X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=FAQ;h=25e101adbb125034fe48dbf924be19ffda14edf6;hp=ca5683def779faa633fa9b38552f1857680b6d82;hb=7d15a556f85d103e2d2a91b19de8e1898d4842e0;hpb=299024498004473a58e780cdf8ec83e85a04f807 diff --git a/FAQ b/FAQ index ca5683def7..25e101adbb 100644 --- a/FAQ +++ b/FAQ @@ -116,11 +116,14 @@ OpenSSL. Information on the OpenSSL mailing lists is available from * Where can I get a compiled version of OpenSSL? +You can finder pointers to binary distributions in +http://www.openssl.org/related/binaries.html . + Some applications that use OpenSSL are distributed in binary form. When using such an application, you don't need to install OpenSSL yourself; the application will include the required parts (e.g. DLLs). -If you want to install OpenSSL on a Windows system and you don't have +If you want to build OpenSSL on a Windows system and you don't have a C compiler, read the "Mingw32" section of INSTALL.W32 for information on how to obtain and install the free GNU C compiler. @@ -646,26 +649,26 @@ built OpenSSL with /MD your application must use /MD and cannot use /MDd. * How do I read or write a DER encoded buffer using the ASN1 functions? You have two options. You can either use a memory BIO in conjunction -with the i2d_XXX_bio() or d2i_XXX_bio() functions or you can use the -i2d_XXX(), d2i_XXX() functions directly. Since these are often the +with the i2d_*_bio() or d2i_*_bio() functions or you can use the +i2d_*(), d2i_*() functions directly. Since these are often the cause of grief here are some code fragments using PKCS7 as an example: -unsigned char *buf, *p; -int len; + unsigned char *buf, *p; + int len; -len = i2d_PKCS7(p7, NULL); -buf = OPENSSL_malloc(len); /* or Malloc, error checking omitted */ -p = buf; -i2d_PKCS7(p7, &p); + len = i2d_PKCS7(p7, NULL); + buf = OPENSSL_malloc(len); /* or Malloc, error checking omitted */ + p = buf; + i2d_PKCS7(p7, &p); At this point buf contains the len bytes of the DER encoding of p7. The opposite assumes we already have len bytes in buf: -unsigned char *p; -p = buf; -p7 = d2i_PKCS7(NULL, &p, len); + unsigned char *p; + p = buf; + p7 = d2i_PKCS7(NULL, &p, len); At this point p7 contains a valid PKCS7 structure of NULL if an error occurred. If an error occurred ERR_print_errors(bio) should give more