146 lines
3.9 KiB
C
146 lines
3.9 KiB
C
/****************************************************************************
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* libs/libc/netdb/lib_protor.c
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*
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* Copyright © 2005-2020 Rich Felker, et al.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <errno.h>
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#include <netdb.h>
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#include <string.h>
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static const unsigned char g_protos[] =
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{
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"\000ip\0"
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"\001icmp\0"
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"\002igmp\0"
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"\003ggp\0"
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"\004ipencap\0"
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"\005st\0"
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"\006tcp\0"
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"\010egp\0"
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"\014pup\0"
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"\021udp\0"
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"\024hmp\0"
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"\026xns-idp\0"
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"\033rdp\0"
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"\035iso-tp4\0"
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"\044xtp\0"
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"\045ddp\0"
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"\046idpr-cmtp\0"
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"\051ipv6\0"
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"\053ipv6-route\0"
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"\054ipv6-frag\0"
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"\055idrp\0"
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"\056rsvp\0"
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"\057gre\0"
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"\062esp\0"
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"\063ah\0"
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"\071skip\0"
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"\072ipv6-icmp\0"
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"\073ipv6-nonxt\0"
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"\074ipv6-opts\0"
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"\111rspf\0"
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"\121vmtp\0"
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"\131ospf\0"
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"\136ipip\0"
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"\142encap\0"
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"\147pim\0"
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"\377raw"
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};
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static const char *g_aliases;
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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void setprotoent_r(int stayopen, FAR struct protoent *result_buf)
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{
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result_buf->idx = 0;
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}
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void endprotoent_r(FAR struct protoent *result_buf)
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{
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result_buf->idx = 0;
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}
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int getprotoent_r(FAR struct protoent *result_buf, FAR char *buf,
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size_t buflen, FAR struct protoent **result)
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{
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int idx = result_buf->idx;
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if (idx >= sizeof(g_protos))
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{
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*result = NULL;
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return ENOENT;
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}
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result_buf->p_proto = g_protos[idx];
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result_buf->p_name = (char *)&g_protos[idx + 1];
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result_buf->p_aliases = (char **)&g_aliases;
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idx += strlen(result_buf->p_name) + 2;
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result_buf->idx = idx;
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*result = result_buf;
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return OK;
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}
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int getprotobyname_r(FAR const char *name,
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FAR struct protoent *result_buf, FAR char *buf,
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size_t buflen, FAR struct protoent **result)
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{
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int ret;
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endprotoent_r(result_buf);
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do
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{
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ret = getprotoent_r(result_buf, buf, buflen, result);
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}
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while (ret == OK && strcmp(name, result_buf->p_name));
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return ret;
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}
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int getprotobynumber_r(int proto,
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FAR struct protoent *result_buf, FAR char *buf,
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size_t buflen, FAR struct protoent **result)
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{
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int ret;
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endprotoent_r(result_buf);
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do
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{
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ret = getprotoent_r(result_buf, buf, buflen, result);
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}
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while (ret == OK && result_buf->p_proto != proto);
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return ret;
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}
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