/*
- * "$Id: http-addr.c 4950 2006-01-19 16:07:57Z mike $"
+ * "$Id: http-addr.c 6814 2007-08-20 20:09:25Z mike $"
*
* HTTP address routines for the Common UNIX Printing System (CUPS).
*
- * Copyright 1997-2005 by Easy Software Products, all rights reserved.
+ * Copyright 2007-2008 by Apple Inc.
+ * Copyright 1997-2006 by Easy Software Products, all rights reserved.
*
* These coded instructions, statements, and computer programs are the
- * property of Easy Software Products and are protected by Federal
- * copyright law. Distribution and use rights are outlined in the file
- * "LICENSE.txt" which should have been included with this file. If this
- * file is missing or damaged please contact Easy Software Products
- * at:
- *
- * Attn: CUPS Licensing Information
- * Easy Software Products
- * 44141 Airport View Drive, Suite 204
- * Hollywood, Maryland 20636 USA
- *
- * Voice: (301) 373-9600
- * EMail: cups-info@cups.org
- * WWW: http://www.cups.org
+ * property of Apple Inc. and are protected by Federal copyright
+ * law. Distribution and use rights are outlined in the file "LICENSE.txt"
+ * which should have been included with this file. If this file is
+ * file is missing or damaged, see the license at "http://www.cups.org/".
*
* Contents:
*
* httpAddrEqual() - Compare two addresses.
* httpAddrLocalhost() - Check for the local loopback address.
* httpAddrLookup() - Lookup the hostname associated with the address.
+ * _httpAddrPort() - Get the port number associated with an address.
* httpAddrString() - Convert an IP address to a dotted string.
* httpGetHostByName() - Lookup a hostname or IP address, and return
* address records for the specified name.
int /* O - 1 if "any", 0 otherwise */
httpAddrAny(const http_addr_t *addr) /* I - Address to check */
{
+ if (!addr)
+ return (0);
+
#ifdef AF_INET6
if (addr->addr.sa_family == AF_INET6 &&
IN6_IS_ADDR_UNSPECIFIED(&(addr->ipv6.sin6_addr)))
* @since CUPS 1.2@
*/
-int /* O - 1 if equal, 0 if != */
+int /* O - 1 if equal, 0 if not */
httpAddrEqual(const http_addr_t *addr1, /* I - First address */
const http_addr_t *addr2) /* I - Second address */
{
+ if (!addr1 && !addr2)
+ return (1);
+
+ if (!addr1 || !addr2)
+ return (0);
+
if (addr1->addr.sa_family != addr2->addr.sa_family)
return (0);
int /* O - Length in bytes */
httpAddrLength(const http_addr_t *addr) /* I - Address */
{
+ if (!addr)
+ return (0);
+
#ifdef AF_INET6
if (addr->addr.sa_family == AF_INET6)
return (sizeof(addr->ipv6));
httpAddrLocalhost(
const http_addr_t *addr) /* I - Address to check */
{
+ if (!addr)
+ return (1);
+
#ifdef AF_INET6
if (addr->addr.sa_family == AF_INET6 &&
IN6_IS_ADDR_LOOPBACK(&(addr->ipv6.sin6_addr)))
* @since CUPS 1.2@
*/
-char * /* O - Host name */
-httpAddrLookup(const http_addr_t *addr, /* I - Address to lookup */
- char *name, /* I - Host name buffer */
- int namelen) /* I - Size of name buffer */
+char * /* O - Host name */
+httpAddrLookup(
+ const http_addr_t *addr, /* I - Address to lookup */
+ char *name, /* I - Host name buffer */
+ int namelen) /* I - Size of name buffer */
{
DEBUG_printf(("httpAddrLookup(addr=%p, name=%p, namelen=%d)\n",
addr, name, namelen));
#endif /* AF_LOCAL */
#ifdef HAVE_GETNAMEINFO
{
- char servname[1024]; /* Service name (not used) */
-
+ /*
+ * STR #2486: httpAddrLookup() fails when getnameinfo() returns EAI_AGAIN
+ *
+ * FWIW, I think this is really a bug in the implementation of
+ * getnameinfo(), but falling back on httpAddrString() is easy to
+ * do...
+ */
if (getnameinfo(&addr->addr, httpAddrLength(addr), name, namelen,
- servname, sizeof(servname), 0))
- {
- /*
- * If we get an error back, then the address type is not supported
- * and we should zero out the buffer...
- */
-
- name[0] = '\0';
-
- return (NULL);
- }
+ NULL, 0, 0))
+ return (httpAddrString(addr, name, namelen));
}
#else
{
/*
- * 'httpAddrString()' - Convert an IP address to a dotted string.
+ * '_httpAddrPort()' - Get the port number associated with an address.
+ */
+
+int /* O - Port number */
+_httpAddrPort(http_addr_t *addr) /* I - Address */
+{
+ if (!addr)
+ return (ippPort());
+#ifdef AF_INET6
+ else if (addr->addr.sa_family == AF_INET6)
+ return (ntohs(addr->ipv6.sin6_port));
+#endif /* AF_INET6 */
+ else if (addr->addr.sa_family == AF_INET)
+ return (ntohs(addr->ipv4.sin_port));
+ else
+ return (ippPort());
+}
+
+
+/*
+ * 'httpAddrString()' - Convert an address to a numeric string.
*
* @since CUPS 1.2@
*/
-char * /* O - IP string */
-httpAddrString(const http_addr_t *addr, /* I - Address to convert */
- char *s, /* I - String buffer */
- int slen) /* I - Length of string */
+char * /* O - Numeric address string */
+httpAddrString(const http_addr_t *addr, /* I - Address to convert */
+ char *s, /* I - String buffer */
+ int slen) /* I - Length of string */
{
DEBUG_printf(("httpAddrString(addr=%p, s=%p, slen=%d)\n",
addr, s, slen));
strlcpy(s, addr->un.sun_path, slen);
else
#endif /* AF_LOCAL */
-#ifdef HAVE_GETNAMEINFO
+ if (addr->addr.sa_family == AF_INET)
{
- char servname[1024]; /* Service name (not used) */
+ unsigned temp; /* Temporary address */
+
+ temp = ntohl(addr->ipv4.sin_addr.s_addr);
+ snprintf(s, slen, "%d.%d.%d.%d", (temp >> 24) & 255,
+ (temp >> 16) & 255, (temp >> 8) & 255, temp & 255);
+ }
+#ifdef AF_INET6
+ else if (addr->addr.sa_family == AF_INET6)
+ {
+# ifdef HAVE_GETNAMEINFO
if (getnameinfo(&addr->addr, httpAddrLength(addr), s, slen,
- servname, sizeof(servname), NI_NUMERICHOST))
+ NULL, 0, NI_NUMERICHOST))
{
/*
* If we get an error back, then the address type is not supported
return (NULL);
}
- }
-#else
- {
-#ifdef AF_INET6
- if (addr->addr.sa_family == AF_INET6)
+# else
+ char *sptr; /* Pointer into string */
+ int i; /* Looping var */
+ unsigned temp; /* Current value */
+ const char *prefix; /* Prefix for address */
+
+
+ prefix = "";
+ for (sptr = s, i = 0; i < 4 && addr->ipv6.sin6_addr.s6_addr32[i]; i ++)
{
- char *sptr; /* Pointer into string */
- int i; /* Looping var */
- unsigned temp; /* Current value */
- const char *prefix; /* Prefix for address */
+ temp = ntohl(addr->ipv6.sin6_addr.s6_addr32[i]);
+ snprintf(sptr, slen, "%s%x", prefix, (temp >> 16) & 0xffff);
+ prefix = ":";
+ slen -= strlen(sptr);
+ sptr += strlen(sptr);
- prefix = "";
- for (sptr = s, i = 0; i < 4 && addr->ipv6.sin6_addr.s6_addr32[i]; i ++)
- {
- temp = ntohl(addr->ipv6.sin6_addr.s6_addr32[i]);
+ temp &= 0xffff;
- snprintf(sptr, slen, "%s%x", prefix, (temp >> 16) & 0xffff);
- prefix = ":";
+ if (temp || i == 3 || addr->ipv6.sin6_addr.s6_addr32[i + 1])
+ {
+ snprintf(sptr, slen, "%s%x", prefix, temp);
slen -= strlen(sptr);
sptr += strlen(sptr);
-
- temp &= 0xffff;
-
- if (temp || i == 3 || addr->ipv6.sin6_addr.s6_addr32[i + 1])
- {
- snprintf(sptr, slen, "%s%x", prefix, temp);
- slen -= strlen(sptr);
- sptr += strlen(sptr);
- }
}
+ }
+
+ if (i < 4)
+ {
+ while (i < 4 && !addr->ipv6.sin6_addr.s6_addr32[i])
+ i ++;
if (i < 4)
{
- while (i < 4 && !addr->ipv6.sin6_addr.s6_addr32[i])
- i ++;
+ snprintf(sptr, slen, "%s:", prefix);
+ prefix = ":";
+ slen -= strlen(sptr);
+ sptr += strlen(sptr);
- if (i < 4)
+ for (; i < 4; i ++)
{
- snprintf(sptr, slen, "%s:", prefix);
- prefix = ":";
- slen -= strlen(sptr);
- sptr += strlen(sptr);
+ temp = ntohl(addr->ipv6.sin6_addr.s6_addr32[i]);
- for (; i < 4; i ++)
+ if ((temp & 0xffff0000) || addr->ipv6.sin6_addr.s6_addr32[i - 1])
{
- temp = ntohl(addr->ipv6.sin6_addr.s6_addr32[i]);
-
- if ((temp & 0xffff0000) || addr->ipv6.sin6_addr.s6_addr32[i - 1])
- {
- snprintf(sptr, slen, "%s%x", prefix, (temp >> 16) & 0xffff);
- slen -= strlen(sptr);
- sptr += strlen(sptr);
- }
-
- snprintf(sptr, slen, "%s%x", prefix, temp & 0xffff);
+ snprintf(sptr, slen, "%s%x", prefix, (temp >> 16) & 0xffff);
slen -= strlen(sptr);
sptr += strlen(sptr);
- }
- }
- else if (sptr == s)
- {
- /*
- * Empty address...
- */
-
- strlcpy(s, "::", slen);
- sptr = s + 2;
- slen -= 2;
- }
- else
- {
- /*
- * Empty at end...
- */
+ }
- strlcpy(sptr, "::", slen);
- sptr += 2;
- slen -= 2;
+ snprintf(sptr, slen, "%s%x", prefix, temp & 0xffff);
+ slen -= strlen(sptr);
+ sptr += strlen(sptr);
}
}
- }
- else
-#endif /* AF_INET6 */
- if (addr->addr.sa_family == AF_INET)
- {
- unsigned temp; /* Temporary address */
-
+ else if (sptr == s)
+ {
+ /*
+ * Empty address...
+ */
- temp = ntohl(addr->ipv4.sin_addr.s_addr);
+ strlcpy(s, "::", slen);
+ sptr = s + 2;
+ slen -= 2;
+ }
+ else
+ {
+ /*
+ * Empty at end...
+ */
- snprintf(s, slen, "%d.%d.%d.%d", (temp >> 24) & 255,
- (temp >> 16) & 255, (temp >> 8) & 255, temp & 255);
+ strlcpy(sptr, "::", slen);
+ sptr += 2;
+ slen -= 2;
+ }
}
- else
- strlcpy(s, "UNKNOWN", slen);
+# endif /* HAVE_GETNAMEINFO */
}
-#endif /* HAVE_GETNAMEINFO */
+#endif /* AF_INET6 */
+ else
+ strlcpy(s, "UNKNOWN", slen);
DEBUG_printf(("httpAddrString: returning \"%s\"...\n", s));
/*
- * 'httpGetHostname()' - Get the FQDN for the local system.
+ * 'httpGetHostname()' - Get the FQDN for the connection or local system.
*
- * This function uses both gethostname() and gethostbyname() to
- * get the local hostname with domain.
+ * When "http" points to a connected socket, return the hostname or
+ * address that was used in the call to httpConnect() or httpConnectEncrypt().
+ * Otherwise, return the FQDN for the local system using both gethostname()
+ * and gethostbyname() to get the local hostname with domain.
*
* @since CUPS 1.2@
*/
-const char * /* O - FQDN for this system */
-httpGetHostname(char *s, /* I - String buffer for name */
- int slen) /* I - Size of buffer */
+const char * /* O - FQDN for connection or system */
+httpGetHostname(http_t *http, /* I - HTTP connection or NULL */
+ char *s, /* I - String buffer for name */
+ int slen) /* I - Size of buffer */
{
struct hostent *host; /* Host entry to get FQDN */
- /*
- * Get the hostname...
- */
-
- gethostname(s, slen);
+ if (!s || slen <= 1)
+ return (NULL);
- if (!strchr(s, '.'))
+ if (http)
+ {
+ if (http->hostname[0] == '/')
+ strlcpy(s, "localhost", slen);
+ else
+ strlcpy(s, http->hostname, slen);
+ }
+ else
{
/*
- * The hostname is not a FQDN, so look it up...
+ * Get the hostname...
*/
- if ((host = gethostbyname(s)) != NULL)
- strlcpy(s, host->h_name, slen);
+ if (gethostname(s, slen) < 0)
+ strlcpy(s, "localhost", slen);
+
+ if (!strchr(s, '.'))
+ {
+ /*
+ * The hostname is not a FQDN, so look it up...
+ */
+
+ if ((host = gethostbyname(s)) != NULL && host->h_name)
+ strlcpy(s, host->h_name, slen);
+ }
}
/*
/*
- * End of "$Id: http-addr.c 4950 2006-01-19 16:07:57Z mike $".
+ * End of "$Id: http-addr.c 6814 2007-08-20 20:09:25Z mike $".
*/
projects / thirdparty / cups.git / blobdiff