| OLD | NEW |
|---|
| (Empty) |
| 1 /* crypto/bio/bf_nbio.c */ | |
| 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 <stdio.h> | |
| 60 #include <errno.h> | |
| 61 #include "cryptlib.h" | |
| 62 #include <openssl/rand.h> | |
| 63 #include <openssl/bio.h> | |
| 64 | |
| 65 /* BIO_put and BIO_get both add to the digest, | |
| 66 * BIO_gets returns the digest */ | |
| 67 | |
| 68 static int nbiof_write(BIO *h,const char *buf,int num); | |
| 69 static int nbiof_read(BIO *h,char *buf,int size); | |
| 70 static int nbiof_puts(BIO *h,const char *str); | |
| 71 static int nbiof_gets(BIO *h,char *str,int size); | |
| 72 static long nbiof_ctrl(BIO *h,int cmd,long arg1,void *arg2); | |
| 73 static int nbiof_new(BIO *h); | |
| 74 static int nbiof_free(BIO *data); | |
| 75 static long nbiof_callback_ctrl(BIO *h,int cmd,bio_info_cb *fp); | |
| 76 typedef struct nbio_test_st | |
| 77 { | |
| 78 /* only set if we sent a 'should retry' error */ | |
| 79 int lrn; | |
| 80 int lwn; | |
| 81 } NBIO_TEST; | |
| 82 | |
| 83 static BIO_METHOD methods_nbiof= | |
| 84 { | |
| 85 BIO_TYPE_NBIO_TEST, | |
| 86 "non-blocking IO test filter", | |
| 87 nbiof_write, | |
| 88 nbiof_read, | |
| 89 nbiof_puts, | |
| 90 nbiof_gets, | |
| 91 nbiof_ctrl, | |
| 92 nbiof_new, | |
| 93 nbiof_free, | |
| 94 nbiof_callback_ctrl, | |
| 95 }; | |
| 96 | |
| 97 BIO_METHOD *BIO_f_nbio_test(void) | |
| 98 { | |
| 99 return(&methods_nbiof); | |
| 100 } | |
| 101 | |
| 102 static int nbiof_new(BIO *bi) | |
| 103 { | |
| 104 NBIO_TEST *nt; | |
| 105 | |
| 106 if (!(nt=(NBIO_TEST *)OPENSSL_malloc(sizeof(NBIO_TEST)))) return(0); | |
| 107 nt->lrn= -1; | |
| 108 nt->lwn= -1; | |
| 109 bi->ptr=(char *)nt; | |
| 110 bi->init=1; | |
| 111 bi->flags=0; | |
| 112 return(1); | |
| 113 } | |
| 114 | |
| 115 static int nbiof_free(BIO *a) | |
| 116 { | |
| 117 if (a == NULL) return(0); | |
| 118 if (a->ptr != NULL) | |
| 119 OPENSSL_free(a->ptr); | |
| 120 a->ptr=NULL; | |
| 121 a->init=0; | |
| 122 a->flags=0; | |
| 123 return(1); | |
| 124 } | |
| 125 | |
| 126 static int nbiof_read(BIO *b, char *out, int outl) | |
| 127 { | |
| 128 int ret=0; | |
| 129 #if 1 | |
| 130 int num; | |
| 131 unsigned char n; | |
| 132 #endif | |
| 133 | |
| 134 if (out == NULL) return(0); | |
| 135 if (b->next_bio == NULL) return(0); | |
| 136 | |
| 137 BIO_clear_retry_flags(b); | |
| 138 #if 1 | |
| 139 RAND_pseudo_bytes(&n,1); | |
| 140 num=(n&0x07); | |
| 141 | |
| 142 if (outl > num) outl=num; | |
| 143 | |
| 144 if (num == 0) | |
| 145 { | |
| 146 ret= -1; | |
| 147 BIO_set_retry_read(b); | |
| 148 } | |
| 149 else | |
| 150 #endif | |
| 151 { | |
| 152 ret=BIO_read(b->next_bio,out,outl); | |
| 153 if (ret < 0) | |
| 154 BIO_copy_next_retry(b); | |
| 155 } | |
| 156 return(ret); | |
| 157 } | |
| 158 | |
| 159 static int nbiof_write(BIO *b, const char *in, int inl) | |
| 160 { | |
| 161 NBIO_TEST *nt; | |
| 162 int ret=0; | |
| 163 int num; | |
| 164 unsigned char n; | |
| 165 | |
| 166 if ((in == NULL) || (inl <= 0)) return(0); | |
| 167 if (b->next_bio == NULL) return(0); | |
| 168 nt=(NBIO_TEST *)b->ptr; | |
| 169 | |
| 170 BIO_clear_retry_flags(b); | |
| 171 | |
| 172 #if 1 | |
| 173 if (nt->lwn > 0) | |
| 174 { | |
| 175 num=nt->lwn; | |
| 176 nt->lwn=0; | |
| 177 } | |
| 178 else | |
| 179 { | |
| 180 RAND_pseudo_bytes(&n,1); | |
| 181 num=(n&7); | |
| 182 } | |
| 183 | |
| 184 if (inl > num) inl=num; | |
| 185 | |
| 186 if (num == 0) | |
| 187 { | |
| 188 ret= -1; | |
| 189 BIO_set_retry_write(b); | |
| 190 } | |
| 191 else | |
| 192 #endif | |
| 193 { | |
| 194 ret=BIO_write(b->next_bio,in,inl); | |
| 195 if (ret < 0) | |
| 196 { | |
| 197 BIO_copy_next_retry(b); | |
| 198 nt->lwn=inl; | |
| 199 } | |
| 200 } | |
| 201 return(ret); | |
| 202 } | |
| 203 | |
| 204 static long nbiof_ctrl(BIO *b, int cmd, long num, void *ptr) | |
| 205 { | |
| 206 long ret; | |
| 207 | |
| 208 if (b->next_bio == NULL) return(0); | |
| 209 switch (cmd) | |
| 210 { | |
| 211 case BIO_C_DO_STATE_MACHINE: | |
| 212 BIO_clear_retry_flags(b); | |
| 213 ret=BIO_ctrl(b->next_bio,cmd,num,ptr); | |
| 214 BIO_copy_next_retry(b); | |
| 215 break; | |
| 216 case BIO_CTRL_DUP: | |
| 217 ret=0L; | |
| 218 break; | |
| 219 default: | |
| 220 ret=BIO_ctrl(b->next_bio,cmd,num,ptr); | |
| 221 break; | |
| 222 } | |
| 223 return(ret); | |
| 224 } | |
| 225 | |
| 226 static long nbiof_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp) | |
| 227 { | |
| 228 long ret=1; | |
| 229 | |
| 230 if (b->next_bio == NULL) return(0); | |
| 231 switch (cmd) | |
| 232 { | |
| 233 default: | |
| 234 ret=BIO_callback_ctrl(b->next_bio,cmd,fp); | |
| 235 break; | |
| 236 } | |
| 237 return(ret); | |
| 238 } | |
| 239 | |
| 240 static int nbiof_gets(BIO *bp, char *buf, int size) | |
| 241 { | |
| 242 if (bp->next_bio == NULL) return(0); | |
| 243 return(BIO_gets(bp->next_bio,buf,size)); | |
| 244 } | |
| 245 | |
| 246 | |
| 247 static int nbiof_puts(BIO *bp, const char *str) | |
| 248 { | |
| 249 if (bp->next_bio == NULL) return(0); | |
| 250 return(BIO_puts(bp->next_bio,str)); | |
| 251 } | |
| 252 | |
| 253 | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master