diff options
Diffstat (limited to 'src/lib/libcrypto/pem/pem_lib.c')
-rw-r--r-- | src/lib/libcrypto/pem/pem_lib.c | 762 |
1 files changed, 762 insertions, 0 deletions
diff --git a/src/lib/libcrypto/pem/pem_lib.c b/src/lib/libcrypto/pem/pem_lib.c new file mode 100644 index 0000000000..7a2c0ad83b --- /dev/null +++ b/src/lib/libcrypto/pem/pem_lib.c | |||
@@ -0,0 +1,762 @@ | |||
1 | /* crypto/pem/pem_lib.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 "cryptlib.h" | ||
61 | #include "buffer.h" | ||
62 | #include "objects.h" | ||
63 | #include "evp.h" | ||
64 | #include "rand.h" | ||
65 | #include "x509.h" | ||
66 | #include "pem.h" | ||
67 | #ifndef NO_DES | ||
68 | #include "des.h" | ||
69 | #endif | ||
70 | |||
71 | char *PEM_version="PEM part of SSLeay 0.9.0b 29-Jun-1998"; | ||
72 | |||
73 | #define MIN_LENGTH 4 | ||
74 | |||
75 | /* PEMerr(PEM_F_PEM_WRITE_BIO,ERR_R_MALLOC_FAILURE); | ||
76 | * PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); | ||
77 | */ | ||
78 | |||
79 | #ifndef NOPROTO | ||
80 | static int def_callback(char *buf, int num, int w); | ||
81 | static int load_iv(unsigned char **fromp,unsigned char *to, int num); | ||
82 | #else | ||
83 | static int def_callback(); | ||
84 | static int load_iv(); | ||
85 | #endif | ||
86 | |||
87 | static int def_callback(buf, num, w) | ||
88 | char *buf; | ||
89 | int num; | ||
90 | int w; | ||
91 | { | ||
92 | #ifdef NO_FP_API | ||
93 | /* We should not ever call the default callback routine from | ||
94 | * windows. */ | ||
95 | PEMerr(PEM_F_DEF_CALLBACK,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | ||
96 | return(-1); | ||
97 | #else | ||
98 | int i,j; | ||
99 | char *prompt; | ||
100 | |||
101 | prompt=EVP_get_pw_prompt(); | ||
102 | if (prompt == NULL) | ||
103 | prompt="Enter PEM pass phrase:"; | ||
104 | |||
105 | for (;;) | ||
106 | { | ||
107 | i=EVP_read_pw_string(buf,num,prompt,w); | ||
108 | if (i != 0) | ||
109 | { | ||
110 | PEMerr(PEM_F_DEF_CALLBACK,PEM_R_PROBLEMS_GETTING_PASSWORD); | ||
111 | memset(buf,0,(unsigned int)num); | ||
112 | return(-1); | ||
113 | } | ||
114 | j=strlen(buf); | ||
115 | if (j < MIN_LENGTH) | ||
116 | { | ||
117 | fprintf(stderr,"phrase is too short, needs to be at least %d chars\n",MIN_LENGTH); | ||
118 | } | ||
119 | else | ||
120 | break; | ||
121 | } | ||
122 | return(j); | ||
123 | #endif | ||
124 | } | ||
125 | |||
126 | void PEM_proc_type(buf, type) | ||
127 | char *buf; | ||
128 | int type; | ||
129 | { | ||
130 | char *str; | ||
131 | |||
132 | if (type == PEM_TYPE_ENCRYPTED) | ||
133 | str="ENCRYPTED"; | ||
134 | else if (type == PEM_TYPE_MIC_CLEAR) | ||
135 | str="MIC-CLEAR"; | ||
136 | else if (type == PEM_TYPE_MIC_ONLY) | ||
137 | str="MIC-ONLY"; | ||
138 | else | ||
139 | str="BAD-TYPE"; | ||
140 | |||
141 | strcat(buf,"Proc-Type: 4,"); | ||
142 | strcat(buf,str); | ||
143 | strcat(buf,"\n"); | ||
144 | } | ||
145 | |||
146 | void PEM_dek_info(buf, type, len, str) | ||
147 | char *buf; | ||
148 | char *type; | ||
149 | int len; | ||
150 | char *str; | ||
151 | { | ||
152 | static unsigned char map[17]="0123456789ABCDEF"; | ||
153 | long i; | ||
154 | int j; | ||
155 | |||
156 | strcat(buf,"DEK-Info: "); | ||
157 | strcat(buf,type); | ||
158 | strcat(buf,","); | ||
159 | j=strlen(buf); | ||
160 | for (i=0; i<len; i++) | ||
161 | { | ||
162 | buf[j+i*2] =map[(str[i]>>4)&0x0f]; | ||
163 | buf[j+i*2+1]=map[(str[i] )&0x0f]; | ||
164 | } | ||
165 | buf[j+i*2]='\n'; | ||
166 | buf[j+i*2+1]='\0'; | ||
167 | } | ||
168 | |||
169 | #ifndef NO_FP_API | ||
170 | char *PEM_ASN1_read(d2i,name,fp, x, cb) | ||
171 | char *(*d2i)(); | ||
172 | char *name; | ||
173 | FILE *fp; | ||
174 | char **x; | ||
175 | int (*cb)(); | ||
176 | { | ||
177 | BIO *b; | ||
178 | char *ret; | ||
179 | |||
180 | if ((b=BIO_new(BIO_s_file())) == NULL) | ||
181 | { | ||
182 | PEMerr(PEM_F_PEM_ASN1_READ,ERR_R_BUF_LIB); | ||
183 | return(0); | ||
184 | } | ||
185 | BIO_set_fp(b,fp,BIO_NOCLOSE); | ||
186 | ret=PEM_ASN1_read_bio(d2i,name,b,x,cb); | ||
187 | BIO_free(b); | ||
188 | return(ret); | ||
189 | } | ||
190 | #endif | ||
191 | |||
192 | char *PEM_ASN1_read_bio(d2i,name,bp, x, cb) | ||
193 | char *(*d2i)(); | ||
194 | char *name; | ||
195 | BIO *bp; | ||
196 | char **x; | ||
197 | int (*cb)(); | ||
198 | { | ||
199 | EVP_CIPHER_INFO cipher; | ||
200 | char *nm=NULL,*header=NULL; | ||
201 | unsigned char *p=NULL,*data=NULL; | ||
202 | long len; | ||
203 | char *ret=NULL; | ||
204 | |||
205 | for (;;) | ||
206 | { | ||
207 | if (!PEM_read_bio(bp,&nm,&header,&data,&len)) return(NULL); | ||
208 | if ( (strcmp(nm,name) == 0) || | ||
209 | ((strcmp(nm,PEM_STRING_RSA) == 0) && | ||
210 | (strcmp(name,PEM_STRING_EVP_PKEY) == 0)) || | ||
211 | ((strcmp(nm,PEM_STRING_DSA) == 0) && | ||
212 | (strcmp(name,PEM_STRING_EVP_PKEY) == 0)) || | ||
213 | ((strcmp(nm,PEM_STRING_X509_OLD) == 0) && | ||
214 | (strcmp(name,PEM_STRING_X509) == 0)) || | ||
215 | ((strcmp(nm,PEM_STRING_X509_REQ_OLD) == 0) && | ||
216 | (strcmp(name,PEM_STRING_X509_REQ) == 0)) | ||
217 | ) | ||
218 | break; | ||
219 | Free(nm); | ||
220 | Free(header); | ||
221 | Free(data); | ||
222 | } | ||
223 | if (!PEM_get_EVP_CIPHER_INFO(header,&cipher)) goto err; | ||
224 | if (!PEM_do_header(&cipher,data,&len,cb)) goto err; | ||
225 | p=data; | ||
226 | if (strcmp(name,PEM_STRING_EVP_PKEY) == 0) | ||
227 | { | ||
228 | if (strcmp(nm,PEM_STRING_RSA) == 0) | ||
229 | ret=d2i(EVP_PKEY_RSA,x,&p,len); | ||
230 | else if (strcmp(nm,PEM_STRING_DSA) == 0) | ||
231 | ret=d2i(EVP_PKEY_DSA,x,&p,len); | ||
232 | } | ||
233 | else | ||
234 | ret=d2i(x,&p,len); | ||
235 | if (ret == NULL) | ||
236 | PEMerr(PEM_F_PEM_ASN1_READ_BIO,ERR_R_ASN1_LIB); | ||
237 | err: | ||
238 | Free(nm); | ||
239 | Free(header); | ||
240 | Free(data); | ||
241 | return(ret); | ||
242 | } | ||
243 | |||
244 | #ifndef NO_FP_API | ||
245 | int PEM_ASN1_write(i2d,name,fp, x, enc, kstr, klen, callback) | ||
246 | int (*i2d)(); | ||
247 | char *name; | ||
248 | FILE *fp; | ||
249 | char *x; | ||
250 | EVP_CIPHER *enc; | ||
251 | unsigned char *kstr; | ||
252 | int klen; | ||
253 | int (*callback)(); | ||
254 | { | ||
255 | BIO *b; | ||
256 | int ret; | ||
257 | |||
258 | if ((b=BIO_new(BIO_s_file())) == NULL) | ||
259 | { | ||
260 | PEMerr(PEM_F_PEM_ASN1_WRITE,ERR_R_BUF_LIB); | ||
261 | return(0); | ||
262 | } | ||
263 | BIO_set_fp(b,fp,BIO_NOCLOSE); | ||
264 | ret=PEM_ASN1_write_bio(i2d,name,b,x,enc,kstr,klen,callback); | ||
265 | BIO_free(b); | ||
266 | return(ret); | ||
267 | } | ||
268 | #endif | ||
269 | |||
270 | int PEM_ASN1_write_bio(i2d,name,bp, x, enc, kstr, klen, callback) | ||
271 | int (*i2d)(); | ||
272 | char *name; | ||
273 | BIO *bp; | ||
274 | char *x; | ||
275 | EVP_CIPHER *enc; | ||
276 | unsigned char *kstr; | ||
277 | int klen; | ||
278 | int (*callback)(); | ||
279 | { | ||
280 | EVP_CIPHER_CTX ctx; | ||
281 | int dsize=0,i,j,ret=0; | ||
282 | unsigned char *p,*data=NULL; | ||
283 | char *objstr=NULL; | ||
284 | #define PEM_BUFSIZE 1024 | ||
285 | char buf[PEM_BUFSIZE]; | ||
286 | unsigned char key[EVP_MAX_KEY_LENGTH]; | ||
287 | unsigned char iv[EVP_MAX_IV_LENGTH]; | ||
288 | |||
289 | if (enc != NULL) | ||
290 | { | ||
291 | objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc)); | ||
292 | if (objstr == NULL) | ||
293 | { | ||
294 | PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER); | ||
295 | goto err; | ||
296 | } | ||
297 | } | ||
298 | |||
299 | if ((dsize=i2d(x,NULL)) < 0) | ||
300 | { | ||
301 | PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE); | ||
302 | dsize=0; | ||
303 | goto err; | ||
304 | } | ||
305 | /* dzise + 8 bytes are needed */ | ||
306 | data=(unsigned char *)Malloc((unsigned int)dsize+20); | ||
307 | if (data == NULL) | ||
308 | { | ||
309 | PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE); | ||
310 | goto err; | ||
311 | } | ||
312 | p=data; | ||
313 | i=i2d(x,&p); | ||
314 | |||
315 | if (enc != NULL) | ||
316 | { | ||
317 | if (kstr == NULL) | ||
318 | { | ||
319 | if (callback == NULL) | ||
320 | klen=def_callback(buf,PEM_BUFSIZE,1); | ||
321 | else | ||
322 | klen=(*callback)(buf,PEM_BUFSIZE,1); | ||
323 | if (klen <= 0) | ||
324 | { | ||
325 | PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_READ_KEY); | ||
326 | goto err; | ||
327 | } | ||
328 | kstr=(unsigned char *)buf; | ||
329 | } | ||
330 | RAND_seed(data,i);/* put in the RSA key. */ | ||
331 | RAND_bytes(iv,8); /* Generate a salt */ | ||
332 | /* The 'iv' is used as the iv and as a salt. It is | ||
333 | * NOT taken from the BytesToKey function */ | ||
334 | EVP_BytesToKey(enc,EVP_md5(),iv,kstr,klen,1,key,NULL); | ||
335 | |||
336 | if (kstr == (unsigned char *)buf) memset(buf,0,PEM_BUFSIZE); | ||
337 | |||
338 | buf[0]='\0'; | ||
339 | PEM_proc_type(buf,PEM_TYPE_ENCRYPTED); | ||
340 | PEM_dek_info(buf,objstr,8,(char *)iv); | ||
341 | /* k=strlen(buf); */ | ||
342 | |||
343 | EVP_EncryptInit(&ctx,enc,key,iv); | ||
344 | EVP_EncryptUpdate(&ctx,data,&j,data,i); | ||
345 | EVP_EncryptFinal(&ctx,&(data[j]),&i); | ||
346 | i+=j; | ||
347 | ret=1; | ||
348 | } | ||
349 | else | ||
350 | { | ||
351 | ret=1; | ||
352 | buf[0]='\0'; | ||
353 | } | ||
354 | i=PEM_write_bio(bp,name,buf,data,i); | ||
355 | if (i <= 0) ret=0; | ||
356 | err: | ||
357 | memset(key,0,sizeof(key)); | ||
358 | memset(iv,0,sizeof(iv)); | ||
359 | memset((char *)&ctx,0,sizeof(ctx)); | ||
360 | memset(buf,0,PEM_BUFSIZE); | ||
361 | memset(data,0,(unsigned int)dsize); | ||
362 | Free(data); | ||
363 | return(ret); | ||
364 | } | ||
365 | |||
366 | int PEM_do_header(cipher, data, plen, callback) | ||
367 | EVP_CIPHER_INFO *cipher; | ||
368 | unsigned char *data; | ||
369 | long *plen; | ||
370 | int (*callback)(); | ||
371 | { | ||
372 | int i,j,o,klen; | ||
373 | long len; | ||
374 | EVP_CIPHER_CTX ctx; | ||
375 | unsigned char key[EVP_MAX_KEY_LENGTH]; | ||
376 | char buf[PEM_BUFSIZE]; | ||
377 | |||
378 | len= *plen; | ||
379 | |||
380 | if (cipher->cipher == NULL) return(1); | ||
381 | if (callback == NULL) | ||
382 | klen=def_callback(buf,PEM_BUFSIZE,0); | ||
383 | else | ||
384 | klen=callback(buf,PEM_BUFSIZE,0); | ||
385 | if (klen <= 0) | ||
386 | { | ||
387 | PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_PASSWORD_READ); | ||
388 | return(0); | ||
389 | } | ||
390 | EVP_BytesToKey(cipher->cipher,EVP_md5(),&(cipher->iv[0]), | ||
391 | (unsigned char *)buf,klen,1,key,NULL); | ||
392 | |||
393 | j=(int)len; | ||
394 | EVP_DecryptInit(&ctx,cipher->cipher,key,&(cipher->iv[0])); | ||
395 | EVP_DecryptUpdate(&ctx,data,&i,data,j); | ||
396 | o=EVP_DecryptFinal(&ctx,&(data[i]),&j); | ||
397 | EVP_CIPHER_CTX_cleanup(&ctx); | ||
398 | memset((char *)buf,0,sizeof(buf)); | ||
399 | memset((char *)key,0,sizeof(key)); | ||
400 | j+=i; | ||
401 | if (!o) | ||
402 | { | ||
403 | PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_DECRYPT); | ||
404 | return(0); | ||
405 | } | ||
406 | *plen=j; | ||
407 | return(1); | ||
408 | } | ||
409 | |||
410 | int PEM_get_EVP_CIPHER_INFO(header,cipher) | ||
411 | char *header; | ||
412 | EVP_CIPHER_INFO *cipher; | ||
413 | { | ||
414 | int o; | ||
415 | EVP_CIPHER *enc=NULL; | ||
416 | char *p,c; | ||
417 | |||
418 | cipher->cipher=NULL; | ||
419 | if ((header == NULL) || (*header == '\0') || (*header == '\n')) | ||
420 | return(1); | ||
421 | if (strncmp(header,"Proc-Type: ",11) != 0) | ||
422 | { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_PROC_TYPE); return(0); } | ||
423 | header+=11; | ||
424 | if (*header != '4') return(0); header++; | ||
425 | if (*header != ',') return(0); header++; | ||
426 | if (strncmp(header,"ENCRYPTED",9) != 0) | ||
427 | { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_ENCRYPTED); return(0); } | ||
428 | for (; (*header != '\n') && (*header != '\0'); header++) | ||
429 | ; | ||
430 | if (*header == '\0') | ||
431 | { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_SHORT_HEADER); return(0); } | ||
432 | header++; | ||
433 | if (strncmp(header,"DEK-Info: ",10) != 0) | ||
434 | { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_DEK_INFO); return(0); } | ||
435 | header+=10; | ||
436 | |||
437 | p=header; | ||
438 | for (;;) | ||
439 | { | ||
440 | c= *header; | ||
441 | if (!( ((c >= 'A') && (c <= 'Z')) || (c == '-') || | ||
442 | ((c >= '0') && (c <= '9')))) | ||
443 | break; | ||
444 | header++; | ||
445 | } | ||
446 | *header='\0'; | ||
447 | o=OBJ_sn2nid(p); | ||
448 | cipher->cipher=enc=EVP_get_cipherbyname(p); | ||
449 | *header=c; | ||
450 | header++; | ||
451 | |||
452 | if (enc == NULL) | ||
453 | { | ||
454 | PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_UNSUPPORTED_ENCRYPTION); | ||
455 | return(0); | ||
456 | } | ||
457 | if (!load_iv((unsigned char **)&header,&(cipher->iv[0]),8)) return(0); | ||
458 | |||
459 | return(1); | ||
460 | } | ||
461 | |||
462 | static int load_iv(fromp,to,num) | ||
463 | unsigned char **fromp,*to; | ||
464 | int num; | ||
465 | { | ||
466 | int v,i; | ||
467 | unsigned char *from; | ||
468 | |||
469 | from= *fromp; | ||
470 | for (i=0; i<num; i++) to[i]=0; | ||
471 | num*=2; | ||
472 | for (i=0; i<num; i++) | ||
473 | { | ||
474 | if ((*from >= '0') && (*from <= '9')) | ||
475 | v= *from-'0'; | ||
476 | else if ((*from >= 'A') && (*from <= 'F')) | ||
477 | v= *from-'A'+10; | ||
478 | else if ((*from >= 'a') && (*from <= 'f')) | ||
479 | v= *from-'a'+10; | ||
480 | else | ||
481 | { | ||
482 | PEMerr(PEM_F_LOAD_IV,PEM_R_BAD_IV_CHARS); | ||
483 | return(0); | ||
484 | } | ||
485 | from++; | ||
486 | to[i/2]|=v<<(long)((!(i&1))*4); | ||
487 | } | ||
488 | |||
489 | *fromp=from; | ||
490 | return(1); | ||
491 | } | ||
492 | |||
493 | #ifndef NO_FP_API | ||
494 | int PEM_write(fp, name, header, data,len) | ||
495 | FILE *fp; | ||
496 | char *name; | ||
497 | char *header; | ||
498 | unsigned char *data; | ||
499 | long len; | ||
500 | { | ||
501 | BIO *b; | ||
502 | int ret; | ||
503 | |||
504 | if ((b=BIO_new(BIO_s_file())) == NULL) | ||
505 | { | ||
506 | PEMerr(PEM_F_PEM_WRITE,ERR_R_BUF_LIB); | ||
507 | return(0); | ||
508 | } | ||
509 | BIO_set_fp(b,fp,BIO_NOCLOSE); | ||
510 | ret=PEM_write_bio(b, name, header, data,len); | ||
511 | BIO_free(b); | ||
512 | return(ret); | ||
513 | } | ||
514 | #endif | ||
515 | |||
516 | int PEM_write_bio(bp, name, header, data,len) | ||
517 | BIO *bp; | ||
518 | char *name; | ||
519 | char *header; | ||
520 | unsigned char *data; | ||
521 | long len; | ||
522 | { | ||
523 | int nlen,n,i,j,outl; | ||
524 | unsigned char *buf; | ||
525 | EVP_ENCODE_CTX ctx; | ||
526 | int reason=ERR_R_BUF_LIB; | ||
527 | |||
528 | EVP_EncodeInit(&ctx); | ||
529 | nlen=strlen(name); | ||
530 | |||
531 | if ( (BIO_write(bp,"-----BEGIN ",11) != 11) || | ||
532 | (BIO_write(bp,name,nlen) != nlen) || | ||
533 | (BIO_write(bp,"-----\n",6) != 6)) | ||
534 | goto err; | ||
535 | |||
536 | i=strlen(header); | ||
537 | if (i > 0) | ||
538 | { | ||
539 | if ( (BIO_write(bp,header,i) != i) || | ||
540 | (BIO_write(bp,"\n",1) != 1)) | ||
541 | goto err; | ||
542 | } | ||
543 | |||
544 | buf=(unsigned char *)Malloc(PEM_BUFSIZE*8); | ||
545 | if (buf == NULL) | ||
546 | { | ||
547 | reason=ERR_R_MALLOC_FAILURE; | ||
548 | goto err; | ||
549 | } | ||
550 | |||
551 | i=j=0; | ||
552 | while (len > 0) | ||
553 | { | ||
554 | n=(int)((len>(PEM_BUFSIZE*5))?(PEM_BUFSIZE*5):len); | ||
555 | EVP_EncodeUpdate(&ctx,buf,&outl,&(data[j]),n); | ||
556 | if ((outl) && (BIO_write(bp,(char *)buf,outl) != outl)) | ||
557 | goto err; | ||
558 | i+=outl; | ||
559 | len-=n; | ||
560 | j+=n; | ||
561 | } | ||
562 | EVP_EncodeFinal(&ctx,buf,&outl); | ||
563 | if ((outl > 0) && (BIO_write(bp,(char *)buf,outl) != outl)) goto err; | ||
564 | Free(buf); | ||
565 | if ( (BIO_write(bp,"-----END ",9) != 9) || | ||
566 | (BIO_write(bp,name,nlen) != nlen) || | ||
567 | (BIO_write(bp,"-----\n",6) != 6)) | ||
568 | goto err; | ||
569 | return(i+outl); | ||
570 | err: | ||
571 | PEMerr(PEM_F_PEM_WRITE_BIO,reason); | ||
572 | return(0); | ||
573 | } | ||
574 | |||
575 | #ifndef NO_FP_API | ||
576 | int PEM_read(fp, name, header, data,len) | ||
577 | FILE *fp; | ||
578 | char **name; | ||
579 | char **header; | ||
580 | unsigned char **data; | ||
581 | long *len; | ||
582 | { | ||
583 | BIO *b; | ||
584 | int ret; | ||
585 | |||
586 | if ((b=BIO_new(BIO_s_file())) == NULL) | ||
587 | { | ||
588 | PEMerr(PEM_F_PEM_READ,ERR_R_BUF_LIB); | ||
589 | return(0); | ||
590 | } | ||
591 | BIO_set_fp(b,fp,BIO_NOCLOSE); | ||
592 | ret=PEM_read_bio(b, name, header, data,len); | ||
593 | BIO_free(b); | ||
594 | return(ret); | ||
595 | } | ||
596 | #endif | ||
597 | |||
598 | int PEM_read_bio(bp, name, header, data, len) | ||
599 | BIO *bp; | ||
600 | char **name; | ||
601 | char **header; | ||
602 | unsigned char **data; | ||
603 | long *len; | ||
604 | { | ||
605 | EVP_ENCODE_CTX ctx; | ||
606 | int end=0,i,k,bl=0,hl=0,nohead=0; | ||
607 | char buf[256]; | ||
608 | BUF_MEM *nameB; | ||
609 | BUF_MEM *headerB; | ||
610 | BUF_MEM *dataB,*tmpB; | ||
611 | |||
612 | nameB=BUF_MEM_new(); | ||
613 | headerB=BUF_MEM_new(); | ||
614 | dataB=BUF_MEM_new(); | ||
615 | if ((nameB == NULL) || (headerB == NULL) || (dataB == NULL)) | ||
616 | { | ||
617 | PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); | ||
618 | return(0); | ||
619 | } | ||
620 | |||
621 | buf[254]='\0'; | ||
622 | for (;;) | ||
623 | { | ||
624 | i=BIO_gets(bp,buf,254); | ||
625 | |||
626 | if (i <= 0) | ||
627 | { | ||
628 | PEMerr(PEM_F_PEM_READ_BIO,PEM_R_NO_START_LINE); | ||
629 | goto err; | ||
630 | } | ||
631 | |||
632 | while ((i >= 0) && (buf[i] <= ' ')) i--; | ||
633 | buf[++i]='\n'; buf[++i]='\0'; | ||
634 | |||
635 | if (strncmp(buf,"-----BEGIN ",11) == 0) | ||
636 | { | ||
637 | i=strlen(&(buf[11])); | ||
638 | |||
639 | if (strncmp(&(buf[11+i-6]),"-----\n",6) != 0) | ||
640 | continue; | ||
641 | if (!BUF_MEM_grow(nameB,i+9)) | ||
642 | { | ||
643 | PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); | ||
644 | goto err; | ||
645 | } | ||
646 | strncpy(nameB->data,&(buf[11]),(unsigned int)i-6); | ||
647 | nameB->data[i-6]='\0'; | ||
648 | break; | ||
649 | } | ||
650 | } | ||
651 | hl=0; | ||
652 | if (!BUF_MEM_grow(headerB,256)) | ||
653 | { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; } | ||
654 | headerB->data[0]='\0'; | ||
655 | for (;;) | ||
656 | { | ||
657 | i=BIO_gets(bp,buf,254); | ||
658 | if (i <= 0) break; | ||
659 | |||
660 | while ((i >= 0) && (buf[i] <= ' ')) i--; | ||
661 | buf[++i]='\n'; buf[++i]='\0'; | ||
662 | |||
663 | if (buf[0] == '\n') break; | ||
664 | if (!BUF_MEM_grow(headerB,hl+i+9)) | ||
665 | { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; } | ||
666 | if (strncmp(buf,"-----END ",9) == 0) | ||
667 | { | ||
668 | nohead=1; | ||
669 | break; | ||
670 | } | ||
671 | strncpy(&(headerB->data[hl]),buf,(unsigned int)i); | ||
672 | headerB->data[hl+i]='\0'; | ||
673 | hl+=i; | ||
674 | } | ||
675 | |||
676 | bl=0; | ||
677 | if (!BUF_MEM_grow(dataB,1024)) | ||
678 | { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; } | ||
679 | dataB->data[0]='\0'; | ||
680 | if (!nohead) | ||
681 | { | ||
682 | for (;;) | ||
683 | { | ||
684 | i=BIO_gets(bp,buf,254); | ||
685 | if (i <= 0) break; | ||
686 | |||
687 | while ((i >= 0) && (buf[i] <= ' ')) i--; | ||
688 | buf[++i]='\n'; buf[++i]='\0'; | ||
689 | |||
690 | if (i != 65) end=1; | ||
691 | if (strncmp(buf,"-----END ",9) == 0) | ||
692 | break; | ||
693 | if (i > 65) break; | ||
694 | if (!BUF_MEM_grow(dataB,i+bl+9)) | ||
695 | { | ||
696 | PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); | ||
697 | goto err; | ||
698 | } | ||
699 | strncpy(&(dataB->data[bl]),buf,(unsigned int)i); | ||
700 | dataB->data[bl+i]='\0'; | ||
701 | bl+=i; | ||
702 | if (end) | ||
703 | { | ||
704 | buf[0]='\0'; | ||
705 | i=BIO_gets(bp,buf,254); | ||
706 | if (i <= 0) break; | ||
707 | |||
708 | while ((i >= 0) && (buf[i] <= ' ')) i--; | ||
709 | buf[++i]='\n'; buf[++i]='\0'; | ||
710 | |||
711 | break; | ||
712 | } | ||
713 | } | ||
714 | } | ||
715 | else | ||
716 | { | ||
717 | tmpB=headerB; | ||
718 | headerB=dataB; | ||
719 | dataB=tmpB; | ||
720 | bl=hl; | ||
721 | } | ||
722 | i=strlen(nameB->data); | ||
723 | if ( (strncmp(buf,"-----END ",9) != 0) || | ||
724 | (strncmp(nameB->data,&(buf[9]),(unsigned int)i) != 0) || | ||
725 | (strncmp(&(buf[9+i]),"-----\n",6) != 0)) | ||
726 | { | ||
727 | PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_END_LINE); | ||
728 | goto err; | ||
729 | } | ||
730 | |||
731 | EVP_DecodeInit(&ctx); | ||
732 | i=EVP_DecodeUpdate(&ctx, | ||
733 | (unsigned char *)dataB->data,&bl, | ||
734 | (unsigned char *)dataB->data,bl); | ||
735 | if (i < 0) | ||
736 | { | ||
737 | PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE); | ||
738 | goto err; | ||
739 | } | ||
740 | i=EVP_DecodeFinal(&ctx,(unsigned char *)&(dataB->data[bl]),&k); | ||
741 | if (i < 0) | ||
742 | { | ||
743 | PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE); | ||
744 | goto err; | ||
745 | } | ||
746 | bl+=k; | ||
747 | |||
748 | if (bl == 0) goto err; | ||
749 | *name=nameB->data; | ||
750 | *header=headerB->data; | ||
751 | *data=(unsigned char *)dataB->data; | ||
752 | *len=bl; | ||
753 | Free(nameB); | ||
754 | Free(headerB); | ||
755 | Free(dataB); | ||
756 | return(1); | ||
757 | err: | ||
758 | BUF_MEM_free(nameB); | ||
759 | BUF_MEM_free(headerB); | ||
760 | BUF_MEM_free(dataB); | ||
761 | return(0); | ||
762 | } | ||