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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
index cbafefe416..0000000000
--- 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_PEM_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_PEM_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
161void *PEM_ASN1_read(d2i_of_void *d2i, const char *name, FILE *fp, void **x,
162 pem_password_cb *cb, void *u)
163 {
164 BIO *b;
165 void *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 if(!strcmp(nm,PEM_STRING_ECPRIVATEKEY) &&
199 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
200 /* Permit older strings */
201
202 if(!strcmp(nm,PEM_STRING_X509_OLD) &&
203 !strcmp(name,PEM_STRING_X509)) return 1;
204
205 if(!strcmp(nm,PEM_STRING_X509_REQ_OLD) &&
206 !strcmp(name,PEM_STRING_X509_REQ)) return 1;
207
208 /* Allow normal certs to be read as trusted certs */
209 if(!strcmp(nm,PEM_STRING_X509) &&
210 !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
211
212 if(!strcmp(nm,PEM_STRING_X509_OLD) &&
213 !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
214
215 /* Some CAs use PKCS#7 with CERTIFICATE headers */
216 if(!strcmp(nm, PEM_STRING_X509) &&
217 !strcmp(name, PEM_STRING_PKCS7)) return 1;
218
219 if(!strcmp(nm, PEM_STRING_PKCS7_SIGNED) &&
220 !strcmp(name, PEM_STRING_PKCS7)) return 1;
221
222 return 0;
223}
224
225int PEM_bytes_read_bio(unsigned char **pdata, long *plen, char **pnm, const char *name, BIO *bp,
226 pem_password_cb *cb, void *u)
227 {
228 EVP_CIPHER_INFO cipher;
229 char *nm=NULL,*header=NULL;
230 unsigned char *data=NULL;
231 long len;
232 int ret = 0;
233
234 for (;;)
235 {
236 if (!PEM_read_bio(bp,&nm,&header,&data,&len)) {
237 if(ERR_GET_REASON(ERR_peek_error()) ==
238 PEM_R_NO_START_LINE)
239 ERR_add_error_data(2, "Expecting: ", name);
240 return 0;
241 }
242 if(check_pem(nm, name)) break;
243 OPENSSL_free(nm);
244 OPENSSL_free(header);
245 OPENSSL_free(data);
246 }
247 if (!PEM_get_EVP_CIPHER_INFO(header,&cipher)) goto err;
248 if (!PEM_do_header(&cipher,data,&len,cb,u)) goto err;
249
250 *pdata = data;
251 *plen = len;
252
253 if (pnm)
254 *pnm = nm;
255
256 ret = 1;
257
258err:
259 if (!ret || !pnm) OPENSSL_free(nm);
260 OPENSSL_free(header);
261 if (!ret) OPENSSL_free(data);
262 return ret;
263 }
264
265#ifndef OPENSSL_NO_FP_API
266int PEM_ASN1_write(i2d_of_void *i2d, const char *name, FILE *fp,
267 char *x, const EVP_CIPHER *enc, unsigned char *kstr,
268 int klen, pem_password_cb *callback, void *u)
269 {
270 BIO *b;
271 int ret;
272
273 if ((b=BIO_new(BIO_s_file())) == NULL)
274 {
275 PEMerr(PEM_F_PEM_ASN1_WRITE,ERR_R_BUF_LIB);
276 return(0);
277 }
278 BIO_set_fp(b,fp,BIO_NOCLOSE);
279 ret=PEM_ASN1_write_bio(i2d,name,b,x,enc,kstr,klen,callback,u);
280 BIO_free(b);
281 return(ret);
282 }
283#endif
284
285int PEM_ASN1_write_bio(i2d_of_void *i2d, const char *name, BIO *bp,
286 char *x, const EVP_CIPHER *enc, unsigned char *kstr,
287 int klen, pem_password_cb *callback, void *u)
288 {
289 EVP_CIPHER_CTX ctx;
290 int dsize=0,i,j,ret=0;
291 unsigned char *p,*data=NULL;
292 const char *objstr=NULL;
293 char buf[PEM_BUFSIZE];
294 unsigned char key[EVP_MAX_KEY_LENGTH];
295 unsigned char iv[EVP_MAX_IV_LENGTH];
296
297 if (enc != NULL)
298 {
299 objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
300 if (objstr == NULL)
301 {
302 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
303 goto err;
304 }
305 }
306
307 if ((dsize=i2d(x,NULL)) < 0)
308 {
309 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_ASN1_LIB);
310 dsize=0;
311 goto err;
312 }
313 /* dzise + 8 bytes are needed */
314 /* actually it needs the cipher block size extra... */
315 data=(unsigned char *)OPENSSL_malloc((unsigned int)dsize+20);
316 if (data == NULL)
317 {
318 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE);
319 goto err;
320 }
321 p=data;
322 i=i2d(x,&p);
323
324 if (enc != NULL)
325 {
326 if (kstr == NULL)
327 {
328 if (callback == NULL)
329 klen=PEM_def_callback(buf,PEM_BUFSIZE,1,u);
330 else
331 klen=(*callback)(buf,PEM_BUFSIZE,1,u);
332 if (klen <= 0)
333 {
334 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_READ_KEY);
335 goto err;
336 }
337#ifdef CHARSET_EBCDIC
338 /* Convert the pass phrase from EBCDIC */
339 ebcdic2ascii(buf, buf, klen);
340#endif
341 kstr=(unsigned char *)buf;
342 }
343 RAND_add(data,i,0);/* put in the RSA key. */
344 OPENSSL_assert(enc->iv_len <= (int)sizeof(iv));
345 if (RAND_pseudo_bytes(iv,enc->iv_len) < 0) /* Generate a salt */
346 goto err;
347 /* The 'iv' is used as the iv and as a salt. It is
348 * NOT taken from the BytesToKey function */
349 EVP_BytesToKey(enc,EVP_md5(),iv,kstr,klen,1,key,NULL);
350
351 if (kstr == (unsigned char *)buf) OPENSSL_cleanse(buf,PEM_BUFSIZE);
352
353 OPENSSL_assert(strlen(objstr)+23+2*enc->iv_len+13 <= sizeof buf);
354
355 buf[0]='\0';
356 PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
357 PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv);
358 /* k=strlen(buf); */
359
360 EVP_CIPHER_CTX_init(&ctx);
361 EVP_EncryptInit_ex(&ctx,enc,NULL,key,iv);
362 EVP_EncryptUpdate(&ctx,data,&j,data,i);
363 EVP_EncryptFinal_ex(&ctx,&(data[j]),&i);
364 EVP_CIPHER_CTX_cleanup(&ctx);
365 i+=j;
366 ret=1;
367 }
368 else
369 {
370 ret=1;
371 buf[0]='\0';
372 }
373 i=PEM_write_bio(bp,name,buf,data,i);
374 if (i <= 0) ret=0;
375err:
376 OPENSSL_cleanse(key,sizeof(key));
377 OPENSSL_cleanse(iv,sizeof(iv));
378 OPENSSL_cleanse((char *)&ctx,sizeof(ctx));
379 OPENSSL_cleanse(buf,PEM_BUFSIZE);
380 if (data != NULL)
381 {
382 OPENSSL_cleanse(data,(unsigned int)dsize);
383 OPENSSL_free(data);
384 }
385 return(ret);
386 }
387
388int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *plen,
389 pem_password_cb *callback,void *u)
390 {
391 int i,j,o,klen;
392 long len;
393 EVP_CIPHER_CTX ctx;
394 unsigned char key[EVP_MAX_KEY_LENGTH];
395 char buf[PEM_BUFSIZE];
396
397 len= *plen;
398
399 if (cipher->cipher == NULL) return(1);
400 if (callback == NULL)
401 klen=PEM_def_callback(buf,PEM_BUFSIZE,0,u);
402 else
403 klen=callback(buf,PEM_BUFSIZE,0,u);
404 if (klen <= 0)
405 {
406 PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_PASSWORD_READ);
407 return(0);
408 }
409#ifdef CHARSET_EBCDIC
410 /* Convert the pass phrase from EBCDIC */
411 ebcdic2ascii(buf, buf, klen);
412#endif
413
414 EVP_BytesToKey(cipher->cipher,EVP_md5(),&(cipher->iv[0]),
415 (unsigned char *)buf,klen,1,key,NULL);
416
417 j=(int)len;
418 EVP_CIPHER_CTX_init(&ctx);
419 EVP_DecryptInit_ex(&ctx,cipher->cipher,NULL, key,&(cipher->iv[0]));
420 EVP_DecryptUpdate(&ctx,data,&i,data,j);
421 o=EVP_DecryptFinal_ex(&ctx,&(data[i]),&j);
422 EVP_CIPHER_CTX_cleanup(&ctx);
423 OPENSSL_cleanse((char *)buf,sizeof(buf));
424 OPENSSL_cleanse((char *)key,sizeof(key));
425 j+=i;
426 if (!o)
427 {
428 PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_DECRYPT);
429 return(0);
430 }
431 *plen=j;
432 return(1);
433 }
434
435int PEM_get_EVP_CIPHER_INFO(char *header, EVP_CIPHER_INFO *cipher)
436 {
437 int o;
438 const EVP_CIPHER *enc=NULL;
439 char *p,c;
440 char **header_pp = &header;
441
442 cipher->cipher=NULL;
443 if ((header == NULL) || (*header == '\0') || (*header == '\n'))
444 return(1);
445 if (strncmp(header,"Proc-Type: ",11) != 0)
446 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_PROC_TYPE); return(0); }
447 header+=11;
448 if (*header != '4') return(0); header++;
449 if (*header != ',') return(0); header++;
450 if (strncmp(header,"ENCRYPTED",9) != 0)
451 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_ENCRYPTED); return(0); }
452 for (; (*header != '\n') && (*header != '\0'); header++)
453 ;
454 if (*header == '\0')
455 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_SHORT_HEADER); return(0); }
456 header++;
457 if (strncmp(header,"DEK-Info: ",10) != 0)
458 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_DEK_INFO); return(0); }
459 header+=10;
460
461 p=header;
462 for (;;)
463 {
464 c= *header;
465#ifndef CHARSET_EBCDIC
466 if (!( ((c >= 'A') && (c <= 'Z')) || (c == '-') ||
467 ((c >= '0') && (c <= '9'))))
468 break;
469#else
470 if (!( isupper(c) || (c == '-') ||
471 isdigit(c)))
472 break;
473#endif
474 header++;
475 }
476 *header='\0';
477 o=OBJ_sn2nid(p);
478 cipher->cipher=enc=EVP_get_cipherbyname(p);
479 *header=c;
480 header++;
481
482 if (enc == NULL)
483 {
484 PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_UNSUPPORTED_ENCRYPTION);
485 return(0);
486 }
487 if (!load_iv(header_pp,&(cipher->iv[0]),enc->iv_len))
488 return(0);
489
490 return(1);
491 }
492
493static int load_iv(char **fromp, unsigned char *to, int num)
494 {
495 int v,i;
496 char *from;
497
498 from= *fromp;
499 for (i=0; i<num; i++) to[i]=0;
500 num*=2;
501 for (i=0; i<num; i++)
502 {
503 if ((*from >= '0') && (*from <= '9'))
504 v= *from-'0';
505 else if ((*from >= 'A') && (*from <= 'F'))
506 v= *from-'A'+10;
507 else if ((*from >= 'a') && (*from <= 'f'))
508 v= *from-'a'+10;
509 else
510 {
511 PEMerr(PEM_F_LOAD_IV,PEM_R_BAD_IV_CHARS);
512 return(0);
513 }
514 from++;
515 to[i/2]|=v<<(long)((!(i&1))*4);
516 }
517
518 *fromp=from;
519 return(1);
520 }
521
522#ifndef OPENSSL_NO_FP_API
523int PEM_write(FILE *fp, char *name, char *header, unsigned char *data,
524 long len)
525 {
526 BIO *b;
527 int ret;
528
529 if ((b=BIO_new(BIO_s_file())) == NULL)
530 {
531 PEMerr(PEM_F_PEM_WRITE,ERR_R_BUF_LIB);
532 return(0);
533 }
534 BIO_set_fp(b,fp,BIO_NOCLOSE);
535 ret=PEM_write_bio(b, name, header, data,len);
536 BIO_free(b);
537 return(ret);
538 }
539#endif
540
541int PEM_write_bio(BIO *bp, const char *name, char *header, unsigned char *data,
542 long len)
543 {
544 int nlen,n,i,j,outl;
545 unsigned char *buf = NULL;
546 EVP_ENCODE_CTX ctx;
547 int reason=ERR_R_BUF_LIB;
548
549 EVP_EncodeInit(&ctx);
550 nlen=strlen(name);
551
552 if ( (BIO_write(bp,"-----BEGIN ",11) != 11) ||
553 (BIO_write(bp,name,nlen) != nlen) ||
554 (BIO_write(bp,"-----\n",6) != 6))
555 goto err;
556
557 i=strlen(header);
558 if (i > 0)
559 {
560 if ( (BIO_write(bp,header,i) != i) ||
561 (BIO_write(bp,"\n",1) != 1))
562 goto err;
563 }
564
565 buf = OPENSSL_malloc(PEM_BUFSIZE*8);
566 if (buf == NULL)
567 {
568 reason=ERR_R_MALLOC_FAILURE;
569 goto err;
570 }
571
572 i=j=0;
573 while (len > 0)
574 {
575 n=(int)((len>(PEM_BUFSIZE*5))?(PEM_BUFSIZE*5):len);
576 EVP_EncodeUpdate(&ctx,buf,&outl,&(data[j]),n);
577 if ((outl) && (BIO_write(bp,(char *)buf,outl) != outl))
578 goto err;
579 i+=outl;
580 len-=n;
581 j+=n;
582 }
583 EVP_EncodeFinal(&ctx,buf,&outl);
584 if ((outl > 0) && (BIO_write(bp,(char *)buf,outl) != outl)) goto err;
585 OPENSSL_cleanse(buf, PEM_BUFSIZE*8);
586 OPENSSL_free(buf);
587 buf = NULL;
588 if ( (BIO_write(bp,"-----END ",9) != 9) ||
589 (BIO_write(bp,name,nlen) != nlen) ||
590 (BIO_write(bp,"-----\n",6) != 6))
591 goto err;
592 return(i+outl);
593err:
594 if (buf) {
595 OPENSSL_cleanse(buf, PEM_BUFSIZE*8);
596 OPENSSL_free(buf);
597 }
598 PEMerr(PEM_F_PEM_WRITE_BIO,reason);
599 return(0);
600 }
601
602#ifndef OPENSSL_NO_FP_API
603int PEM_read(FILE *fp, char **name, char **header, unsigned char **data,
604 long *len)
605 {
606 BIO *b;
607 int ret;
608
609 if ((b=BIO_new(BIO_s_file())) == NULL)
610 {
611 PEMerr(PEM_F_PEM_READ,ERR_R_BUF_LIB);
612 return(0);
613 }
614 BIO_set_fp(b,fp,BIO_NOCLOSE);
615 ret=PEM_read_bio(b, name, header, data,len);
616 BIO_free(b);
617 return(ret);
618 }
619#endif
620
621int PEM_read_bio(BIO *bp, char **name, char **header, unsigned char **data,
622 long *len)
623 {
624 EVP_ENCODE_CTX ctx;
625 int end=0,i,k,bl=0,hl=0,nohead=0;
626 char buf[256];
627 BUF_MEM *nameB;
628 BUF_MEM *headerB;
629 BUF_MEM *dataB,*tmpB;
630
631 nameB=BUF_MEM_new();
632 headerB=BUF_MEM_new();
633 dataB=BUF_MEM_new();
634 if ((nameB == NULL) || (headerB == NULL) || (dataB == NULL))
635 {
636 BUF_MEM_free(nameB);
637 BUF_MEM_free(headerB);
638 BUF_MEM_free(dataB);
639 PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
640 return(0);
641 }
642
643 buf[254]='\0';
644 for (;;)
645 {
646 i=BIO_gets(bp,buf,254);
647
648 if (i <= 0)
649 {
650 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_NO_START_LINE);
651 goto err;
652 }
653
654 while ((i >= 0) && (buf[i] <= ' ')) i--;
655 buf[++i]='\n'; buf[++i]='\0';
656
657 if (strncmp(buf,"-----BEGIN ",11) == 0)
658 {
659 i=strlen(&(buf[11]));
660
661 if (strncmp(&(buf[11+i-6]),"-----\n",6) != 0)
662 continue;
663 if (!BUF_MEM_grow(nameB,i+9))
664 {
665 PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
666 goto err;
667 }
668 memcpy(nameB->data,&(buf[11]),i-6);
669 nameB->data[i-6]='\0';
670 break;
671 }
672 }
673 hl=0;
674 if (!BUF_MEM_grow(headerB,256))
675 { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
676 headerB->data[0]='\0';
677 for (;;)
678 {
679 i=BIO_gets(bp,buf,254);
680 if (i <= 0) break;
681
682 while ((i >= 0) && (buf[i] <= ' ')) i--;
683 buf[++i]='\n'; buf[++i]='\0';
684
685 if (buf[0] == '\n') break;
686 if (!BUF_MEM_grow(headerB,hl+i+9))
687 { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
688 if (strncmp(buf,"-----END ",9) == 0)
689 {
690 nohead=1;
691 break;
692 }
693 memcpy(&(headerB->data[hl]),buf,i);
694 headerB->data[hl+i]='\0';
695 hl+=i;
696 }
697
698 bl=0;
699 if (!BUF_MEM_grow(dataB,1024))
700 { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
701 dataB->data[0]='\0';
702 if (!nohead)
703 {
704 for (;;)
705 {
706 i=BIO_gets(bp,buf,254);
707 if (i <= 0) break;
708
709 while ((i >= 0) && (buf[i] <= ' ')) i--;
710 buf[++i]='\n'; buf[++i]='\0';
711
712 if (i != 65) end=1;
713 if (strncmp(buf,"-----END ",9) == 0)
714 break;
715 if (i > 65) break;
716 if (!BUF_MEM_grow_clean(dataB,i+bl+9))
717 {
718 PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
719 goto err;
720 }
721 memcpy(&(dataB->data[bl]),buf,i);
722 dataB->data[bl+i]='\0';
723 bl+=i;
724 if (end)
725 {
726 buf[0]='\0';
727 i=BIO_gets(bp,buf,254);
728 if (i <= 0) break;
729
730 while ((i >= 0) && (buf[i] <= ' ')) i--;
731 buf[++i]='\n'; buf[++i]='\0';
732
733 break;
734 }
735 }
736 }
737 else
738 {
739 tmpB=headerB;
740 headerB=dataB;
741 dataB=tmpB;
742 bl=hl;
743 }
744 i=strlen(nameB->data);
745 if ( (strncmp(buf,"-----END ",9) != 0) ||
746 (strncmp(nameB->data,&(buf[9]),i) != 0) ||
747 (strncmp(&(buf[9+i]),"-----\n",6) != 0))
748 {
749 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_END_LINE);
750 goto err;
751 }
752
753 EVP_DecodeInit(&ctx);
754 i=EVP_DecodeUpdate(&ctx,
755 (unsigned char *)dataB->data,&bl,
756 (unsigned char *)dataB->data,bl);
757 if (i < 0)
758 {
759 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE);
760 goto err;
761 }
762 i=EVP_DecodeFinal(&ctx,(unsigned char *)&(dataB->data[bl]),&k);
763 if (i < 0)
764 {
765 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE);
766 goto err;
767 }
768 bl+=k;
769
770 if (bl == 0) goto err;
771 *name=nameB->data;
772 *header=headerB->data;
773 *data=(unsigned char *)dataB->data;
774 *len=bl;
775 OPENSSL_free(nameB);
776 OPENSSL_free(headerB);
777 OPENSSL_free(dataB);
778 return(1);
779err:
780 BUF_MEM_free(nameB);
781 BUF_MEM_free(headerB);
782 BUF_MEM_free(dataB);
783 return(0);
784 }
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-04-03 20:28:20 +0000