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-rw-r--r--src/lib/libcrypto/pem/pem_lib.c762
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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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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(unsigned 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 strcat(buf,"Proc-Type: 4,");
135 strcat(buf,str);
136 strcat(buf,"\n");
137 }
138
139void PEM_dek_info(char *buf, const char *type, int len, char *str)
140 {
141 static unsigned char map[17]="0123456789ABCDEF";
142 long i;
143 int j;
144
145 strcat(buf,"DEK-Info: ");
146 strcat(buf,type);
147 strcat(buf,",");
148 j=strlen(buf);
149 for (i=0; i<len; i++)
150 {
151 buf[j+i*2] =map[(str[i]>>4)&0x0f];
152 buf[j+i*2+1]=map[(str[i] )&0x0f];
153 }
154 buf[j+i*2]='\n';
155 buf[j+i*2+1]='\0';
156 }
157
158#ifndef OPENSSL_NO_FP_API
159char *PEM_ASN1_read(char *(*d2i)(), const char *name, FILE *fp, char **x,
160 pem_password_cb *cb, void *u)
161 {
162 BIO *b;
163 char *ret;
164
165 if ((b=BIO_new(BIO_s_file())) == NULL)
166 {
167 PEMerr(PEM_F_PEM_ASN1_READ,ERR_R_BUF_LIB);
168 return(0);
169 }
170 BIO_set_fp(b,fp,BIO_NOCLOSE);
171 ret=PEM_ASN1_read_bio(d2i,name,b,x,cb,u);
172 BIO_free(b);
173 return(ret);
174 }
175#endif
176
177static int check_pem(const char *nm, const char *name)
178{
179 /* Normal matching nm and name */
180 if (!strcmp(nm,name)) return 1;
181
182 /* Make PEM_STRING_EVP_PKEY match any private key */
183
184 if(!strcmp(nm,PEM_STRING_PKCS8) &&
185 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
186
187 if(!strcmp(nm,PEM_STRING_PKCS8INF) &&
188 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
189
190 if(!strcmp(nm,PEM_STRING_RSA) &&
191 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
192
193 if(!strcmp(nm,PEM_STRING_DSA) &&
194 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
195
196 /* Permit older strings */
197
198 if(!strcmp(nm,PEM_STRING_X509_OLD) &&
199 !strcmp(name,PEM_STRING_X509)) return 1;
200
201 if(!strcmp(nm,PEM_STRING_X509_REQ_OLD) &&
202 !strcmp(name,PEM_STRING_X509_REQ)) return 1;
203
204 /* Allow normal certs to be read as trusted certs */
205 if(!strcmp(nm,PEM_STRING_X509) &&
206 !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
207
208 if(!strcmp(nm,PEM_STRING_X509_OLD) &&
209 !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
210
211 /* Some CAs use PKCS#7 with CERTIFICATE headers */
212 if(!strcmp(nm, PEM_STRING_X509) &&
213 !strcmp(name, PEM_STRING_PKCS7)) return 1;
214
215 return 0;
216}
217
218int PEM_bytes_read_bio(unsigned char **pdata, long *plen, char **pnm, const char *name, BIO *bp,
219 pem_password_cb *cb, void *u)
220 {
221 EVP_CIPHER_INFO cipher;
222 char *nm=NULL,*header=NULL;
223 unsigned char *data=NULL;
224 long len;
225 int ret = 0;
226
227 for (;;)
228 {
229 if (!PEM_read_bio(bp,&nm,&header,&data,&len)) {
230 if(ERR_GET_REASON(ERR_peek_error()) ==
231 PEM_R_NO_START_LINE)
232 ERR_add_error_data(2, "Expecting: ", name);
233 return 0;
234 }
235 if(check_pem(nm, name)) break;
236 OPENSSL_free(nm);
237 OPENSSL_free(header);
238 OPENSSL_free(data);
239 }
240 if (!PEM_get_EVP_CIPHER_INFO(header,&cipher)) goto err;
241 if (!PEM_do_header(&cipher,data,&len,cb,u)) goto err;
242
243 *pdata = data;
244 *plen = len;
245
246 if (pnm)
247 *pnm = nm;
248
249 ret = 1;
250
251err:
252 if (!pnm) OPENSSL_free(nm);
253 OPENSSL_free(header);
254 if (!ret) OPENSSL_free(data);
255 return ret;
256 }
257
258#ifndef OPENSSL_NO_FP_API
259int PEM_ASN1_write(int (*i2d)(), const char *name, FILE *fp, char *x,
260 const EVP_CIPHER *enc, unsigned char *kstr, int klen,
261 pem_password_cb *callback, void *u)
262 {
263 BIO *b;
264 int ret;
265
266 if ((b=BIO_new(BIO_s_file())) == NULL)
267 {
268 PEMerr(PEM_F_PEM_ASN1_WRITE,ERR_R_BUF_LIB);
269 return(0);
270 }
271 BIO_set_fp(b,fp,BIO_NOCLOSE);
272 ret=PEM_ASN1_write_bio(i2d,name,b,x,enc,kstr,klen,callback,u);
273 BIO_free(b);
274 return(ret);
275 }
276#endif
277
278int PEM_ASN1_write_bio(int (*i2d)(), const char *name, BIO *bp, char *x,
279 const EVP_CIPHER *enc, unsigned char *kstr, int klen,
280 pem_password_cb *callback, void *u)
281 {
282 EVP_CIPHER_CTX ctx;
283 int dsize=0,i,j,ret=0;
284 unsigned char *p,*data=NULL;
285 const char *objstr=NULL;
286 char buf[PEM_BUFSIZE];
287 unsigned char key[EVP_MAX_KEY_LENGTH];
288 unsigned char iv[EVP_MAX_IV_LENGTH];
289
290 if (enc != NULL)
291 {
292 objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
293 if (objstr == NULL)
294 {
295 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
296 goto err;
297 }
298 }
299
300 if ((dsize=i2d(x,NULL)) < 0)
301 {
302 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE);
303 dsize=0;
304 goto err;
305 }
306 /* dzise + 8 bytes are needed */
307 data=(unsigned char *)OPENSSL_malloc((unsigned int)dsize+20);
308 if (data == NULL)
309 {
310 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE);
311 goto err;
312 }
313 p=data;
314 i=i2d(x,&p);
315
316 if (enc != NULL)
317 {
318 if (kstr == NULL)
319 {
320 if (callback == NULL)
321 klen=PEM_def_callback(buf,PEM_BUFSIZE,1,u);
322 else
323 klen=(*callback)(buf,PEM_BUFSIZE,1,u);
324 if (klen <= 0)
325 {
326 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_READ_KEY);
327 goto err;
328 }
329#ifdef CHARSET_EBCDIC
330 /* Convert the pass phrase from EBCDIC */
331 ebcdic2ascii(buf, buf, klen);
332#endif
333 kstr=(unsigned char *)buf;
334 }
335 RAND_add(data,i,0);/* put in the RSA key. */
336 if (RAND_pseudo_bytes(iv,enc->iv_len) < 0) /* Generate a salt */
337 goto err;
338 /* The 'iv' is used as the iv and as a salt. It is
339 * NOT taken from the BytesToKey function */
340 EVP_BytesToKey(enc,EVP_md5(),iv,kstr,klen,1,key,NULL);
341
342 if (kstr == (unsigned char *)buf) memset(buf,0,PEM_BUFSIZE);
343
344 buf[0]='\0';
345 PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
346 PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv);
347 /* k=strlen(buf); */
348
349 EVP_CIPHER_CTX_init(&ctx);
350 EVP_EncryptInit_ex(&ctx,enc,NULL,key,iv);
351 EVP_EncryptUpdate(&ctx,data,&j,data,i);
352 EVP_EncryptFinal_ex(&ctx,&(data[j]),&i);
353 EVP_CIPHER_CTX_cleanup(&ctx);
354 i+=j;
355 ret=1;
356 }
357 else
358 {
359 ret=1;
360 buf[0]='\0';
361 }
362 i=PEM_write_bio(bp,name,buf,data,i);
363 if (i <= 0) ret=0;
364err:
365 memset(key,0,sizeof(key));
366 memset(iv,0,sizeof(iv));
367 memset((char *)&ctx,0,sizeof(ctx));
368 memset(buf,0,PEM_BUFSIZE);
369 if (data != NULL)
370 {
371 memset(data,0,(unsigned int)dsize);
372 OPENSSL_free(data);
373 }
374 return(ret);
375 }
376
377int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *plen,
378 pem_password_cb *callback,void *u)
379 {
380 int i,j,o,klen;
381 long len;
382 EVP_CIPHER_CTX ctx;
383 unsigned char key[EVP_MAX_KEY_LENGTH];
384 char buf[PEM_BUFSIZE];
385
386 len= *plen;
387
388 if (cipher->cipher == NULL) return(1);
389 if (callback == NULL)
390 klen=PEM_def_callback(buf,PEM_BUFSIZE,0,u);
391 else
392 klen=callback(buf,PEM_BUFSIZE,0,u);
393 if (klen <= 0)
394 {
395 PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_PASSWORD_READ);
396 return(0);
397 }
398#ifdef CHARSET_EBCDIC
399 /* Convert the pass phrase from EBCDIC */
400 ebcdic2ascii(buf, buf, klen);
401#endif
402
403 EVP_BytesToKey(cipher->cipher,EVP_md5(),&(cipher->iv[0]),
404 (unsigned char *)buf,klen,1,key,NULL);
405
406 j=(int)len;
407 EVP_CIPHER_CTX_init(&ctx);
408 EVP_DecryptInit_ex(&ctx,cipher->cipher,NULL, key,&(cipher->iv[0]));
409 EVP_DecryptUpdate(&ctx,data,&i,data,j);
410 o=EVP_DecryptFinal_ex(&ctx,&(data[i]),&j);
411 EVP_CIPHER_CTX_cleanup(&ctx);
412 memset((char *)buf,0,sizeof(buf));
413 memset((char *)key,0,sizeof(key));
414 j+=i;
415 if (!o)
416 {
417 PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_DECRYPT);
418 return(0);
419 }
420 *plen=j;
421 return(1);
422 }
423
424int PEM_get_EVP_CIPHER_INFO(char *header, EVP_CIPHER_INFO *cipher)
425 {
426 int o;
427 const EVP_CIPHER *enc=NULL;
428 char *p,c;
429
430 cipher->cipher=NULL;
431 if ((header == NULL) || (*header == '\0') || (*header == '\n'))
432 return(1);
433 if (strncmp(header,"Proc-Type: ",11) != 0)
434 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_PROC_TYPE); return(0); }
435 header+=11;
436 if (*header != '4') return(0); header++;
437 if (*header != ',') return(0); header++;
438 if (strncmp(header,"ENCRYPTED",9) != 0)
439 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_ENCRYPTED); return(0); }
440 for (; (*header != '\n') && (*header != '\0'); header++)
441 ;
442 if (*header == '\0')
443 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_SHORT_HEADER); return(0); }
444 header++;
445 if (strncmp(header,"DEK-Info: ",10) != 0)
446 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_DEK_INFO); return(0); }
447 header+=10;
448
449 p=header;
450 for (;;)
451 {
452 c= *header;
453#ifndef CHARSET_EBCDIC
454 if (!( ((c >= 'A') && (c <= 'Z')) || (c == '-') ||
455 ((c >= '0') && (c <= '9'))))
456 break;
457#else
458 if (!( isupper(c) || (c == '-') ||
459 isdigit(c)))
460 break;
461#endif
462 header++;
463 }
464 *header='\0';
465 o=OBJ_sn2nid(p);
466 cipher->cipher=enc=EVP_get_cipherbyname(p);
467 *header=c;
468 header++;
469
470 if (enc == NULL)
471 {
472 PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_UNSUPPORTED_ENCRYPTION);
473 return(0);
474 }
475 if (!load_iv((unsigned char **)&header,&(cipher->iv[0]),enc->iv_len)) return(0);
476
477 return(1);
478 }
479
480static int load_iv(unsigned char **fromp, unsigned char *to, int num)
481 {
482 int v,i;
483 unsigned char *from;
484
485 from= *fromp;
486 for (i=0; i<num; i++) to[i]=0;
487 num*=2;
488 for (i=0; i<num; i++)
489 {
490 if ((*from >= '0') && (*from <= '9'))
491 v= *from-'0';
492 else if ((*from >= 'A') && (*from <= 'F'))
493 v= *from-'A'+10;
494 else if ((*from >= 'a') && (*from <= 'f'))
495 v= *from-'a'+10;
496 else
497 {
498 PEMerr(PEM_F_LOAD_IV,PEM_R_BAD_IV_CHARS);
499 return(0);
500 }
501 from++;
502 to[i/2]|=v<<(long)((!(i&1))*4);
503 }
504
505 *fromp=from;
506 return(1);
507 }
508
509#ifndef OPENSSL_NO_FP_API
510int PEM_write(FILE *fp, char *name, char *header, unsigned char *data,
511 long len)
512 {
513 BIO *b;
514 int ret;
515
516 if ((b=BIO_new(BIO_s_file())) == NULL)
517 {
518 PEMerr(PEM_F_PEM_WRITE,ERR_R_BUF_LIB);
519 return(0);
520 }
521 BIO_set_fp(b,fp,BIO_NOCLOSE);
522 ret=PEM_write_bio(b, name, header, data,len);
523 BIO_free(b);
524 return(ret);
525 }
526#endif
527
528int PEM_write_bio(BIO *bp, const char *name, char *header, unsigned char *data,
529 long len)
530 {
531 int nlen,n,i,j,outl;
532 unsigned char *buf;
533 EVP_ENCODE_CTX ctx;
534 int reason=ERR_R_BUF_LIB;
535
536 EVP_EncodeInit(&ctx);
537 nlen=strlen(name);
538
539 if ( (BIO_write(bp,"-----BEGIN ",11) != 11) ||
540 (BIO_write(bp,name,nlen) != nlen) ||
541 (BIO_write(bp,"-----\n",6) != 6))
542 goto err;
543
544 i=strlen(header);
545 if (i > 0)
546 {
547 if ( (BIO_write(bp,header,i) != i) ||
548 (BIO_write(bp,"\n",1) != 1))
549 goto err;
550 }
551
552 buf=(unsigned char *)OPENSSL_malloc(PEM_BUFSIZE*8);
553 if (buf == NULL)
554 {
555 reason=ERR_R_MALLOC_FAILURE;
556 goto err;
557 }
558
559 i=j=0;
560 while (len > 0)
561 {
562 n=(int)((len>(PEM_BUFSIZE*5))?(PEM_BUFSIZE*5):len);
563 EVP_EncodeUpdate(&ctx,buf,&outl,&(data[j]),n);
564 if ((outl) && (BIO_write(bp,(char *)buf,outl) != outl))
565 goto err;
566 i+=outl;
567 len-=n;
568 j+=n;
569 }
570 EVP_EncodeFinal(&ctx,buf,&outl);
571 if ((outl > 0) && (BIO_write(bp,(char *)buf,outl) != outl)) goto err;
572 OPENSSL_free(buf);
573 if ( (BIO_write(bp,"-----END ",9) != 9) ||
574 (BIO_write(bp,name,nlen) != nlen) ||
575 (BIO_write(bp,"-----\n",6) != 6))
576 goto err;
577 return(i+outl);
578err:
579 PEMerr(PEM_F_PEM_WRITE_BIO,reason);
580 return(0);
581 }
582
583#ifndef OPENSSL_NO_FP_API
584int PEM_read(FILE *fp, char **name, char **header, unsigned char **data,
585 long *len)
586 {
587 BIO *b;
588 int ret;
589
590 if ((b=BIO_new(BIO_s_file())) == NULL)
591 {
592 PEMerr(PEM_F_PEM_READ,ERR_R_BUF_LIB);
593 return(0);
594 }
595 BIO_set_fp(b,fp,BIO_NOCLOSE);
596 ret=PEM_read_bio(b, name, header, data,len);
597 BIO_free(b);
598 return(ret);
599 }
600#endif
601
602int PEM_read_bio(BIO *bp, char **name, char **header, 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 memcpy(nameB->data,&(buf[11]),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 memcpy(&(headerB->data[hl]),buf,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 memcpy(&(dataB->data[bl]),buf,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]),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 OPENSSL_free(nameB);
754 OPENSSL_free(headerB);
755 OPENSSL_free(dataB);
756 return(1);
757err:
758 BUF_MEM_free(nameB);
759 BUF_MEM_free(headerB);
760 BUF_MEM_free(dataB);
761 return(0);
762 }
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-08-12 21:17:03 +0000