X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fevp%2Fbio_md.c;h=381ca599a74560a724af1b386b44db3d09e54f3f;hp=76ff9fe815a0ff5366b77d34a2017adc866f8786;hb=ab0a14bbc7bc7cdda4cfb2b2a730804b3437429f;hpb=41e455bfc43b9815f5b6d7498601fdd508c80dc2 diff --git a/crypto/evp/bio_md.c b/crypto/evp/bio_md.c index 76ff9fe815..381ca599a7 100644 --- a/crypto/evp/bio_md.c +++ b/crypto/evp/bio_md.c @@ -5,21 +5,21 @@ * 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: @@ -34,10 +34,10 @@ * 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 + * 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 @@ -49,7 +49,7 @@ * 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 @@ -58,206 +58,217 @@ #include #include -#include "cryptlib.h" +#include "internal/cryptlib.h" #include #include +#include "internal/evp_int.h" +#include "evp_locl.h" -/* BIO_put and BIO_get both add to the digest, - * BIO_gets returns the digest */ +/* + * BIO_put and BIO_get both add to the digest, BIO_gets returns the digest + */ static int md_write(BIO *h, char const *buf, int num); static int md_read(BIO *h, char *buf, int size); -/*static int md_puts(BIO *h, const char *str); */ +/* + * static int md_puts(BIO *h, const char *str); + */ static int md_gets(BIO *h, char *str, int size); static long md_ctrl(BIO *h, int cmd, long arg1, void *arg2); static int md_new(BIO *h); static int md_free(BIO *data); -static long md_callback_ctrl(BIO *h,int cmd,bio_info_cb *fp); +static long md_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp); -static BIO_METHOD methods_md= - { - BIO_TYPE_MD,"message digest", - md_write, - md_read, - NULL, /* md_puts, */ - md_gets, - md_ctrl, - md_new, - md_free, - md_callback_ctrl, - }; +static BIO_METHOD methods_md = { + BIO_TYPE_MD, "message digest", + md_write, + md_read, + NULL, /* md_puts, */ + md_gets, + md_ctrl, + md_new, + md_free, + md_callback_ctrl, +}; BIO_METHOD *BIO_f_md(void) - { - return(&methods_md); - } +{ + return (&methods_md); +} static int md_new(BIO *bi) - { - EVP_MD_CTX *ctx; +{ + EVP_MD_CTX *ctx; - ctx=EVP_MD_CTX_create(); - if (ctx == NULL) return(0); + ctx = EVP_MD_CTX_create(); + if (ctx == NULL) + return (0); - bi->init=0; - bi->ptr=(char *)ctx; - bi->flags=0; - return(1); - } + bi->init = 0; + bi->ptr = (char *)ctx; + bi->flags = 0; + return (1); +} static int md_free(BIO *a) - { - if (a == NULL) return(0); - EVP_MD_CTX_destroy(a->ptr); - a->ptr=NULL; - a->init=0; - a->flags=0; - return(1); - } - +{ + if (a == NULL) + return (0); + EVP_MD_CTX_destroy(a->ptr); + a->ptr = NULL; + a->init = 0; + a->flags = 0; + return (1); +} + static int md_read(BIO *b, char *out, int outl) - { - int ret=0; - EVP_MD_CTX *ctx; +{ + int ret = 0; + EVP_MD_CTX *ctx; - if (out == NULL) return(0); - ctx=b->ptr; + if (out == NULL) + return (0); + ctx = b->ptr; - if ((ctx == NULL) || (b->next_bio == NULL)) return(0); + if ((ctx == NULL) || (b->next_bio == NULL)) + return (0); - ret=BIO_read(b->next_bio,out,outl); - if (b->init) - { - if (ret > 0) - { - EVP_DigestUpdate(ctx,(unsigned char *)out, - (unsigned int)ret); - } - } - BIO_clear_retry_flags(b); - BIO_copy_next_retry(b); - return(ret); - } + ret = BIO_read(b->next_bio, out, outl); + if (b->init) { + if (ret > 0) { + if (EVP_DigestUpdate(ctx, (unsigned char *)out, + (unsigned int)ret) <= 0) + return (-1); + } + } + BIO_clear_retry_flags(b); + BIO_copy_next_retry(b); + return (ret); +} static int md_write(BIO *b, const char *in, int inl) - { - int ret=0; - EVP_MD_CTX *ctx; +{ + int ret = 0; + EVP_MD_CTX *ctx; - if ((in == NULL) || (inl <= 0)) return(0); - ctx=b->ptr; + if ((in == NULL) || (inl <= 0)) + return (0); + ctx = b->ptr; - if ((ctx != NULL) && (b->next_bio != NULL)) - ret=BIO_write(b->next_bio,in,inl); - if (b->init) - { - if (ret > 0) - { - EVP_DigestUpdate(ctx,(const unsigned char *)in, - (unsigned int)ret); - } - } - BIO_clear_retry_flags(b); - BIO_copy_next_retry(b); - return(ret); - } + if ((ctx != NULL) && (b->next_bio != NULL)) + ret = BIO_write(b->next_bio, in, inl); + if (b->init) { + if (ret > 0) { + if (!EVP_DigestUpdate(ctx, (const unsigned char *)in, + (unsigned int)ret)) { + BIO_clear_retry_flags(b); + return 0; + } + } + } + if (b->next_bio != NULL) { + BIO_clear_retry_flags(b); + BIO_copy_next_retry(b); + } + return (ret); +} static long md_ctrl(BIO *b, int cmd, long num, void *ptr) - { - EVP_MD_CTX *ctx,*dctx,**pctx; - const EVP_MD **ppmd; - EVP_MD *md; - long ret=1; - BIO *dbio; +{ + EVP_MD_CTX *ctx, *dctx, **pctx; + const EVP_MD **ppmd; + EVP_MD *md; + long ret = 1; + BIO *dbio; - ctx=b->ptr; + ctx = b->ptr; - switch (cmd) - { - case BIO_CTRL_RESET: - if (b->init) - ret = EVP_DigestInit_ex(ctx,ctx->digest, NULL); - else - ret=0; - if (ret > 0) - ret=BIO_ctrl(b->next_bio,cmd,num,ptr); - break; - case BIO_C_GET_MD: - if (b->init) - { - ppmd=ptr; - *ppmd=ctx->digest; - } - else - ret=0; - break; - case BIO_C_GET_MD_CTX: - if (b->init) - { - pctx=ptr; - *pctx=ctx; - } - else - ret=0; - break; - case BIO_C_DO_STATE_MACHINE: - BIO_clear_retry_flags(b); - ret=BIO_ctrl(b->next_bio,cmd,num,ptr); - BIO_copy_next_retry(b); - break; + switch (cmd) { + case BIO_CTRL_RESET: + if (b->init) + ret = EVP_DigestInit_ex(ctx, ctx->digest, NULL); + else + ret = 0; + if (ret > 0) + ret = BIO_ctrl(b->next_bio, cmd, num, ptr); + break; + case BIO_C_GET_MD: + if (b->init) { + ppmd = ptr; + *ppmd = ctx->digest; + } else + ret = 0; + break; + case BIO_C_GET_MD_CTX: + pctx = ptr; + *pctx = ctx; + b->init = 1; + break; + case BIO_C_SET_MD_CTX: + if (b->init) + b->ptr = ptr; + else + ret = 0; + break; + case BIO_C_DO_STATE_MACHINE: + BIO_clear_retry_flags(b); + ret = BIO_ctrl(b->next_bio, cmd, num, ptr); + BIO_copy_next_retry(b); + break; - case BIO_C_SET_MD: - md=ptr; - ret = EVP_DigestInit_ex(ctx,md, NULL); - if (ret > 0) - b->init=1; - break; - case BIO_CTRL_DUP: - dbio=ptr; - dctx=dbio->ptr; - EVP_MD_CTX_copy_ex(dctx,ctx); - b->init=1; - break; - default: - ret=BIO_ctrl(b->next_bio,cmd,num,ptr); - break; - } - return(ret); - } + case BIO_C_SET_MD: + md = ptr; + ret = EVP_DigestInit_ex(ctx, md, NULL); + if (ret > 0) + b->init = 1; + break; + case BIO_CTRL_DUP: + dbio = ptr; + dctx = dbio->ptr; + if (!EVP_MD_CTX_copy_ex(dctx, ctx)) + return 0; + b->init = 1; + break; + default: + ret = BIO_ctrl(b->next_bio, cmd, num, ptr); + break; + } + return (ret); +} static long md_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp) - { - long ret=1; +{ + long ret = 1; - if (b->next_bio == NULL) return(0); - switch (cmd) - { - default: - ret=BIO_callback_ctrl(b->next_bio,cmd,fp); - break; - } - return(ret); - } + if (b->next_bio == NULL) + return (0); + switch (cmd) { + default: + ret = BIO_callback_ctrl(b->next_bio, cmd, fp); + break; + } + return (ret); +} static int md_gets(BIO *bp, char *buf, int size) - { - EVP_MD_CTX *ctx; - unsigned int ret; +{ + EVP_MD_CTX *ctx; + unsigned int ret; + ctx = bp->ptr; + if (size < ctx->digest->md_size) + return (0); + if (EVP_DigestFinal_ex(ctx, (unsigned char *)buf, &ret) <= 0) + return -1; - ctx=bp->ptr; - if (size < ctx->digest->md_size) - return(0); - EVP_DigestFinal_ex(ctx,(unsigned char *)buf,&ret); - return((int)ret); - } + return ((int)ret); +} -/* +/*- static int md_puts(bp,str) BIO *bp; char *str; - { - return(-1); - } + { + return(-1); + } */ -