1 | |
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2 | /* |
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3 | * static char *rcsid_sockets_c = |
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4 | * "$Id: lowlevel.C,v 1.5 2006/09/10 13:43:33 root Exp $"; |
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5 | */ |
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6 | |
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7 | /* |
1 | /* |
8 | CrossFire, A Multiplayer game for X-windows |
2 | CrossFire, A Multiplayer game for X-windows |
9 | |
3 | |
10 | Copyright (C) 1992 Frank Tore Johansen |
4 | Copyright (C) 1992 Frank Tore Johansen |
11 | |
5 | |
… | |
… | |
41 | using namespace std; |
35 | using namespace std; |
42 | |
36 | |
43 | #include <global.h> |
37 | #include <global.h> |
44 | #include <newclient.h> |
38 | #include <newclient.h> |
45 | #include <sproto.h> |
39 | #include <sproto.h> |
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40 | #include <cstdarg> |
46 | |
41 | |
47 | #ifdef __linux__ |
42 | #ifdef __linux__ |
48 | # include <sys/types.h> |
43 | # include <sys/types.h> |
49 | # include <sys/socket.h> |
44 | # include <sys/socket.h> |
50 | # include <netinet/in.h> |
45 | # include <netinet/in.h> |
… | |
… | |
56 | // easily die in 20 seconds... |
51 | // easily die in 20 seconds... |
57 | #define SOCKET_TIMEOUT1 10 |
52 | #define SOCKET_TIMEOUT1 10 |
58 | #define SOCKET_TIMEOUT2 20 |
53 | #define SOCKET_TIMEOUT2 20 |
59 | |
54 | |
60 | void |
55 | void |
61 | Socket_Flush (NewSocket * ns) |
56 | Socket_Flush (client_socket * ns) |
62 | { |
57 | { |
63 | #ifdef __linux__ |
58 | #ifdef __linux__ |
64 | // check time of last ack, and, if too old, kill connection |
59 | // check time of last ack, and, if too old, kill connection |
65 | struct tcp_info tcpi; |
60 | struct tcp_info tcpi; |
66 | socklen_t len = sizeof (tcpi); |
61 | socklen_t len = sizeof (tcpi); |
… | |
… | |
78 | } |
73 | } |
79 | } |
74 | } |
80 | |
75 | |
81 | int val; |
76 | int val; |
82 | |
77 | |
83 | val = 0; |
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84 | setsockopt (ns->fd, IPPROTO_TCP, TCP_CORK, &val, sizeof (val)); |
78 | val = 0; setsockopt (ns->fd, IPPROTO_TCP, TCP_CORK, &val, sizeof (val)); |
85 | val = 1; |
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86 | setsockopt (ns->fd, IPPROTO_TCP, TCP_CORK, &val, sizeof (val)); |
79 | val = 1; setsockopt (ns->fd, IPPROTO_TCP, TCP_CORK, &val, sizeof (val)); |
87 | #endif |
80 | #endif |
88 | } |
81 | } |
89 | |
82 | |
90 | /*********************************************************************** |
83 | /*********************************************************************** |
91 | * |
84 | * |
92 | * SockList functions/utilities |
85 | * packet functions/utilities |
93 | * |
86 | * |
94 | **********************************************************************/ |
87 | **********************************************************************/ |
95 | |
88 | |
96 | void |
89 | packet &packet::operator <<(const data &v) |
97 | SockList_Init (SockList * sl) |
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98 | { |
90 | { |
99 | sl->len = 0; |
91 | if (room () < v.len) |
100 | sl->buf = NULL; |
92 | reset (); |
101 | } |
93 | else |
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94 | { |
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95 | if (v.len) |
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96 | { |
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97 | memcpy (cur, v.ptr, v.len); |
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98 | cur += v.len; |
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99 | } |
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100 | } |
102 | |
101 | |
103 | void |
102 | return *this; |
104 | SockList_AddInt (SockList * sl, uint32 data) |
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105 | { |
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106 | sl->buf[sl->len++] = (data >> 24) & 0xff; |
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107 | sl->buf[sl->len++] = (data >> 16) & 0xff; |
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108 | sl->buf[sl->len++] = (data >> 8) & 0xff; |
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109 | sl->buf[sl->len++] = data & 0xff; |
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110 | } |
103 | } |
111 | |
104 | |
112 | void |
105 | packet &packet::operator <<(const data8 &v) |
113 | SockList_AddInt64 (SockList * sl, uint64 data) |
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114 | { |
106 | { |
115 | sl->buf[sl->len++] = (char) ((data >> 56) & 0xff); |
107 | unsigned int len = min (v.len, 0x00FF); |
116 | sl->buf[sl->len++] = (char) ((data >> 48) & 0xff); |
108 | return *this << uint8 (len) << data (v.ptr, len); |
117 | sl->buf[sl->len++] = (char) ((data >> 40) & 0xff); |
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118 | sl->buf[sl->len++] = (char) ((data >> 32) & 0xff); |
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119 | |
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120 | sl->buf[sl->len++] = (char) ((data >> 24) & 0xff); |
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121 | sl->buf[sl->len++] = (char) ((data >> 16) & 0xff); |
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122 | sl->buf[sl->len++] = (char) ((data >> 8) & 0xff); |
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123 | sl->buf[sl->len++] = (char) (data & 0xff); |
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124 | } |
109 | } |
125 | |
110 | |
126 | /* Basically does the reverse of SockList_AddInt, but on |
111 | packet &packet::operator <<(const data16 &v) |
127 | * strings instead. Same for the GetShort, but for 16 bits. |
112 | { |
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113 | unsigned int len = min (v.len, 0xFFFF); |
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114 | return *this << uint16 (len) << data (v.ptr, len); |
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115 | } |
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116 | |
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117 | packet &packet::operator <<(const char *v) |
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118 | { |
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119 | return *this << data (v, strlen (v ? v : 0)); |
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120 | } |
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121 | |
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122 | void |
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123 | packet::printf (const char *format, ...) |
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124 | { |
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125 | int size = room (); |
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126 | |
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127 | va_list ap; |
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128 | va_start (ap, format); |
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129 | int len = vsnprintf ((char *)cur, size, format, ap); |
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130 | va_end (ap); |
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131 | |
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132 | if (len >= size) |
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133 | return reset (); |
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134 | |
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135 | cur += len; |
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136 | } |
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137 | |
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138 | /****************************************************************************** |
128 | */ |
139 | * |
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140 | * Start of read routines. |
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141 | * |
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142 | ******************************************************************************/ |
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143 | |
129 | int |
144 | int |
130 | GetInt_String (unsigned char *data) |
145 | client_socket::read_packet () |
131 | { |
146 | { |
132 | return ((data[0] << 24) + (data[1] << 16) + (data[2] << 8) + data[3]); |
147 | for (;;) |
133 | } |
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134 | |
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135 | short |
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136 | GetShort_String (unsigned char *data) |
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137 | { |
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138 | return ((data[0] << 8) + data[1]); |
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139 | } |
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140 | |
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141 | /****************************************************************************** |
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142 | * |
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143 | * Start of read routines. |
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144 | * |
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145 | ******************************************************************************/ |
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146 | |
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147 | /** |
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148 | * This reads from fd and puts the data in sl. We return true if we think |
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149 | * we have a full packet, 0 if we have a partial packet. The only processing |
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150 | * we do is remove the intial size value. len (As passed) is the size of the |
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151 | * buffer allocated in the socklist. We make the assumption the buffer is |
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152 | * at least 2 bytes long. |
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153 | */ |
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154 | |
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155 | int |
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156 | SockList_ReadPacket (int fd, SockList * sl, int len) |
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157 | { |
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158 | int stat, toread; |
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159 | |
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160 | /* Sanity check - shouldn't happen */ |
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161 | if (sl->len < 0) |
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162 | { |
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163 | abort (); |
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164 | } |
148 | { |
165 | /* We already have a partial packet */ |
149 | if (inbuf_len >= 2) |
166 | if (sl->len < 2) |
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167 | { |
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168 | #ifdef WIN32 /* ***WIN32 SockList_ReadPacket: change read() to recv() */ |
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169 | |
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170 | stat = recv (fd, sl->buf + sl->len, 2 - sl->len, 0); |
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171 | |
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172 | #else |
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173 | do |
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174 | { |
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175 | stat = read (fd, sl->buf + sl->len, 2 - sl->len); |
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176 | } |
150 | { |
177 | while ((stat == -1) && (errno == EINTR)); |
151 | unsigned int pkt_len = (inbuf [0] << 8) | inbuf [1]; |
178 | #endif |
152 | |
179 | if (stat < 0) |
153 | if (inbuf_len >= 2 + pkt_len) |
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154 | return pkt_len + 2; |
180 | { |
155 | } |
181 | /* In non blocking mode, EAGAIN is set when there is no |
156 | |
182 | * data available. |
157 | int amount = sizeof (inbuf) - inbuf_len; |
183 | */ |
158 | |
184 | #ifdef WIN32 /* ***WIN32 SockList_ReadPacket: error handling for win32 */ |
159 | if (amount <= 0) |
185 | if ((stat == -1) && WSAGetLastError () != WSAEWOULDBLOCK) |
160 | { |
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161 | LOG (llevError, "packet too large");//TODO |
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162 | return -1; |
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163 | } |
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164 | |
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165 | amount = read (fd, inbuf + inbuf_len, amount); |
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166 | |
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167 | if (!amount) |
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168 | { |
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169 | status = Ns_Dead; |
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170 | return -1; |
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171 | } |
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172 | else if (amount < 0) |
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173 | { |
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174 | if (errno != EAGAIN && errno != EINTR) |
186 | { |
175 | { |
187 | if (WSAGetLastError () == WSAECONNRESET) |
176 | LOG (llevError, "read error: %s", strerror (errno)); |
188 | LOG (llevDebug, "Connection closed by client\n"); |
177 | return -1; |
189 | else |
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190 | { |
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191 | LOG (llevDebug, "ReadPacket got error %d, returning 0\n", WSAGetLastError ()); |
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192 | } |
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193 | return -1; /* kick this user! */ |
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194 | } |
178 | } |
195 | #else |
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196 | if (errno != EAGAIN && errno != EWOULDBLOCK) |
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197 | { |
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198 | LOG (llevDebug, "ReadPacket got error %s, returning 0\n", strerror (errno)); |
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199 | } |
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200 | #endif |
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201 | return 0; /*Error */ |
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202 | } |
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203 | if (stat == 0) |
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204 | return -1; |
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205 | sl->len += stat; |
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206 | #ifdef CS_LOGSTATS |
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207 | cst_tot.ibytes += stat; |
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208 | cst_lst.ibytes += stat; |
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209 | #endif |
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210 | if (stat < 2) |
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211 | return 0; /* Still don't have a full packet */ |
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212 | } |
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213 | /* Figure out how much more data we need to read. Add 2 from the |
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214 | * end of this - size header information is not included. |
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215 | */ |
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216 | toread = 2 + (sl->buf[0] << 8) + sl->buf[1] - sl->len; |
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217 | if ((toread + sl->len) >= len) |
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218 | { |
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219 | LOG (llevError, "SockList_ReadPacket: Want to read more bytes than will fit in buffer (%d>=%d).\n", toread + sl->len, len); |
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220 | /* Quick hack in case for 'oldsocketmode' input. If we are |
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221 | * closing the socket anyways, then reading this extra 100 bytes |
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222 | * shouldn't hurt. |
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223 | */ |
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224 | #ifdef WIN32 /* ***win32 SockList_ReadPacket: change read() to recv() */ |
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225 | recv (fd, sl->buf + 2, 100, 0); |
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226 | #else |
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227 | read (fd, sl->buf + 2, 100); |
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228 | #endif /* end win32 */ |
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229 | |
179 | |
230 | /* return error so the socket is closed */ |
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231 | return -1; |
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232 | } |
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233 | do |
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234 | { |
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235 | #ifdef WIN32 /* ***win32 SockList_ReadPacket: change read() to recv() */ |
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236 | stat = recv (fd, sl->buf + sl->len, toread, 0); |
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237 | #else |
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238 | do |
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239 | { |
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240 | stat = read (fd, sl->buf + sl->len, toread); |
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241 | } |
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242 | while ((stat < 0) && (errno == EINTR)); |
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243 | #endif |
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244 | if (stat < 0) |
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245 | { |
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246 | |
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247 | #ifdef WIN32 /* ***win32 SockList_ReadPacket: change error handling for win32 */ |
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248 | if ((stat == -1) && WSAGetLastError () != WSAEWOULDBLOCK) |
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249 | { |
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250 | if (WSAGetLastError () == WSAECONNRESET) |
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251 | LOG (llevDebug, "Connection closed by client\n"); |
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252 | else |
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253 | { |
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254 | LOG (llevDebug, "ReadPacket got error %d, returning 0\n", WSAGetLastError ()); |
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255 | } |
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256 | return -1; /* kick this user! */ |
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257 | } |
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258 | #else |
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259 | if (errno != EAGAIN && errno != EWOULDBLOCK) |
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260 | { |
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261 | LOG (llevDebug, "ReadPacket got error %s, returning 0\n", strerror (errno)); |
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262 | } |
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263 | #endif |
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264 | return 0; /*Error */ |
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265 | } |
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266 | if (stat == 0) |
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267 | return -1; |
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268 | sl->len += stat; |
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269 | #ifdef CS_LOGSTATS |
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270 | cst_tot.ibytes += stat; |
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271 | cst_lst.ibytes += stat; |
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272 | #endif |
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273 | toread -= stat; |
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274 | if (toread == 0) |
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275 | return 1; |
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276 | if (toread < 0) |
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277 | { |
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278 | LOG (llevError, "SockList_ReadPacket: Read more bytes than desired.\n"); |
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279 | return 1; |
180 | return 0; |
280 | } |
181 | } |
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182 | |
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183 | inbuf_len += amount; |
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184 | |
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185 | cst_tot.ibytes += amount; |
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186 | cst_lst.ibytes += amount; |
281 | } |
187 | } |
282 | while (toread > 0); |
188 | } |
283 | return 0; |
189 | |
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190 | void |
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191 | client_socket::skip_packet (int len) |
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192 | { |
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193 | inbuf_len -= len; |
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194 | memmove (inbuf, inbuf + len, inbuf_len); |
284 | } |
195 | } |
285 | |
196 | |
286 | /******************************************************************************* |
197 | /******************************************************************************* |
287 | * |
198 | * |
288 | * Start of write related routines. |
199 | * Start of write related routines. |
… | |
… | |
295 | * ns is the socket we are adding the data to, buf is the start of the |
206 | * ns is the socket we are adding the data to, buf is the start of the |
296 | * data, and len is the number of bytes to add. |
207 | * data, and len is the number of bytes to add. |
297 | */ |
208 | */ |
298 | |
209 | |
299 | static void |
210 | static void |
300 | add_to_buffer (NewSocket * ns, char *buf, int len) |
211 | add_to_buffer (client_socket *ns, char *buf, int len) |
301 | { |
212 | { |
302 | int avail, end; |
213 | int avail, end; |
303 | |
214 | |
304 | if ((len + ns->outputbuffer.len) > SOCKETBUFSIZE) |
215 | if ((len + ns->outputbuffer.len) > SOCKETBUFSIZE) |
305 | { |
216 | { |
… | |
… | |
314 | |
225 | |
315 | end = ns->outputbuffer.start + ns->outputbuffer.len; |
226 | end = ns->outputbuffer.start + ns->outputbuffer.len; |
316 | /* The buffer is already in a wrapped state, so adjust end */ |
227 | /* The buffer is already in a wrapped state, so adjust end */ |
317 | if (end >= SOCKETBUFSIZE) |
228 | if (end >= SOCKETBUFSIZE) |
318 | end -= SOCKETBUFSIZE; |
229 | end -= SOCKETBUFSIZE; |
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230 | |
319 | avail = SOCKETBUFSIZE - end; |
231 | avail = SOCKETBUFSIZE - end; |
320 | |
232 | |
321 | /* We can all fit it behind the current data without wrapping */ |
233 | /* We can all fit it behind the current data without wrapping */ |
322 | if (avail >= len) |
234 | if (avail >= len) |
323 | { |
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324 | memcpy (ns->outputbuffer.data + end, buf, len); |
235 | memcpy (ns->outputbuffer.data + end, buf, len); |
325 | } |
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326 | else |
236 | else |
327 | { |
237 | { |
328 | memcpy (ns->outputbuffer.data + end, buf, avail); |
238 | memcpy (ns->outputbuffer.data + end, buf, avail); |
329 | memcpy (ns->outputbuffer.data, buf + avail, len - avail); |
239 | memcpy (ns->outputbuffer.data, buf + avail, len - avail); |
330 | } |
240 | } |
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241 | |
331 | ns->outputbuffer.len += len; |
242 | ns->outputbuffer.len += len; |
332 | #if 0 |
243 | #if 0 |
333 | LOG (llevDebug, "Added %d to output buffer, total length now %d, start=%d\n", len, ns->outputbuffer.len, ns->outputbuffer.start); |
244 | LOG (llevDebug, "Added %d to output buffer, total length now %d, start=%d\n", len, ns->outputbuffer.len, ns->outputbuffer.start); |
334 | #endif |
245 | #endif |
335 | } |
246 | } |
… | |
… | |
339 | * |
250 | * |
340 | * When the socket is clear to write, and we have backlogged data, this |
251 | * When the socket is clear to write, and we have backlogged data, this |
341 | * is called to write it out. |
252 | * is called to write it out. |
342 | */ |
253 | */ |
343 | void |
254 | void |
344 | write_socket_buffer (NewSocket * ns) |
255 | write_socket_buffer (client_socket * ns) |
345 | { |
256 | { |
346 | int amt, max; |
257 | int amt, max; |
347 | |
258 | |
348 | if (ns->outputbuffer.len == 0) |
259 | if (ns->outputbuffer.len == 0) |
349 | { |
260 | { |
… | |
… | |
355 | { |
266 | { |
356 | max = SOCKETBUFSIZE - ns->outputbuffer.start; |
267 | max = SOCKETBUFSIZE - ns->outputbuffer.start; |
357 | if (ns->outputbuffer.len < max) |
268 | if (ns->outputbuffer.len < max) |
358 | max = ns->outputbuffer.len; |
269 | max = ns->outputbuffer.len; |
359 | |
270 | |
360 | #ifdef WIN32 /* ***win32 write_socket_buffer: change write() to send() */ |
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361 | amt = send (ns->fd, ns->outputbuffer.data + ns->outputbuffer.start, max, 0); |
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362 | #else |
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363 | do |
271 | do |
364 | { |
272 | { |
365 | amt = write (ns->fd, ns->outputbuffer.data + ns->outputbuffer.start, max); |
273 | amt = write (ns->fd, ns->outputbuffer.data + ns->outputbuffer.start, max); |
366 | } |
274 | } |
367 | while ((amt < 0) && (errno == EINTR)); |
275 | while ((amt < 0) && (errno == EINTR)); |
368 | #endif |
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369 | |
276 | |
370 | if (amt < 0) |
277 | if (amt < 0) |
371 | { /* We got an error */ |
278 | { /* We got an error */ |
372 | |
279 | |
373 | #ifdef WIN32 /* ***win32 write_socket_buffer: change error handling */ |
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374 | if (amt == -1 && WSAGetLastError () != WSAEWOULDBLOCK) |
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375 | { |
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376 | LOG (llevError, "New socket write failed (wsb) (%d).\n", WSAGetLastError ()); |
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377 | #else |
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378 | if (errno != EWOULDBLOCK) |
280 | if (errno != EWOULDBLOCK) |
379 | { |
281 | { |
380 | LOG (llevError, "New socket write failed (wsb) (%d: %s).\n", errno, strerror (errno)); |
282 | LOG (llevError, "New socket write failed (wsb) (%d: %s).\n", errno, strerror (errno)); |
381 | #endif |
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382 | ns->status = Ns_Dead; |
283 | ns->status = Ns_Dead; |
383 | return; |
284 | return; |
384 | } |
285 | } |
385 | else |
286 | else |
386 | { /* EWOULDBLOCK */ |
287 | { /* EWOULDBLOCK */ |
… | |
… | |
408 | * provided (ns). buf is the data to write, len is the number |
309 | * provided (ns). buf is the data to write, len is the number |
409 | * of bytes to write. IT doesn't return anything - rather, it |
310 | * of bytes to write. IT doesn't return anything - rather, it |
410 | * updates the ns structure if we get an error. |
311 | * updates the ns structure if we get an error. |
411 | */ |
312 | */ |
412 | void |
313 | void |
413 | Write_To_Socket (NewSocket * ns, char *buf, int len) |
314 | client_socket::send (void *buf_, int len) |
414 | { |
315 | { |
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316 | char *buf = (char *)buf_; |
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317 | char *pos = buf; |
415 | int amt = 0; |
318 | int amt = 0; |
416 | char *pos = buf; |
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417 | |
319 | |
418 | if (ns->status == Ns_Dead || !buf) |
320 | if (status == Ns_Dead || !buf) |
419 | { |
321 | { |
420 | LOG (llevDebug, "Write_To_Socket called with dead socket\n"); |
322 | LOG (llevDebug, "Write_To_Socket called with dead socket\n"); |
421 | return; |
323 | return; |
422 | } |
324 | } |
423 | |
325 | |
424 | #ifndef __GNU__ /* This caused problems on Hurd */ |
326 | #ifndef __GNU__ /* This caused problems on Hurd */ |
425 | if (!ns->can_write) |
327 | if (!can_write) |
426 | { |
328 | { |
427 | add_to_buffer (ns, buf, len); |
329 | add_to_buffer (this, buf, len); |
428 | return; |
330 | return; |
429 | } |
331 | } |
430 | #endif |
332 | #endif |
|
|
333 | |
431 | /* If we manage to write more than we wanted, take it as a bonus */ |
334 | /* If we manage to write more than we wanted, take it as a bonus */ |
432 | while (len > 0) |
335 | while (len > 0) |
433 | { |
336 | { |
434 | |
|
|
435 | #ifdef WIN32 /* ***win32 Write_To_Socket: change write() to send() */ |
|
|
436 | amt = send (ns->fd, pos, len, 0); |
|
|
437 | #else |
|
|
438 | do |
337 | do |
439 | { |
338 | { |
440 | amt = write (ns->fd, pos, len); |
339 | amt = write (fd, pos, len); |
441 | } |
340 | } |
442 | while ((amt < 0) && (errno == EINTR)); |
341 | while ((amt < 0) && (errno == EINTR)); |
443 | #endif |
|
|
444 | |
342 | |
445 | if (amt < 0) |
343 | if (amt < 0) |
446 | { /* We got an error */ |
344 | { /* We got an error */ |
447 | #ifdef WIN32 /* ***win32 Write_To_Socket: change error handling */ |
|
|
448 | if (amt == -1 && WSAGetLastError () != WSAEWOULDBLOCK) |
|
|
449 | { |
|
|
450 | LOG (llevError, "New socket write failed WTS (%d).\n", WSAGetLastError ()); |
|
|
451 | #else |
|
|
452 | if (errno != EWOULDBLOCK) |
345 | if (errno != EWOULDBLOCK) |
453 | { |
346 | { |
454 | LOG (llevError, "New socket write failed WTS (%d: %s).\n", /* ---WIN32 */ |
347 | LOG (llevError, "New socket write failed WTS (%d: %s).\n", /* ---WIN32 */ |
455 | errno, strerror (errno)); |
348 | errno, strerror (errno)); |
456 | #endif |
|
|
457 | ns->status = Ns_Dead; |
349 | status = Ns_Dead; |
458 | return; |
350 | return; |
459 | } |
351 | } |
460 | else |
352 | else |
461 | { /* EWOULDBLOCK */ |
353 | { /* EWOULDBLOCK */ |
462 | /* can't write it, so store it away. */ |
354 | /* can't write it, so store it away. */ |
463 | add_to_buffer (ns, pos, len); |
355 | add_to_buffer (this, pos, len); |
464 | ns->can_write = 0; |
356 | can_write = 0; |
465 | return; |
357 | return; |
466 | } |
358 | } |
467 | } |
359 | } |
468 | /* amt gets set to 0 above in blocking code, so we do this as |
360 | /* amt gets set to 0 above in blocking code, so we do this as |
469 | * an else if to make sure we don't reprocess it. |
361 | * an else if to make sure we don't reprocess it. |
470 | */ |
362 | */ |
471 | else if (amt == 0) |
363 | else if (amt == 0) |
472 | { |
|
|
473 | LOG (llevError, "Write_To_Socket: No data written out.\n"); |
364 | LOG (llevError, "Write_To_Socket: No data written out.\n"); |
474 | } |
365 | |
475 | len -= amt; |
366 | len -= amt; |
476 | pos += amt; |
367 | pos += amt; |
477 | #ifdef CS_LOGSTATS |
368 | #ifdef CS_LOGSTATS |
478 | cst_tot.obytes += amt; |
369 | cst_tot.obytes += amt; |
479 | cst_lst.obytes += amt; |
370 | cst_lst.obytes += amt; |
480 | #endif |
371 | #endif |
481 | } |
372 | } |
482 | } |
373 | } |
483 | |
374 | |
|
|
375 | void |
|
|
376 | client_socket::socket_cb (iow &w, int got) |
|
|
377 | { |
|
|
378 | //printf ("iow got %x\n", got); |
|
|
379 | w.stop (); |
|
|
380 | } |
484 | |
381 | |
485 | /** |
382 | /** |
486 | * Takes a string of data, and writes it out to the socket. A very handy |
383 | * Takes a string of data, and writes it out to the socket. A very handy |
487 | * shortcut function. |
384 | * shortcut function. |
488 | */ |
385 | */ |
489 | void |
386 | void |
490 | cs_write_string (NewSocket * ns, const char *buf, int len) |
387 | client_socket::send_packet (packet &sl) |
491 | { |
388 | { |
492 | SockList sl; |
|
|
493 | |
|
|
494 | sl.len = len; |
|
|
495 | sl.buf = (unsigned char *) buf; |
|
|
496 | Send_With_Handling (ns, &sl); |
|
|
497 | } |
|
|
498 | |
|
|
499 | |
|
|
500 | /** |
|
|
501 | * Calls Write_To_Socket to send data to the client. |
|
|
502 | * |
|
|
503 | * The only difference in this function is that we take a SockList |
|
|
504 | *, and we prepend the length information. |
|
|
505 | */ |
|
|
506 | void |
|
|
507 | Send_With_Handling (NewSocket * ns, SockList * msg) |
|
|
508 | { |
|
|
509 | unsigned char sbuf[4]; |
|
|
510 | |
|
|
511 | if (ns->status == Ns_Dead || !msg) |
389 | if (status == Ns_Dead) |
512 | return; |
390 | return; |
513 | |
391 | |
514 | if (msg->len >= MAXSOCKBUF) |
392 | if (sl.length () >= MAXSOCKBUF) |
515 | { |
393 | { |
516 | LOG (llevError, "Trying to send a buffer beyond properly size, len =%d\n", msg->len); |
394 | LOG (llevError, "Trying to send a buffer beyond properly size, len =%d\n", sl.length ()); |
517 | /* Almost certainly we've overflowed a buffer, so quite now to make |
395 | /* Almost certainly we've overflowed a buffer, so quit now to make |
518 | * it easier to debug. |
396 | * it easier to debug. |
519 | */ |
397 | */ |
520 | abort (); |
398 | abort (); |
521 | } |
399 | } |
522 | sbuf[0] = ((uint32) (msg->len) >> 8) & 0xFF; |
|
|
523 | sbuf[1] = ((uint32) (msg->len)) & 0xFF; |
|
|
524 | if (ns->status != Ns_Old) |
|
|
525 | Write_To_Socket (ns, (char *) sbuf, 2); |
|
|
526 | Write_To_Socket (ns, (char *) msg->buf, msg->len); |
|
|
527 | } |
|
|
528 | |
400 | |
529 | /** |
401 | if (!sl.length ()) |
530 | * Takes a string of data, and writes it out to the socket. A very handy |
402 | return; |
531 | * shortcut function. |
|
|
532 | */ |
|
|
533 | void |
|
|
534 | Write_String_To_Socket (NewSocket * ns, char *buf, int len) |
|
|
535 | { |
|
|
536 | SockList sl; |
|
|
537 | |
403 | |
538 | sl.len = len; |
404 | assert (sl.hdrlen == 2); |
539 | sl.buf = (unsigned char *) buf; |
|
|
540 | Send_With_Handling (ns, &sl); |
|
|
541 | } |
|
|
542 | |
405 | |
|
|
406 | sl.buf_ [0] = sl.length () >> 8; |
|
|
407 | sl.buf_ [1] = sl.length () ; |
|
|
408 | |
|
|
409 | send (sl.buf_, sl.length () + sl.hdrlen); |
|
|
410 | } |
|
|
411 | |
|
|
412 | void |
|
|
413 | client_socket::send_packet (const char *buf, int len) |
|
|
414 | { |
|
|
415 | packet sl; |
|
|
416 | |
|
|
417 | sl << data (buf, len); |
|
|
418 | send_packet (sl); |
|
|
419 | } |
|
|
420 | |
|
|
421 | void |
|
|
422 | client_socket::send_packet (const char *buf) |
|
|
423 | { |
|
|
424 | send_packet (buf, strlen (buf)); |
|
|
425 | } |
543 | |
426 | |
544 | /****************************************************************************** |
427 | /****************************************************************************** |
545 | * |
428 | * |
546 | * statistics logging functions. |
429 | * statistics logging functions. |
547 | * |
430 | * |
… | |
… | |
570 | LOG (llevInfo, "CSSTAT: %.16s tot %d %d %d %d inc %d %d %d %d\n", |
453 | LOG (llevInfo, "CSSTAT: %.16s tot %d %d %d %d inc %d %d %d %d\n", |
571 | ctime (&now), cst_tot.ibytes, cst_tot.obytes, cst_tot.max_conn, |
454 | ctime (&now), cst_tot.ibytes, cst_tot.obytes, cst_tot.max_conn, |
572 | now - cst_tot.time_start, cst_lst.ibytes, cst_lst.obytes, cst_lst.max_conn, now - cst_lst.time_start); |
455 | now - cst_tot.time_start, cst_lst.ibytes, cst_lst.obytes, cst_lst.max_conn, now - cst_lst.time_start); |
573 | cst_lst.ibytes = 0; |
456 | cst_lst.ibytes = 0; |
574 | cst_lst.obytes = 0; |
457 | cst_lst.obytes = 0; |
575 | cst_lst.max_conn = socket_info.nconns; |
|
|
576 | cst_lst.time_start = now; |
458 | cst_lst.time_start = now; |
577 | } |
459 | } |
578 | #endif |
460 | #endif |
|
|
461 | |