if (!user && !fqdn)
return 0;
- memset(user, 0, user_size);
- memset(fqdn, 0, fqdn_size);
+ if (user)
+ memset(user, 0, user_size);
+ if (user)
+ memset(fqdn, 0, fqdn_size);
if (!string)
return 0;
char *silc_fingerprint(const unsigned char *data, SilcUInt32 data_len)
{
- char fingerprint[64], *cp;
- int i;
+ unsigned char *fingerprint, *cp;
+ unsigned int len, blocks, i;
+
+ if (!data || !data_len)
+ return NULL;
+
+ if (data_len >= 256)
+ data_len = 255;
+
+ /* Align and calculate total length */
+ len = ((data_len + 19) / 20) * 20;
+ blocks = (len / 10);
+ len = (len * 2) + ((blocks - 1) * 2) + (4 * blocks) + 2 + 1;
+
+ cp = fingerprint = silc_calloc(len, sizeof(*fingerprint));
+ if (!cp)
+ return NULL;
- memset(fingerprint, 0, sizeof(fingerprint));
- cp = fingerprint;
for (i = 0; i < data_len; i++) {
- silc_snprintf(cp, sizeof(fingerprint), "%02X", data[i]);
+ silc_snprintf(cp, len, "%02X", data[i]);
cp += 2;
+ len -= 2;
if ((i + 1) % 2 == 0)
- silc_snprintf(cp++, sizeof(fingerprint), " ");
-
+ silc_snprintf(cp++, len--, " ");
if ((i + 1) % 10 == 0)
- silc_snprintf(cp++, sizeof(fingerprint), " ");
+ silc_snprintf(cp++, len--, " ");
}
i--;
- if ((i + 1) % 2 == 0)
- cp[-2] = 0;
if ((i + 1) % 10 == 0)
- cp[-1] = 0;
+ *(--cp) = '\0';
+ if ((i + 1) % 2 == 0)
+ *(--cp) = '\0';
- return strdup(fingerprint);
+ return fingerprint;
}
/* Return TRUE if the `data' is ASCII string. */
printf("%s", prompt);
fflush(stdout);
+ read_again1:
if ((read(fd, input, sizeof(input))) < 0) {
+ if (errno == EAGAIN || errno == EINTR)
+ goto read_again1;
fprintf(stderr, "silc: %s\n", strerror(errno));
+ signal(SIGINT, SIG_DFL);
tcsetattr(fd, TCSANOW, &to_old);
return NULL;
}
if (strlen(input) <= 1) {
+ signal(SIGINT, SIG_DFL);
tcsetattr(fd, TCSANOW, &to_old);
return NULL;
}
printf("%s", prompt);
fflush(stdout);
+ signal(SIGINT, SIG_IGN);
+
+ read_again2:
if ((read(fd, input, sizeof(input))) < 0) {
+ if (errno == EAGAIN || errno == EINTR)
+ goto read_again2;
fprintf(stderr, "silc: %s\n", strerror(errno));
+ signal(SIGINT, SIG_DFL);
return NULL;
}
+ signal(SIGINT, SIG_DFL);
+
if (strlen(input) <= 1)
return NULL;