openssl-include.rar_C常用头文件_openssl_ssl_visual c

/* crypto/bio/bss_file.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.] */ /* * 03-Dec-1997 rdenny@dc3.com Fix bug preventing use of stdin/stdout * with binary data (e.g. asn1parse -inform DER < xxx) under * Windows */ #ifndef HEADER_BSS_FILE_C #define HEADER_BSS_FILE_C #include <stdio.h> #include <errno.h> #include "cryptlib.h" #include <openssl/bio.h> #include <openssl/err.h> #if !defined(NO_STDIO) static int MS_CALLBACK file_write(BIO *h, const char *buf, int num); static int MS_CALLBACK file_read(BIO *h, char *buf, int size); static int MS_CALLBACK file_puts(BIO *h, const 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, void *arg2); static int MS_CALLBACK file_new(BIO *h); static int MS_CALLBACK file_free(BIO *data); static BIO_METHOD methods_filep= { BIO_TYPE_FILE, "FILE pointer", file_write, file_read, file_puts, file_gets, file_ctrl, file_new, file_free, NULL, }; BIO *BIO_new_file(const char *filename, const char *mode) { BIO *ret; FILE *file; if ((file=fopen(filename,mode)) == NULL) { SYSerr(SYS_F_FOPEN,get_last_sys_error()); ERR_add_error_data(5,"fopen('",filename,"','",mode,"')"); BIOerr(BIO_F_BIO_NEW_FILE,ERR_R_SYS_LIB); return(NULL); } if ((ret=BIO_new(BIO_s_file_internal())) == NULL) return(NULL); BIO_set_fp(ret,file,BIO_CLOSE); return(ret); } BIO *BIO_new_fp(FILE *stream, int close_flag) { BIO *ret; if ((ret=BIO_new(BIO_s_file())) == NULL) return(NULL); BIO_set_fp(ret,stream,close_flag); return(ret); } BIO_METHOD *BIO_s_file(void) { return(&methods_filep); } static int MS_CALLBACK file_new(BIO *bi) { bi->init=0; bi->num=0; bi->ptr=NULL; return(1); } static int MS_CALLBACK file_free(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(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(BIO *b, const 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); */ /* according 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(BIO *b, int cmd, long num, void *ptr) { long ret=1; FILE *fp=(FILE *)b->ptr; FILE **fpp; char p[4]; switch (cmd) { case BIO_C_FILE_SEEK: case BIO_CTRL_RESET: ret=(long)fseek(fp,num,0); break; case BIO_CTRL_EOF: ret=(long)feof(fp); break; case BIO_C_FILE_TELL: case BIO_CTRL_INFO: ret=ftell(fp); break; case BIO_C_SET_FILE_PTR: file_free(b); b->shutdown=(int)num&BIO_CLOSE; b->ptr=(char *)ptr; b->init=1; #if defined(MSDOS) || defined(WINDOWS) /* Set correct text/binary mode */ if (num & BIO_FP_TEXT) _setmode(fileno((FILE *)ptr),_O_TEXT); else _setmode(fileno((FILE *)ptr),_O_BINARY); #endif 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,get_last_sys_error()); ERR_add_error_data(5,"fopen('",ptr,"','",p,"')"); 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(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(BIO *bp, const char *str) { int n,ret; n=strlen(str); ret=file_write(bp,str,n);