/*
- * "$Id: http-addr.c 7910 2008-09-06 00:25:17Z mike $"
+ * HTTP address routines for CUPS.
*
- * HTTP address routines for CUPS.
+ * Copyright 2007-2014 by Apple Inc.
+ * Copyright 1997-2006 by Easy Software Products, all rights reserved.
*
- * Copyright 2007-2012 by Apple Inc.
- * Copyright 1997-2006 by Easy Software Products, all rights reserved.
- *
- * These coded instructions, statements, and computer programs are the
- * 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:
- *
- * httpAddrAny() - Check for the "any" address.
- * httpAddrEqual() - Compare two addresses.
- * httpAddrLength() - Return the length of the address in bytes.
- * httpAddrListen() - Create a listening socket bound to the specified
- * address and port.
- * httpAddrLocalhost() - Check for the local loopback address.
- * httpAddrLookup() - Lookup the hostname associated with the address.
- * httpAddrPort() - Get the port number associated with an address.
- * _httpAddrSetPort() - Set the port number associated with an address.
- * httpAddrString() - Convert an address to a numeric string.
- * httpGetHostByName() - Lookup a hostname or IPv4 address, and return
- * address records for the specified name.
- * httpGetHostname() - Get the FQDN for the connection or local system.
+ * Licensed under Apache License v2.0. See the file "LICENSE" for more information.
*/
/*
*/
#include "cups-private.h"
+#include "debug-internal.h"
+#include <sys/stat.h>
#ifdef HAVE_RESOLV_H
# include <resolv.h>
#endif /* HAVE_RESOLV_H */
/*
* 'httpAddrAny()' - Check for the "any" address.
*
- * @since CUPS 1.2/OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - 1 if "any", 0 otherwise */
}
+/*
+ * 'httpAddrClose()' - Close a socket created by @link httpAddrConnect@ or
+ * @link httpAddrListen@.
+ *
+ * Pass @code NULL@ for sockets created with @link httpAddrConnect2@ and the
+ * listen address for sockets created with @link httpAddrListen@. This function
+ * ensures that domain sockets are removed when closed.
+ *
+ * @since CUPS 2.0/OS 10.10@
+ */
+
+int /* O - 0 on success, -1 on failure */
+httpAddrClose(http_addr_t *addr, /* I - Listen address or @code NULL@ */
+ int fd) /* I - Socket file descriptor */
+{
+#ifdef _WIN32
+ if (closesocket(fd))
+#else
+ if (close(fd))
+#endif /* _WIN32 */
+ return (-1);
+
+#ifdef AF_LOCAL
+ if (addr && addr->addr.sa_family == AF_LOCAL)
+ return (unlink(addr->un.sun_path));
+#endif /* AF_LOCAL */
+
+ return (0);
+}
+
+
/*
* 'httpAddrEqual()' - Compare two addresses.
*
- * @since CUPS 1.2/OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - 1 if equal, 0 if not */
/*
* 'httpAddrLength()' - Return the length of the address in bytes.
*
- * @since CUPS 1.2/OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - Length in bytes */
#endif /* AF_INET6 */
#ifdef AF_LOCAL
if (addr->addr.sa_family == AF_LOCAL)
- return (offsetof(struct sockaddr_un, sun_path) +
- strlen(addr->un.sun_path) + 1);
+ return ((int)(offsetof(struct sockaddr_un, sun_path) + strlen(addr->un.sun_path) + 1));
else
#endif /* AF_LOCAL */
if (addr->addr.sa_family == AF_INET)
* 'httpAddrListen()' - Create a listening socket bound to the specified
* address and port.
*
- * @since CUPS 1.7@
+ * @since CUPS 1.7/macOS 10.9@
*/
int /* O - Socket or -1 on error */
int port) /* I - Port number to bind to */
{
int fd = -1, /* Socket */
- val; /* Socket value */
+ val, /* Socket value */
+ status; /* Bind status */
/*
* Range check input...
*/
- if (!addr || port <= 0)
+ if (!addr || port < 0)
return (-1);
+ /*
+ * Create the socket and set options...
+ */
+
if ((fd = socket(addr->addr.sa_family, SOCK_STREAM, 0)) < 0)
{
_cupsSetHTTPError(HTTP_STATUS_ERROR);
}
val = 1;
- setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
+ setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, CUPS_SOCAST &val, sizeof(val));
#ifdef IPV6_V6ONLY
if (addr->addr.sa_family == AF_INET6)
- setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &val, sizeof(val));
+ setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, CUPS_SOCAST &val, sizeof(val));
#endif /* IPV6_V6ONLY */
- _httpAddrSetPort(addr, port);
+ /*
+ * Bind the socket...
+ */
+
+#ifdef AF_LOCAL
+ if (addr->addr.sa_family == AF_LOCAL)
+ {
+ mode_t mask; /* Umask setting */
+
+ /*
+ * Remove any existing domain socket file...
+ */
+
+ unlink(addr->un.sun_path);
+
+ /*
+ * Save the current umask and set it to 0 so that all users can access
+ * the domain socket...
+ */
+
+ mask = umask(0);
+
+ /*
+ * Bind the domain socket...
+ */
+
+ status = bind(fd, (struct sockaddr *)addr, (socklen_t)httpAddrLength(addr));
+
+ /*
+ * Restore the umask and fix permissions...
+ */
- if (bind(fd, (struct sockaddr *)addr, httpAddrLength(addr)))
+ umask(mask);
+ chmod(addr->un.sun_path, 0140777);
+ }
+ else
+#endif /* AF_LOCAL */
+ {
+ _httpAddrSetPort(addr, port);
+
+ status = bind(fd, (struct sockaddr *)addr, (socklen_t)httpAddrLength(addr));
+ }
+
+ if (status)
{
_cupsSetHTTPError(HTTP_STATUS_ERROR);
return (-1);
}
+ /*
+ * Listen...
+ */
+
if (listen(fd, 5))
{
_cupsSetHTTPError(HTTP_STATUS_ERROR);
return (-1);
}
+ /*
+ * Close on exec...
+ */
+
+#ifndef _WIN32
+ fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC);
+#endif /* !_WIN32 */
+
#ifdef SO_NOSIGPIPE
/*
* Disable SIGPIPE for this socket.
*/
val = 1;
- setsockopt(fd, SOL_SOCKET, SO_NOSIGPIPE, &val, sizeof(val));
+ setsockopt(fd, SOL_SOCKET, SO_NOSIGPIPE, CUPS_SOCAST &val, sizeof(val));
#endif /* SO_NOSIGPIPE */
return (fd);
/*
* 'httpAddrLocalhost()' - Check for the local loopback address.
*
- * @since CUPS 1.2/OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - 1 if local host, 0 otherwise */
/*
* 'httpAddrLookup()' - Lookup the hostname associated with the address.
*
- * @since CUPS 1.2/OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
char * /* O - Host name */
/* Global data */
- DEBUG_printf(("httpAddrLookup(addr=%p, name=%p, namelen=%d)", addr, name,
- namelen));
+ DEBUG_printf(("httpAddrLookup(addr=%p, name=%p, namelen=%d)", (void *)addr, (void *)name, namelen));
/*
* Range check input...
#ifdef AF_LOCAL
if (addr->addr.sa_family == AF_LOCAL)
{
- strlcpy(name, addr->un.sun_path, namelen);
+ strlcpy(name, addr->un.sun_path, (size_t)namelen);
return (name);
}
#endif /* AF_LOCAL */
if (httpAddrLocalhost(addr))
{
- strlcpy(name, "localhost", namelen);
+ strlcpy(name, "localhost", (size_t)namelen);
return (name);
}
* do...
*/
- int error = getnameinfo(&addr->addr, httpAddrLength(addr), name, namelen,
- NULL, 0, 0);
+ int error = getnameinfo(&addr->addr, (socklen_t)httpAddrLength(addr), name, (socklen_t)namelen, NULL, 0, 0);
if (error)
{
return (httpAddrString(addr, name, namelen));
}
- strlcpy(name, host->h_name, namelen);
+ strlcpy(name, host->h_name, (size_t)namelen);
}
#endif /* HAVE_GETNAMEINFO */
}
+/*
+ * 'httpAddrFamily()' - Get the address family of an address.
+ */
+
+int /* O - Address family */
+httpAddrFamily(http_addr_t *addr) /* I - Address */
+{
+ if (addr)
+ return (addr->addr.sa_family);
+ else
+ return (0);
+}
+
+
/*
* 'httpAddrPort()' - Get the port number associated with an address.
*
- * @since CUPS 1.7@
+ * @since CUPS 1.7/macOS 10.9@
*/
int /* O - Port number */
httpAddrPort(http_addr_t *addr) /* I - Address */
{
if (!addr)
- return (ippPort());
+ return (-1);
#ifdef AF_INET6
else if (addr->addr.sa_family == AF_INET6)
return (ntohs(addr->ipv6.sin6_port));
else if (addr->addr.sa_family == AF_INET)
return (ntohs(addr->ipv4.sin_port));
else
- return (ippPort());
-}
-
-int /* O - Port number */
-_httpAddrPort(http_addr_t *addr) /* I - Address */
-{
- /* TODO: Remove in CUPS 1.8 */
- return (httpAddrPort(addr));
+ return (0);
}
/*
* 'httpAddrString()' - Convert an address to a numeric string.
*
- * @since CUPS 1.2/OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
char * /* O - Numeric address string */
char *s, /* I - String buffer */
int slen) /* I - Length of string */
{
- DEBUG_printf(("httpAddrString(addr=%p, s=%p, slen=%d)", addr, s, slen));
+ DEBUG_printf(("httpAddrString(addr=%p, s=%p, slen=%d)", (void *)addr, (void *)s, slen));
/*
* Range check input...
if (addr->addr.sa_family == AF_LOCAL)
{
if (addr->un.sun_path[0] == '/')
- strlcpy(s, addr->un.sun_path, slen);
+ strlcpy(s, addr->un.sun_path, (size_t)slen);
else
- strlcpy(s, "localhost", slen);
+ strlcpy(s, "localhost", (size_t)slen);
}
else
#endif /* AF_LOCAL */
{
unsigned temp; /* Temporary address */
-
temp = ntohl(addr->ipv4.sin_addr.s_addr);
- snprintf(s, slen, "%d.%d.%d.%d", (temp >> 24) & 255,
+ snprintf(s, (size_t)slen, "%d.%d.%d.%d", (temp >> 24) & 255,
(temp >> 16) & 255, (temp >> 8) & 255, temp & 255);
}
#ifdef AF_INET6
temps[64]; /* Temporary string for address */
# ifdef HAVE_GETNAMEINFO
- if (getnameinfo(&addr->addr, httpAddrLength(addr), temps, sizeof(temps),
- NULL, 0, NI_NUMERICHOST))
+ if (getnameinfo(&addr->addr, (socklen_t)httpAddrLength(addr), temps, sizeof(temps), NULL, 0, NI_NUMERICHOST))
{
/*
* If we get an error back, then the address type is not supported
{
temp = ntohl(addr->ipv6.sin6_addr.s6_addr32[i]);
- snprintf(sptr, sizeof(temps) - (sptr - temps), "%s%x", prefix,
- (temp >> 16) & 0xffff);
+ snprintf(sptr, sizeof(temps) - (size_t)(sptr - temps), "%s%x", prefix, (temp >> 16) & 0xffff);
prefix = ":";
sptr += strlen(sptr);
if (temp || i == 3 || addr->ipv6.sin6_addr.s6_addr32[i + 1])
{
- snprintf(sptr, sizeof(temps) - (sptr - temps), "%s%x", prefix, temp);
+ snprintf(sptr, sizeof(temps) - (size_t)(sptr - temps), "%s%x", prefix, temp);
sptr += strlen(sptr);
}
}
if (i < 4)
{
- snprintf(sptr, sizeof(temps) - (sptr - temps), "%s:", prefix);
+ snprintf(sptr, sizeof(temps) - (size_t)(sptr - temps), "%s:", prefix);
prefix = ":";
sptr += strlen(sptr);
if ((temp & 0xffff0000) ||
(i > 0 && addr->ipv6.sin6_addr.s6_addr32[i - 1]))
{
- snprintf(sptr, sizeof(temps) - (sptr - temps), "%s%x", prefix,
- (temp >> 16) & 0xffff);
+ snprintf(sptr, sizeof(temps) - (size_t)(sptr - temps), "%s%x", prefix, (temp >> 16) & 0xffff);
sptr += strlen(sptr);
}
- snprintf(sptr, sizeof(temps) - (sptr - temps), "%s%x", prefix,
- temp & 0xffff);
+ snprintf(sptr, sizeof(temps) - (size_t)(sptr - temps), "%s%x", prefix, temp & 0xffff);
sptr += strlen(sptr);
}
}
* Empty at end...
*/
- strlcpy(sptr, "::", sizeof(temps) - (sptr - temps));
+ strlcpy(sptr, "::", sizeof(temps) - (size_t)(sptr - temps));
}
}
# endif /* HAVE_GETNAMEINFO */
* Add "[v1." and "]" around IPv6 address to convert to URI form.
*/
- snprintf(s, slen, "[v1.%s]", temps);
+ snprintf(s, (size_t)slen, "[v1.%s]", temps);
}
#endif /* AF_INET6 */
else
- strlcpy(s, "UNKNOWN", slen);
+ strlcpy(s, "UNKNOWN", (size_t)slen);
DEBUG_printf(("1httpAddrString: returning \"%s\"...", s));
}
+/*
+ * 'httpGetAddress()' - Get the address of the connected peer of a connection.
+ *
+ * For connections created with @link httpConnect2@, the address is for the
+ * server. For connections created with @link httpAccept@, the address is for
+ * the client.
+ *
+ * Returns @code NULL@ if the socket is currently unconnected.
+ *
+ * @since CUPS 2.0/OS 10.10@
+ */
+
+http_addr_t * /* O - Connected address or @code NULL@ */
+httpGetAddress(http_t *http) /* I - HTTP connection */
+{
+ if (http)
+ return (http->hostaddr);
+ else
+ return (NULL);
+}
+
+
/*
* 'httpGetHostByName()' - Lookup a hostname or IPv4 address, and return
* address records for the specified name.
*
- * @deprecated@
+ * @deprecated@ @exclude all@
*/
struct hostent * /* O - Host entry */
cg->hostent.h_name = (char *)name;
cg->hostent.h_aliases = NULL;
cg->hostent.h_addrtype = AF_LOCAL;
- cg->hostent.h_length = strlen(name) + 1;
+ cg->hostent.h_length = (int)strlen(name) + 1;
cg->hostent.h_addr_list = cg->ip_ptrs;
cg->ip_ptrs[0] = (char *)name;
cg->ip_ptrs[1] = NULL;
if (ip[0] > 255 || ip[1] > 255 || ip[2] > 255 || ip[3] > 255)
return (NULL); /* Invalid byte ranges! */
- cg->ip_addr = htonl(((((((ip[0] << 8) | ip[1]) << 8) | ip[2]) << 8) |
- ip[3]));
+ cg->ip_addr = htonl((((((((unsigned)ip[0] << 8) | (unsigned)ip[1]) << 8) |
+ (unsigned)ip[2]) << 8) |
+ (unsigned)ip[3]));
/*
* Fill in the host entry and return it...
* 'httpGetHostname()' - Get the FQDN for the connection or local system.
*
* When "http" points to a connected socket, return the hostname or
- * address that was used in the call to httpConnect() or httpConnectEncrypt().
+ * address that was used in the call to httpConnect() or httpConnectEncrypt(),
+ * or the address of the client for the connection from httpAcceptConnection().
* Otherwise, return the FQDN for the local system using both gethostname()
* and gethostbyname() to get the local hostname with domain.
*
- * @since CUPS 1.2/OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
const char * /* O - FQDN for connection or system */
char *s, /* I - String buffer for name */
int slen) /* I - Size of buffer */
{
- if (!s || slen <= 1)
- return (NULL);
-
if (http)
{
- if (http->hostname[0] == '/')
- strlcpy(s, "localhost", slen);
+ if (!s || slen <= 1)
+ {
+ if (http->hostname[0] == '/')
+ return ("localhost");
+ else
+ return (http->hostname);
+ }
+ else if (http->hostname[0] == '/')
+ strlcpy(s, "localhost", (size_t)slen);
else
- strlcpy(s, http->hostname, slen);
+ strlcpy(s, http->hostname, (size_t)slen);
}
else
{
* Get the hostname...
*/
- if (gethostname(s, slen) < 0)
- strlcpy(s, "localhost", slen);
+ if (!s || slen <= 1)
+ return (NULL);
+
+ if (gethostname(s, (size_t)slen) < 0)
+ strlcpy(s, "localhost", (size_t)slen);
if (!strchr(s, '.'))
{
* Append ".local." to the hostname we get...
*/
- snprintf(s, slen, "%s.local.", localStr);
+ snprintf(s, (size_t)slen, "%s.local.", localStr);
}
if (local)
* Use the resolved hostname...
*/
- strlcpy(s, host->h_name, slen);
+ strlcpy(s, host->h_name, (size_t)slen);
}
#endif /* HAVE_SCDYNAMICSTORECOPYCOMPUTERNAME */
}
+
+ /*
+ * Make sure .local hostnames end with a period...
+ */
+
+ if (strlen(s) > 6 && !strcmp(s + strlen(s) - 6, ".local"))
+ strlcat(s, ".", (size_t)slen);
+ }
+
+ /*
+ * Convert the hostname to lowercase as needed...
+ */
+
+ if (s[0] != '/')
+ {
+ char *ptr; /* Pointer into string */
+
+ for (ptr = s; *ptr; ptr ++)
+ *ptr = (char)_cups_tolower((int)*ptr);
}
/*
/*
- * End of "$Id: http-addr.c 7910 2008-09-06 00:25:17Z mike $".
+ * 'httpResolveHostname()' - Resolve the hostname of the HTTP connection
+ * address.
+ *
+ * @since CUPS 2.0/OS 10.10@
*/
+
+const char * /* O - Resolved hostname or @code NULL@ */
+httpResolveHostname(http_t *http, /* I - HTTP connection */
+ char *buffer, /* I - Hostname buffer */
+ size_t bufsize) /* I - Size of buffer */
+{
+ if (!http)
+ return (NULL);
+
+ if (isdigit(http->hostname[0] & 255) || http->hostname[0] == '[')
+ {
+ char temp[1024]; /* Temporary string */
+
+ if (httpAddrLookup(http->hostaddr, temp, sizeof(temp)))
+ strlcpy(http->hostname, temp, sizeof(http->hostname));
+ else
+ return (NULL);
+ }
+
+ if (buffer)
+ {
+ if (http->hostname[0] == '/')
+ strlcpy(buffer, "localhost", bufsize);
+ else
+ strlcpy(buffer, http->hostname, bufsize);
+
+ return (buffer);
+ }
+ else if (http->hostname[0] == '/')
+ return ("localhost");
+ else
+ return (http->hostname);
+}
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