diff options
Diffstat (limited to 'crypto/bio/bss_file.c')
| -rw-r--r-- | crypto/bio/bss_file.c | 334 |
1 files changed, 334 insertions, 0 deletions
diff --git a/crypto/bio/bss_file.c b/crypto/bio/bss_file.c new file mode 100644 index 0000000000..33c18e744b --- /dev/null +++ b/crypto/bio/bss_file.c @@ -0,0 +1,334 @@ +/* crypto/bio/bss_file.c */ +/* Copyright (C) 1995-1997 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 <errno.h> +#include "cryptlib.h" +#include "bio.h" +#include "err.h" + +#ifndef NOPROTO +static int MS_CALLBACK file_write(BIO *h,char *buf,int num); +static int MS_CALLBACK file_read(BIO *h,char *buf,int size); +static int MS_CALLBACK file_puts(BIO *h,char *str); +static int MS_CALLBACK file_gets(BIO *h,char *str,int size); +static long MS_CALLBACK file_ctrl(BIO *h,int cmd,long arg1,char *arg2); +static int MS_CALLBACK file_new(BIO *h); +static int MS_CALLBACK file_free(BIO *data); +#else +static int MS_CALLBACK file_write(); +static int MS_CALLBACK file_read(); +static int MS_CALLBACK file_puts(); +static int MS_CALLBACK file_gets(); +static long MS_CALLBACK file_ctrl(); +static int MS_CALLBACK file_new(); +static int MS_CALLBACK file_free(); +#endif + +static BIO_METHOD methods_filep= + { + BIO_TYPE_FILE,"FILE pointer", + file_write, + file_read, + file_puts, + file_gets, + file_ctrl, + file_new, + file_free, + }; + +#if !defined(WIN16) || defined(APPS_WIN16) +BIO *BIO_new_file(filename,mode) +char *filename; +char *mode; + { + BIO *ret; + FILE *file; + + if ((file=fopen(filename,mode)) == NULL) + { + SYSerr(SYS_F_FOPEN,errno); + BIOerr(BIO_F_BIO_NEW_FILE,ERR_R_SYS_LIB); + return(NULL); + } + + if ((ret=BIO_new(BIO_s_file())) == NULL) + return(NULL); +#if 0 + if ((ret=BIO_new(BIO_s_file_internal_w16())) == NULL) + return(NULL); +#endif + + BIO_set_fp(ret,file,BIO_CLOSE); + return(ret); + } + +BIO *BIO_new_fp(stream,close_flag) +FILE *stream; +int close_flag; + { + BIO *ret; + + if ((ret=BIO_new(BIO_s_file())) == NULL) + return(NULL); +#if 0 + if ((ret=BIO_new(BIO_s_file_internal_w16())) == NULL) +#endif + + BIO_set_fp(ret,stream,close_flag); + return(ret); + } +#endif /* !APPS_WIN16 */ + +#if !defined(WIN16) || defined(APPS_WIN16) + +BIO_METHOD *BIO_s_file() + { + return(&methods_filep); + } + +#else + +BIO_METHOD *BIO_s_file_internal_w16() + { + return(&methods_filep); + } + +#endif + +static int MS_CALLBACK file_new(bi) +BIO *bi; + { + bi->init=0; + bi->num=0; + bi->ptr=NULL; + return(1); + } + +static int MS_CALLBACK file_free(a) +BIO *a; + { + if (a == NULL) return(0); + if (a->shutdown) + { + if ((a->init) && (a->ptr != NULL)) + { + fclose((FILE *)a->ptr); + a->ptr=NULL; + } + a->init=0; + } + return(1); + } + +static int MS_CALLBACK file_read(b,out,outl) +BIO *b; +char *out; +int outl; + { + int ret=0; + + if (b->init && (out != NULL)) + { + ret=fread(out,1,(int)outl,(FILE *)b->ptr); + } + return(ret); + } + +static int MS_CALLBACK file_write(b,in,inl) +BIO *b; +char *in; +int inl; + { + int ret=0; + + if (b->init && (in != NULL)) + { + if (fwrite(in,(int)inl,1,(FILE *)b->ptr)) + ret=inl; + /* ret=fwrite(in,1,(int)inl,(FILE *)b->ptr); */ + /* acording to Tim Hudson <tjh@cryptsoft.com>, the commented + * out version above can cause 'inl' write calls under + * some stupid stdio implementations (VMS) */ + } + return(ret); + } + +static long MS_CALLBACK file_ctrl(b,cmd,num,ptr) +BIO *b; +int cmd; +long num; +char *ptr; + { + long ret=1; + FILE *fp=(FILE *)b->ptr; + FILE **fpp; + char p[4]; + + switch (cmd) + { + case BIO_CTRL_RESET: + ret=(long)fseek(fp,num,0); + break; + case BIO_CTRL_EOF: + ret=(long)feof(fp); + break; + case BIO_CTRL_INFO: + ret=ftell(fp); + break; + case BIO_C_SET_FILE_PTR: + file_free(b); + b->shutdown=(int)num; + b->ptr=(char *)ptr; + b->init=1; + break; + case BIO_C_SET_FILENAME: + file_free(b); + b->shutdown=(int)num&BIO_CLOSE; + if (num & BIO_FP_APPEND) + { + if (num & BIO_FP_READ) + strcpy(p,"a+"); + else strcpy(p,"a"); + } + else if ((num & BIO_FP_READ) && (num & BIO_FP_WRITE)) + strcpy(p,"r+"); + else if (num & BIO_FP_WRITE) + strcpy(p,"w"); + else if (num & BIO_FP_READ) + strcpy(p,"r"); + else + { + BIOerr(BIO_F_FILE_CTRL,BIO_R_BAD_FOPEN_MODE); + ret=0; + break; + } +#if defined(MSDOS) || defined(WINDOWS) + if (!(num & BIO_FP_TEXT)) + strcat(p,"b"); + else + strcat(p,"t"); +#endif + fp=fopen(ptr,p); + if (fp == NULL) + { + SYSerr(SYS_F_FOPEN,errno); + BIOerr(BIO_F_FILE_CTRL,ERR_R_SYS_LIB); + ret=0; + break; + } + b->ptr=(char *)fp; + b->init=1; + break; + case BIO_C_GET_FILE_PTR: + /* the ptr parameter is actually a FILE ** in this case. */ + if (ptr != NULL) + { + fpp=(FILE **)ptr; + *fpp=(FILE *)b->ptr; + } + break; + case BIO_CTRL_GET_CLOSE: + ret=(long)b->shutdown; + break; + case BIO_CTRL_SET_CLOSE: + b->shutdown=(int)num; + break; + case BIO_CTRL_FLUSH: + fflush((FILE *)b->ptr); + break; + case BIO_CTRL_DUP: + ret=1; + break; + + case BIO_CTRL_WPENDING: + case BIO_CTRL_PENDING: + case BIO_CTRL_PUSH: + case BIO_CTRL_POP: + default: + ret=0; + break; + } + return(ret); + } + +static int MS_CALLBACK file_gets(bp,buf,size) +BIO *bp; +char *buf; +int size; + { + int ret=0; + + buf[0]='\0'; + fgets(buf,size,(FILE *)bp->ptr); + if (buf[0] != '\0') + ret=strlen(buf); + return(ret); + } + +static int MS_CALLBACK file_puts(bp,str) +BIO *bp; +char *str; + { + int n,ret; + + n=strlen(str); + ret=file_write(bp,str,n); + return(ret); + } + |