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| 1 /* crypto/bio/bf_null.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/bio.h> | |
| 63 | |
| 64 /* BIO_put and BIO_get both add to the digest, | |
| 65 * BIO_gets returns the digest */ | |
| 66 | |
| 67 static int nullf_write(BIO *h, const char *buf, int num); | |
| 68 static int nullf_read(BIO *h, char *buf, int size); | |
| 69 static int nullf_puts(BIO *h, const char *str); | |
| 70 static int nullf_gets(BIO *h, char *str, int size); | |
| 71 static long nullf_ctrl(BIO *h, int cmd, long arg1, void *arg2); | |
| 72 static int nullf_new(BIO *h); | |
| 73 static int nullf_free(BIO *data); | |
| 74 static long nullf_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp); | |
| 75 static BIO_METHOD methods_nullf= | |
| 76 { | |
| 77 BIO_TYPE_NULL_FILTER, | |
| 78 "NULL filter", | |
| 79 nullf_write, | |
| 80 nullf_read, | |
| 81 nullf_puts, | |
| 82 nullf_gets, | |
| 83 nullf_ctrl, | |
| 84 nullf_new, | |
| 85 nullf_free, | |
| 86 nullf_callback_ctrl, | |
| 87 }; | |
| 88 | |
| 89 BIO_METHOD *BIO_f_null(void) | |
| 90 { | |
| 91 return(&methods_nullf); | |
| 92 } | |
| 93 | |
| 94 static int nullf_new(BIO *bi) | |
| 95 { | |
| 96 bi->init=1; | |
| 97 bi->ptr=NULL; | |
| 98 bi->flags=0; | |
| 99 return(1); | |
| 100 } | |
| 101 | |
| 102 static int nullf_free(BIO *a) | |
| 103 { | |
| 104 if (a == NULL) return(0); | |
| 105 /* a->ptr=NULL; | |
| 106 a->init=0; | |
| 107 a->flags=0;*/ | |
| 108 return(1); | |
| 109 } | |
| 110 | |
| 111 static int nullf_read(BIO *b, char *out, int outl) | |
| 112 { | |
| 113 int ret=0; | |
| 114 | |
| 115 if (out == NULL) return(0); | |
| 116 if (b->next_bio == NULL) return(0); | |
| 117 ret=BIO_read(b->next_bio,out,outl); | |
| 118 BIO_clear_retry_flags(b); | |
| 119 BIO_copy_next_retry(b); | |
| 120 return(ret); | |
| 121 } | |
| 122 | |
| 123 static int nullf_write(BIO *b, const char *in, int inl) | |
| 124 { | |
| 125 int ret=0; | |
| 126 | |
| 127 if ((in == NULL) || (inl <= 0)) return(0); | |
| 128 if (b->next_bio == NULL) return(0); | |
| 129 ret=BIO_write(b->next_bio,in,inl); | |
| 130 BIO_clear_retry_flags(b); | |
| 131 BIO_copy_next_retry(b); | |
| 132 return(ret); | |
| 133 } | |
| 134 | |
| 135 static long nullf_ctrl(BIO *b, int cmd, long num, void *ptr) | |
| 136 { | |
| 137 long ret; | |
| 138 | |
| 139 if (b->next_bio == NULL) return(0); | |
| 140 switch(cmd) | |
| 141 { | |
| 142 case BIO_C_DO_STATE_MACHINE: | |
| 143 BIO_clear_retry_flags(b); | |
| 144 ret=BIO_ctrl(b->next_bio,cmd,num,ptr); | |
| 145 BIO_copy_next_retry(b); | |
| 146 break; | |
| 147 case BIO_CTRL_DUP: | |
| 148 ret=0L; | |
| 149 break; | |
| 150 default: | |
| 151 ret=BIO_ctrl(b->next_bio,cmd,num,ptr); | |
| 152 } | |
| 153 return(ret); | |
| 154 } | |
| 155 | |
| 156 static long nullf_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp) | |
| 157 { | |
| 158 long ret=1; | |
| 159 | |
| 160 if (b->next_bio == NULL) return(0); | |
| 161 switch (cmd) | |
| 162 { | |
| 163 default: | |
| 164 ret=BIO_callback_ctrl(b->next_bio,cmd,fp); | |
| 165 break; | |
| 166 } | |
| 167 return(ret); | |
| 168 } | |
| 169 | |
| 170 static int nullf_gets(BIO *bp, char *buf, int size) | |
| 171 { | |
| 172 if (bp->next_bio == NULL) return(0); | |
| 173 return(BIO_gets(bp->next_bio,buf,size)); | |
| 174 } | |
| 175 | |
| 176 | |
| 177 static int nullf_puts(BIO *bp, const char *str) | |
| 178 { | |
| 179 if (bp->next_bio == NULL) return(0); | |
| 180 return(BIO_puts(bp->next_bio,str)); | |
| 181 } | |
| 182 | |
| 183 | |
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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