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/* See LICENSE file for copyright and license details. */
#include "../libsyscalls.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if defined(__clang__)
# pragma clang diagnostic ignored "-Wunsafe-buffer-usage" /* clang is just being silly */
#endif
int
main(int argc, char **argv)
{
struct libsyscalls_datatype_description type;
const char *text;
char *data;
size_t dataoff, i;
unsigned long long int value;
unsigned char high, low;
enum libsyscalls_error err;
_Static_assert(CHAR_BIT, "We only support 8-bit char at the moment in testutil/to-tracer-endian.c");
if (argc < 5) {
usage:
fprintf(stderr, "usage error\n");
return 1;
}
#if defined(__GNUC__)
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Wconversion"
#endif
text = argv[1];
dataoff = (size_t)atol(argv[2]);
type.width_in_bits = (unsigned short int)atoi(argv[3]);
argv = &argv[4];
i = 0;
for (; argv[i] && i < sizeof(type.byteorder) / sizeof(*type.byteorder); i++)
type.byteorder[i] = (unsigned)atoi(argv[i]);
if (argv[i])
goto usage;
for (; i < sizeof(type.byteorder) / sizeof(*type.byteorder); i++) {
type.byteorder[i] = 0U;
type.byteorder[i] = ~type.byteorder[i];
}
#if defined(__clang__)
# pragma GCC diagnostic pop
#endif
if (strlen(text) & 1 || !strlen(text))
goto usage;
data = malloc(strlen(text) / 2);
for (i = 0; *text; i++) {
high = (unsigned char)*text++;
low = (unsigned char)*text++;
high = (unsigned char)((high & 15U) + (high > '9' ? 9U : 0U));
low = (unsigned char)((low & 15U) + (low > '9' ? 9U : 0U));
data[i] = (char)((high << 4) | low);
}
err = libsyscalls_to_tracer_endian(data, dataoff, &type, &value);
free(data);
if (err == LIBSYSCALLS_E_INVAL) {
printf("inval\n");
goto out;
} else if (err) {
fprintf(stderr, "to-tracer-endian");
for (argv = &argv[1 - argc]; *argv; argv++)
fprintf(stderr, " %s", *argv);
fprintf(stderr, ": ");
libsyscalls_perror(NULL, err);
return 1;
}
printf("%llX\n", value);
out:
if (fflush(stdout) || fclose(stdout)) {
perror(NULL);
return 1;
}
return 0;
}
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