123 lines
2.8 KiB
C
123 lines
2.8 KiB
C
//Compile with:
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// gcc -o eet-data-cipher_decipher eet-data-cipher_decipher.c `pkg-config --cflags --libs eet eina`
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#include <Eina.h>
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#include <Eet.h>
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#include <stdio.h>
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#include <limits.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <string.h>
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int
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main(void)
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{
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const char *buffer = "Here is a string of data to save !";
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const char *key = "This is a crypto key";
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const char *key_bad = "This is another crypto key";
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Eet_File *ef;
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char *test;
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int size;
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int tmpfd;
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Eina_Tmpstr *tmpf = NULL;
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eet_init();
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if (-1 == (tmpfd = eina_file_mkstemp("eet_cipher_example_XXXXXX", &tmpf)) || !!close(tmpfd))
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{
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fprintf(
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stderr, "ERROR: could not create temporary file (%s) : %s\n",
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tmpf, strerror(errno));
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goto panic;
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}
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/* Crypt an eet file. */
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ef = eet_open(tmpf, EET_FILE_MODE_WRITE);
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if (!ef)
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{
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fprintf(
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stderr, "ERROR: could not access file (%s).\n", tmpf);
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goto error;
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}
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if (!eet_write_cipher(ef, "keys/tests", buffer, strlen(buffer) + 1, 0, key))
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{
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fprintf(
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stderr, "ERROR: could not access file (%s).\n", tmpf);
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goto error;
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}
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eet_close(ef);
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/* Decrypt an eet file. */
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ef = eet_open(tmpf, EET_FILE_MODE_READ);
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if (!ef)
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{
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fprintf(
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stderr, "ERROR: could not access file (%s).\n", tmpf);
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goto error;
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}
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test = eet_read_cipher(ef, "keys/tests", &size, key);
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if (!test)
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{
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fprintf(
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stderr, "ERROR: could decript contents on file %s, with key %s.\n",
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tmpf, key);
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goto error;
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}
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if (size != (int)strlen(buffer) + 1)
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{
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fprintf(
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stderr, "ERROR: something is wrong with the decripted data\n");
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goto error;
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}
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if (memcmp(test, buffer, strlen(buffer) + 1) != 0)
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{
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fprintf(
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stderr, "ERROR: something is wrong with the decripted data\n");
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goto error;
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}
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eet_close(ef);
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/* Decrypt an eet file, now using our BAD key!! */
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ef = eet_open(tmpf, EET_FILE_MODE_READ);
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if (!ef)
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{
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fprintf(
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stderr, "ERROR: could not access file (%s).\n", tmpf);
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goto error;
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}
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test = eet_read_cipher(ef, "keys/tests", &size, key_bad);
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if (size == (int)strlen(buffer) + 1)
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if (memcmp(test, buffer, strlen(buffer) + 1) == 0)
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{
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fprintf(
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stderr, "ERROR: something is wrong with the contents of %s, as"
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" we accessed it with a different key and it decripted our"
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" information right.\n", tmpf);
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goto error;
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}
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eet_close(ef);
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error:
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if (unlink(tmpf) != 0)
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{
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fprintf(
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stderr, "ERROR: could not unlink file (%s)%d.\n", tmpf, errno);
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}
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eina_tmpstr_del(tmpf);
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panic:
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eet_shutdown();
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}
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