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bf_buff.c

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1/* $OpenBSD: bf_buff.c,v 1.25 2018/05/01 13:29:09 tb Exp $ */-
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)-
3 * All rights reserved.-
4 *-
5 * This package is an SSL implementation written-
6 * by Eric Young (eay@cryptsoft.com).-
7 * The implementation was written so as to conform with Netscapes SSL.-
8 *-
9 * This library is free for commercial and non-commercial use as long as-
10 * the following conditions are aheared to. The following conditions-
11 * apply to all code found in this distribution, be it the RC4, RSA,-
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation-
13 * included with this distribution is covered by the same copyright terms-
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).-
15 *-
16 * Copyright remains Eric Young's, and as such any Copyright notices in-
17 * the code are not to be removed.-
18 * If this package is used in a product, Eric Young should be given attribution-
19 * as the author of the parts of the library used.-
20 * This can be in the form of a textual message at program startup or-
21 * in documentation (online or textual) provided with the package.-
22 *-
23 * Redistribution and use in source and binary forms, with or without-
24 * modification, are permitted provided that the following conditions-
25 * are met:-
26 * 1. Redistributions of source code must retain the copyright-
27 * notice, this list of conditions and the following disclaimer.-
28 * 2. Redistributions in binary form must reproduce the above copyright-
29 * notice, this list of conditions and the following disclaimer in the-
30 * documentation and/or other materials provided with the distribution.-
31 * 3. All advertising materials mentioning features or use of this software-
32 * must display the following acknowledgement:-
33 * "This product includes cryptographic software written by-
34 * Eric Young (eay@cryptsoft.com)"-
35 * The word 'cryptographic' can be left out if the rouines from the library-
36 * being used are not cryptographic related :-).-
37 * 4. If you include any Windows specific code (or a derivative thereof) from-
38 * the apps directory (application code) you must include an acknowledgement:-
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"-
40 *-
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND-
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE-
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE-
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE-
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL-
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS-
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)-
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT-
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY-
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF-
51 * SUCH DAMAGE.-
52 *-
53 * The licence and distribution terms for any publically available version or-
54 * derivative of this code cannot be changed. i.e. this code cannot simply be-
55 * copied and put under another distribution licence-
56 * [including the GNU Public Licence.]-
57 */-
58-
59#include <errno.h>-
60#include <stdio.h>-
61#include <string.h>-
62-
63#include <openssl/bio.h>-
64#include <openssl/err.h>-
65-
66static int buffer_write(BIO *h, const char *buf, int num);-
67static int buffer_read(BIO *h, char *buf, int size);-
68static int buffer_puts(BIO *h, const char *str);-
69static int buffer_gets(BIO *h, char *str, int size);-
70static long buffer_ctrl(BIO *h, int cmd, long arg1, void *arg2);-
71static int buffer_new(BIO *h);-
72static int buffer_free(BIO *data);-
73static long buffer_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp);-
74#define DEFAULT_BUFFER_SIZE 4096-
75-
76static const BIO_METHOD methods_buffer = {-
77 .type = BIO_TYPE_BUFFER,-
78 .name = "buffer",-
79 .bwrite = buffer_write,-
80 .bread = buffer_read,-
81 .bputs = buffer_puts,-
82 .bgets = buffer_gets,-
83 .ctrl = buffer_ctrl,-
84 .create = buffer_new,-
85 .destroy = buffer_free,-
86 .callback_ctrl = buffer_callback_ctrl-
87};-
88-
89const BIO_METHOD *-
90BIO_f_buffer(void)-
91{-
92 return (&methods_buffer);
executed 142 times by 5 tests: return (&methods_buffer);
Executed by:
  • clienttest
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
142
93}-
94-
95static int-
96buffer_new(BIO *bi)-
97{-
98 BIO_F_BUFFER_CTX *ctx;-
99-
100 ctx = malloc(sizeof(BIO_F_BUFFER_CTX));-
101 if (ctx == NULL)
ctx == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 142 times by 5 tests
Evaluated by:
  • clienttest
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
0-142
102 return (0);
never executed: return (0);
0
103 ctx->ibuf = malloc(DEFAULT_BUFFER_SIZE);-
104 if (ctx->ibuf == NULL) {
ctx->ibuf == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 142 times by 5 tests
Evaluated by:
  • clienttest
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
0-142
105 free(ctx);-
106 return (0);
never executed: return (0);
0
107 }-
108 ctx->obuf = malloc(DEFAULT_BUFFER_SIZE);-
109 if (ctx->obuf == NULL) {
ctx->obuf == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 142 times by 5 tests
Evaluated by:
  • clienttest
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
0-142
110 free(ctx->ibuf);-
111 free(ctx);-
112 return (0);
never executed: return (0);
0
113 }-
114 ctx->ibuf_size = DEFAULT_BUFFER_SIZE;-
115 ctx->obuf_size = DEFAULT_BUFFER_SIZE;-
116 ctx->ibuf_len = 0;-
117 ctx->ibuf_off = 0;-
118 ctx->obuf_len = 0;-
119 ctx->obuf_off = 0;-
120-
121 bi->init = 1;-
122 bi->ptr = (char *)ctx;-
123 bi->flags = 0;-
124 return (1);
executed 142 times by 5 tests: return (1);
Executed by:
  • clienttest
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
142
125}-
126-
127static int-
128buffer_free(BIO *a)-
129{-
130 BIO_F_BUFFER_CTX *b;-
131-
132 if (a == NULL)
a == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 142 times by 5 tests
Evaluated by:
  • clienttest
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
0-142
133 return (0);
never executed: return (0);
0
134 b = (BIO_F_BUFFER_CTX *)a->ptr;-
135 free(b->ibuf);-
136 free(b->obuf);-
137 free(a->ptr);-
138 a->ptr = NULL;-
139 a->init = 0;-
140 a->flags = 0;-
141 return (1);
executed 142 times by 5 tests: return (1);
Executed by:
  • clienttest
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
142
142}-
143-
144static int-
145buffer_read(BIO *b, char *out, int outl)-
146{-
147 int i, num = 0;-
148 BIO_F_BUFFER_CTX *ctx;-
149-
150 if (out == NULL)
out == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
151 return (0);
never executed: return (0);
0
152 ctx = (BIO_F_BUFFER_CTX *)b->ptr;-
153-
154 if ((ctx == NULL) || (b->next_bio == NULL))
(ctx == ((void *)0) )Description
TRUEnever evaluated
FALSEnever evaluated
(b->next_bio == ((void *)0) )Description
TRUEnever evaluated
FALSEnever evaluated
0
155 return (0);
never executed: return (0);
0
156 num = 0;-
157 BIO_clear_retry_flags(b);-
158-
159start:
code before this statement never executed: start:
0
160 i = ctx->ibuf_len;-
161 /* If there is stuff left over, grab it */-
162 if (i != 0) {
i != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
163 if (i > outl)
i > outlDescription
TRUEnever evaluated
FALSEnever evaluated
0
164 i = outl;
never executed: i = outl;
0
165 memcpy(out, &(ctx->ibuf[ctx->ibuf_off]), i);-
166 ctx->ibuf_off += i;-
167 ctx->ibuf_len -= i;-
168 num += i;-
169 if (outl == i)
outl == iDescription
TRUEnever evaluated
FALSEnever evaluated
0
170 return (num);
never executed: return (num);
0
171 outl -= i;-
172 out += i;-
173 }
never executed: end of block
0
174-
175 /* We may have done a partial read. try to do more.-
176 * We have nothing in the buffer.-
177 * If we get an error and have read some data, just return it-
178 * and let them retry to get the error again.-
179 * copy direct to parent address space */-
180 if (outl > ctx->ibuf_size) {
outl > ctx->ibuf_sizeDescription
TRUEnever evaluated
FALSEnever evaluated
0
181 for (;;) {-
182 i = BIO_read(b->next_bio, out, outl);-
183 if (i <= 0) {
i <= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
184 BIO_copy_next_retry(b);-
185 if (i < 0)
i < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
186 return ((num > 0) ? num : i);
never executed: return ((num > 0) ? num : i);
(num > 0)Description
TRUEnever evaluated
FALSEnever evaluated
0
187 if (i == 0)
i == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
188 return (num);
never executed: return (num);
0
189 }
never executed: end of block
0
190 num += i;-
191 if (outl == i)
outl == iDescription
TRUEnever evaluated
FALSEnever evaluated
0
192 return (num);
never executed: return (num);
0
193 out += i;-
194 outl -= i;-
195 }
never executed: end of block
0
196 }
never executed: end of block
0
197 /* else */-
198-
199 /* we are going to be doing some buffering */-
200 i = BIO_read(b->next_bio, ctx->ibuf, ctx->ibuf_size);-
201 if (i <= 0) {
i <= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
202 BIO_copy_next_retry(b);-
203 if (i < 0)
i < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
204 return ((num > 0) ? num : i);
never executed: return ((num > 0) ? num : i);
(num > 0)Description
TRUEnever evaluated
FALSEnever evaluated
0
205 if (i == 0)
i == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
206 return (num);
never executed: return (num);
0
207 }
never executed: end of block
0
208 ctx->ibuf_off = 0;-
209 ctx->ibuf_len = i;-
210-
211 /* Lets re-read using ourselves :-) */-
212 goto start;
never executed: goto start;
0
213}-
214-
215static int-
216buffer_write(BIO *b, const char *in, int inl)-
217{-
218 int i, num = 0;-
219 BIO_F_BUFFER_CTX *ctx;-
220-
221 if ((in == NULL) || (inl <= 0))
(in == ((void *)0) )Description
TRUEnever evaluated
FALSEevaluated 687 times by 4 tests
Evaluated by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
(inl <= 0)Description
TRUEnever evaluated
FALSEevaluated 687 times by 4 tests
Evaluated by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
0-687
222 return (0);
never executed: return (0);
0
223 ctx = (BIO_F_BUFFER_CTX *)b->ptr;-
224 if ((ctx == NULL) || (b->next_bio == NULL))
(ctx == ((void *)0) )Description
TRUEnever evaluated
FALSEevaluated 687 times by 4 tests
Evaluated by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
(b->next_bio == ((void *)0) )Description
TRUEnever evaluated
FALSEevaluated 687 times by 4 tests
Evaluated by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
0-687
225 return (0);
never executed: return (0);
0
226-
227 BIO_clear_retry_flags(b);-
228start:
code before this statement executed 687 times by 4 tests: start:
Executed by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
687
229 i = ctx->obuf_size - (ctx->obuf_len + ctx->obuf_off);-
230 /* add to buffer and return */-
231 if (i >= inl) {
i >= inlDescription
TRUEevaluated 687 times by 4 tests
Evaluated by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
FALSEnever evaluated
0-687
232 memcpy(&(ctx->obuf[ctx->obuf_off + ctx->obuf_len]), in, inl);-
233 ctx->obuf_len += inl;-
234 return (num + inl);
executed 687 times by 4 tests: return (num + inl);
Executed by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
687
235 }-
236 /* else */-
237 /* stuff already in buffer, so add to it first, then flush */-
238 if (ctx->obuf_len != 0) {
ctx->obuf_len != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
239 if (i > 0) /* lets fill it up if we can */
i > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
240 {-
241 memcpy(&(ctx->obuf[ctx->obuf_off + ctx->obuf_len]), in, i);-
242 in += i;-
243 inl -= i;-
244 num += i;-
245 ctx->obuf_len += i;-
246 }
never executed: end of block
0
247 /* we now have a full buffer needing flushing */-
248 for (;;) {-
249 i = BIO_write(b->next_bio, &(ctx->obuf[ctx->obuf_off]),-
250 ctx->obuf_len);-
251 if (i <= 0) {
i <= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
252 BIO_copy_next_retry(b);-
253-
254 if (i < 0)
i < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
255 return ((num > 0) ? num : i);
never executed: return ((num > 0) ? num : i);
(num > 0)Description
TRUEnever evaluated
FALSEnever evaluated
0
256 if (i == 0)
i == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
257 return (num);
never executed: return (num);
0
258 }
never executed: end of block
0
259 ctx->obuf_off += i;-
260 ctx->obuf_len -= i;-
261 if (ctx->obuf_len == 0)
ctx->obuf_len == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
262 break;
never executed: break;
0
263 }
never executed: end of block
0
264 }
never executed: end of block
0
265 /* we only get here if the buffer has been flushed and we-
266 * still have stuff to write */-
267 ctx->obuf_off = 0;-
268-
269 /* we now have inl bytes to write */-
270 while (inl >= ctx->obuf_size) {
inl >= ctx->obuf_sizeDescription
TRUEnever evaluated
FALSEnever evaluated
0
271 i = BIO_write(b->next_bio, in, inl);-
272 if (i <= 0) {
i <= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
273 BIO_copy_next_retry(b);-
274 if (i < 0)
i < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
275 return ((num > 0) ? num : i);
never executed: return ((num > 0) ? num : i);
(num > 0)Description
TRUEnever evaluated
FALSEnever evaluated
0
276 if (i == 0)
i == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
277 return (num);
never executed: return (num);
0
278 }
never executed: end of block
0
279 num += i;-
280 in += i;-
281 inl -= i;-
282 if (inl == 0)
inl == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
283 return (num);
never executed: return (num);
0
284 }
never executed: end of block
0
285-
286 /* copy the rest into the buffer since we have only a small-
287 * amount left */-
288 goto start;
never executed: goto start;
0
289}-
290-
291static long-
292buffer_ctrl(BIO *b, int cmd, long num, void *ptr)-
293{-
294 BIO *dbio;-
295 BIO_F_BUFFER_CTX *ctx;-
296 long ret = 1;-
297 char *p1, *p2;-
298 int r, i, *ip;-
299 int ibs, obs;-
300-
301 ctx = (BIO_F_BUFFER_CTX *)b->ptr;-
302-
303 switch (cmd) {-
304 case BIO_CTRL_RESET:
executed 139 times by 4 tests: case 1:
Executed by:
  • clienttest
  • servertest
  • ssltest
  • tlstest
139
305 ctx->ibuf_off = 0;-
306 ctx->ibuf_len = 0;-
307 ctx->obuf_off = 0;-
308 ctx->obuf_len = 0;-
309 if (b->next_bio == NULL)
b->next_bio == ((void *)0)Description
TRUEevaluated 139 times by 4 tests
Evaluated by:
  • clienttest
  • servertest
  • ssltest
  • tlstest
FALSEnever evaluated
0-139
310 return (0);
executed 139 times by 4 tests: return (0);
Executed by:
  • clienttest
  • servertest
  • ssltest
  • tlstest
139
311 ret = BIO_ctrl(b->next_bio, cmd, num, ptr);-
312 break;
never executed: break;
0
313 case BIO_CTRL_INFO:
never executed: case 3:
0
314 ret = (long)ctx->obuf_len;-
315 break;
never executed: break;
0
316 case BIO_C_GET_BUFF_NUM_LINES:
never executed: case 116:
0
317 ret = 0;-
318 p1 = ctx->ibuf;-
319 for (i = 0; i < ctx->ibuf_len; i++) {
i < ctx->ibuf_lenDescription
TRUEnever evaluated
FALSEnever evaluated
0
320 if (p1[ctx->ibuf_off + i] == '\n')
p1[ctx->ibuf_off + i] == '\n'Description
TRUEnever evaluated
FALSEnever evaluated
0
321 ret++;
never executed: ret++;
0
322 }
never executed: end of block
0
323 break;
never executed: break;
0
324 case BIO_CTRL_WPENDING:
executed 120 times by 1 test: case 13:
Executed by:
  • ssltest
120
325 ret = (long)ctx->obuf_len;-
326 if (ret == 0) {
ret == 0Description
TRUEevaluated 33 times by 1 test
Evaluated by:
  • ssltest
FALSEevaluated 87 times by 1 test
Evaluated by:
  • ssltest
33-87
327 if (b->next_bio == NULL)
b->next_bio == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 33 times by 1 test
Evaluated by:
  • ssltest
0-33
328 return (0);
never executed: return (0);
0
329 ret = BIO_ctrl(b->next_bio, cmd, num, ptr);-
330 }
executed 33 times by 1 test: end of block
Executed by:
  • ssltest
33
331 break;
executed 120 times by 1 test: break;
Executed by:
  • ssltest
120
332 case BIO_CTRL_PENDING:
never executed: case 10:
0
333 ret = (long)ctx->ibuf_len;-
334 if (ret == 0) {
ret == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
335 if (b->next_bio == NULL)
b->next_bio == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
336 return (0);
never executed: return (0);
0
337 ret = BIO_ctrl(b->next_bio, cmd, num, ptr);-
338 }
never executed: end of block
0
339 break;
never executed: break;
0
340 case BIO_C_SET_BUFF_READ_DATA:
never executed: case 122:
0
341 if (num > ctx->ibuf_size) {
num > ctx->ibuf_sizeDescription
TRUEnever evaluated
FALSEnever evaluated
0
342 p1 = malloc(num);-
343 if (p1 == NULL)
p1 == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
344 goto malloc_error;
never executed: goto malloc_error;
0
345 free(ctx->ibuf);-
346 ctx->ibuf = p1;-
347 }
never executed: end of block
0
348 ctx->ibuf_off = 0;-
349 ctx->ibuf_len = (int)num;-
350 memcpy(ctx->ibuf, ptr, num);-
351 ret = 1;-
352 break;
never executed: break;
0
353 case BIO_C_SET_BUFF_SIZE:
executed 139 times by 4 tests: case 117:
Executed by:
  • clienttest
  • servertest
  • ssltest
  • tlstest
139
354 if (ptr != NULL) {
ptr != ((void *)0)Description
TRUEevaluated 139 times by 4 tests
Evaluated by:
  • clienttest
  • servertest
  • ssltest
  • tlstest
FALSEnever evaluated
0-139
355 ip = (int *)ptr;-
356 if (*ip == 0) {
*ip == 0Description
TRUEevaluated 139 times by 4 tests
Evaluated by:
  • clienttest
  • servertest
  • ssltest
  • tlstest
FALSEnever evaluated
0-139
357 ibs = (int)num;-
358 obs = ctx->obuf_size;-
359 }
executed 139 times by 4 tests: end of block
Executed by:
  • clienttest
  • servertest
  • ssltest
  • tlstest
139
360 else /* if (*ip == 1) */-
361 {-
362 ibs = ctx->ibuf_size;-
363 obs = (int)num;-
364 }
never executed: end of block
0
365 } else {-
366 ibs = (int)num;-
367 obs = (int)num;-
368 }
never executed: end of block
0
369 p1 = ctx->ibuf;-
370 p2 = ctx->obuf;-
371 if ((ibs > DEFAULT_BUFFER_SIZE) && (ibs != ctx->ibuf_size)) {
(ibs > 4096)Description
TRUEnever evaluated
FALSEevaluated 139 times by 4 tests
Evaluated by:
  • clienttest
  • servertest
  • ssltest
  • tlstest
(ibs != ctx->ibuf_size)Description
TRUEnever evaluated
FALSEnever evaluated
0-139
372 p1 = malloc(num);-
373 if (p1 == NULL)
p1 == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
374 goto malloc_error;
never executed: goto malloc_error;
0
375 }
never executed: end of block
0
376 if ((obs > DEFAULT_BUFFER_SIZE) && (obs != ctx->obuf_size)) {
(obs > 4096)Description
TRUEnever evaluated
FALSEevaluated 139 times by 4 tests
Evaluated by:
  • clienttest
  • servertest
  • ssltest
  • tlstest
(obs != ctx->obuf_size)Description
TRUEnever evaluated
FALSEnever evaluated
0-139
377 p2 = malloc(num);-
378 if (p2 == NULL) {
p2 == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
379 if (p1 != ctx->ibuf)
p1 != ctx->ibufDescription
TRUEnever evaluated
FALSEnever evaluated
0
380 free(p1);
never executed: free(p1);
0
381 goto malloc_error;
never executed: goto malloc_error;
0
382 }-
383 }
never executed: end of block
0
384 if (ctx->ibuf != p1) {
ctx->ibuf != p1Description
TRUEnever evaluated
FALSEevaluated 139 times by 4 tests
Evaluated by:
  • clienttest
  • servertest
  • ssltest
  • tlstest
0-139
385 free(ctx->ibuf);-
386 ctx->ibuf = p1;-
387 ctx->ibuf_off = 0;-
388 ctx->ibuf_len = 0;-
389 ctx->ibuf_size = ibs;-
390 }
never executed: end of block
0
391 if (ctx->obuf != p2) {
ctx->obuf != p2Description
TRUEnever evaluated
FALSEevaluated 139 times by 4 tests
Evaluated by:
  • clienttest
  • servertest
  • ssltest
  • tlstest
0-139
392 free(ctx->obuf);-
393 ctx->obuf = p2;-
394 ctx->obuf_off = 0;-
395 ctx->obuf_len = 0;-
396 ctx->obuf_size = obs;-
397 }
never executed: end of block
0
398 break;
executed 139 times by 4 tests: break;
Executed by:
  • clienttest
  • servertest
  • ssltest
  • tlstest
139
399 case BIO_C_DO_STATE_MACHINE:
never executed: case 101:
0
400 if (b->next_bio == NULL)
b->next_bio == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
401 return (0);
never executed: return (0);
0
402 BIO_clear_retry_flags(b);-
403 ret = BIO_ctrl(b->next_bio, cmd, num, ptr);-
404 BIO_copy_next_retry(b);-
405 break;
never executed: break;
0
406-
407 case BIO_CTRL_FLUSH:
executed 581 times by 4 tests: case 11:
Executed by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
581
408 if (b->next_bio == NULL)
b->next_bio == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 581 times by 4 tests
Evaluated by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
0-581
409 return (0);
never executed: return (0);
0
410 if (ctx->obuf_len <= 0) {
ctx->obuf_len <= 0Description
TRUEnever evaluated
FALSEevaluated 581 times by 4 tests
Evaluated by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
0-581
411 ret = BIO_ctrl(b->next_bio, cmd, num, ptr);-
412 break;
never executed: break;
0
413 }-
414-
415 for (;;) {-
416 BIO_clear_retry_flags(b);-
417 if (ctx->obuf_len > 0) {
ctx->obuf_len > 0Description
TRUEevaluated 771 times by 4 tests
Evaluated by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
FALSEevaluated 205 times by 4 tests
Evaluated by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
205-771
418 r = BIO_write(b->next_bio,-
419 &(ctx->obuf[ctx->obuf_off]),-
420 ctx->obuf_len);-
421 BIO_copy_next_retry(b);-
422 if (r <= 0)
r <= 0Description
TRUEevaluated 376 times by 2 tests
Evaluated by:
  • ssltest
  • tlstest
FALSEevaluated 395 times by 4 tests
Evaluated by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
376-395
423 return ((long)r);
executed 376 times by 2 tests: return ((long)r);
Executed by:
  • ssltest
  • tlstest
376
424 ctx->obuf_off += r;-
425 ctx->obuf_len -= r;-
426 } else {
executed 395 times by 4 tests: end of block
Executed by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
395
427 ctx->obuf_len = 0;-
428 ctx->obuf_off = 0;-
429 break;
executed 205 times by 4 tests: break;
Executed by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
205
430 }-
431 }-
432 ret = BIO_ctrl(b->next_bio, cmd, num, ptr);-
433 break;
executed 205 times by 4 tests: break;
Executed by:
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
205
434 case BIO_CTRL_DUP:
never executed: case 12:
0
435 dbio = (BIO *)ptr;-
436 if (!BIO_set_read_buffer_size(dbio, ctx->ibuf_size) ||
!BIO_int_ctrl(...->ibuf_size,0)Description
TRUEnever evaluated
FALSEnever evaluated
0
437 !BIO_set_write_buffer_size(dbio, ctx->obuf_size))
!BIO_int_ctrl(...->obuf_size,1)Description
TRUEnever evaluated
FALSEnever evaluated
0
438 ret = 0;
never executed: ret = 0;
0
439 break;
never executed: break;
0
440 default:
executed 306 times by 5 tests: default:
Executed by:
  • clienttest
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
306
441 if (b->next_bio == NULL)
b->next_bio == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 306 times by 5 tests
Evaluated by:
  • clienttest
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
0-306
442 return (0);
never executed: return (0);
0
443 ret = BIO_ctrl(b->next_bio, cmd, num, ptr);-
444 break;
executed 306 times by 5 tests: break;
Executed by:
  • clienttest
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
306
445 }-
446 return (ret);
executed 770 times by 5 tests: return (ret);
Executed by:
  • clienttest
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
770
447malloc_error:-
448 BIOerror(ERR_R_MALLOC_FAILURE);-
449 return (0);
never executed: return (0);
0
450}-
451-
452static long-
453buffer_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)-
454{-
455 long ret = 1;-
456-
457 if (b->next_bio == NULL)
b->next_bio == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
458 return (0);
never executed: return (0);
0
459 switch (cmd) {-
460 default:
never executed: default:
0
461 ret = BIO_callback_ctrl(b->next_bio, cmd, fp);-
462 break;
never executed: break;
0
463 }-
464 return (ret);
never executed: return (ret);
0
465}-
466-
467static int-
468buffer_gets(BIO *b, char *buf, int size)-
469{-
470 BIO_F_BUFFER_CTX *ctx;-
471 int num = 0, i, flag;-
472 char *p;-
473-
474 ctx = (BIO_F_BUFFER_CTX *)b->ptr;-
475 size--; /* reserve space for a '\0' */-
476 BIO_clear_retry_flags(b);-
477-
478 for (;;) {-
479 if (ctx->ibuf_len > 0) {
ctx->ibuf_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
480 p = &(ctx->ibuf[ctx->ibuf_off]);-
481 flag = 0;-
482 for (i = 0; (i < ctx->ibuf_len) && (i < size); i++) {
(i < ctx->ibuf_len)Description
TRUEnever evaluated
FALSEnever evaluated
(i < size)Description
TRUEnever evaluated
FALSEnever evaluated
0
483 *(buf++) = p[i];-
484 if (p[i] == '\n') {
p[i] == '\n'Description
TRUEnever evaluated
FALSEnever evaluated
0
485 flag = 1;-
486 i++;-
487 break;
never executed: break;
0
488 }-
489 }
never executed: end of block
0
490 num += i;-
491 size -= i;-
492 ctx->ibuf_len -= i;-
493 ctx->ibuf_off += i;-
494 if (flag || size == 0) {
flagDescription
TRUEnever evaluated
FALSEnever evaluated
size == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
495 *buf = '\0';-
496 return (num);
never executed: return (num);
0
497 }-
498 }
never executed: end of block
0
499 else /* read another chunk */-
500 {-
501 i = BIO_read(b->next_bio, ctx->ibuf, ctx->ibuf_size);-
502 if (i <= 0) {
i <= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
503 BIO_copy_next_retry(b);-
504 *buf = '\0';-
505 if (i < 0)
i < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
506 return ((num > 0) ? num : i);
never executed: return ((num > 0) ? num : i);
(num > 0)Description
TRUEnever evaluated
FALSEnever evaluated
0
507 if (i == 0)
i == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
508 return (num);
never executed: return (num);
0
509 }
never executed: end of block
0
510 ctx->ibuf_len = i;-
511 ctx->ibuf_off = 0;-
512 }
never executed: end of block
0
513 }-
514}
never executed: end of block
0
515-
516static int-
517buffer_puts(BIO *b, const char *str)-
518{-
519 return (buffer_write(b, str, strlen(str)));
never executed: return (buffer_write(b, str, strlen(str)));
0
520}-
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