+++ /dev/null
-/* crypto/pem/pem_lib.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
-
-#include <stdio.h>
-#include "cryptlib.h"
-#include <openssl/buffer.h>
-#include <openssl/objects.h>
-#include <openssl/evp.h>
-#include <openssl/rand.h>
-#include <openssl/x509.h>
-#include <openssl/pem.h>
-#include <openssl/pkcs12.h>
-#ifndef OPENSSL_NO_DES
-#include <openssl/des.h>
-#endif
-
-const char *PEM_version="PEM" OPENSSL_VERSION_PTEXT;
-
-#define MIN_LENGTH 4
-
-static int load_iv(char **fromp,unsigned char *to, int num);
-static int check_pem(const char *nm, const char *name);
-
-int PEM_def_callback(char *buf, int num, int w, void *key)
- {
-#ifdef OPENSSL_NO_FP_API
- /* We should not ever call the default callback routine from
- * windows. */
- PEMerr(PEM_F_DEF_CALLBACK,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
- return(-1);
-#else
- int i,j;
- const char *prompt;
- if(key) {
- i=strlen(key);
- i=(i > num)?num:i;
- memcpy(buf,key,i);
- return(i);
- }
-
- prompt=EVP_get_pw_prompt();
- if (prompt == NULL)
- prompt="Enter PEM pass phrase:";
-
- for (;;)
- {
- i=EVP_read_pw_string(buf,num,prompt,w);
- if (i != 0)
- {
- PEMerr(PEM_F_DEF_CALLBACK,PEM_R_PROBLEMS_GETTING_PASSWORD);
- memset(buf,0,(unsigned int)num);
- return(-1);
- }
- j=strlen(buf);
- if (j < MIN_LENGTH)
- {
- fprintf(stderr,"phrase is too short, needs to be at least %d chars\n",MIN_LENGTH);
- }
- else
- break;
- }
- return(j);
-#endif
- }
-
-void PEM_proc_type(char *buf, int type)
- {
- const char *str;
-
- if (type == PEM_TYPE_ENCRYPTED)
- str="ENCRYPTED";
- else if (type == PEM_TYPE_MIC_CLEAR)
- str="MIC-CLEAR";
- else if (type == PEM_TYPE_MIC_ONLY)
- str="MIC-ONLY";
- else
- str="BAD-TYPE";
-
- BUF_strlcat(buf,"Proc-Type: 4,",PEM_BUFSIZE);
- BUF_strlcat(buf,str,PEM_BUFSIZE);
- BUF_strlcat(buf,"\n",PEM_BUFSIZE);
- }
-
-void PEM_dek_info(char *buf, const char *type, int len, char *str)
- {
- static const unsigned char map[17]="0123456789ABCDEF";
- long i;
- int j;
-
- BUF_strlcat(buf,"DEK-Info: ",PEM_BUFSIZE);
- BUF_strlcat(buf,type,PEM_BUFSIZE);
- BUF_strlcat(buf,",",PEM_BUFSIZE);
- j=strlen(buf);
- if (j + (len * 2) + 1 > PEM_BUFSIZE)
- return;
- for (i=0; i<len; i++)
- {
- buf[j+i*2] =map[(str[i]>>4)&0x0f];
- buf[j+i*2+1]=map[(str[i] )&0x0f];
- }
- buf[j+i*2]='\n';
- buf[j+i*2+1]='\0';
- }
-
-#ifndef OPENSSL_NO_FP_API
-char *PEM_ASN1_read(char *(*d2i)(), const char *name, FILE *fp, char **x,
- pem_password_cb *cb, void *u)
- {
- BIO *b;
- char *ret;
-
- if ((b=BIO_new(BIO_s_file())) == NULL)
- {
- PEMerr(PEM_F_PEM_ASN1_READ,ERR_R_BUF_LIB);
- return(0);
- }
- BIO_set_fp(b,fp,BIO_NOCLOSE);
- ret=PEM_ASN1_read_bio(d2i,name,b,x,cb,u);
- BIO_free(b);
- return(ret);
- }
-#endif
-
-static int check_pem(const char *nm, const char *name)
-{
- /* Normal matching nm and name */
- if (!strcmp(nm,name)) return 1;
-
- /* Make PEM_STRING_EVP_PKEY match any private key */
-
- if(!strcmp(nm,PEM_STRING_PKCS8) &&
- !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
-
- if(!strcmp(nm,PEM_STRING_PKCS8INF) &&
- !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
-
- if(!strcmp(nm,PEM_STRING_RSA) &&
- !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
-
- if(!strcmp(nm,PEM_STRING_DSA) &&
- !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
-
- /* Permit older strings */
-
- if(!strcmp(nm,PEM_STRING_X509_OLD) &&
- !strcmp(name,PEM_STRING_X509)) return 1;
-
- if(!strcmp(nm,PEM_STRING_X509_REQ_OLD) &&
- !strcmp(name,PEM_STRING_X509_REQ)) return 1;
-
- /* Allow normal certs to be read as trusted certs */
- if(!strcmp(nm,PEM_STRING_X509) &&
- !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
-
- if(!strcmp(nm,PEM_STRING_X509_OLD) &&
- !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
-
- /* Some CAs use PKCS#7 with CERTIFICATE headers */
- if(!strcmp(nm, PEM_STRING_X509) &&
- !strcmp(name, PEM_STRING_PKCS7)) return 1;
-
- return 0;
-}
-
-int PEM_bytes_read_bio(unsigned char **pdata, long *plen, char **pnm, const char *name, BIO *bp,
- pem_password_cb *cb, void *u)
- {
- EVP_CIPHER_INFO cipher;
- char *nm=NULL,*header=NULL;
- unsigned char *data=NULL;
- long len;
- int ret = 0;
-
- for (;;)
- {
- if (!PEM_read_bio(bp,&nm,&header,&data,&len)) {
- if(ERR_GET_REASON(ERR_peek_error()) ==
- PEM_R_NO_START_LINE)
- ERR_add_error_data(2, "Expecting: ", name);
- return 0;
- }
- if(check_pem(nm, name)) break;
- OPENSSL_free(nm);
- OPENSSL_free(header);
- OPENSSL_free(data);
- }
- if (!PEM_get_EVP_CIPHER_INFO(header,&cipher)) goto err;
- if (!PEM_do_header(&cipher,data,&len,cb,u)) goto err;
-
- *pdata = data;
- *plen = len;
-
- if (pnm)
- *pnm = nm;
-
- ret = 1;
-
-err:
- if (!ret || !pnm) OPENSSL_free(nm);
- OPENSSL_free(header);
- if (!ret) OPENSSL_free(data);
- return ret;
- }
-
-#ifndef OPENSSL_NO_FP_API
-int PEM_ASN1_write(int (*i2d)(), const char *name, FILE *fp, char *x,
- const EVP_CIPHER *enc, unsigned char *kstr, int klen,
- pem_password_cb *callback, void *u)
- {
- BIO *b;
- int ret;
-
- if ((b=BIO_new(BIO_s_file())) == NULL)
- {
- PEMerr(PEM_F_PEM_ASN1_WRITE,ERR_R_BUF_LIB);
- return(0);
- }
- BIO_set_fp(b,fp,BIO_NOCLOSE);
- ret=PEM_ASN1_write_bio(i2d,name,b,x,enc,kstr,klen,callback,u);
- BIO_free(b);
- return(ret);
- }
-#endif
-
-int PEM_ASN1_write_bio(int (*i2d)(), const char *name, BIO *bp, char *x,
- const EVP_CIPHER *enc, unsigned char *kstr, int klen,
- pem_password_cb *callback, void *u)
- {
- EVP_CIPHER_CTX ctx;
- int dsize=0,i,j,ret=0;
- unsigned char *p,*data=NULL;
- const char *objstr=NULL;
- char buf[PEM_BUFSIZE];
- unsigned char key[EVP_MAX_KEY_LENGTH];
- unsigned char iv[EVP_MAX_IV_LENGTH];
-
- if (enc != NULL)
- {
- objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
- if (objstr == NULL)
- {
- PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
- goto err;
- }
- }
-
- if ((dsize=i2d(x,NULL)) < 0)
- {
- PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_ASN1_LIB);
- dsize=0;
- goto err;
- }
- /* dzise + 8 bytes are needed */
- /* actually it needs the cipher block size extra... */
- data=(unsigned char *)OPENSSL_malloc((unsigned int)dsize+20);
- if (data == NULL)
- {
- PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- p=data;
- i=i2d(x,&p);
-
- if (enc != NULL)
- {
- if (kstr == NULL)
- {
- if (callback == NULL)
- klen=PEM_def_callback(buf,PEM_BUFSIZE,1,u);
- else
- klen=(*callback)(buf,PEM_BUFSIZE,1,u);
- if (klen <= 0)
- {
- PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_READ_KEY);
- goto err;
- }
-#ifdef CHARSET_EBCDIC
- /* Convert the pass phrase from EBCDIC */
- ebcdic2ascii(buf, buf, klen);
-#endif
- kstr=(unsigned char *)buf;
- }
- RAND_add(data,i,0);/* put in the RSA key. */
- OPENSSL_assert(enc->iv_len <= sizeof iv);
- if (RAND_pseudo_bytes(iv,enc->iv_len) < 0) /* Generate a salt */
- goto err;
- /* The 'iv' is used as the iv and as a salt. It is
- * NOT taken from the BytesToKey function */
- EVP_BytesToKey(enc,EVP_md5(),iv,kstr,klen,1,key,NULL);
-
- if (kstr == (unsigned char *)buf) OPENSSL_cleanse(buf,PEM_BUFSIZE);
-
- OPENSSL_assert(strlen(objstr)+23+2*enc->iv_len+13 <= sizeof buf);
-
- buf[0]='\0';
- PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
- PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv);
- /* k=strlen(buf); */
-
- EVP_CIPHER_CTX_init(&ctx);
- EVP_EncryptInit_ex(&ctx,enc,NULL,key,iv);
- EVP_EncryptUpdate(&ctx,data,&j,data,i);
- EVP_EncryptFinal_ex(&ctx,&(data[j]),&i);
- EVP_CIPHER_CTX_cleanup(&ctx);
- i+=j;
- ret=1;
- }
- else
- {
- ret=1;
- buf[0]='\0';
- }
- i=PEM_write_bio(bp,name,buf,data,i);
- if (i <= 0) ret=0;
-err:
- OPENSSL_cleanse(key,sizeof(key));
- OPENSSL_cleanse(iv,sizeof(iv));
- OPENSSL_cleanse((char *)&ctx,sizeof(ctx));
- OPENSSL_cleanse(buf,PEM_BUFSIZE);
- if (data != NULL)
- {
- OPENSSL_cleanse(data,(unsigned int)dsize);
- OPENSSL_free(data);
- }
- return(ret);
- }
-
-int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *plen,
- pem_password_cb *callback,void *u)
- {
- int i,j,o,klen;
- long len;
- EVP_CIPHER_CTX ctx;
- unsigned char key[EVP_MAX_KEY_LENGTH];
- char buf[PEM_BUFSIZE];
-
- len= *plen;
-
- if (cipher->cipher == NULL) return(1);
- if (callback == NULL)
- klen=PEM_def_callback(buf,PEM_BUFSIZE,0,u);
- else
- klen=callback(buf,PEM_BUFSIZE,0,u);
- if (klen <= 0)
- {
- PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_PASSWORD_READ);
- return(0);
- }
-#ifdef CHARSET_EBCDIC
- /* Convert the pass phrase from EBCDIC */
- ebcdic2ascii(buf, buf, klen);
-#endif
-
- EVP_BytesToKey(cipher->cipher,EVP_md5(),&(cipher->iv[0]),
- (unsigned char *)buf,klen,1,key,NULL);
-
- j=(int)len;
- EVP_CIPHER_CTX_init(&ctx);
- EVP_DecryptInit_ex(&ctx,cipher->cipher,NULL, key,&(cipher->iv[0]));
- EVP_DecryptUpdate(&ctx,data,&i,data,j);
- o=EVP_DecryptFinal_ex(&ctx,&(data[i]),&j);
- EVP_CIPHER_CTX_cleanup(&ctx);
- OPENSSL_cleanse((char *)buf,sizeof(buf));
- OPENSSL_cleanse((char *)key,sizeof(key));
- j+=i;
- if (!o)
- {
- PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_DECRYPT);
- return(0);
- }
- *plen=j;
- return(1);
- }
-
-int PEM_get_EVP_CIPHER_INFO(char *header, EVP_CIPHER_INFO *cipher)
- {
- int o;
- const EVP_CIPHER *enc=NULL;
- char *p,c;
- char **header_pp = &header;
-
- cipher->cipher=NULL;
- if ((header == NULL) || (*header == '\0') || (*header == '\n'))
- return(1);
- if (strncmp(header,"Proc-Type: ",11) != 0)
- { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_PROC_TYPE); return(0); }
- header+=11;
- if (*header != '4') return(0); header++;
- if (*header != ',') return(0); header++;
- if (strncmp(header,"ENCRYPTED",9) != 0)
- { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_ENCRYPTED); return(0); }
- for (; (*header != '\n') && (*header != '\0'); header++)
- ;
- if (*header == '\0')
- { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_SHORT_HEADER); return(0); }
- header++;
- if (strncmp(header,"DEK-Info: ",10) != 0)
- { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_DEK_INFO); return(0); }
- header+=10;
-
- p=header;
- for (;;)
- {
- c= *header;
-#ifndef CHARSET_EBCDIC
- if (!( ((c >= 'A') && (c <= 'Z')) || (c == '-') ||
- ((c >= '0') && (c <= '9'))))
- break;
-#else
- if (!( isupper(c) || (c == '-') ||
- isdigit(c)))
- break;
-#endif
- header++;
- }
- *header='\0';
- o=OBJ_sn2nid(p);
- cipher->cipher=enc=EVP_get_cipherbyname(p);
- *header=c;
- header++;
-
- if (enc == NULL)
- {
- PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_UNSUPPORTED_ENCRYPTION);
- return(0);
- }
- if (!load_iv(header_pp,&(cipher->iv[0]),enc->iv_len))
- return(0);
-
- return(1);
- }
-
-static int load_iv(char **fromp, unsigned char *to, int num)
- {
- int v,i;
- char *from;
-
- from= *fromp;
- for (i=0; i<num; i++) to[i]=0;
- num*=2;
- for (i=0; i<num; i++)
- {
- if ((*from >= '0') && (*from <= '9'))
- v= *from-'0';
- else if ((*from >= 'A') && (*from <= 'F'))
- v= *from-'A'+10;
- else if ((*from >= 'a') && (*from <= 'f'))
- v= *from-'a'+10;
- else
- {
- PEMerr(PEM_F_LOAD_IV,PEM_R_BAD_IV_CHARS);
- return(0);
- }
- from++;
- to[i/2]|=v<<(long)((!(i&1))*4);
- }
-
- *fromp=from;
- return(1);
- }
-
-#ifndef OPENSSL_NO_FP_API
-int PEM_write(FILE *fp, char *name, char *header, unsigned char *data,
- long len)
- {
- BIO *b;
- int ret;
-
- if ((b=BIO_new(BIO_s_file())) == NULL)
- {
- PEMerr(PEM_F_PEM_WRITE,ERR_R_BUF_LIB);
- return(0);
- }
- BIO_set_fp(b,fp,BIO_NOCLOSE);
- ret=PEM_write_bio(b, name, header, data,len);
- BIO_free(b);
- return(ret);
- }
-#endif
-
-int PEM_write_bio(BIO *bp, const char *name, char *header, unsigned char *data,
- long len)
- {
- int nlen,n,i,j,outl;
- unsigned char *buf = NULL;
- EVP_ENCODE_CTX ctx;
- int reason=ERR_R_BUF_LIB;
-
- EVP_EncodeInit(&ctx);
- nlen=strlen(name);
-
- if ( (BIO_write(bp,"-----BEGIN ",11) != 11) ||
- (BIO_write(bp,name,nlen) != nlen) ||
- (BIO_write(bp,"-----\n",6) != 6))
- goto err;
-
- i=strlen(header);
- if (i > 0)
- {
- if ( (BIO_write(bp,header,i) != i) ||
- (BIO_write(bp,"\n",1) != 1))
- goto err;
- }
-
- buf = OPENSSL_malloc(PEM_BUFSIZE*8);
- if (buf == NULL)
- {
- reason=ERR_R_MALLOC_FAILURE;
- goto err;
- }
-
- i=j=0;
- while (len > 0)
- {
- n=(int)((len>(PEM_BUFSIZE*5))?(PEM_BUFSIZE*5):len);
- EVP_EncodeUpdate(&ctx,buf,&outl,&(data[j]),n);
- if ((outl) && (BIO_write(bp,(char *)buf,outl) != outl))
- goto err;
- i+=outl;
- len-=n;
- j+=n;
- }
- EVP_EncodeFinal(&ctx,buf,&outl);
- if ((outl > 0) && (BIO_write(bp,(char *)buf,outl) != outl)) goto err;
- OPENSSL_free(buf);
- buf = NULL;
- if ( (BIO_write(bp,"-----END ",9) != 9) ||
- (BIO_write(bp,name,nlen) != nlen) ||
- (BIO_write(bp,"-----\n",6) != 6))
- goto err;
- return(i+outl);
-err:
- if (buf)
- OPENSSL_free(buf);
- PEMerr(PEM_F_PEM_WRITE_BIO,reason);
- return(0);
- }
-
-#ifndef OPENSSL_NO_FP_API
-int PEM_read(FILE *fp, char **name, char **header, unsigned char **data,
- long *len)
- {
- BIO *b;
- int ret;
-
- if ((b=BIO_new(BIO_s_file())) == NULL)
- {
- PEMerr(PEM_F_PEM_READ,ERR_R_BUF_LIB);
- return(0);
- }
- BIO_set_fp(b,fp,BIO_NOCLOSE);
- ret=PEM_read_bio(b, name, header, data,len);
- BIO_free(b);
- return(ret);
- }
-#endif
-
-int PEM_read_bio(BIO *bp, char **name, char **header, unsigned char **data,
- long *len)
- {
- EVP_ENCODE_CTX ctx;
- int end=0,i,k,bl=0,hl=0,nohead=0;
- char buf[256];
- BUF_MEM *nameB;
- BUF_MEM *headerB;
- BUF_MEM *dataB,*tmpB;
-
- nameB=BUF_MEM_new();
- headerB=BUF_MEM_new();
- dataB=BUF_MEM_new();
- if ((nameB == NULL) || (headerB == NULL) || (dataB == NULL))
- {
- BUF_MEM_free(nameB);
- BUF_MEM_free(headerB);
- BUF_MEM_free(dataB);
- PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
- return(0);
- }
-
- buf[254]='\0';
- for (;;)
- {
- i=BIO_gets(bp,buf,254);
-
- if (i <= 0)
- {
- PEMerr(PEM_F_PEM_READ_BIO,PEM_R_NO_START_LINE);
- goto err;
- }
-
- while ((i >= 0) && (buf[i] <= ' ')) i--;
- buf[++i]='\n'; buf[++i]='\0';
-
- if (strncmp(buf,"-----BEGIN ",11) == 0)
- {
- i=strlen(&(buf[11]));
-
- if (strncmp(&(buf[11+i-6]),"-----\n",6) != 0)
- continue;
- if (!BUF_MEM_grow(nameB,i+9))
- {
- PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- memcpy(nameB->data,&(buf[11]),i-6);
- nameB->data[i-6]='\0';
- break;
- }
- }
- hl=0;
- if (!BUF_MEM_grow(headerB,256))
- { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
- headerB->data[0]='\0';
- for (;;)
- {
- i=BIO_gets(bp,buf,254);
- if (i <= 0) break;
-
- while ((i >= 0) && (buf[i] <= ' ')) i--;
- buf[++i]='\n'; buf[++i]='\0';
-
- if (buf[0] == '\n') break;
- if (!BUF_MEM_grow(headerB,hl+i+9))
- { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
- if (strncmp(buf,"-----END ",9) == 0)
- {
- nohead=1;
- break;
- }
- memcpy(&(headerB->data[hl]),buf,i);
- headerB->data[hl+i]='\0';
- hl+=i;
- }
-
- bl=0;
- if (!BUF_MEM_grow(dataB,1024))
- { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
- dataB->data[0]='\0';
- if (!nohead)
- {
- for (;;)
- {
- i=BIO_gets(bp,buf,254);
- if (i <= 0) break;
-
- while ((i >= 0) && (buf[i] <= ' ')) i--;
- buf[++i]='\n'; buf[++i]='\0';
-
- if (i != 65) end=1;
- if (strncmp(buf,"-----END ",9) == 0)
- break;
- if (i > 65) break;
- if (!BUF_MEM_grow_clean(dataB,i+bl+9))
- {
- PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- memcpy(&(dataB->data[bl]),buf,i);
- dataB->data[bl+i]='\0';
- bl+=i;
- if (end)
- {
- buf[0]='\0';
- i=BIO_gets(bp,buf,254);
- if (i <= 0) break;
-
- while ((i >= 0) && (buf[i] <= ' ')) i--;
- buf[++i]='\n'; buf[++i]='\0';
-
- break;
- }
- }
- }
- else
- {
- tmpB=headerB;
- headerB=dataB;
- dataB=tmpB;
- bl=hl;
- }
- i=strlen(nameB->data);
- if ( (strncmp(buf,"-----END ",9) != 0) ||
- (strncmp(nameB->data,&(buf[9]),i) != 0) ||
- (strncmp(&(buf[9+i]),"-----\n",6) != 0))
- {
- PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_END_LINE);
- goto err;
- }
-
- EVP_DecodeInit(&ctx);
- i=EVP_DecodeUpdate(&ctx,
- (unsigned char *)dataB->data,&bl,
- (unsigned char *)dataB->data,bl);
- if (i < 0)
- {
- PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE);
- goto err;
- }
- i=EVP_DecodeFinal(&ctx,(unsigned char *)&(dataB->data[bl]),&k);
- if (i < 0)
- {
- PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE);
- goto err;
- }
- bl+=k;
-
- if (bl == 0) goto err;
- *name=nameB->data;
- *header=headerB->data;
- *data=(unsigned char *)dataB->data;
- *len=bl;
- OPENSSL_free(nameB);
- OPENSSL_free(headerB);
- OPENSSL_free(dataB);
- return(1);
-err:
- BUF_MEM_free(nameB);
- BUF_MEM_free(headerB);
- BUF_MEM_free(dataB);
- return(0);
- }
projects / bcm963xx.git / blobdiff