Streamlined security for mobile and embedded devices
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| RSA BSAFE Micro Edition Suite |
Streamlined security for mobile and embedded devices |
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/* $Id: cm_type.c,v 1.12 2005/07/27 01:10:33 itaylor Exp $ */ /* * Copyright (C) 1998-2003 RSA Security Inc. * * This file shall only be used to demonstrate how to interface to an * RSA Security Inc. licensed development product. * * You have a royalty-free right to use, reproduce and distribute this * demonstration file, provided that you agree that RSA Security Inc. * has no warranty, implied or otherwise, or liability for this * demonstration file (including any modified version). This software * is provided "as is" without warranties or representations of any * kind. RSA Security disclaims all conditions and warranties, statutory * and otherwise, both express and implied, with respect to the software, * its quality and performance, including but not limited to, all * implied warranties of merchantability, fitness for a particular * purpose, title and noninfringement of third party rights. Without * limiting the foregoing, RSA Security does not warrant that the * software is error-free or that errors in the product will be * corrected. You agree that RSA Security shall not be liable for any * direct, indirect, incidental, special, consequential, punitive or * other damages whatsoever resulting from your use of this software * or any modified version. * * */ /* * This sample demonstrates identifying the content type identifier of a * supplied PKCS #7 message. The toolkit supports data, signed data and * enveloped data message types. * * For information detailing generating PKCS #7 signed messages, * see cm_sign.c. * * For example, to output the content type of an input cryptographic: * message, use: * * cm_type -cm_msg signed.data */ #include "r_prod.h" #include "cm_com.h" #define CM_SMPL_RESOURCE_LIST PRODUCT_DEFAULT_RESOURCE_LIST /* Usage help message. */ static char *cm_type_usage[] = { "usage: cm_type [options]\n", "where options are:\n", " -cm_msg file - The file containing the cryptographic message\n", NULL }; /* * Main sample program entry point * * @param argc [In] The number of arguments typed on the command line. * @param argv [In] The array of individual arguments from the command line. * * @returns R_ERROR_NONE indicates success. */ int main(int argc, char **argv) { R_LIB_CTX *lib_ctx = NULL; R_CM_CTX *ctx = NULL; R_CM *obj = NULL; BIO *bio_out = NULL; R_ITEM data = { 0, NULL }; char *cm_file; unsigned char *cm_data = NULL; unsigned char type[R_CM_TYPE_MAX_STR_LENGTH]; unsigned int num_used; unsigned int cm_len; int ret = R_ERROR_NONE; R_CM_TYPE data_type; /* Set the defaults */ cm_file = NULL; /* * Create BIO to stdout * BIOs are the Basic Input/Output mechanism provided by RSA and are * recommended for all input and output from applications. */ if ((bio_out = BIO_new_fp(stdout, BIO_NOCLOSE)) == NULL) { ret = R_ERROR_ALLOC_FAILURE; goto end; } /* * Parse the command line parameters */ /* Skip the program name */ argc--; argv++; /* Process all command line options */ while (argc >= 1) { if (Strcmp(*argv, "-cm_msg") == 0) { if (--argc < 1) { goto bad; } cm_file = *(++argv); } else { BIO_printf(bio_out, "Unknown option %s\n", *argv); goto bad; } argc--; argv++; } /* Simple checks first */ if (cm_file == NULL) { BIO_printf(bio_out, "Input file required\n"); goto bad; } /* Display the help menu if an invalid command line option was entered */ if (0) { char **pp; bad: for (pp = cm_type_usage; (*pp != NULL); pp++) { BIO_printf(bio_out, *pp); } goto end; } /* * Create the library context. * Retrieve the default resource list and create a library context to * provide access to all configurable aspects of the library. */ if ((ret = PRODUCT_LIBRARY_NEW(CM_SMPL_RESOURCE_LIST(), R_RES_FLAG_DEF, &lib_ctx)) != R_ERROR_NONE) { BIO_printf(bio_out, "Library new failure\n"); goto end; } /* * Create a new R_CM context. */ if ((ret = R_CM_CTX_new(lib_ctx, R_RES_FLAG_DEF, R_CM_TYPE_DEFAULT, &ctx)) != R_ERROR_NONE) { BIO_printf(bio_out, "R_CM_CTX_new failure\n"); goto end; } /* * Read the data from cryptographic message file into the buffer. * The cryptographic message is in binary form and simply copied to a * buffer pointed to by cm_data. */ if ((ret = data_from_file(bio_out, cm_file, &cm_data, &cm_len)) != R_ERROR_NONE) { goto end; } /* * Load the cryptographic message buffer into a cryptographic * message object. */ if ((ret = R_CM_from_binary(ctx, R_FLAG_SHARE_DATA, R_CM_TYPE_UNKNOWN, R_CM_ENCODING_FORMAT_WRAPPED, cm_len, cm_data, &num_used, &obj)) != R_ERROR_NONE) { BIO_printf(bio_out, "From binary failure\n"); goto end; } /* * Determine the content type of the cryptographic message. * The content type of the cryptographic message is used to determine * how to handle the attached data within the cryptographic message. */ if ((ret = R_CM_get_info(obj, R_CM_INFO_TYPE, &data_type)) != R_ERROR_NONE) { BIO_printf(bio_out, "Retrieve content type failure\n"); goto end; } else { if ((ret = R_CM_TYPE_to_string(data_type, sizeof(type), (char *)type)) != R_ERROR_NONE) { BIO_printf(bio_out, "Content type string conversion failure\n"); } else { BIO_printf(bio_out, "Content Type: %s\n",type); } } end: /* * Clean up. * Report errors if there is an output stream using both the error and the * string representation. * Destroy the dynamically allocated objects and return an exit code. */ if ((ret != R_ERROR_NONE) && (bio_out != NULL)) { BIO_printf(bio_out, "ERROR: (%d) %s\n", ret, R_LIB_CTX_get_error_string(lib_ctx, R_RES_MOD_ID_LIBRARY, ret)); } if (cm_data != NULL) { Free(cm_data); } if (data.data != NULL) { Free(data.data); } if (obj != NULL) { R_CM_free(obj); } if (ctx != NULL) { R_CM_CTX_free(ctx); } if (lib_ctx != NULL) { PRODUCT_LIBRARY_FREE(lib_ctx); } if (bio_out != NULL) { BIO_free(bio_out); } return(R_ERROR_EXIT_CODE(ret)); }