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1 | // Copyright 1998, Ben Goetter. All rights reserved. | |
2 | ||
3 | /* | |
4 | patch holes in winsock | |
5 | ||
6 | WCE 2.0 lacks many of the 'database' winsock routines. | |
7 | Stub just enough them for ss.dll. | |
8 | ||
9 | getprotobynumber | |
10 | getservbyport | |
11 | getservbyname | |
12 | ||
13 | */ | |
14 | ||
15 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) | |
16 | #pragma implementation "net.h" | |
17 | #endif | |
18 | ||
19 | // For compilers that support precompilation, includes "wx.h". | |
20 | #include "wx/wxprec.h" | |
21 | ||
22 | #ifdef __BORLANDC__ | |
23 | #pragma hdrstop | |
24 | #endif | |
25 | ||
26 | #include "wx/msw/wrapwin.h" | |
27 | #include <tchar.h> | |
28 | #include <winsock.h> | |
29 | #include <string.h> | |
30 | #include "wx/msw/wince/net.h" | |
31 | ||
32 | ||
33 | #define CCH_MAX_PROTO 4 | |
34 | ||
35 | static struct protoent RgProtoEnt[] = | |
36 | { | |
37 | { "tcp", {NULL}, 6 }, | |
38 | { "udp", {NULL}, 17 }, | |
39 | { "icmp", {NULL}, 1 }, | |
40 | { "ip", {NULL}, 0 }, | |
41 | { NULL, {NULL}, 0 } | |
42 | }; | |
43 | ||
44 | ||
45 | #define CCH_MAX_SERV 8 | |
46 | ||
47 | // Ordered by most likely to be requested. | |
48 | // Assumes that a service available on different protocols | |
49 | // will use the same port number on each protocol. | |
50 | // Should that be no longer the case, | |
51 | // remove the fFoundOnce code from getservbyXxx fcns. | |
52 | ||
53 | // This table keeps port numbers in host byte order. | |
54 | ||
55 | static struct servent RgServEnt[] = | |
56 | { | |
57 | { "ftp", {NULL}, 21, "tcp" }, | |
58 | { "ftp-data", {NULL}, 20, "tcp" }, | |
59 | { "telnet", {NULL}, 23, "tcp" }, | |
60 | { "smtp", {NULL}, 25, "tcp" }, | |
61 | { "http", {NULL}, 80, "tcp" }, | |
62 | { "http", {NULL}, 80, "udp" }, | |
63 | { "pop", {NULL}, 109, "tcp" }, | |
64 | { "pop2", {NULL}, 109, "tcp" }, | |
65 | { "pop3", {NULL}, 110, "tcp" }, | |
66 | { "nntp", {NULL}, 119, "tcp" }, | |
67 | { "finger", {NULL}, 79, "tcp" }, | |
68 | /* include most of the simple TCP services for testing */ | |
69 | { "echo", {NULL}, 7, "tcp" }, | |
70 | { "echo", {NULL}, 7, "udp" }, | |
71 | { "discard", {NULL}, 9, "tcp" }, | |
72 | { "discard", {NULL}, 9, "udp" }, | |
73 | { "chargen", {NULL}, 19, "tcp" }, | |
74 | { "chargen", {NULL}, 19, "udp" }, | |
75 | { "systat", {NULL}, 11, "tcp" }, | |
76 | { "systat", {NULL}, 11, "udp" }, | |
77 | { "daytime", {NULL}, 13, "tcp" }, | |
78 | { "daytime", {NULL}, 13, "udp" }, | |
79 | { "netstat", {NULL}, 15, "tcp" }, | |
80 | { "qotd", {NULL}, 17, "tcp" }, | |
81 | { "qotd", {NULL}, 17, "udp" }, | |
82 | { NULL, {NULL}, 0, NULL } | |
83 | }; | |
84 | ||
85 | // Since table kept in host byte order, | |
86 | // return this element to callers | |
87 | ||
88 | static struct servent ServEntReturn = {0}; | |
89 | ||
90 | // Because CE doesn't have _stricmp - that's why. | |
91 | ||
92 | static void strcpyLC(char* szDst, const char* szSrc, int cch) | |
93 | { | |
94 | int i; | |
95 | char ch; | |
96 | for (i = 0, ch = szSrc[i]; i < cch && ch != 0; ch = szSrc[++i]) | |
97 | { | |
98 | szDst[i] = (ch >= 'A' && ch <= 'Z') ? (ch + ('a'-'A')) : ch; | |
99 | } szDst[i] = 0; | |
100 | } | |
101 | ||
102 | ||
103 | struct servent * WINSOCKAPI getservbyport(int port, const char * proto) | |
104 | { | |
105 | ||
106 | port = ntohs((unsigned short)port); // arrives in network byte order | |
107 | struct servent *ps = &RgServEnt[0]; | |
108 | BOOL fFoundOnce = FALSE; // flag to short-circuit search through rest of db | |
109 | ||
110 | // Make a lowercase version for comparison | |
111 | // truncate to 1 char longer than any value in table | |
112 | char szProtoLC[CCH_MAX_PROTO+2]; | |
113 | if (NULL != proto) | |
114 | strcpyLC(szProtoLC, proto, CCH_MAX_PROTO+1); | |
115 | ||
116 | while (NULL != ps->s_name) | |
117 | { | |
118 | if (port == ps->s_port) | |
119 | { | |
120 | fFoundOnce = TRUE; | |
121 | if (NULL == proto || !strcmp(szProtoLC, ps->s_proto)) | |
122 | { | |
123 | ServEntReturn = *ps; | |
124 | ServEntReturn.s_port = htons(ps->s_port); | |
125 | return &ServEntReturn; | |
126 | } | |
127 | } | |
128 | else if (fFoundOnce) | |
129 | break; | |
130 | ++ps; | |
131 | } return NULL; | |
132 | } | |
133 | ||
134 | ||
135 | struct servent * WINSOCKAPI getservbyname(const char * name, | |
136 | const char * proto) | |
137 | { | |
138 | struct servent *ps = &RgServEnt[0]; | |
139 | BOOL fFoundOnce = FALSE; // flag to short-circuit search through rest of db | |
140 | ||
141 | // Make lowercase versions for comparisons | |
142 | // truncate to 1 char longer than any value in table | |
143 | char szNameLC[CCH_MAX_SERV+2]; | |
144 | strcpyLC(szNameLC, name, CCH_MAX_SERV+1); | |
145 | char szProtoLC[CCH_MAX_PROTO+2]; | |
146 | if (NULL != proto) | |
147 | strcpyLC(szProtoLC, proto, CCH_MAX_PROTO+1); | |
148 | ||
149 | while (NULL != ps->s_name) | |
150 | { | |
151 | if (!strcmp(szNameLC, ps->s_name)) | |
152 | { | |
153 | fFoundOnce = TRUE; | |
154 | if (NULL == proto || !strcmp(szProtoLC, ps->s_proto)) | |
155 | { | |
156 | ServEntReturn = *ps; | |
157 | ServEntReturn.s_port = htons(ps->s_port); | |
158 | return &ServEntReturn; | |
159 | } | |
160 | } | |
161 | else if (fFoundOnce) | |
162 | break; | |
163 | ++ps; | |
164 | } return NULL; | |
165 | } | |
166 | ||
167 | ||
168 | struct protoent * WINSOCKAPI getprotobynumber(int proto) | |
169 | { | |
170 | struct protoent *pr = &RgProtoEnt[0]; | |
171 | while (NULL != pr->p_name) | |
172 | { | |
173 | if (proto == pr->p_proto) | |
174 | return pr; | |
175 | ++pr; | |
176 | } return NULL; | |
177 | } | |
178 |