[mirror_edk2.git] / StdLib / BsdSocketLib / gethostname.c

/*\r
 * Copyright (c) 1999, 2000\r
 * Intel Corporation.\r
 * All rights reserved.\r
 * \r
 * Redistribution and use in source and binary forms, with or without modification,\r
 * are permitted provided that the following conditions are met:\r
 * \r
 * 1. Redistributions of source code must retain the above copyright notice,\r
 *    this list of conditions and the following disclaimer.\r
 * \r
 * 2. Redistributions in binary form must reproduce the above copyright notice,\r
 *    this list of conditions and the following disclaimer in the documentation\r
 *    and/or other materials provided with the distribution.\r
 * \r
 * 3. All advertising materials mentioning features or use of this software must\r
 *    display the following acknowledgement:\r
 * \r
 *    This product includes software developed by Intel Corporation and its\r
 *    contributors.\r
 * \r
 * 4. Neither the name of Intel Corporation or its contributors may be used to\r
 *    endorse or promote products derived from this software without specific\r
 *    prior written permission.\r
 * \r
 * THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION AND CONTRIBUTORS ``AS IS'' AND\r
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\r
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\r
 * DISCLAIMED.  IN NO EVENT SHALL INTEL CORPORATION OR CONTRIBUTORS BE LIABLE FOR\r
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\r
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\r
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON\r
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\r
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
 * \r
 */\r
\r
#include <stdlib.h>\r
#include <string.h>\r
#include <unistd.h>\r
\r
/*++\r
\r
Module Name:\r
\r
    gethostname.c\r
    \r
Abstract:\r
\r
    Map FreeBSD gethostname call to EFI Interface\r
\r
\r
Revision History\r
\r
--*/\r
\r
int\r
gethostname(\r
	char	*name,\r
	size_t		namelen\r
	)\r
/*++\r
\r
Routine Description:\r
\r
    Get the hostname for this system.\r
\r
Arguments:\r
    \r
	name		- Pointer to storage for hostname.\r
	namelen		- Length of name\r
\r
Returns:\r
\r
	0 on success, -1 if not set\r
\r
--*/\r
{\r
	char	*pHost;\r
\r
	pHost = getenv ("HOSTNAME");\r
\r
	if ( pHost == NULL ) {\r
		*name = 0;\r
	} else {\r
		strncpy (name, pHost, namelen);\r
		name[namelen-1] = 0;\r
	}\r
\r
	return (0);\r
}\r
Commit	Line	Data
d7ce7006	1	/*\r
	2	* Copyright (c) 1999, 2000\r
	3	* Intel Corporation.\r
	4	* All rights reserved.\r
	5	* \r
	6	* Redistribution and use in source and binary forms, with or without modification,\r
	7	* are permitted provided that the following conditions are met:\r
	8	* \r
	9	* 1. Redistributions of source code must retain the above copyright notice,\r
	10	* this list of conditions and the following disclaimer.\r
	11	* \r
	12	* 2. Redistributions in binary form must reproduce the above copyright notice,\r
	13	* this list of conditions and the following disclaimer in the documentation\r
	14	* and/or other materials provided with the distribution.\r
	15	* \r
	16	* 3. All advertising materials mentioning features or use of this software must\r
	17	* display the following acknowledgement:\r
	18	* \r
	19	* This product includes software developed by Intel Corporation and its\r
	20	* contributors.\r
	21	* \r
	22	* 4. Neither the name of Intel Corporation or its contributors may be used to\r
	23	* endorse or promote products derived from this software without specific\r
	24	* prior written permission.\r
	25	* \r
	26	* THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION AND CONTRIBUTORS ``AS IS'' AND\r
	27	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\r
	28	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\r
	29	* DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR CONTRIBUTORS BE LIABLE FOR\r
	30	* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\r
	31	* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\r
	32	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON\r
	33	* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r
	34	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\r
	35	* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
	36	* \r
	37	*/\r
	38	\r
	39	#include <stdlib.h>\r
	40	#include <string.h>\r
	41	#include <unistd.h>\r
	42	\r
	43	/*++\r
	44	\r
	45	Module Name:\r
	46	\r
	47	gethostname.c\r
	48	\r
	49	Abstract:\r
	50	\r
	51	Map FreeBSD gethostname call to EFI Interface\r
	52	\r
	53	\r
	54	Revision History\r
	55	\r
	56	--*/\r
	57	\r
	58	int\r
	59	gethostname(\r
	60	char *name,\r
	61	size_t namelen\r
	62	)\r
	63	/*++\r
	64	\r
65	Routine Description:\r
66	\r
67	Get the hostname for this system.\r
68	\r
69	Arguments:\r
70	\r
71	name - Pointer to storage for hostname.\r
72	namelen - Length of name\r
73	\r
74	Returns:\r
75	\r
76	0 on success, -1 if not set\r
77	\r
78	--*/\r
79	{\r
80	char *pHost;\r
81	\r
82	pHost = getenv ("HOSTNAME");\r
83	\r
84	if ( pHost == NULL ) {\r
85	*name = 0;\r
86	} else {\r
87	strncpy (name, pHost, namelen);\r
88	name[namelen-1] = 0;\r
89	}\r
90	\r
91	return (0);\r
92	}\r