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improve hashsum a bit

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This commit is contained in:
Steffen Jaeckel 2017-05-01 14:10:24 +02:00
parent 1712c0eae1
commit d02531d4d2
1 changed files with 19 additions and 5 deletions
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24
demos/hashsum.c
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@ -9,6 +9,12 @@
#include <tomcrypt.h> #include <tomcrypt.h>
#if _POSIX_C_SOURCE >= 200112L
#include <libgen.h>
#else
#define basename(x) x
#endif
int errno; int errno;
void register_algs(void); void register_algs(void);
@ -22,24 +28,31 @@ int main(int argc, char **argv)
/* You need to register algorithms before using them */ /* You need to register algorithms before using them */
register_algs(); register_algs();
if (argc < 2) { if (argc < 2) {
printf("usage: ./hash algorithm file [file ...]\n"); printf("usage: %s algorithm file [file ...]\n", basename(argv[0]));
printf("Algorithms:\n"); printf("Algorithms:\n");
w = 0;
for (x = 0; hash_descriptor[x].name != NULL; x++) { for (x = 0; hash_descriptor[x].name != NULL; x++) {
printf(" %s (%d)\n", hash_descriptor[x].name, hash_descriptor[x].ID); w += printf("%-14s", hash_descriptor[x].name);
if (w >= 70) {
printf("\n");
w = 0;
}
} }
printf("\n");
exit(EXIT_SUCCESS); exit(EXIT_SUCCESS);
} }
idx = find_hash(argv[1]); idx = find_hash(argv[1]);
if (idx == -1) { if (idx == -1) {
fprintf(stderr, "\nInvalid hash specified on command line.\n"); fprintf(stderr, "\nInvalid hash specified on command line.\n");
return -1; return EXIT_FAILURE;
} }
if (argc == 2) { if (argc == 2) {
w = sizeof(hash_buffer); w = sizeof(hash_buffer);
if ((errno = hash_filehandle(idx, stdin, hash_buffer, &w)) != CRYPT_OK) { if ((errno = hash_filehandle(idx, stdin, hash_buffer, &w)) != CRYPT_OK) {
printf("File hash error: %s\n", error_to_string(errno)); fprintf(stderr, "File hash error: %s\n", error_to_string(errno));
return EXIT_FAILURE;
} else { } else {
for (x = 0; x < w; x++) { for (x = 0; x < w; x++) {
printf("%02x",hash_buffer[x]); printf("%02x",hash_buffer[x]);
@ -50,7 +63,8 @@ int main(int argc, char **argv)
for (z = 2; z < argc; z++) { for (z = 2; z < argc; z++) {
w = sizeof(hash_buffer); w = sizeof(hash_buffer);
if ((errno = hash_file(idx,argv[z],hash_buffer,&w)) != CRYPT_OK) { if ((errno = hash_file(idx,argv[z],hash_buffer,&w)) != CRYPT_OK) {
printf("File hash error: %s\n", error_to_string(errno)); fprintf(stderr, "File hash error: %s\n", error_to_string(errno));
return EXIT_FAILURE;
} else { } else {
for (x = 0; x < w; x++) { for (x = 0; x < w; x++) {
printf("%02x",hash_buffer[x]); printf("%02x",hash_buffer[x]);