 | KAKU PROJECT (2009) |
kcrypt.c
最終更新：2009/12/16
001: /* kcrypt.c
002: * 暗号化・復号のサンプル
003: */
004:
005: #define USAGE "Usage: kcrypt <cipher_alg> <enc | dec> <input_file> <output_file>"
006:
007: #include "apr_general.h"
008: #include "apr_file_io.h"
009: #include "apr_errno.h"
010: #include "apr_strings.h"
011: #include "apr_buckets.h"
012:
013: #include "mycipher.h"
014: #include "mybb.h"
015: #include "mystab.h"
016:
017: int apr_my_main (int ac, char **av, apr_file_t * astdin, apr_file_t * astdout, apr_file_t * astderr, apr_pool_t * pool) {
018:
019: int error_flag = 0;
020: apr_status_t rv;
021: char error_buf[256];
022:
023:
024: char *cipher_alg = NULL;
025: char *encdec = NULL;
026: char *input_file = NULL;
027: char *output_file = NULL;
028: int enc = 0;
029:
030: if (ac < 5) {
031: apr_file_printf(astderr, "%s\n", USAGE);
032: error_flag = 1;
033: goto _FINALLY_;
034: }
035:
036: cipher_alg = av[1];
037: encdec = av[2];
038: input_file = av[3];
039: output_file = av[4];
040:
041: if (!strcmp(encdec, "enc")) {
042: enc = 1;
043: }
044:
045: init_mycipher();
046:
047: if (1) {
048: apr_bucket_alloc_t *ba = NULL;
049: apr_bucket_brigade *bbin = NULL;
050: apr_bucket_brigade *bbout = NULL;
051: apr_file_t *fpin = NULL;
052: apr_file_t *fpout = NULL;
053: apr_finfo_t finfo;
054: if (APR_SUCCESS != (rv = apr_file_open(&fpin, input_file, APR_FOPEN_READ|APR_FOPEN_BINARY, APR_OS_DEFAULT, pool))) {
055: apr_file_printf(astderr, "ERROR: apr_file_open: %s\n", apr_strerror(rv, error_buf, sizeof(error_buf)));
056: error_flag = 1;
057: goto _FINALLY_;
058: }
059: if (APR_SUCCESS != (rv = apr_file_info_get(&finfo, APR_FINFO_SIZE, fpin))) {
060: apr_file_printf(astderr, "ERROR: apr_file_info_get: %s ", apr_strerror(rv, error_buf, sizeof(error_buf)));
061: apr_file_close(fpin);
062: error_flag = 1;
063: goto _FINALLY_;
064: }
065: if (APR_SUCCESS != (rv = apr_file_open(&fpout, output_file,
066: APR_FOPEN_WRITE|APR_FOPEN_CREATE|APR_FOPEN_TRUNCATE|APR_FOPEN_BINARY, APR_OS_DEFAULT, pool))) {
067: apr_file_close(fpin);
068: apr_file_printf(astderr, "ERROR: apr_file_open: %s ", apr_strerror(rv, error_buf, sizeof(error_buf)));
069: error_flag = 1;
070: goto _FINALLY_;
071: }
072:
073: ba = apr_bucket_alloc_create(pool);
074: bbin = apr_brigade_create(pool, ba);
075: bbout = apr_brigade_create(pool, ba);
076:
077: apr_brigade_insert_file(bbin, fpin, 0, finfo.size, pool);
078:
079: #ifdef DEBUG
080: printf("#finfo.size=[%d]\n", finfo.size);
081: #endif
082:
083: /* メモ：鍵やＩＶは乱数にするのが普通だけど…。 */
084:
085: if(kencdec_from_bb_to_bb(cipher_alg, "0123456789ABCDEF", 16, "This is a pencil", 16, (apr_size_t)finfo.size, bbin, bbout, enc)) {
086: write_from_bb_to_fp (bbout, fpout);
087: } else {
088: error_flag = 1;
089: }
090:
091: apr_file_close(fpout);
092: fpin = NULL;
093: apr_file_close(fpout);
094: fpout = NULL;
095: apr_brigade_destroy(bbin);
096: bbin = NULL;
097: apr_brigade_destroy(bbout);
098: bbout =NULL;
099: apr_bucket_alloc_destroy(ba);
100: ba = NULL;
101: }
102:
103: _FINALLY_:
104:
105: if (error_flag) {
106: apr_file_printf(astderr, "failed!\n");
107: return 1; /* 異常終了 */
108: }
109:
110: apr_file_printf(astdout, "\ndone.\n");
111: return 0; /* 正常終了 */
112:
113: } /* end of main */
114:
| KAKU PROJECT (2009) |