-                       skipped <= size;
-                               ptr = ((const char *)ptr) + 1, skipped++) {
-               unsigned int oct = *(const uint8_t *)ptr;
-               if(oct & 0x80) {
-                       val = (val << 7) | (oct & 0x7F);
-                       /*
-                        * Make sure there are at least 9 bits spare
-                        * at the MS side of a value.
-                        */
-                       if(val >> ((8 * sizeof(val)) - 9)) {
-                               /*
-                                * We would not be able to accomodate
-                                * any more tag bits.
-                                */
-                               return -1;
-                       }
-               } else {
-                       val = (val << 7) | oct;
-                       *tag_r = (val << 2) | tclass;
-                       return skipped;
-               }
-       }
-
-       return 0;       /* Want more */
-}
-
-
-ssize_t
-ber_tlv_tag_fwrite(ber_tlv_tag_t tag, FILE *f) {
-       char buf[sizeof("[APPLICATION ]") + 32];
-       ssize_t ret;
-
-       ret = ber_tlv_tag_snprint(tag, buf, sizeof(buf));
-       if(ret >= (ssize_t)sizeof(buf) || ret < 2) {
-               errno = EPERM;
-               return -1;
-       }
-
-       return fwrite(buf, 1, ret, f);
-}
-
-ssize_t
-ber_tlv_tag_snprint(ber_tlv_tag_t tag, char *buf, size_t size) {
-       char *type = 0;
-       int ret;
-
-       switch(tag & 0x3) {
-       case ASN_TAG_CLASS_UNIVERSAL:   type = "UNIVERSAL ";    break;
-       case ASN_TAG_CLASS_APPLICATION: type = "APPLICATION ";  break;
-       case ASN_TAG_CLASS_CONTEXT:     type = "";              break;
-       case ASN_TAG_CLASS_PRIVATE:     type = "PRIVATE ";      break;
-       }
-
-       ret = snprintf(buf, size, "[%s%u]", type, ((unsigned)tag) >> 2);
-       if(ret <= 0 && size) buf[0] = '\0';     /* against broken libc's */
-
-       return ret;
-}
-
-char *
-ber_tlv_tag_string(ber_tlv_tag_t tag) {
-       static char buf[sizeof("[APPLICATION ]") + 32];
-
-       (void)ber_tlv_tag_snprint(tag, buf, sizeof(buf));
-
-       return buf;
-}
-
-
-size_t
-ber_tlv_tag_serialize(ber_tlv_tag_t tag, void *bufp, size_t size) {
-       int tclass = BER_TAG_CLASS(tag);
-       ber_tlv_tag_t tval = BER_TAG_VALUE(tag);
-       uint8_t *buf = (uint8_t *)bufp;
-       uint8_t *end;
-       size_t required_size;
-       size_t i;
-
-       if(tval <= 30) {
-               /* Encoded in 1 octet */
-               if(size) buf[0] = (tclass << 6) | tval;
-               return 1;
-       } else if(size) {
-               *buf++ = (tclass << 6) | 0x1F;
-               size--;
-       }
-
-       /*
-        * Compute the size of the subsequent bytes.
-        */
-       for(required_size = 1, i = 7; i < 8 * sizeof(tval); i += 7) {
-               if(tval >> i)
-                       required_size++;
-               else
-                       break;
-       }
-
-       if(size < required_size)
-               return required_size + 1;
-
-       /*
-        * Fill in the buffer, space permitting.
-        */
-       end = buf + required_size - 1;
-       for(i -= 7; buf < end; i -= 7, buf++)
-               *buf = 0x80 | ((tval >> i) & 0x7F);
-       *buf = (tval & 0x7F);   /* Last octet without high bit */
-
-       return required_size + 1;
-}
-