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109 lines
2.1 KiB
109 lines
2.1 KiB
/**
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* Author......: See docs/credits.txt
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* License.....: MIT
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*/
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#include "common.h"
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#include "types.h"
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#include "memory.h"
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#include "logging.h"
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#include "shared.h"
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#include "loopback.h"
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void loopback_init (loopback_ctx_t *loopback_ctx)
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{
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loopback_ctx->fp = NULL;
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loopback_ctx->filename = (char *) mymalloc (HCBUFSIZ_TINY);
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}
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void loopback_destroy (loopback_ctx_t *loopback_ctx)
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{
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myfree (loopback_ctx->filename);
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}
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int loopback_write_open (loopback_ctx_t *loopback_ctx, const char *induction_directory)
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{
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time_t now;
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time (&now);
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const uint random_num = get_random_num (0, 9999);
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snprintf (loopback_ctx->filename, HCBUFSIZ_TINY - 1, "%s/%s.%d_%u", induction_directory, LOOPBACK_FILE, (int) now, random_num);
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loopback_ctx->fp = fopen (loopback_ctx->filename, "ab");
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if (loopback_ctx->fp == NULL)
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{
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log_error ("ERROR: %s: %s", loopback_ctx->filename, strerror (errno));
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return -1;
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}
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return 0;
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}
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void loopback_write_unlink (loopback_ctx_t *loopback_ctx)
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{
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if (loopback_ctx->filename == NULL) return;
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unlink (loopback_ctx->filename);
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}
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void loopback_write_close (loopback_ctx_t *loopback_ctx)
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{
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if (loopback_ctx->fp == NULL) return;
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fclose (loopback_ctx->fp);
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}
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void loopback_format_plain (loopback_ctx_t *loopback_ctx, const u8 *plain_ptr, const unsigned int plain_len)
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{
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int needs_hexify = 0;
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for (uint i = 0; i < plain_len; i++)
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{
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if (plain_ptr[i] < 0x20)
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{
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needs_hexify = 1;
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break;
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}
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if (plain_ptr[i] > 0x7f)
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{
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needs_hexify = 1;
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break;
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}
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}
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if (needs_hexify == 1)
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{
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fprintf (loopback_ctx->fp, "$HEX[");
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for (uint i = 0; i < plain_len; i++)
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{
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fprintf (loopback_ctx->fp, "%02x", plain_ptr[i]);
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}
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fprintf (loopback_ctx->fp, "]");
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}
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else
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{
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fwrite (plain_ptr, plain_len, 1, loopback_ctx->fp);
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}
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}
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void loopback_write_append (loopback_ctx_t *loopback_ctx, const u8 *plain_ptr, const unsigned int plain_len)
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{
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FILE *fp = loopback_ctx->fp;
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loopback_format_plain (loopback_ctx, plain_ptr, plain_len);
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fputc ('\n', fp);
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fflush (fp);
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}
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