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-rw-r--r--src/lib/libcrypto/pem/pem_lib.c776
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diff --git a/src/lib/libcrypto/pem/pem_lib.c b/src/lib/libcrypto/pem/pem_lib.c
deleted file mode 100644
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--- a/src/lib/libcrypto/pem/pem_lib.c
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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 <openssl/buffer.h>
62#include <openssl/objects.h>
63#include <openssl/evp.h>
64#include <openssl/rand.h>
65#include <openssl/x509.h>
66#include <openssl/pem.h>
67#include <openssl/pkcs12.h>
68#ifndef OPENSSL_NO_DES
69#include <openssl/des.h>
70#endif
71
72const char *PEM_version="PEM" OPENSSL_VERSION_PTEXT;
73
74#define MIN_LENGTH 4
75
76static int load_iv(char **fromp,unsigned char *to, int num);
77static int check_pem(const char *nm, const char *name);
78
79int PEM_def_callback(char *buf, int num, int w, void *key)
80 {
81#ifdef OPENSSL_NO_FP_API
82 /* We should not ever call the default callback routine from
83 * windows. */
84 PEMerr(PEM_F_DEF_CALLBACK,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
85 return(-1);
86#else
87 int i,j;
88 const char *prompt;
89 if(key) {
90 i=strlen(key);
91 i=(i > num)?num:i;
92 memcpy(buf,key,i);
93 return(i);
94 }
95
96 prompt=EVP_get_pw_prompt();
97 if (prompt == NULL)
98 prompt="Enter PEM pass phrase:";
99
100 for (;;)
101 {
102 i=EVP_read_pw_string(buf,num,prompt,w);
103 if (i != 0)
104 {
105 PEMerr(PEM_F_DEF_CALLBACK,PEM_R_PROBLEMS_GETTING_PASSWORD);
106 memset(buf,0,(unsigned int)num);
107 return(-1);
108 }
109 j=strlen(buf);
110 if (j < MIN_LENGTH)
111 {
112 fprintf(stderr,"phrase is too short, needs to be at least %d chars\n",MIN_LENGTH);
113 }
114 else
115 break;
116 }
117 return(j);
118#endif
119 }
120
121void PEM_proc_type(char *buf, int type)
122 {
123 const char *str;
124
125 if (type == PEM_TYPE_ENCRYPTED)
126 str="ENCRYPTED";
127 else if (type == PEM_TYPE_MIC_CLEAR)
128 str="MIC-CLEAR";
129 else if (type == PEM_TYPE_MIC_ONLY)
130 str="MIC-ONLY";
131 else
132 str="BAD-TYPE";
133
134 BUF_strlcat(buf,"Proc-Type: 4,",PEM_BUFSIZE);
135 BUF_strlcat(buf,str,PEM_BUFSIZE);
136 BUF_strlcat(buf,"\n",PEM_BUFSIZE);
137 }
138
139void PEM_dek_info(char *buf, const char *type, int len, char *str)
140 {
141 static const unsigned char map[17]="0123456789ABCDEF";
142 long i;
143 int j;
144
145 BUF_strlcat(buf,"DEK-Info: ",PEM_BUFSIZE);
146 BUF_strlcat(buf,type,PEM_BUFSIZE);
147 BUF_strlcat(buf,",",PEM_BUFSIZE);
148 j=strlen(buf);
149 if (j + (len * 2) + 1 > PEM_BUFSIZE)
150 return;
151 for (i=0; i<len; i++)
152 {
153 buf[j+i*2] =map[(str[i]>>4)&0x0f];
154 buf[j+i*2+1]=map[(str[i] )&0x0f];
155 }
156 buf[j+i*2]='\n';
157 buf[j+i*2+1]='\0';
158 }
159
160#ifndef OPENSSL_NO_FP_API
161char *PEM_ASN1_read(char *(*d2i)(), const char *name, FILE *fp, char **x,
162 pem_password_cb *cb, void *u)
163 {
164 BIO *b;
165 char *ret;
166
167 if ((b=BIO_new(BIO_s_file())) == NULL)
168 {
169 PEMerr(PEM_F_PEM_ASN1_READ,ERR_R_BUF_LIB);
170 return(0);
171 }
172 BIO_set_fp(b,fp,BIO_NOCLOSE);
173 ret=PEM_ASN1_read_bio(d2i,name,b,x,cb,u);
174 BIO_free(b);
175 return(ret);
176 }
177#endif
178
179static int check_pem(const char *nm, const char *name)
180{
181 /* Normal matching nm and name */
182 if (!strcmp(nm,name)) return 1;
183
184 /* Make PEM_STRING_EVP_PKEY match any private key */
185
186 if(!strcmp(nm,PEM_STRING_PKCS8) &&
187 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
188
189 if(!strcmp(nm,PEM_STRING_PKCS8INF) &&
190 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
191
192 if(!strcmp(nm,PEM_STRING_RSA) &&
193 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
194
195 if(!strcmp(nm,PEM_STRING_DSA) &&
196 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
197
198 /* Permit older strings */
199
200 if(!strcmp(nm,PEM_STRING_X509_OLD) &&
201 !strcmp(name,PEM_STRING_X509)) return 1;
202
203 if(!strcmp(nm,PEM_STRING_X509_REQ_OLD) &&
204 !strcmp(name,PEM_STRING_X509_REQ)) return 1;
205
206 /* Allow normal certs to be read as trusted certs */
207 if(!strcmp(nm,PEM_STRING_X509) &&
208 !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
209
210 if(!strcmp(nm,PEM_STRING_X509_OLD) &&
211 !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
212
213 /* Some CAs use PKCS#7 with CERTIFICATE headers */
214 if(!strcmp(nm, PEM_STRING_X509) &&
215 !strcmp(name, PEM_STRING_PKCS7)) return 1;
216
217 return 0;
218}
219
220int PEM_bytes_read_bio(unsigned char **pdata, long *plen, char **pnm, const char *name, BIO *bp,
221 pem_password_cb *cb, void *u)
222 {
223 EVP_CIPHER_INFO cipher;
224 char *nm=NULL,*header=NULL;
225 unsigned char *data=NULL;
226 long len;
227 int ret = 0;
228
229 for (;;)
230 {
231 if (!PEM_read_bio(bp,&nm,&header,&data,&len)) {
232 if(ERR_GET_REASON(ERR_peek_error()) ==
233 PEM_R_NO_START_LINE)
234 ERR_add_error_data(2, "Expecting: ", name);
235 return 0;
236 }
237 if(check_pem(nm, name)) break;
238 OPENSSL_free(nm);
239 OPENSSL_free(header);
240 OPENSSL_free(data);
241 }
242 if (!PEM_get_EVP_CIPHER_INFO(header,&cipher)) goto err;
243 if (!PEM_do_header(&cipher,data,&len,cb,u)) goto err;
244
245 *pdata = data;
246 *plen = len;
247
248 if (pnm)
249 *pnm = nm;
250
251 ret = 1;
252
253err:
254 if (!ret || !pnm) OPENSSL_free(nm);
255 OPENSSL_free(header);
256 if (!ret) OPENSSL_free(data);
257 return ret;
258 }
259
260#ifndef OPENSSL_NO_FP_API
261int PEM_ASN1_write(int (*i2d)(), const char *name, FILE *fp, char *x,
262 const EVP_CIPHER *enc, unsigned char *kstr, int klen,
263 pem_password_cb *callback, void *u)
264 {
265 BIO *b;
266 int ret;
267
268 if ((b=BIO_new(BIO_s_file())) == NULL)
269 {
270 PEMerr(PEM_F_PEM_ASN1_WRITE,ERR_R_BUF_LIB);
271 return(0);
272 }
273 BIO_set_fp(b,fp,BIO_NOCLOSE);
274 ret=PEM_ASN1_write_bio(i2d,name,b,x,enc,kstr,klen,callback,u);
275 BIO_free(b);
276 return(ret);
277 }
278#endif
279
280int PEM_ASN1_write_bio(int (*i2d)(), const char *name, BIO *bp, char *x,
281 const EVP_CIPHER *enc, unsigned char *kstr, int klen,
282 pem_password_cb *callback, void *u)
283 {
284 EVP_CIPHER_CTX ctx;
285 int dsize=0,i,j,ret=0;
286 unsigned char *p,*data=NULL;
287 const char *objstr=NULL;
288 char buf[PEM_BUFSIZE];
289 unsigned char key[EVP_MAX_KEY_LENGTH];
290 unsigned char iv[EVP_MAX_IV_LENGTH];
291
292 if (enc != NULL)
293 {
294 objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
295 if (objstr == NULL)
296 {
297 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
298 goto err;
299 }
300 }
301
302 if ((dsize=i2d(x,NULL)) < 0)
303 {
304 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_ASN1_LIB);
305 dsize=0;
306 goto err;
307 }
308 /* dzise + 8 bytes are needed */
309 /* actually it needs the cipher block size extra... */
310 data=(unsigned char *)OPENSSL_malloc((unsigned int)dsize+20);
311 if (data == NULL)
312 {
313 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE);
314 goto err;
315 }
316 p=data;
317 i=i2d(x,&p);
318
319 if (enc != NULL)
320 {
321 if (kstr == NULL)
322 {
323 if (callback == NULL)
324 klen=PEM_def_callback(buf,PEM_BUFSIZE,1,u);
325 else
326 klen=(*callback)(buf,PEM_BUFSIZE,1,u);
327 if (klen <= 0)
328 {
329 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_READ_KEY);
330 goto err;
331 }
332#ifdef CHARSET_EBCDIC
333 /* Convert the pass phrase from EBCDIC */
334 ebcdic2ascii(buf, buf, klen);
335#endif
336 kstr=(unsigned char *)buf;
337 }
338 RAND_add(data,i,0);/* put in the RSA key. */
339 OPENSSL_assert(enc->iv_len <= sizeof iv);
340 if (RAND_pseudo_bytes(iv,enc->iv_len) < 0) /* Generate a salt */
341 goto err;
342 /* The 'iv' is used as the iv and as a salt. It is
343 * NOT taken from the BytesToKey function */
344 EVP_BytesToKey(enc,EVP_md5(),iv,kstr,klen,1,key,NULL);
345
346 if (kstr == (unsigned char *)buf) OPENSSL_cleanse(buf,PEM_BUFSIZE);
347
348 OPENSSL_assert(strlen(objstr)+23+2*enc->iv_len+13 <= sizeof buf);
349
350 buf[0]='\0';
351 PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
352 PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv);
353 /* k=strlen(buf); */
354
355 EVP_CIPHER_CTX_init(&ctx);
356 EVP_EncryptInit_ex(&ctx,enc,NULL,key,iv);
357 EVP_EncryptUpdate(&ctx,data,&j,data,i);
358 EVP_EncryptFinal_ex(&ctx,&(data[j]),&i);
359 EVP_CIPHER_CTX_cleanup(&ctx);
360 i+=j;
361 ret=1;
362 }
363 else
364 {
365 ret=1;
366 buf[0]='\0';
367 }
368 i=PEM_write_bio(bp,name,buf,data,i);
369 if (i <= 0) ret=0;
370err:
371 OPENSSL_cleanse(key,sizeof(key));
372 OPENSSL_cleanse(iv,sizeof(iv));
373 OPENSSL_cleanse((char *)&ctx,sizeof(ctx));
374 OPENSSL_cleanse(buf,PEM_BUFSIZE);
375 if (data != NULL)
376 {
377 OPENSSL_cleanse(data,(unsigned int)dsize);
378 OPENSSL_free(data);
379 }
380 return(ret);
381 }
382
383int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *plen,
384 pem_password_cb *callback,void *u)
385 {
386 int i,j,o,klen;
387 long len;
388 EVP_CIPHER_CTX ctx;
389 unsigned char key[EVP_MAX_KEY_LENGTH];
390 char buf[PEM_BUFSIZE];
391
392 len= *plen;
393
394 if (cipher->cipher == NULL) return(1);
395 if (callback == NULL)
396 klen=PEM_def_callback(buf,PEM_BUFSIZE,0,u);
397 else
398 klen=callback(buf,PEM_BUFSIZE,0,u);
399 if (klen <= 0)
400 {
401 PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_PASSWORD_READ);
402 return(0);
403 }
404#ifdef CHARSET_EBCDIC
405 /* Convert the pass phrase from EBCDIC */
406 ebcdic2ascii(buf, buf, klen);
407#endif
408
409 EVP_BytesToKey(cipher->cipher,EVP_md5(),&(cipher->iv[0]),
410 (unsigned char *)buf,klen,1,key,NULL);
411
412 j=(int)len;
413 EVP_CIPHER_CTX_init(&ctx);
414 EVP_DecryptInit_ex(&ctx,cipher->cipher,NULL, key,&(cipher->iv[0]));
415 EVP_DecryptUpdate(&ctx,data,&i,data,j);
416 o=EVP_DecryptFinal_ex(&ctx,&(data[i]),&j);
417 EVP_CIPHER_CTX_cleanup(&ctx);
418 OPENSSL_cleanse((char *)buf,sizeof(buf));
419 OPENSSL_cleanse((char *)key,sizeof(key));
420 j+=i;
421 if (!o)
422 {
423 PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_DECRYPT);
424 return(0);
425 }
426 *plen=j;
427 return(1);
428 }
429
430int PEM_get_EVP_CIPHER_INFO(char *header, EVP_CIPHER_INFO *cipher)
431 {
432 int o;
433 const EVP_CIPHER *enc=NULL;
434 char *p,c;
435 char **header_pp = &header;
436
437 cipher->cipher=NULL;
438 if ((header == NULL) || (*header == '\0') || (*header == '\n'))
439 return(1);
440 if (strncmp(header,"Proc-Type: ",11) != 0)
441 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_PROC_TYPE); return(0); }
442 header+=11;
443 if (*header != '4') return(0); header++;
444 if (*header != ',') return(0); header++;
445 if (strncmp(header,"ENCRYPTED",9) != 0)
446 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_ENCRYPTED); return(0); }
447 for (; (*header != '\n') && (*header != '\0'); header++)
448 ;
449 if (*header == '\0')
450 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_SHORT_HEADER); return(0); }
451 header++;
452 if (strncmp(header,"DEK-Info: ",10) != 0)
453 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_DEK_INFO); return(0); }
454 header+=10;
455
456 p=header;
457 for (;;)
458 {
459 c= *header;
460#ifndef CHARSET_EBCDIC
461 if (!( ((c >= 'A') && (c <= 'Z')) || (c == '-') ||
462 ((c >= '0') && (c <= '9'))))
463 break;
464#else
465 if (!( isupper(c) || (c == '-') ||
466 isdigit(c)))
467 break;
468#endif
469 header++;
470 }
471 *header='\0';
472 o=OBJ_sn2nid(p);
473 cipher->cipher=enc=EVP_get_cipherbyname(p);
474 *header=c;
475 header++;
476
477 if (enc == NULL)
478 {
479 PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_UNSUPPORTED_ENCRYPTION);
480 return(0);
481 }
482 if (!load_iv(header_pp,&(cipher->iv[0]),enc->iv_len))
483 return(0);
484
485 return(1);
486 }
487
488static int load_iv(char **fromp, unsigned char *to, int num)
489 {
490 int v,i;
491 char *from;
492
493 from= *fromp;
494 for (i=0; i<num; i++) to[i]=0;
495 num*=2;
496 for (i=0; i<num; i++)
497 {
498 if ((*from >= '0') && (*from <= '9'))
499 v= *from-'0';
500 else if ((*from >= 'A') && (*from <= 'F'))
501 v= *from-'A'+10;
502 else if ((*from >= 'a') && (*from <= 'f'))
503 v= *from-'a'+10;
504 else
505 {
506 PEMerr(PEM_F_LOAD_IV,PEM_R_BAD_IV_CHARS);
507 return(0);
508 }
509 from++;
510 to[i/2]|=v<<(long)((!(i&1))*4);
511 }
512
513 *fromp=from;
514 return(1);
515 }
516
517#ifndef OPENSSL_NO_FP_API
518int PEM_write(FILE *fp, char *name, char *header, unsigned char *data,
519 long len)
520 {
521 BIO *b;
522 int ret;
523
524 if ((b=BIO_new(BIO_s_file())) == NULL)
525 {
526 PEMerr(PEM_F_PEM_WRITE,ERR_R_BUF_LIB);
527 return(0);
528 }
529 BIO_set_fp(b,fp,BIO_NOCLOSE);
530 ret=PEM_write_bio(b, name, header, data,len);
531 BIO_free(b);
532 return(ret);
533 }
534#endif
535
536int PEM_write_bio(BIO *bp, const char *name, char *header, unsigned char *data,
537 long len)
538 {
539 int nlen,n,i,j,outl;
540 unsigned char *buf = NULL;
541 EVP_ENCODE_CTX ctx;
542 int reason=ERR_R_BUF_LIB;
543
544 EVP_EncodeInit(&ctx);
545 nlen=strlen(name);
546
547 if ( (BIO_write(bp,"-----BEGIN ",11) != 11) ||
548 (BIO_write(bp,name,nlen) != nlen) ||
549 (BIO_write(bp,"-----\n",6) != 6))
550 goto err;
551
552 i=strlen(header);
553 if (i > 0)
554 {
555 if ( (BIO_write(bp,header,i) != i) ||
556 (BIO_write(bp,"\n",1) != 1))
557 goto err;
558 }
559
560 buf = OPENSSL_malloc(PEM_BUFSIZE*8);
561 if (buf == NULL)
562 {
563 reason=ERR_R_MALLOC_FAILURE;
564 goto err;
565 }
566
567 i=j=0;
568 while (len > 0)
569 {
570 n=(int)((len>(PEM_BUFSIZE*5))?(PEM_BUFSIZE*5):len);
571 EVP_EncodeUpdate(&ctx,buf,&outl,&(data[j]),n);
572 if ((outl) && (BIO_write(bp,(char *)buf,outl) != outl))
573 goto err;
574 i+=outl;
575 len-=n;
576 j+=n;
577 }
578 EVP_EncodeFinal(&ctx,buf,&outl);
579 if ((outl > 0) && (BIO_write(bp,(char *)buf,outl) != outl)) goto err;
580 OPENSSL_free(buf);
581 buf = NULL;
582 if ( (BIO_write(bp,"-----END ",9) != 9) ||
583 (BIO_write(bp,name,nlen) != nlen) ||
584 (BIO_write(bp,"-----\n",6) != 6))
585 goto err;
586 return(i+outl);
587err:
588 if (buf)
589 OPENSSL_free(buf);
590 PEMerr(PEM_F_PEM_WRITE_BIO,reason);
591 return(0);
592 }
593
594#ifndef OPENSSL_NO_FP_API
595int PEM_read(FILE *fp, char **name, char **header, unsigned char **data,
596 long *len)
597 {
598 BIO *b;
599 int ret;
600
601 if ((b=BIO_new(BIO_s_file())) == NULL)
602 {
603 PEMerr(PEM_F_PEM_READ,ERR_R_BUF_LIB);
604 return(0);
605 }
606 BIO_set_fp(b,fp,BIO_NOCLOSE);
607 ret=PEM_read_bio(b, name, header, data,len);
608 BIO_free(b);
609 return(ret);
610 }
611#endif
612
613int PEM_read_bio(BIO *bp, char **name, char **header, unsigned char **data,
614 long *len)
615 {
616 EVP_ENCODE_CTX ctx;
617 int end=0,i,k,bl=0,hl=0,nohead=0;
618 char buf[256];
619 BUF_MEM *nameB;
620 BUF_MEM *headerB;
621 BUF_MEM *dataB,*tmpB;
622
623 nameB=BUF_MEM_new();
624 headerB=BUF_MEM_new();
625 dataB=BUF_MEM_new();
626 if ((nameB == NULL) || (headerB == NULL) || (dataB == NULL))
627 {
628 BUF_MEM_free(nameB);
629 BUF_MEM_free(headerB);
630 BUF_MEM_free(dataB);
631 PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
632 return(0);
633 }
634
635 buf[254]='\0';
636 for (;;)
637 {
638 i=BIO_gets(bp,buf,254);
639
640 if (i <= 0)
641 {
642 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_NO_START_LINE);
643 goto err;
644 }
645
646 while ((i >= 0) && (buf[i] <= ' ')) i--;
647 buf[++i]='\n'; buf[++i]='\0';
648
649 if (strncmp(buf,"-----BEGIN ",11) == 0)
650 {
651 i=strlen(&(buf[11]));
652
653 if (strncmp(&(buf[11+i-6]),"-----\n",6) != 0)
654 continue;
655 if (!BUF_MEM_grow(nameB,i+9))
656 {
657 PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
658 goto err;
659 }
660 memcpy(nameB->data,&(buf[11]),i-6);
661 nameB->data[i-6]='\0';
662 break;
663 }
664 }
665 hl=0;
666 if (!BUF_MEM_grow(headerB,256))
667 { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
668 headerB->data[0]='\0';
669 for (;;)
670 {
671 i=BIO_gets(bp,buf,254);
672 if (i <= 0) break;
673
674 while ((i >= 0) && (buf[i] <= ' ')) i--;
675 buf[++i]='\n'; buf[++i]='\0';
676
677 if (buf[0] == '\n') break;
678 if (!BUF_MEM_grow(headerB,hl+i+9))
679 { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
680 if (strncmp(buf,"-----END ",9) == 0)
681 {
682 nohead=1;
683 break;
684 }
685 memcpy(&(headerB->data[hl]),buf,i);
686 headerB->data[hl+i]='\0';
687 hl+=i;
688 }
689
690 bl=0;
691 if (!BUF_MEM_grow(dataB,1024))
692 { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
693 dataB->data[0]='\0';
694 if (!nohead)
695 {
696 for (;;)
697 {
698 i=BIO_gets(bp,buf,254);
699 if (i <= 0) break;
700
701 while ((i >= 0) && (buf[i] <= ' ')) i--;
702 buf[++i]='\n'; buf[++i]='\0';
703
704 if (i != 65) end=1;
705 if (strncmp(buf,"-----END ",9) == 0)
706 break;
707 if (i > 65) break;
708 if (!BUF_MEM_grow_clean(dataB,i+bl+9))
709 {
710 PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
711 goto err;
712 }
713 memcpy(&(dataB->data[bl]),buf,i);
714 dataB->data[bl+i]='\0';
715 bl+=i;
716 if (end)
717 {
718 buf[0]='\0';
719 i=BIO_gets(bp,buf,254);
720 if (i <= 0) break;
721
722 while ((i >= 0) && (buf[i] <= ' ')) i--;
723 buf[++i]='\n'; buf[++i]='\0';
724
725 break;
726 }
727 }
728 }
729 else
730 {
731 tmpB=headerB;
732 headerB=dataB;
733 dataB=tmpB;
734 bl=hl;
735 }
736 i=strlen(nameB->data);
737 if ( (strncmp(buf,"-----END ",9) != 0) ||
738 (strncmp(nameB->data,&(buf[9]),i) != 0) ||
739 (strncmp(&(buf[9+i]),"-----\n",6) != 0))
740 {
741 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_END_LINE);
742 goto err;
743 }
744
745 EVP_DecodeInit(&ctx);
746 i=EVP_DecodeUpdate(&ctx,
747 (unsigned char *)dataB->data,&bl,
748 (unsigned char *)dataB->data,bl);
749 if (i < 0)
750 {
751 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE);
752 goto err;
753 }
754 i=EVP_DecodeFinal(&ctx,(unsigned char *)&(dataB->data[bl]),&k);
755 if (i < 0)
756 {
757 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE);
758 goto err;
759 }
760 bl+=k;
761
762 if (bl == 0) goto err;
763 *name=nameB->data;
764 *header=headerB->data;
765 *data=(unsigned char *)dataB->data;
766 *len=bl;
767 OPENSSL_free(nameB);
768 OPENSSL_free(headerB);
769 OPENSSL_free(dataB);
770 return(1);
771err:
772 BUF_MEM_free(nameB);
773 BUF_MEM_free(headerB);
774 BUF_MEM_free(dataB);
775 return(0);
776 }
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-22 17:24:13 +0000