{
ret += last;
last = 0;
- if (1 != sscanf (tok, "%llu", &last))
+ if (1 != SSCANF (tok, "%llu", &last))
{
GNUNET_free (in);
return GNUNET_SYSERR; /* expected number */
{
ret += last;
last = 0;
- if (1 != sscanf (tok, "%llu", &last))
+ if (1 != SSCANF (tok, "%llu", &last))
{
GNUNET_free (in);
return GNUNET_SYSERR; /* expected number */
*/
int
GNUNET_STRINGS_check_filename (const char *filename,
- enum GNUNET_STRINGS_FilenameCheck checks)
+ enum GNUNET_STRINGS_FilenameCheck checks)
{
struct stat st;
if (filename == NULL || filename[0] == '\0')
return GNUNET_YES;
}
+#define MAX_IPV6_ADDRLEN 47
+#define MAX_IPV4_ADDRLEN 21
+#define MAX_IP_ADDRLEN MAX_IPV6_ADDRLEN
+
+
+/**
+ * Tries to convert 'zt_addr' string to an IPv6 address.
+ *
+ * @param zt_addr 0-terminated string. May be mangled by the function.
+ * @param addrlen length of zt_addr (not counting 0-terminator).
+ * @param r_buf a buffer to fill. Initially gets filled with zeroes,
+ * then its sin6_port, sin6_family and sin6_addr are set appropriately.
+ * @return GNUNET_OK if conversion succeded. GNUNET_SYSERR otherwise, in which
+ * case the contents of r_buf are undefined.
+ */
+int
+GNUNET_STRINGS_to_address_ipv6 (const char *zt_addr,
+ uint16_t addrlen,
+ struct sockaddr_in6 *r_buf)
+{
+ int ret;
+ char *port_colon;
+ unsigned int port;
+
+ if (addrlen < 6)
+ return GNUNET_SYSERR;
+
+ port_colon = strrchr (zt_addr, ':');
+ if (port_colon == NULL)
+ return GNUNET_SYSERR;
+ ret = SSCANF (port_colon, ":%u", &port);
+ if (ret != 1 || port > 65535)
+ return GNUNET_SYSERR;
+ port_colon[0] = '\0';
+ memset (r_buf, 0, sizeof (struct sockaddr_in6));
+ ret = inet_pton (AF_INET6, zt_addr, &r_buf->sin6_addr);
+ if (ret <= 0)
+ return GNUNET_SYSERR;
+ r_buf->sin6_port = htonl (port);
+ r_buf->sin6_family = AF_INET6;
+ return GNUNET_OK;
+}
+
+
+/**
+ * Tries to convert 'zt_addr' string to an IPv4 address.
+ *
+ * @param zt_addr 0-terminated string. May be mangled by the function.
+ * @param addrlen length of zt_addr (not counting 0-terminator).
+ * @param r_buf a buffer to fill.
+ * @return GNUNET_OK if conversion succeded. GNUNET_SYSERR otherwise, in which case
+ * the contents of r_buf are undefined.
+ */
+int
+GNUNET_STRINGS_to_address_ipv4 (const char *zt_addr, uint16_t addrlen,
+ struct sockaddr_in *r_buf)
+{
+ unsigned int temps[5];
+ unsigned int port;
+ int cnt;
+
+ if (addrlen < 9)
+ return GNUNET_SYSERR;
+
+ cnt = SSCANF (zt_addr, "%u.%u.%u.%u:%u", &temps[0], &temps[1], &temps[2], &temps[3], &port);
+ if (cnt != 5)
+ return GNUNET_SYSERR;
+
+ for (cnt = 0; cnt < 4; cnt++)
+ if (temps[cnt] > 0xFF)
+ return GNUNET_SYSERR;
+ if (port > 65535)
+ return GNUNET_SYSERR;
+
+ r_buf->sin_family = AF_INET;
+ r_buf->sin_port = htonl (port);
+ r_buf->sin_addr.s_addr = htonl ((temps[0] << 24) + (temps[1] << 16) +
+ (temps[2] << 8) + temps[3]);
+ return GNUNET_OK;
+}
+
+/**
+ * Tries to convert 'addr' string to an IP (v4 or v6) address.
+ * IPv6 address must have its address part enclosed in '()' parens
+ * instead of '[]'.
+ * Will automatically decide whether to treat 'addr' as v4 or v6 address.
+ *
+ * @param addr a string, may not be 0-terminated.
+ * @param addrlen number of bytes in addr (if addr is 0-terminated,
+ * 0-terminator should not be counted towards addrlen).
+ * @param r_buf a buffer to fill.
+ * @return GNUNET_OK if conversion succeded. GNUNET_SYSERR otherwise, in which
+ * case the contents of r_buf are undefined.
+ */
+int
+GNUNET_STRINGS_to_address_ip (const char *addr,
+ uint16_t addrlen,
+ struct sockaddr_storage *r_buf)
+{
+ uint16_t i;
+ char zt_addr[MAX_IP_ADDRLEN + 1];
+ uint16_t zt_len = addrlen <= MAX_IP_ADDRLEN ? addrlen : MAX_IP_ADDRLEN;
+
+ if (addrlen < 1)
+ return GNUNET_SYSERR;
+
+ memset (zt_addr, 0, MAX_IP_ADDRLEN + 1);
+ strncpy (zt_addr, addr, zt_len);
+
+ /* For URIs we use '(' and ')' instead of '[' and ']'. Do the substitution
+ * now, as GNUNET_STRINGS_to_address_ipv6() takes a proper []-enclosed IPv6
+ * address.
+ */
+ if (zt_addr[0] == '(')
+ {
+ for (i = 0; i < zt_len; i++)
+ {
+ switch (zt_addr[i])
+ {
+ case '(':
+ zt_addr[i] = '[';
+ break;
+ case ')':
+ zt_addr[i] = ']';
+ break;
+ default:
+ break;
+ }
+ }
+ return GNUNET_STRINGS_to_address_ipv6 (zt_addr, zt_len, (struct sockaddr_in6 *) r_buf);
+ }
+ return GNUNET_STRINGS_to_address_ipv4 (zt_addr, zt_len, (struct sockaddr_in *) r_buf);
+}
+
/* end of strings.c */