Don't assume that vp->strvalue is the printed form of the IP,
[freeradius.git] / src / lib / print.c
1 /*
2  * print.c      Routines to print stuff.
3  *
4  * Version:     $Id$
5  *
6  *   This library is free software; you can redistribute it and/or
7  *   modify it under the terms of the GNU Lesser General Public
8  *   License as published by the Free Software Foundation; either
9  *   version 2.1 of the License, or (at your option) any later version.
10  *
11  *   This library is distributed in the hope that it will be useful,
12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  *   Lesser General Public License for more details.
15  *
16  *   You should have received a copy of the GNU Lesser General Public
17  *   License along with this library; if not, write to the Free Software
18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
19  *
20  * Copyright 2000  The FreeRADIUS server project
21  */
22
23 static const char rcsid[] = "$Id$";
24
25 #include        "autoconf.h"
26
27 #include        <stdio.h>
28 #include        <stdlib.h>
29 #include        <sys/types.h>
30 #include        <ctype.h>
31 #include        <string.h>
32
33 #include        "libradius.h"
34
35 /*
36  *      Convert a string to something printable.
37  *      The output string has to be _at least_ 4x the size
38  *      of the input string!
39  */
40 void librad_safeprint(char *in, int inlen, char *out, int outlen)
41 {
42         unsigned char   *str = (unsigned char *)in;
43         int             done = 0;
44         int             sp = 0;
45
46         if (inlen < 0) inlen = strlen(in);
47
48         while (inlen-- > 0 && (done + 3) < outlen) {
49                 /*
50                  *      Hack: never print trailing zero.
51                  *      Some clients send strings with an off-by-one
52                  *      length (confused with strings in C).
53                  */
54                 if (inlen == 0 && *str == 0)
55                         break;
56
57                 sp = 0;
58
59                 switch (*str) {
60                         case '\\':
61                                 sp = '\\';
62                                 break;
63                         case '\r':
64                                 sp = 'r';
65                                 break;
66                         case '\n':
67                                 sp = 'n';
68                                 break;
69                         case '\t':
70                                 sp = 't';
71                                 break;
72                         default:
73                                 if (*str < 32 || (*str >= 128)){
74                                         snprintf(out, outlen, "\\%03o", *str);
75                                         done += 4;
76                                         out  += 4;
77                                         outlen -= 4;
78                                 } else {
79                                         *out++ = *str;
80                                         outlen--;
81                                         done++;
82                                 }
83                 }
84                 if (sp) {
85                         *out++ = '\\';
86                         *out++ = sp;
87                         outlen -= 2;
88                         done += 2;
89                 }
90                 str++;
91         }
92         *out = 0;
93 }
94
95
96 /*
97  *  Print one value into a string.
98  *  delimitst will define if strings and dates will be delimited by '"'
99  */
100 int vp_prints_value(char * out, int outlen, VALUE_PAIR *vp, int delimitst)
101 {
102         DICT_VALUE  *v;
103         char        buf[1024];
104         char        *a;
105         time_t      t;
106         struct tm   s_tm;
107
108         out[0] = 0;
109         if (!vp) return 0;
110
111         switch (vp->type) {
112                 case PW_TYPE_STRING:
113                         /*
114                          *  NAS-Port may have multiple integer values?
115                          *  This is an internal server extension...
116                          */
117                         if (vp->attribute == PW_NAS_PORT)
118                                 a = (char *)vp->strvalue;
119                         else {
120                                 if (delimitst && vp->flags.has_tag) {
121                                         /* Tagged attribute: print delimter and ignore tag */
122                                         buf[0] = '"';
123                                         librad_safeprint((char *)(vp->strvalue),
124                                                          vp->length, buf + 1, sizeof(buf) - 2);
125                                         strcat(buf, "\"");
126                                 } else if (delimitst) {
127                                         /* Non-tagged attribute: print delimter */
128                                         buf[0] = '"';
129                                         librad_safeprint((char *)vp->strvalue,
130                                                          vp->length, buf + 1, sizeof(buf) - 2);
131                                         strcat(buf, "\"");
132                                 } else {
133                                         /* Non-tagged attribute: no delimiter */
134                                         librad_safeprint((char *)vp->strvalue,
135                                                          vp->length, buf, sizeof(buf));
136                                 }
137                                 a = buf;
138                         }
139                         break;
140                 case PW_TYPE_INTEGER:
141                         if ( vp->flags.has_tag ) {
142                                 /* Attribute value has a tag, need to ignore it */
143                                 if ((v = dict_valbyattr(vp->attribute, (vp->lvalue & 0xffffff)))
144                                     != NULL)
145                                         a = v->name;
146                                 else {
147                                         snprintf(buf, sizeof(buf), "%u", (vp->lvalue & 0xffffff));
148                                         a = buf;
149                                 }
150                         } else {
151                                 /* Normal, non-tagged attribute */
152                                 if ((v = dict_valbyattr(vp->attribute, vp->lvalue))
153                                     != NULL)
154                                         a = v->name;
155                                 else {
156                                         snprintf(buf, sizeof(buf), "%u", vp->lvalue);
157                                         a = buf;
158                                 }
159                         }
160                         break;
161                 case PW_TYPE_DATE:
162                         t = vp->lvalue;
163                         if (delimitst) {
164                           strftime(buf, sizeof(buf), "\"%b %e %Y %H:%M:%S %Z\"",
165                                    localtime_r(&t, &s_tm));
166                         } else {
167                           strftime(buf, sizeof(buf), "%b %e %Y %H:%M:%S %Z",
168                                    localtime_r(&t, &s_tm));
169                         }
170                         a = buf;
171                         break;
172                 case PW_TYPE_IPADDR:
173                         a = ip_ntoa(buf, vp->lvalue);
174                         break;
175                 case PW_TYPE_ABINARY:
176 #ifdef ASCEND_BINARY
177                   a = buf;
178                   print_abinary(vp, (unsigned char *)buf, sizeof(buf));
179                   break;
180 #else
181                   /* FALL THROUGH */
182 #endif
183                 case PW_TYPE_OCTETS:
184                   strcpy(buf, "0x");
185                   a = buf + 2;
186                   for (t = 0; t < vp->length; t++) {
187                         sprintf(a, "%02x", vp->strvalue[t]);
188                         a += 2;
189                   }
190                   a = buf;
191                   break;
192
193                 case PW_TYPE_IFID:
194                         a = ifid_ntoa(buf, sizeof(buf), vp->strvalue);
195                         break;
196
197                 case PW_TYPE_IPV6ADDR:
198                         a = ipv6_ntoa(buf, sizeof(buf), vp->strvalue);
199                         break;
200
201                 default:
202                         a = 0;
203                         break;
204         }
205         strNcpy(out, a?a:"UNKNOWN-TYPE", outlen);
206
207         return strlen(out);
208 }
209
210 /*
211  *  This is a hack, and has to be kept in sync with tokens.h
212  */
213 static const char *vp_tokens[] = {
214   "?",                          /* T_INVALID */
215   "EOL",                        /* T_EOL */
216   "{",
217   "}",
218   "(",
219   ")",
220   ",",
221   ";",
222   "+=",
223   "-=",
224   ":=",
225   "=",
226   "!=",
227   ">=",
228   ">",
229   "<=",
230   "<",
231   "=~",
232   "!~",
233   "=*",
234   "!*",
235   "==",
236   "#",
237   "<BARE-WORD>",
238   "<\"STRING\">",
239   "<'STRING'>",
240   "<`STRING`>"
241 };
242
243
244 /*
245  *      Print one attribute and value into a string.
246  */
247 int vp_prints(char *out, int outlen, VALUE_PAIR *vp)
248 {
249         int             len;
250         const char      *token = NULL;
251
252         out[0] = 0;
253         if (!vp) return 0;
254
255         if (strlen(vp->name) + 3 > (size_t)outlen) {
256                 return 0;
257         }
258
259         if ((vp->operator > T_INVALID) &&
260             (vp->operator < T_TOKEN_LAST)) {
261                 token = vp_tokens[vp->operator];
262         } else {
263                 token = "<INVALID-TOKEN>";
264         }
265
266         if( vp->flags.has_tag ) {
267
268                 snprintf(out, outlen, "%s:%d %s ", vp->name, vp->flags.tag,
269                          token);
270
271                 len = strlen(out);
272                 vp_prints_value(out + len, outlen - len, vp, 1);
273
274         } else {
275
276                 snprintf(out, outlen, "%s %s ", vp->name, token);
277                 len = strlen(out);
278                 vp_prints_value(out + len, outlen - len, vp, 1);
279
280         }
281
282         return strlen(out);
283 }
284
285
286 /*
287  *      Print one attribute and value.
288  */
289 void vp_print(FILE *fp, VALUE_PAIR *vp)
290 {
291         char    buf[1024];
292
293         vp_prints(buf, sizeof(buf), vp);
294         fputs(buf, fp);
295 }
296
297
298 /*
299  *      Print a whole list of attributes, indented by a TAB
300  *      and with a newline at the end.
301  */
302 void vp_printlist(FILE *fp, VALUE_PAIR *vp)
303 {
304         for (; vp; vp = vp->next) {
305                 fprintf(fp, "\t");
306                 vp_print(fp, vp);
307                 fprintf(fp, "\n");
308         }
309 }
310