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 <span id="projectnumber">5.4.1</span>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef ASN1_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define ASN1_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span>
<a name="l00004"></a>00004 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00005"></a>00005 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {
<a name="l00006"></a>00006 <span class="preprocessor">#endif</span>
<a name="l00007"></a>00007 <span class="preprocessor"></span>
<a name="l00008"></a>00008 <span class="preprocessor">#define PARSE_PACKET 0</span>
<a name="l00009"></a>00009 <span class="preprocessor"></span><span class="preprocessor">#define DUMP_PACKET 1</span>
<a name="l00010"></a>00010 <span class="preprocessor"></span>
<a name="l00011"></a>00011 <span class="comment">/*</span>
<a name="l00012"></a>00012 <span class="comment"> * Definitions for Abstract Syntax Notation One, ASN.1</span>
<a name="l00013"></a>00013 <span class="comment"> * As defined in ISO/IS 8824 and ISO/IS 8825</span>
<a name="l00014"></a>00014 <span class="comment"> *</span>
<a name="l00015"></a>00015 <span class="comment"> *</span>
<a name="l00016"></a>00016 <span class="comment"> */</span>
<a name="l00017"></a>00017 <span class="comment">/***********************************************************</span>
<a name="l00018"></a>00018 <span class="comment"> Copyright 1988, 1989 by Carnegie Mellon University</span>
<a name="l00019"></a>00019 <span class="comment"></span>
<a name="l00020"></a>00020 <span class="comment"> All Rights Reserved</span>
<a name="l00021"></a>00021 <span class="comment"></span>
<a name="l00022"></a>00022 <span class="comment">Permission to use, copy, modify, and distribute this software and its </span>
<a name="l00023"></a>00023 <span class="comment">documentation for any purpose and without fee is hereby granted, </span>
<a name="l00024"></a>00024 <span class="comment">provided that the above copyright notice appear in all copies and that</span>
<a name="l00025"></a>00025 <span class="comment">both that copyright notice and this permission notice appear in </span>
<a name="l00026"></a>00026 <span class="comment">supporting documentation, and that the name of CMU not be</span>
<a name="l00027"></a>00027 <span class="comment">used in advertising or publicity pertaining to distribution of the</span>
<a name="l00028"></a>00028 <span class="comment">software without specific, written prior permission. </span>
<a name="l00029"></a>00029 <span class="comment"></span>
<a name="l00030"></a>00030 <span class="comment">CMU DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING</span>
<a name="l00031"></a>00031 <span class="comment">ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL</span>
<a name="l00032"></a>00032 <span class="comment">CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR</span>
<a name="l00033"></a>00033 <span class="comment">ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,</span>
<a name="l00034"></a>00034 <span class="comment">WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,</span>
<a name="l00035"></a>00035 <span class="comment">ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS</span>
<a name="l00036"></a>00036 <span class="comment">SOFTWARE.</span>
<a name="l00037"></a>00037 <span class="comment">******************************************************************/</span>
<a name="l00038"></a>00038
<a name="l00039"></a>00039
<a name="l00040"></a>00040 <span class="preprocessor">#ifndef MAX_SUBID </span><span class="comment">/* temporary - duplicate definition protection */</span>
<a name="l00041"></a>00041 <span class="preprocessor">#ifndef EIGHTBIT_SUBIDS</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span> <span class="keyword">typedef</span> u_long oid;
<a name="l00043"></a>00043 <span class="preprocessor">#define MAX_SUBID 0xFFFFFFFF</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span> <span class="keyword">typedef</span> u_char oid;
<a name="l00046"></a>00046 <span class="preprocessor">#define MAX_SUBID 0xFF</span>
<a name="l00047"></a>00047 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span>
<a name="l00050"></a>00050 <span class="preprocessor">#define MIN_OID_LEN 2</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span><span class="preprocessor">#define MAX_OID_LEN 128 </span><span class="comment">/* max subid's in an oid */</span>
<a name="l00052"></a>00052 <span class="preprocessor">#ifndef MAX_NAME_LEN </span><span class="comment">/* conflicts with some libraries */</span>
<a name="l00053"></a>00053 <span class="preprocessor">#define MAX_NAME_LEN MAX_OID_LEN </span><span class="comment">/* obsolete. use MAX_OID_LEN */</span>
<a name="l00054"></a>00054 <span class="preprocessor">#endif</span>
<a name="l00055"></a>00055 <span class="preprocessor"></span>
<a name="l00056"></a>00056 <span class="preprocessor">#define OID_LENGTH(x) (sizeof(x)/sizeof(oid))</span>
<a name="l00057"></a>00057 <span class="preprocessor"></span>
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="preprocessor">#define ASN_BOOLEAN ((u_char)0x01)</span>
<a name="l00060"></a>00060 <span class="preprocessor"></span><span class="preprocessor">#define ASN_INTEGER ((u_char)0x02)</span>
<a name="l00061"></a>00061 <span class="preprocessor"></span><span class="preprocessor">#define ASN_BIT_STR ((u_char)0x03)</span>
<a name="l00062"></a>00062 <span class="preprocessor"></span><span class="preprocessor">#define ASN_OCTET_STR ((u_char)0x04)</span>
<a name="l00063"></a>00063 <span class="preprocessor"></span><span class="preprocessor">#define ASN_NULL ((u_char)0x05)</span>
<a name="l00064"></a>00064 <span class="preprocessor"></span><span class="preprocessor">#define ASN_OBJECT_ID ((u_char)0x06)</span>
<a name="l00065"></a>00065 <span class="preprocessor"></span><span class="preprocessor">#define ASN_SEQUENCE ((u_char)0x10)</span>
<a name="l00066"></a>00066 <span class="preprocessor"></span><span class="preprocessor">#define ASN_SET ((u_char)0x11)</span>
<a name="l00067"></a>00067 <span class="preprocessor"></span>
<a name="l00068"></a>00068 <span class="preprocessor">#define ASN_UNIVERSAL ((u_char)0x00)</span>
<a name="l00069"></a>00069 <span class="preprocessor"></span><span class="preprocessor">#define ASN_APPLICATION ((u_char)0x40)</span>
<a name="l00070"></a>00070 <span class="preprocessor"></span><span class="preprocessor">#define ASN_CONTEXT ((u_char)0x80)</span>
<a name="l00071"></a>00071 <span class="preprocessor"></span><span class="preprocessor">#define ASN_PRIVATE ((u_char)0xC0)</span>
<a name="l00072"></a>00072 <span class="preprocessor"></span>
<a name="l00073"></a>00073 <span class="preprocessor">#define ASN_PRIMITIVE ((u_char)0x00)</span>
<a name="l00074"></a>00074 <span class="preprocessor"></span><span class="preprocessor">#define ASN_CONSTRUCTOR ((u_char)0x20)</span>
<a name="l00075"></a>00075 <span class="preprocessor"></span>
<a name="l00076"></a>00076 <span class="preprocessor">#define ASN_LONG_LEN (0x80)</span>
<a name="l00077"></a>00077 <span class="preprocessor"></span><span class="preprocessor">#define ASN_EXTENSION_ID (0x1F)</span>
<a name="l00078"></a>00078 <span class="preprocessor"></span><span class="preprocessor">#define ASN_BIT8 (0x80)</span>
<a name="l00079"></a>00079 <span class="preprocessor"></span>
<a name="l00080"></a>00080 <span class="preprocessor">#define IS_CONSTRUCTOR(byte) ((byte) & ASN_CONSTRUCTOR)</span>
<a name="l00081"></a>00081 <span class="preprocessor"></span><span class="preprocessor">#define IS_EXTENSION_ID(byte) (((byte) & ASN_EXTENSION_ID) == ASN_EXTENSION_ID)</span>
<a name="l00082"></a>00082 <span class="preprocessor"></span>
<a name="l00083"></a><a class="code" href="structcounter64.html">00083</a> <span class="keyword">struct </span><a class="code" href="structcounter64.html">counter64</a> {
<a name="l00084"></a>00084 u_long high;
<a name="l00085"></a>00085 u_long low;
<a name="l00086"></a>00086 };
<a name="l00087"></a>00087
<a name="l00088"></a>00088 <span class="preprocessor">#ifdef NETSNMP_WITH_OPAQUE_SPECIAL_TYPES</span>
<a name="l00089"></a>00089 <span class="preprocessor"></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structcounter64.html">counter64</a> integer64;
<a name="l00090"></a>00090 <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structcounter64.html">counter64</a> unsigned64;
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <span class="comment">/*</span>
<a name="l00093"></a>00093 <span class="comment"> * The BER inside an OPAQUE is an context specific with a value of 48 (0x30)</span>
<a name="l00094"></a>00094 <span class="comment"> * plus the "normal" tag. For a Counter64, the tag is 0x46 (i.e., an</span>
<a name="l00095"></a>00095 <span class="comment"> * applications specific tag with value 6). So the value for a 64 bit</span>
<a name="l00096"></a>00096 <span class="comment"> * counter is 0x46 + 0x30, or 0x76 (118 base 10). However, values</span>
<a name="l00097"></a>00097 <span class="comment"> * greater than 30 can not be encoded in one octet. So the first octet</span>
<a name="l00098"></a>00098 <span class="comment"> * has the class, in this case context specific (ASN_CONTEXT), and</span>
<a name="l00099"></a>00099 <span class="comment"> * the special value (i.e., 31) to indicate that the real value follows</span>
<a name="l00100"></a>00100 <span class="comment"> * in one or more octets. The high order bit of each following octet</span>
<a name="l00101"></a>00101 <span class="comment"> * indicates if the value is encoded in additional octets. A high order</span>
<a name="l00102"></a>00102 <span class="comment"> * bit of zero, indicates the last. For this "hack", only one octet</span>
<a name="l00103"></a>00103 <span class="comment"> * will be used for the value. </span>
<a name="l00104"></a>00104 <span class="comment"> */</span>
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="comment">/*</span>
<a name="l00107"></a>00107 <span class="comment"> * first octet of the tag </span>
<a name="l00108"></a>00108 <span class="comment"> */</span>
<a name="l00109"></a>00109 <span class="preprocessor">#define ASN_OPAQUE_TAG1 (ASN_CONTEXT | ASN_EXTENSION_ID)</span>
<a name="l00110"></a>00110 <span class="preprocessor"></span> <span class="comment">/*</span>
<a name="l00111"></a>00111 <span class="comment"> * base value for the second octet of the tag - the</span>
<a name="l00112"></a>00112 <span class="comment"> * second octet was the value for the tag </span>
<a name="l00113"></a>00113 <span class="comment"> */</span>
<a name="l00114"></a>00114 <span class="preprocessor">#define ASN_OPAQUE_TAG2 ((u_char)0x30)</span>
<a name="l00115"></a>00115 <span class="preprocessor"></span>
<a name="l00116"></a>00116 <span class="preprocessor">#define ASN_OPAQUE_TAG2U ((u_char)0x2f) </span><span class="comment">/* second octet of tag for union */</span>
<a name="l00117"></a>00117
<a name="l00118"></a>00118 <span class="comment">/*</span>
<a name="l00119"></a>00119 <span class="comment"> * All the ASN.1 types for SNMP "should have been" defined in this file,</span>
<a name="l00120"></a>00120 <span class="comment"> * but they were not. (They are defined in snmp_impl.h) Thus, the tag for</span>
<a name="l00121"></a>00121 <span class="comment"> * Opaque and Counter64 is defined, again, here with a different names. </span>
<a name="l00122"></a>00122 <span class="comment"> */</span>
<a name="l00123"></a>00123 <span class="preprocessor">#define ASN_APP_OPAQUE (ASN_APPLICATION | 4)</span>
<a name="l00124"></a>00124 <span class="preprocessor"></span><span class="preprocessor">#define ASN_APP_COUNTER64 (ASN_APPLICATION | 6)</span>
<a name="l00125"></a>00125 <span class="preprocessor"></span><span class="preprocessor">#define ASN_APP_FLOAT (ASN_APPLICATION | 8)</span>
<a name="l00126"></a>00126 <span class="preprocessor"></span><span class="preprocessor">#define ASN_APP_DOUBLE (ASN_APPLICATION | 9)</span>
<a name="l00127"></a>00127 <span class="preprocessor"></span><span class="preprocessor">#define ASN_APP_I64 (ASN_APPLICATION | 10)</span>
<a name="l00128"></a>00128 <span class="preprocessor"></span><span class="preprocessor">#define ASN_APP_U64 (ASN_APPLICATION | 11)</span>
<a name="l00129"></a>00129 <span class="preprocessor"></span><span class="preprocessor">#define ASN_APP_UNION (ASN_PRIVATE | 1) </span><span class="comment">/* or ASN_PRIV_UNION ? */</span>
<a name="l00130"></a>00130
<a name="l00131"></a>00131 <span class="comment">/*</span>
<a name="l00132"></a>00132 <span class="comment"> * value for Counter64 </span>
<a name="l00133"></a>00133 <span class="comment"> */</span>
<a name="l00134"></a>00134 <span class="preprocessor">#define ASN_OPAQUE_COUNTER64 (ASN_OPAQUE_TAG2 + ASN_APP_COUNTER64)</span>
<a name="l00135"></a>00135 <span class="preprocessor"></span> <span class="comment">/*</span>
<a name="l00136"></a>00136 <span class="comment"> * max size of BER encoding of Counter64 </span>
<a name="l00137"></a>00137 <span class="comment"> */</span>
<a name="l00138"></a>00138 <span class="preprocessor">#define ASN_OPAQUE_COUNTER64_MX_BER_LEN 12</span>
<a name="l00139"></a>00139 <span class="preprocessor"></span>
<a name="l00140"></a>00140 <span class="comment">/*</span>
<a name="l00141"></a>00141 <span class="comment"> * value for Float </span>
<a name="l00142"></a>00142 <span class="comment"> */</span>
<a name="l00143"></a>00143 <span class="preprocessor">#define ASN_OPAQUE_FLOAT (ASN_OPAQUE_TAG2 + ASN_APP_FLOAT)</span>
<a name="l00144"></a>00144 <span class="preprocessor"></span> <span class="comment">/*</span>
<a name="l00145"></a>00145 <span class="comment"> * size of BER encoding of Float </span>
<a name="l00146"></a>00146 <span class="comment"> */</span>
<a name="l00147"></a>00147 <span class="preprocessor">#define ASN_OPAQUE_FLOAT_BER_LEN 7</span>
<a name="l00148"></a>00148 <span class="preprocessor"></span>
<a name="l00149"></a>00149 <span class="comment">/*</span>
<a name="l00150"></a>00150 <span class="comment"> * value for Double </span>
<a name="l00151"></a>00151 <span class="comment"> */</span>
<a name="l00152"></a>00152 <span class="preprocessor">#define ASN_OPAQUE_DOUBLE (ASN_OPAQUE_TAG2 + ASN_APP_DOUBLE)</span>
<a name="l00153"></a>00153 <span class="preprocessor"></span> <span class="comment">/*</span>
<a name="l00154"></a>00154 <span class="comment"> * size of BER encoding of Double </span>
<a name="l00155"></a>00155 <span class="comment"> */</span>
<a name="l00156"></a>00156 <span class="preprocessor">#define ASN_OPAQUE_DOUBLE_BER_LEN 11</span>
<a name="l00157"></a>00157 <span class="preprocessor"></span>
<a name="l00158"></a>00158 <span class="comment">/*</span>
<a name="l00159"></a>00159 <span class="comment"> * value for Integer64 </span>
<a name="l00160"></a>00160 <span class="comment"> */</span>
<a name="l00161"></a>00161 <span class="preprocessor">#define ASN_OPAQUE_I64 (ASN_OPAQUE_TAG2 + ASN_APP_I64)</span>
<a name="l00162"></a>00162 <span class="preprocessor"></span> <span class="comment">/*</span>
<a name="l00163"></a>00163 <span class="comment"> * max size of BER encoding of Integer64 </span>
<a name="l00164"></a>00164 <span class="comment"> */</span>
<a name="l00165"></a>00165 <span class="preprocessor">#define ASN_OPAQUE_I64_MX_BER_LEN 11</span>
<a name="l00166"></a>00166 <span class="preprocessor"></span>
<a name="l00167"></a>00167 <span class="comment">/*</span>
<a name="l00168"></a>00168 <span class="comment"> * value for Unsigned64 </span>
<a name="l00169"></a>00169 <span class="comment"> */</span>
<a name="l00170"></a>00170 <span class="preprocessor">#define ASN_OPAQUE_U64 (ASN_OPAQUE_TAG2 + ASN_APP_U64)</span>
<a name="l00171"></a>00171 <span class="preprocessor"></span> <span class="comment">/*</span>
<a name="l00172"></a>00172 <span class="comment"> * max size of BER encoding of Unsigned64 </span>
<a name="l00173"></a>00173 <span class="comment"> */</span>
<a name="l00174"></a>00174 <span class="preprocessor">#define ASN_OPAQUE_U64_MX_BER_LEN 12</span>
<a name="l00175"></a>00175 <span class="preprocessor"></span>
<a name="l00176"></a>00176 <span class="preprocessor">#endif </span><span class="comment">/* NETSNMP_WITH_OPAQUE_SPECIAL_TYPES */</span>
<a name="l00177"></a>00177
<a name="l00178"></a>00178
<a name="l00179"></a>00179 <span class="preprocessor">#define ASN_PRIV_INCL_RANGE (ASN_PRIVATE | 2)</span>
<a name="l00180"></a>00180 <span class="preprocessor"></span><span class="preprocessor">#define ASN_PRIV_EXCL_RANGE (ASN_PRIVATE | 3)</span>
<a name="l00181"></a>00181 <span class="preprocessor"></span><span class="preprocessor">#define ASN_PRIV_DELEGATED (ASN_PRIVATE | 5)</span>
<a name="l00182"></a>00182 <span class="preprocessor"></span><span class="preprocessor">#define ASN_PRIV_IMPLIED_OCTET_STR (ASN_PRIVATE | ASN_OCTET_STR) </span><span class="comment">/* 4 */</span>
<a name="l00183"></a>00183 <span class="preprocessor">#define ASN_PRIV_IMPLIED_OBJECT_ID (ASN_PRIVATE | ASN_OBJECT_ID) </span><span class="comment">/* 6 */</span>
<a name="l00184"></a>00184 <span class="preprocessor">#define ASN_PRIV_RETRY (ASN_PRIVATE | 7) </span><span class="comment">/* 199 */</span>
<a name="l00185"></a>00185 <span class="preprocessor">#define IS_DELEGATED(x) ((x) == ASN_PRIV_DELEGATED)</span>
<a name="l00186"></a>00186 <span class="preprocessor"></span>
<a name="l00187"></a>00187
<a name="l00188"></a>00188 <span class="keywordtype">int</span> asn_check_packet(u_char *, <span class="keywordtype">size_t</span>);
<a name="l00189"></a>00189 u_char *asn_parse_int(u_char *, <span class="keywordtype">size_t</span> *, u_char *, <span class="keywordtype">long</span> *,
<a name="l00190"></a>00190 <span class="keywordtype">size_t</span>);
<a name="l00191"></a>00191 u_char *asn_build_int(u_char *, <span class="keywordtype">size_t</span> *, u_char, <span class="keyword">const</span> <span class="keywordtype">long</span> *,
<a name="l00192"></a>00192 <span class="keywordtype">size_t</span>);
<a name="l00193"></a>00193 u_char *asn_parse_unsigned_int(u_char *, <span class="keywordtype">size_t</span> *, u_char *,
<a name="l00194"></a>00194 u_long *, <span class="keywordtype">size_t</span>);
<a name="l00195"></a>00195 u_char *asn_build_unsigned_int(u_char *, <span class="keywordtype">size_t</span> *, u_char,
<a name="l00196"></a>00196 <span class="keyword">const</span> u_long *, <span class="keywordtype">size_t</span>);
<a name="l00197"></a>00197 u_char *asn_parse_string(u_char *, <span class="keywordtype">size_t</span> *, u_char *,
<a name="l00198"></a>00198 u_char *, <span class="keywordtype">size_t</span> *);
<a name="l00199"></a>00199 u_char *asn_build_string(u_char *, <span class="keywordtype">size_t</span> *, u_char,
<a name="l00200"></a>00200 <span class="keyword">const</span> u_char *, <span class="keywordtype">size_t</span>);
<a name="l00201"></a>00201 u_char *asn_parse_header(u_char *, <span class="keywordtype">size_t</span> *, u_char *);
<a name="l00202"></a>00202 u_char *asn_parse_sequence(u_char *, <span class="keywordtype">size_t</span> *, u_char *, u_char expected_type, <span class="comment">/* must be this type */</span>
<a name="l00203"></a>00203 <span class="keyword">const</span> <span class="keywordtype">char</span> *estr); <span class="comment">/* error message prefix */</span>
<a name="l00204"></a>00204 u_char *asn_build_header(u_char *, <span class="keywordtype">size_t</span> *, u_char, <span class="keywordtype">size_t</span>);
<a name="l00205"></a>00205 u_char *asn_build_sequence(u_char *, <span class="keywordtype">size_t</span> *, u_char, <span class="keywordtype">size_t</span>);
<a name="l00206"></a>00206 u_char *asn_parse_length(u_char *, u_long *);
<a name="l00207"></a>00207 u_char *asn_build_length(u_char *, <span class="keywordtype">size_t</span> *, <span class="keywordtype">size_t</span>);
<a name="l00208"></a>00208 u_char *asn_parse_objid(u_char *, <span class="keywordtype">size_t</span> *, u_char *, oid *,
<a name="l00209"></a>00209 <span class="keywordtype">size_t</span> *);
<a name="l00210"></a>00210 u_char *asn_build_objid(u_char *, <span class="keywordtype">size_t</span> *, u_char, oid *,
<a name="l00211"></a>00211 <span class="keywordtype">size_t</span>);
<a name="l00212"></a>00212 u_char *asn_parse_null(u_char *, <span class="keywordtype">size_t</span> *, u_char *);
<a name="l00213"></a>00213 u_char *asn_build_null(u_char *, <span class="keywordtype">size_t</span> *, u_char);
<a name="l00214"></a>00214 u_char *asn_parse_bitstring(u_char *, <span class="keywordtype">size_t</span> *, u_char *,
<a name="l00215"></a>00215 u_char *, <span class="keywordtype">size_t</span> *);
<a name="l00216"></a>00216 u_char *asn_build_bitstring(u_char *, <span class="keywordtype">size_t</span> *, u_char,
<a name="l00217"></a>00217 <span class="keyword">const</span> u_char *, <span class="keywordtype">size_t</span>);
<a name="l00218"></a>00218 u_char *asn_parse_unsigned_int64(u_char *, <span class="keywordtype">size_t</span> *, u_char *,
<a name="l00219"></a>00219 <span class="keyword">struct</span> <a class="code" href="structcounter64.html">counter64</a> *, <span class="keywordtype">size_t</span>);
<a name="l00220"></a>00220 u_char *asn_build_unsigned_int64(u_char *, <span class="keywordtype">size_t</span> *, u_char,
<a name="l00221"></a>00221 <span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structcounter64.html">counter64</a> *, <span class="keywordtype">size_t</span>);
<a name="l00222"></a>00222 u_char *asn_parse_signed_int64(u_char *, <span class="keywordtype">size_t</span> *, u_char *,
<a name="l00223"></a>00223 <span class="keyword">struct</span> <a class="code" href="structcounter64.html">counter64</a> *, <span class="keywordtype">size_t</span>);
<a name="l00224"></a>00224 u_char *asn_build_signed_int64(u_char *, <span class="keywordtype">size_t</span> *, u_char,
<a name="l00225"></a>00225 <span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structcounter64.html">counter64</a> *, <span class="keywordtype">size_t</span>);
<a name="l00226"></a>00226 u_char *asn_build_float(u_char *, <span class="keywordtype">size_t</span> *, u_char, <span class="keyword">const</span> <span class="keywordtype">float</span> *,
<a name="l00227"></a>00227 <span class="keywordtype">size_t</span>);
<a name="l00228"></a>00228 u_char *asn_parse_float(u_char *, <span class="keywordtype">size_t</span> *, u_char *, <span class="keywordtype">float</span> *,
<a name="l00229"></a>00229 <span class="keywordtype">size_t</span>);
<a name="l00230"></a>00230 u_char *asn_build_double(u_char *, <span class="keywordtype">size_t</span> *, u_char, <span class="keyword">const</span> <span class="keywordtype">double</span> *,
<a name="l00231"></a>00231 <span class="keywordtype">size_t</span>);
<a name="l00232"></a>00232 u_char *asn_parse_double(u_char *, <span class="keywordtype">size_t</span> *, u_char *,
<a name="l00233"></a>00233 <span class="keywordtype">double</span> *, <span class="keywordtype">size_t</span>);
<a name="l00234"></a>00234
<a name="l00235"></a>00235 <span class="preprocessor">#ifdef NETSNMP_USE_REVERSE_ASNENCODING</span>
<a name="l00236"></a>00236 <span class="preprocessor"></span>
<a name="l00237"></a>00237 <span class="comment">/*</span>
<a name="l00238"></a>00238 <span class="comment"> * Re-allocator function for below. </span>
<a name="l00239"></a>00239 <span class="comment"> */</span>
<a name="l00240"></a>00240
<a name="l00241"></a>00241 <span class="keywordtype">int</span> asn_realloc(u_char **, <span class="keywordtype">size_t</span> *);
<a name="l00242"></a>00242
<a name="l00243"></a>00243 <span class="comment">/*</span>
<a name="l00244"></a>00244 <span class="comment"> * Re-allocating reverse ASN.1 encoder functions. Synopsis:</span>
<a name="l00245"></a>00245 <span class="comment"> * </span>
<a name="l00246"></a>00246 <span class="comment"> * u_char *buf = (u_char*)malloc(100);</span>
<a name="l00247"></a>00247 <span class="comment"> * u_char type = (ASN_UNIVERSAL | ASN_PRIMITIVE | ASN_INTEGER);</span>
<a name="l00248"></a>00248 <span class="comment"> * size_t buf_len = 100, offset = 0;</span>
<a name="l00249"></a>00249 <span class="comment"> * long data = 12345;</span>
<a name="l00250"></a>00250 <span class="comment"> * int allow_realloc = 1;</span>
<a name="l00251"></a>00251 <span class="comment"> * </span>
<a name="l00252"></a>00252 <span class="comment"> * if (asn_realloc_rbuild_int(&buf, &buf_len, &offset, allow_realloc,</span>
<a name="l00253"></a>00253 <span class="comment"> * type, &data, sizeof(long)) == 0) {</span>
<a name="l00254"></a>00254 <span class="comment"> * error;</span>
<a name="l00255"></a>00255 <span class="comment"> * }</span>
<a name="l00256"></a>00256 <span class="comment"> * </span>
<a name="l00257"></a>00257 <span class="comment"> * NOTE WELL: after calling one of these functions with allow_realloc</span>
<a name="l00258"></a>00258 <span class="comment"> * non-zero, buf might have moved, buf_len might have grown and</span>
<a name="l00259"></a>00259 <span class="comment"> * offset will have increased by the size of the encoded data.</span>
<a name="l00260"></a>00260 <span class="comment"> * You should **NEVER** do something like this:</span>
<a name="l00261"></a>00261 <span class="comment"> * </span>
<a name="l00262"></a>00262 <span class="comment"> * u_char *buf = (u_char *)malloc(100), *ptr;</span>
<a name="l00263"></a>00263 <span class="comment"> * u_char type = (ASN_UNIVERSAL | ASN_PRIMITIVE | ASN_INTEGER);</span>
<a name="l00264"></a>00264 <span class="comment"> * size_t buf_len = 100, offset = 0;</span>
<a name="l00265"></a>00265 <span class="comment"> * long data1 = 1234, data2 = 5678;</span>
<a name="l00266"></a>00266 <span class="comment"> * int rc = 0, allow_realloc = 1;</span>
<a name="l00267"></a>00267 <span class="comment"> * </span>
<a name="l00268"></a>00268 <span class="comment"> * rc = asn_realloc_rbuild_int(&buf, &buf_len, &offset, allow_realloc,</span>
<a name="l00269"></a>00269 <span class="comment"> * type, &data1, sizeof(long));</span>
<a name="l00270"></a>00270 <span class="comment"> * ptr = buf[buf_len - offset]; / * points at encoding of data1 * /</span>
<a name="l00271"></a>00271 <span class="comment"> * if (rc == 0) {</span>
<a name="l00272"></a>00272 <span class="comment"> * error;</span>
<a name="l00273"></a>00273 <span class="comment"> * }</span>
<a name="l00274"></a>00274 <span class="comment"> * rc = asn_realloc_rbuild_int(&buf, &buf_len, &offset, allow_realloc,</span>
<a name="l00275"></a>00275 <span class="comment"> * type, &data2, sizeof(long));</span>
<a name="l00276"></a>00276 <span class="comment"> * make use of ptr here;</span>
<a name="l00277"></a>00277 <span class="comment"> * </span>
<a name="l00278"></a>00278 <span class="comment"> * </span>
<a name="l00279"></a>00279 <span class="comment"> * ptr is **INVALID** at this point. In general, you should store the</span>
<a name="l00280"></a>00280 <span class="comment"> * offset value and compute pointers when you need them:</span>
<a name="l00281"></a>00281 <span class="comment"> * </span>
<a name="l00282"></a>00282 <span class="comment"> * </span>
<a name="l00283"></a>00283 <span class="comment"> * </span>
<a name="l00284"></a>00284 <span class="comment"> * u_char *buf = (u_char *)malloc(100), *ptr;</span>
<a name="l00285"></a>00285 <span class="comment"> * u_char type = (ASN_UNIVERSAL | ASN_PRIMITIVE | ASN_INTEGER);</span>
<a name="l00286"></a>00286 <span class="comment"> * size_t buf_len = 100, offset = 0, ptr_offset;</span>
<a name="l00287"></a>00287 <span class="comment"> * long data1 = 1234, data2 = 5678;</span>
<a name="l00288"></a>00288 <span class="comment"> * int rc = 0, allow_realloc = 1;</span>
<a name="l00289"></a>00289 <span class="comment"> * </span>
<a name="l00290"></a>00290 <span class="comment"> * rc = asn_realloc_rbuild_int(&buf, &buf_len, &offset, allow_realloc,</span>
<a name="l00291"></a>00291 <span class="comment"> * type, &data1, sizeof(long));</span>
<a name="l00292"></a>00292 <span class="comment"> * ptr_offset = offset;</span>
<a name="l00293"></a>00293 <span class="comment"> * if (rc == 0) {</span>
<a name="l00294"></a>00294 <span class="comment"> * error;</span>
<a name="l00295"></a>00295 <span class="comment"> * }</span>
<a name="l00296"></a>00296 <span class="comment"> * rc = asn_realloc_rbuild_int(&buf, &buf_len, &offset, allow_realloc,</span>
<a name="l00297"></a>00297 <span class="comment"> * type, &data2, sizeof(long));</span>
<a name="l00298"></a>00298 <span class="comment"> * ptr = buf + buf_len - ptr_offset</span>
<a name="l00299"></a>00299 <span class="comment"> * make use of ptr here;</span>
<a name="l00300"></a>00300 <span class="comment"> * </span>
<a name="l00301"></a>00301 <span class="comment"> * </span>
<a name="l00302"></a>00302 <span class="comment"> * </span>
<a name="l00303"></a>00303 <span class="comment"> * Here, you can see that ptr will be a valid pointer even if the block of</span>
<a name="l00304"></a>00304 <span class="comment"> * memory has been moved, as it may well have been. Plenty of examples of</span>
<a name="l00305"></a>00305 <span class="comment"> * usage all over asn1.c, snmp_api.c, snmpusm.c.</span>
<a name="l00306"></a>00306 <span class="comment"> * </span>
<a name="l00307"></a>00307 <span class="comment"> * The other thing you should **NEVER** do is to pass a pointer to a buffer</span>
<a name="l00308"></a>00308 <span class="comment"> * on the stack as the first argument when allow_realloc is non-zero, unless</span>
<a name="l00309"></a>00309 <span class="comment"> * you really know what you are doing and your machine/compiler allows you to</span>
<a name="l00310"></a>00310 <span class="comment"> * free non-heap memory. There are rumours that such things exist, but many</span>
<a name="l00311"></a>00311 <span class="comment"> * consider them no more than the wild tales of a fool.</span>
<a name="l00312"></a>00312 <span class="comment"> * </span>
<a name="l00313"></a>00313 <span class="comment"> * Of course, you can pass allow_realloc as zero, to indicate that you do not</span>
<a name="l00314"></a>00314 <span class="comment"> * wish the packet buffer to be reallocated for some reason; perhaps because</span>
<a name="l00315"></a>00315 <span class="comment"> * it is on the stack. This may be useful to emulate the functionality of</span>
<a name="l00316"></a>00316 <span class="comment"> * the old API:</span>
<a name="l00317"></a>00317 <span class="comment"> * </span>
<a name="l00318"></a>00318 <span class="comment"> * u_char my_static_buffer[100], *cp = NULL;</span>
<a name="l00319"></a>00319 <span class="comment"> * size_t my_static_buffer_len = 100;</span>
<a name="l00320"></a>00320 <span class="comment"> * float my_pi = (float)22/(float)7;</span>
<a name="l00321"></a>00321 <span class="comment"> * </span>
<a name="l00322"></a>00322 <span class="comment"> * cp = asn_rbuild_float(my_static_buffer, &my_static_buffer_len,</span>
<a name="l00323"></a>00323 <span class="comment"> * ASN_OPAQUE_FLOAT, &my_pi, sizeof(float));</span>
<a name="l00324"></a>00324 <span class="comment"> * if (cp == NULL) {</span>
<a name="l00325"></a>00325 <span class="comment"> * error;</span>
<a name="l00326"></a>00326 <span class="comment"> * }</span>
<a name="l00327"></a>00327 <span class="comment"> * </span>
<a name="l00328"></a>00328 <span class="comment"> * </span>
<a name="l00329"></a>00329 <span class="comment"> * IS EQUIVALENT TO:</span>
<a name="l00330"></a>00330 <span class="comment"> * </span>
<a name="l00331"></a>00331 <span class="comment"> * </span>
<a name="l00332"></a>00332 <span class="comment"> * u_char my_static_buffer[100];</span>
<a name="l00333"></a>00333 <span class="comment"> * size_t my_static_buffer_len = 100, my_offset = 0;</span>
<a name="l00334"></a>00334 <span class="comment"> * float my_pi = (float)22/(float)7;</span>
<a name="l00335"></a>00335 <span class="comment"> * int rc = 0;</span>
<a name="l00336"></a>00336 <span class="comment"> * </span>
<a name="l00337"></a>00337 <span class="comment"> * rc = asn_realloc_rbuild_float(&my_static_buffer, &my_static_buffer_len,</span>
<a name="l00338"></a>00338 <span class="comment"> * &my_offset, 0,</span>
<a name="l00339"></a>00339 <span class="comment"> * ASN_OPAQUE_FLOAT, &my_pi, sizeof(float));</span>
<a name="l00340"></a>00340 <span class="comment"> * if (rc == 0) {</span>
<a name="l00341"></a>00341 <span class="comment"> * error;</span>
<a name="l00342"></a>00342 <span class="comment"> * }</span>
<a name="l00343"></a>00343 <span class="comment"> * </span>
<a name="l00344"></a>00344 <span class="comment"> * </span>
<a name="l00345"></a>00345 <span class="comment"> */</span>
<a name="l00346"></a>00346
<a name="l00347"></a>00347
<a name="l00348"></a>00348 <span class="keywordtype">int</span> asn_realloc_rbuild_int(u_char ** pkt, <span class="keywordtype">size_t</span> * pkt_len,
<a name="l00349"></a>00349 <span class="keywordtype">size_t</span> * offset,
<a name="l00350"></a>00350 <span class="keywordtype">int</span> allow_realloc, u_char type,
<a name="l00351"></a>00351 <span class="keyword">const</span> <span class="keywordtype">long</span> *data, <span class="keywordtype">size_t</span> data_size);
<a name="l00352"></a>00352
<a name="l00353"></a>00353 <span class="keywordtype">int</span> asn_realloc_rbuild_string(u_char ** pkt,
<a name="l00354"></a>00354 <span class="keywordtype">size_t</span> * pkt_len,
<a name="l00355"></a>00355 <span class="keywordtype">size_t</span> * offset,
<a name="l00356"></a>00356 <span class="keywordtype">int</span> allow_realloc,
<a name="l00357"></a>00357 u_char type,
<a name="l00358"></a>00358 <span class="keyword">const</span> u_char * data,
<a name="l00359"></a>00359 <span class="keywordtype">size_t</span> data_size);
<a name="l00360"></a>00360
<a name="l00361"></a>00361 <span class="keywordtype">int</span> asn_realloc_rbuild_unsigned_int(u_char ** pkt,
<a name="l00362"></a>00362 <span class="keywordtype">size_t</span> * pkt_len,
<a name="l00363"></a>00363 <span class="keywordtype">size_t</span> * offset,
<a name="l00364"></a>00364 <span class="keywordtype">int</span> allow_realloc,
<a name="l00365"></a>00365 u_char type,
<a name="l00366"></a>00366 <span class="keyword">const</span> u_long * data,
<a name="l00367"></a>00367 <span class="keywordtype">size_t</span> data_size);
<a name="l00368"></a>00368
<a name="l00369"></a>00369 <span class="keywordtype">int</span> asn_realloc_rbuild_header(u_char ** pkt,
<a name="l00370"></a>00370 <span class="keywordtype">size_t</span> * pkt_len,
<a name="l00371"></a>00371 <span class="keywordtype">size_t</span> * offset,
<a name="l00372"></a>00372 <span class="keywordtype">int</span> allow_realloc,
<a name="l00373"></a>00373 u_char type,
<a name="l00374"></a>00374 <span class="keywordtype">size_t</span> data_size);
<a name="l00375"></a>00375
<a name="l00376"></a>00376 <span class="keywordtype">int</span> asn_realloc_rbuild_sequence(u_char ** pkt,
<a name="l00377"></a>00377 <span class="keywordtype">size_t</span> * pkt_len,
<a name="l00378"></a>00378 <span class="keywordtype">size_t</span> * offset,
<a name="l00379"></a>00379 <span class="keywordtype">int</span> allow_realloc,
<a name="l00380"></a>00380 u_char type,
<a name="l00381"></a>00381 <span class="keywordtype">size_t</span> data_size);
<a name="l00382"></a>00382
<a name="l00383"></a>00383 <span class="keywordtype">int</span> asn_realloc_rbuild_length(u_char ** pkt,
<a name="l00384"></a>00384 <span class="keywordtype">size_t</span> * pkt_len,
<a name="l00385"></a>00385 <span class="keywordtype">size_t</span> * offset,
<a name="l00386"></a>00386 <span class="keywordtype">int</span> allow_realloc,
<a name="l00387"></a>00387 <span class="keywordtype">size_t</span> data_size);
<a name="l00388"></a>00388
<a name="l00389"></a>00389 <span class="keywordtype">int</span> asn_realloc_rbuild_objid(u_char ** pkt,
<a name="l00390"></a>00390 <span class="keywordtype">size_t</span> * pkt_len,
<a name="l00391"></a>00391 <span class="keywordtype">size_t</span> * offset,
<a name="l00392"></a>00392 <span class="keywordtype">int</span> allow_realloc,
<a name="l00393"></a>00393 u_char type, <span class="keyword">const</span> oid *,
<a name="l00394"></a>00394 <span class="keywordtype">size_t</span>);
<a name="l00395"></a>00395
<a name="l00396"></a>00396 <span class="keywordtype">int</span> asn_realloc_rbuild_null(u_char ** pkt,
<a name="l00397"></a>00397 <span class="keywordtype">size_t</span> * pkt_len,
<a name="l00398"></a>00398 <span class="keywordtype">size_t</span> * offset,
<a name="l00399"></a>00399 <span class="keywordtype">int</span> allow_realloc,
<a name="l00400"></a>00400 u_char type);
<a name="l00401"></a>00401
<a name="l00402"></a>00402 <span class="keywordtype">int</span> asn_realloc_rbuild_bitstring(u_char ** pkt,
<a name="l00403"></a>00403 <span class="keywordtype">size_t</span> * pkt_len,
<a name="l00404"></a>00404 <span class="keywordtype">size_t</span> * offset,
<a name="l00405"></a>00405 <span class="keywordtype">int</span> allow_realloc,
<a name="l00406"></a>00406 u_char type,
<a name="l00407"></a>00407 <span class="keyword">const</span> u_char * data,
<a name="l00408"></a>00408 <span class="keywordtype">size_t</span> data_size);
<a name="l00409"></a>00409
<a name="l00410"></a>00410 <span class="keywordtype">int</span> asn_realloc_rbuild_unsigned_int64(u_char ** pkt,
<a name="l00411"></a>00411 <span class="keywordtype">size_t</span> * pkt_len,
<a name="l00412"></a>00412 <span class="keywordtype">size_t</span> * offset,
<a name="l00413"></a>00413 <span class="keywordtype">int</span> allow_realloc,
<a name="l00414"></a>00414 u_char type,
<a name="l00415"></a>00415 <span class="keyword">struct</span> <a class="code" href="structcounter64.html">counter64</a>
<a name="l00416"></a>00416 <span class="keyword">const</span> *data, <span class="keywordtype">size_t</span>);
<a name="l00417"></a>00417
<a name="l00418"></a>00418 <span class="keywordtype">int</span> asn_realloc_rbuild_signed_int64(u_char ** pkt,
<a name="l00419"></a>00419 <span class="keywordtype">size_t</span> * pkt_len,
<a name="l00420"></a>00420 <span class="keywordtype">size_t</span> * offset,
<a name="l00421"></a>00421 <span class="keywordtype">int</span> allow_realloc,
<a name="l00422"></a>00422 u_char type,
<a name="l00423"></a>00423 <span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structcounter64.html">counter64</a> *data,
<a name="l00424"></a>00424 <span class="keywordtype">size_t</span>);
<a name="l00425"></a>00425
<a name="l00426"></a>00426 <span class="keywordtype">int</span> asn_realloc_rbuild_float(u_char ** pkt,
<a name="l00427"></a>00427 <span class="keywordtype">size_t</span> * pkt_len,
<a name="l00428"></a>00428 <span class="keywordtype">size_t</span> * offset,
<a name="l00429"></a>00429 <span class="keywordtype">int</span> allow_realloc,
<a name="l00430"></a>00430 u_char type, <span class="keyword">const</span> <span class="keywordtype">float</span> *data,
<a name="l00431"></a>00431 <span class="keywordtype">size_t</span> data_size);
<a name="l00432"></a>00432
<a name="l00433"></a>00433 <span class="keywordtype">int</span> asn_realloc_rbuild_double(u_char ** pkt,
<a name="l00434"></a>00434 <span class="keywordtype">size_t</span> * pkt_len,
<a name="l00435"></a>00435 <span class="keywordtype">size_t</span> * offset,
<a name="l00436"></a>00436 <span class="keywordtype">int</span> allow_realloc,
<a name="l00437"></a>00437 u_char type, <span class="keyword">const</span> <span class="keywordtype">double</span> *data,
<a name="l00438"></a>00438 <span class="keywordtype">size_t</span> data_size);
<a name="l00439"></a>00439 <span class="preprocessor">#endif</span>
<a name="l00440"></a>00440 <span class="preprocessor"></span>
<a name="l00441"></a>00441 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00442"></a>00442 <span class="preprocessor"></span>}
<a name="l00443"></a>00443 <span class="preprocessor">#endif</span>
<a name="l00444"></a>00444 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* ASN1_H */</span>
</pre></div></div><!-- contents -->
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