1 | /* |
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2 | * T T C P . C |
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3 | * |
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4 | * Test TCP connection. Makes a connection on port 5001 |
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5 | * and transfers fabricated buffers or data copied from stdin. |
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6 | * |
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7 | * Usable on 4.2, 4.3, and 4.1a systems by defining one of |
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8 | * BSD42 BSD43 (BSD41a) |
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9 | * Machines using System V with BSD sockets should define SYSV. |
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10 | * |
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11 | * Modified for operation under 4.2BSD, 18 Dec 84 |
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12 | * T.C. Slattery, USNA |
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13 | * Minor improvements, Mike Muuss and Terry Slattery, 16-Oct-85. |
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14 | * Modified in 1989 at Silicon Graphics, Inc. |
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15 | * catch SIGPIPE to be able to print stats when receiver has died |
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16 | * for tcp, don't look for sentinel during reads to allow small transfers |
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17 | * increased default buffer size to 8K, nbuf to 2K to transfer 16MB |
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18 | * moved default port to 5001, beyond IPPORT_USERRESERVED |
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19 | * make sinkmode default because it is more popular, |
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20 | * -s now means don't sink/source |
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21 | * count number of read/write system calls to see effects of |
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22 | * blocking from full socket buffers |
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23 | * for tcp, -D option turns off buffered writes (sets TCP_NODELAY sockopt) |
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24 | * buffer alignment options, -A and -O |
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25 | * print stats in a format that's a bit easier to use with grep & awk |
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26 | * for SYSV, mimic BSD routines to use most of the existing timing code |
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27 | * Modified by Steve Miller of the University of Maryland, College Park |
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28 | * -b sets the socket buffer size (SO_SNDBUF/SO_RCVBUF) |
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29 | * Modified Sept. 1989 at Silicon Graphics, Inc. |
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30 | * restored -s sense at request of tcs@brl |
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31 | * Modified Oct. 1991 at Silicon Graphics, Inc. |
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32 | * use getopt(3) for option processing, add -f and -T options. |
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33 | * SGI IRIX 3.3 and 4.0 releases don't need #define SYSV. |
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34 | * |
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35 | * Distribution Status - |
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36 | * Public Domain. Distribution Unlimited. |
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37 | * |
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38 | * $Id$ |
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39 | */ |
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40 | |
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41 | #ifndef lint |
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42 | /* static char RCSid[] = "ttcp.c $Revision$"; */ |
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43 | #endif |
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44 | |
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45 | #define BSD43 |
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46 | /* #define BSD42 */ |
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47 | /* #define BSD41a */ |
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48 | /* #define SYSV */ /* required on SGI IRIX releases before 3.3 */ |
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49 | |
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50 | #define ENABLE_NANOSLEEP_DELAY |
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51 | |
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52 | #include <stdio.h> |
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53 | #include <signal.h> |
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54 | #include <ctype.h> |
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55 | #include <errno.h> |
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56 | #include <sys/types.h> |
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57 | #include <sys/socket.h> |
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58 | #include <netinet/in.h> |
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59 | #include <netinet/tcp.h> |
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60 | #include <arpa/inet.h> |
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61 | #include <netdb.h> |
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62 | #include <string.h> |
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63 | #include <sys/time.h> /* struct timeval */ |
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64 | |
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65 | #include <unistd.h> |
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66 | #include <stdlib.h> |
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67 | |
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68 | #if defined(SYSV) |
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69 | #include <sys/times.h> |
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70 | #include <sys/param.h> |
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71 | struct rusage { |
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72 | struct timeval ru_utime, ru_stime; |
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73 | }; |
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74 | #define RUSAGE_SELF 0 |
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75 | #else |
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76 | #include <sys/resource.h> |
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77 | #endif |
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78 | |
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79 | struct sockaddr_in sinme; |
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80 | struct sockaddr_in sinhim; |
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81 | struct sockaddr_in frominet; |
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82 | |
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83 | /* these make it easier to avoid warnings */ |
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84 | struct sockaddr *sinhim_p = (struct sockaddr *) &sinhim; |
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85 | struct sockaddr *sinme_p = (struct sockaddr *) &sinme; |
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86 | struct sockaddr *frominet_p = (struct sockaddr *) &frominet; |
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87 | |
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88 | int domain; |
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89 | socklen_t fromlen; |
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90 | int fd; /* fd of network socket */ |
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91 | |
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92 | int buflen = 8 * 1024; /* length of buffer */ |
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93 | char *buf; /* ptr to dynamic buffer */ |
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94 | int nbuf = 2 * 1024; /* number of buffers to send in sinkmode */ |
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95 | |
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96 | int bufoffset = 0; /* align buffer to this */ |
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97 | int bufalign = 16*1024; /* modulo this */ |
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98 | |
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99 | int udp = 0; /* 0 = tcp, !0 = udp */ |
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100 | int options = 0; /* socket options */ |
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101 | int one = 1; /* for 4.3 BSD style setsockopt() */ |
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102 | short port = 5001; /* TCP port number */ |
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103 | char *host; /* ptr to name of host */ |
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104 | int trans; /* 0=receive, !0=transmit mode */ |
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105 | int sinkmode = 0; /* 0=normal I/O, !0=sink/source mode */ |
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106 | int verbose = 0; /* 0=print basic info, 1=print cpu rate, proc |
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107 | * resource usage. */ |
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108 | int nodelay = 0; /* set TCP_NODELAY socket option */ |
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109 | int b_flag = 0; /* use mread() */ |
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110 | int sockbufsize = 0; /* socket buffer size to use */ |
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111 | char fmt = 'K'; /* output format: k = kilobits, K = kilobytes, |
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112 | * m = megabits, M = megabytes, |
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113 | * g = gigabits, G = gigabytes */ |
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114 | int touchdata = 0; /* access data after reading */ |
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115 | long milliseconds = 0; /* delay in milliseconds */ |
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116 | |
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117 | struct hostent *addr; |
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118 | extern int errno; |
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119 | extern int optind; |
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120 | extern char *optarg; |
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121 | |
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122 | char Usage[] = "\ |
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123 | Usage: ttcp -t [-options] host [ < in ]\n\ |
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124 | ttcp -r [-options > out]\n\ |
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125 | Common options:\n\ |
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126 | -l ## length of bufs read from or written to network (default 8192)\n\ |
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127 | -u use UDP instead of TCP\n\ |
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128 | -p ## port number to send to or listen at (default 5001)\n\ |
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129 | -s -t: source a pattern to network\n\ |
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130 | -r: sink (discard) all data from network\n\ |
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131 | -A align the start of buffers to this modulus (default 16384)\n\ |
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132 | -O start buffers at this offset from the modulus (default 0)\n\ |
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133 | -v verbose: print more statistics\n\ |
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134 | -d set SO_DEBUG socket option\n\ |
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135 | -b ## set socket buffer size (if supported)\n\ |
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136 | -f X format for rate: k,K = kilo{bit,byte}; m,M = mega; g,G = giga\n\ |
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137 | Options specific to -t:\n\ |
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138 | -n## number of source bufs written to network (default 2048)\n\ |
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139 | -D don't buffer TCP writes (sets TCP_NODELAY socket option)\n\ |
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140 | Options specific to -r:\n\ |
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141 | -B for -s, only output full blocks as specified by -l (for TAR)\n\ |
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142 | -T \"touch\": access each byte as it's read\n\ |
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143 | -m ## delay for specified milliseconds between each write\n\ |
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144 | "; |
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145 | |
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146 | char stats[128]; |
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147 | double nbytes; /* bytes on net */ |
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148 | unsigned long numCalls; /* # of I/O system calls */ |
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149 | double cput, realt; /* user, real time (seconds) */ |
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150 | |
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151 | void err(); |
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152 | void mes(); |
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153 | void pattern(); |
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154 | void prep_timer(); |
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155 | double read_timer(); |
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156 | int Nread(); |
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157 | int Nwrite(); |
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158 | void delay(); |
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159 | int mread(); |
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160 | char *outfmt(); |
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161 | |
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162 | void |
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163 | sigpipe() |
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164 | { |
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165 | } |
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166 | |
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167 | void millisleep(long msec) |
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168 | { |
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169 | #if defined(ENABLE_NANOSLEEP_DELAY) |
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170 | struct timespec req; |
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171 | |
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172 | req.tv_sec = msec / 1000; |
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173 | req.tv_nsec = (msec % 1000) * 1000000; |
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174 | |
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175 | nanosleep( &req, NULL ); |
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176 | #endif |
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177 | } |
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178 | int main(argc,argv) |
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179 | int argc; |
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180 | char **argv; |
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181 | { |
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182 | unsigned long addr_tmp; |
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183 | int c; |
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184 | |
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185 | if (argc < 2) goto usage; |
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186 | |
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187 | while ((c = getopt(argc, argv, "drstuvBDTb:f:l:m:n:p:A:O:")) != -1) { |
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188 | switch (c) { |
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189 | |
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190 | case 'B': |
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191 | b_flag = 1; |
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192 | break; |
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193 | case 't': |
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194 | trans = 1; |
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195 | break; |
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196 | case 'r': |
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197 | trans = 0; |
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198 | break; |
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199 | case 'd': |
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200 | options |= SO_DEBUG; |
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201 | break; |
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202 | case 'D': |
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203 | #ifdef TCP_NODELAY |
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204 | nodelay = 1; |
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205 | #else |
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206 | fprintf(stderr, |
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207 | "ttcp: -D option ignored: TCP_NODELAY socket option not supported\n"); |
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208 | #endif |
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209 | break; |
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210 | case 'm': |
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211 | milliseconds = atoi(optarg); |
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212 | #if !defined(ENABLE_NANOSLEEP_DELAY) |
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213 | fprintf(stderr, "millisecond delay disabled\n"); |
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214 | #endif |
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215 | break; |
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216 | case 'n': |
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217 | nbuf = atoi(optarg); |
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218 | break; |
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219 | case 'l': |
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220 | buflen = atoi(optarg); |
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221 | break; |
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222 | case 's': |
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223 | sinkmode = !sinkmode; |
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224 | break; |
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225 | case 'p': |
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226 | port = atoi(optarg); |
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227 | break; |
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228 | case 'u': |
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229 | udp = 1; |
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230 | break; |
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231 | case 'v': |
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232 | verbose = 1; |
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233 | break; |
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234 | case 'A': |
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235 | bufalign = atoi(optarg); |
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236 | break; |
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237 | case 'O': |
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238 | bufoffset = atoi(optarg); |
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239 | break; |
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240 | case 'b': |
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241 | #if defined(SO_SNDBUF) || defined(SO_RCVBUF) |
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242 | sockbufsize = atoi(optarg); |
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243 | #else |
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244 | fprintf(stderr, |
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245 | "ttcp: -b option ignored: SO_SNDBUF/SO_RCVBUF socket options not supported\n"); |
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246 | #endif |
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247 | break; |
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248 | case 'f': |
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249 | fmt = *optarg; |
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250 | break; |
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251 | case 'T': |
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252 | touchdata = 1; |
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253 | break; |
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254 | |
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255 | default: |
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256 | goto usage; |
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257 | } |
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258 | } |
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259 | if(trans) { |
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260 | /* xmitr */ |
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261 | if (optind == argc) |
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262 | goto usage; |
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263 | bzero((char *)&sinhim, sizeof(sinhim)); |
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264 | host = argv[optind]; |
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265 | if (atoi(host) > 0 ) { |
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266 | /* Numeric */ |
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267 | sinhim.sin_family = AF_INET; |
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268 | #if defined(cray) |
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269 | addr_tmp = inet_addr(host); |
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270 | sinhim.sin_addr = addr_tmp; |
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271 | #else |
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272 | sinhim.sin_addr.s_addr = inet_addr(host); |
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273 | #endif |
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274 | } else { |
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275 | if ((addr=gethostbyname(host)) == NULL) |
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276 | err("bad hostname"); |
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277 | sinhim.sin_family = addr->h_addrtype; |
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278 | bcopy(addr->h_addr,(char*)&addr_tmp, addr->h_length); |
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279 | #if defined(cray) |
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280 | sinhim.sin_addr = addr_tmp; |
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281 | #else |
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282 | sinhim.sin_addr.s_addr = addr_tmp; |
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283 | #endif /* cray */ |
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284 | } |
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285 | sinhim.sin_port = htons(port); |
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286 | sinme.sin_port = 0; /* free choice */ |
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287 | } else { |
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288 | /* rcvr */ |
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289 | sinme.sin_port = htons(port); |
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290 | } |
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291 | |
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292 | |
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293 | if (udp && buflen < 5) { |
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294 | buflen = 5; /* send more than the sentinel size */ |
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295 | } |
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296 | |
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297 | if ( (buf = (char *)malloc(buflen+bufalign)) == (char *)NULL) |
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298 | err("malloc"); |
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299 | if (bufalign != 0) |
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300 | buf +=(bufalign - ((int)buf % bufalign) + bufoffset) % bufalign; |
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301 | |
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302 | if (trans) { |
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303 | fprintf(stdout, |
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304 | "ttcp-t: buflen=%d, nbuf=%d, align=%d/%d, port=%d", |
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305 | buflen, nbuf, bufalign, bufoffset, port); |
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306 | if (sockbufsize) |
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307 | fprintf(stdout, ", sockbufsize=%d", sockbufsize); |
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308 | fprintf(stdout, " %s -> %s\n", udp?"udp":"tcp", host); |
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309 | } else { |
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310 | fprintf(stdout, |
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311 | "ttcp-r: buflen=%d, nbuf=%d, align=%d/%d, port=%d", |
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312 | buflen, nbuf, bufalign, bufoffset, port); |
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313 | if (sockbufsize) |
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314 | fprintf(stdout, ", sockbufsize=%d", sockbufsize); |
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315 | fprintf(stdout, " %s\n", udp?"udp":"tcp"); |
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316 | } |
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317 | |
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318 | if ((fd = socket(AF_INET, udp?SOCK_DGRAM:SOCK_STREAM, 0)) < 0) |
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319 | err("socket"); |
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320 | mes("socket"); |
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321 | |
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322 | if (bind(fd, sinme_p, sizeof(sinme)) < 0) |
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323 | err("bind"); |
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324 | |
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325 | #if defined(SO_SNDBUF) || defined(SO_RCVBUF) |
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326 | if (sockbufsize) { |
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327 | if (trans) { |
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328 | if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &sockbufsize, |
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329 | sizeof sockbufsize) < 0) |
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330 | err("setsockopt: sndbuf"); |
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331 | mes("sndbuf"); |
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332 | } else { |
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333 | if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &sockbufsize, |
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334 | sizeof sockbufsize) < 0) |
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335 | err("setsockopt: rcvbuf"); |
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336 | mes("rcvbuf"); |
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337 | } |
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338 | } |
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339 | #endif |
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340 | |
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341 | if (!udp) { |
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342 | #if !defined(__rtems__) |
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343 | signal(SIGPIPE, sigpipe); |
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344 | #endif |
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345 | if (trans) { |
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346 | /* We are the client if transmitting */ |
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347 | if (options) { |
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348 | #if defined(BSD42) |
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349 | if( setsockopt(fd, SOL_SOCKET, options, 0, 0) < 0) |
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350 | #else /* BSD43 */ |
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351 | if( setsockopt(fd, SOL_SOCKET, options, &one, sizeof(one)) < 0) |
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352 | #endif |
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353 | err("setsockopt"); |
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354 | } |
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355 | #ifdef TCP_NODELAY |
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356 | if (nodelay) { |
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357 | struct protoent *p; |
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358 | p = getprotobyname("tcp"); |
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359 | if( p && setsockopt(fd, p->p_proto, TCP_NODELAY, |
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360 | &one, sizeof(one)) < 0) |
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361 | err("setsockopt: nodelay"); |
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362 | mes("nodelay"); |
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363 | } |
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364 | #endif |
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365 | if(connect(fd, sinhim_p, sizeof(sinhim) ) < 0) |
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366 | err("connect"); |
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367 | mes("connect"); |
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368 | } else { |
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369 | /* otherwise, we are the server and |
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370 | * should listen for the connections |
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371 | */ |
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372 | #if defined(ultrix) || defined(sgi) |
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373 | listen(fd,1); /* workaround for alleged u4.2 bug */ |
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374 | #else |
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375 | listen(fd,0); /* allow a queue of 0 */ |
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376 | #endif |
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377 | if(options) { |
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378 | #if defined(BSD42) |
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379 | if( setsockopt(fd, SOL_SOCKET, options, 0, 0) < 0) |
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380 | #else /* BSD43 */ |
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381 | if( setsockopt(fd, SOL_SOCKET, options, &one, sizeof(one)) < 0) |
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382 | #endif |
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383 | err("setsockopt"); |
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384 | } |
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385 | fromlen = sizeof(frominet); |
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386 | domain = AF_INET; |
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387 | if((fd=accept(fd, frominet_p, &fromlen) ) < 0) |
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388 | err("accept"); |
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389 | { struct sockaddr_in peer; |
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390 | socklen_t peerlen = sizeof(peer); |
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391 | if (getpeername(fd, (struct sockaddr *) &peer, |
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392 | &peerlen) < 0) { |
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393 | err("getpeername"); |
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394 | } |
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395 | fprintf(stderr,"ttcp-r: accept from %s\n", |
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396 | inet_ntoa(peer.sin_addr)); |
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397 | } |
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398 | } |
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399 | } |
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400 | prep_timer(); |
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401 | errno = 0; |
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402 | if (sinkmode) { |
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403 | register int cnt; |
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404 | if (trans) { |
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405 | pattern( buf, buflen ); |
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406 | if(udp) (void)Nwrite( fd, buf, 4 ); /* rcvr start */ |
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407 | while (nbuf-- && Nwrite(fd,buf,buflen) == buflen) { |
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408 | nbytes += buflen; |
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409 | millisleep( milliseconds ); |
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410 | } |
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411 | if(udp) (void)Nwrite( fd, buf, 4 ); /* rcvr end */ |
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412 | } else { |
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413 | if (udp) { |
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414 | while ((cnt=Nread(fd,buf,buflen)) > 0) { |
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415 | static int going = 0; |
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416 | if( cnt <= 4 ) { |
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417 | if( going ) |
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418 | break; /* "EOF" */ |
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419 | going = 1; |
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420 | prep_timer(); |
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421 | } else { |
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422 | nbytes += cnt; |
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423 | } |
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424 | } |
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425 | } else { |
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426 | while ((cnt=Nread(fd,buf,buflen)) > 0) { |
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427 | nbytes += cnt; |
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428 | } |
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429 | } |
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430 | } |
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431 | } else { |
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432 | register int cnt; |
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433 | if (trans) { |
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434 | while((cnt=read(0,buf,buflen)) > 0 && |
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435 | Nwrite(fd,buf,cnt) == cnt) |
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436 | nbytes += cnt; |
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437 | } else { |
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438 | while((cnt=Nread(fd,buf,buflen)) > 0 && |
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439 | write(1,buf,cnt) == cnt) |
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440 | nbytes += cnt; |
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441 | } |
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442 | } |
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443 | if(errno) err("IO"); |
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444 | (void)read_timer(stats,sizeof(stats)); |
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445 | if(udp&&trans) { |
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446 | (void)Nwrite( fd, buf, 4 ); /* rcvr end */ |
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447 | (void)Nwrite( fd, buf, 4 ); /* rcvr end */ |
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448 | (void)Nwrite( fd, buf, 4 ); /* rcvr end */ |
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449 | (void)Nwrite( fd, buf, 4 ); /* rcvr end */ |
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450 | } |
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451 | if( cput <= 0.0 ) cput = 0.001; |
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452 | if( realt <= 0.0 ) realt = 0.001; |
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453 | fprintf(stdout, |
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454 | "ttcp%s: %.0f bytes in %.2f real seconds = %s/sec +++\n", |
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455 | trans?"-t":"-r", |
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456 | nbytes, realt, outfmt(nbytes/realt)); |
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457 | if (verbose) { |
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458 | fprintf(stdout, |
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459 | "ttcp%s: %.0f bytes in %.2f CPU seconds = %s/cpu sec\n", |
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460 | trans?"-t":"-r", |
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461 | nbytes, cput, outfmt(nbytes/cput)); |
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462 | } |
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463 | fprintf(stdout, |
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464 | "ttcp%s: %ld I/O calls, msec/call = %.2f, calls/sec = %.2f\n", |
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465 | trans?"-t":"-r", |
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466 | numCalls, |
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467 | 1024.0 * realt/((double)numCalls), |
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468 | ((double)numCalls)/realt); |
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469 | fprintf(stdout,"ttcp%s: %s\n", trans?"-t":"-r", stats); |
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470 | if (verbose) { |
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471 | fprintf(stdout, |
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472 | "ttcp%s: buffer address %p\n", |
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473 | trans?"-t":"-r", |
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474 | buf); |
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475 | } |
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476 | exit(0); |
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477 | |
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478 | usage: |
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479 | fprintf(stderr,Usage); |
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480 | exit(1); |
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481 | return 0; |
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482 | } |
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483 | |
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484 | void |
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485 | err(s) |
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486 | char *s; |
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487 | { |
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488 | fprintf(stderr,"ttcp%s: ", trans?"-t":"-r"); |
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489 | perror(s); |
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490 | fprintf(stderr,"errno=%d\n",errno); |
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491 | exit(1); |
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492 | } |
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493 | |
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494 | void |
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495 | mes(s) |
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496 | char *s; |
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497 | { |
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498 | fprintf(stderr,"ttcp%s: %s\n", trans?"-t":"-r", s); |
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499 | } |
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500 | |
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501 | void pattern( cp, cnt ) |
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502 | register char *cp; |
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503 | register int cnt; |
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504 | { |
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505 | register char c; |
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506 | c = 0; |
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507 | while( cnt-- > 0 ) { |
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508 | while( !isprint((c&0x7F)) ) c++; |
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509 | *cp++ = (c++&0x7F); |
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510 | } |
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511 | } |
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512 | |
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513 | char * |
---|
514 | outfmt(b) |
---|
515 | double b; |
---|
516 | { |
---|
517 | static char obuf[50]; |
---|
518 | switch (fmt) { |
---|
519 | case 'G': |
---|
520 | sprintf(obuf, "%.2f GB", b / 1024.0 / 1024.0 / 1024.0); |
---|
521 | break; |
---|
522 | default: |
---|
523 | case 'K': |
---|
524 | sprintf(obuf, "%.2f KB", b / 1024.0); |
---|
525 | break; |
---|
526 | case 'M': |
---|
527 | sprintf(obuf, "%.2f MB", b / 1024.0 / 1024.0); |
---|
528 | break; |
---|
529 | case 'g': |
---|
530 | sprintf(obuf, "%.2f Gbit", b * 8.0 / 1024.0 / 1024.0 / 1024.0); |
---|
531 | break; |
---|
532 | case 'k': |
---|
533 | sprintf(obuf, "%.2f Kbit", b * 8.0 / 1024.0); |
---|
534 | break; |
---|
535 | case 'm': |
---|
536 | sprintf(obuf, "%.2f Mbit", b * 8.0 / 1024.0 / 1024.0); |
---|
537 | break; |
---|
538 | } |
---|
539 | return obuf; |
---|
540 | } |
---|
541 | |
---|
542 | static struct timeval time0; /* Time at which timing started */ |
---|
543 | static struct rusage ru0; /* Resource utilization at the start */ |
---|
544 | |
---|
545 | static void prusage(); |
---|
546 | static void tvadd(); |
---|
547 | static void tvsub(); |
---|
548 | static void psecs(); |
---|
549 | |
---|
550 | #if defined(SYSV) |
---|
551 | /*ARGSUSED*/ |
---|
552 | static |
---|
553 | getrusage(ignored, ru) |
---|
554 | int ignored; |
---|
555 | register struct rusage *ru; |
---|
556 | { |
---|
557 | struct tms buf; |
---|
558 | |
---|
559 | times(&buf); |
---|
560 | |
---|
561 | /* Assumption: HZ <= 2147 (LONG_MAX/1000000) */ |
---|
562 | ru->ru_stime.tv_sec = buf.tms_stime / HZ; |
---|
563 | ru->ru_stime.tv_usec = ((buf.tms_stime % HZ) * 1000000) / HZ; |
---|
564 | ru->ru_utime.tv_sec = buf.tms_utime / HZ; |
---|
565 | ru->ru_utime.tv_usec = ((buf.tms_utime % HZ) * 1000000) / HZ; |
---|
566 | } |
---|
567 | |
---|
568 | /*ARGSUSED*/ |
---|
569 | static |
---|
570 | gettimeofday(tp, zp) |
---|
571 | struct timeval *tp; |
---|
572 | struct timezone *zp; |
---|
573 | { |
---|
574 | tp->tv_sec = time(0); |
---|
575 | tp->tv_usec = 0; |
---|
576 | } |
---|
577 | #endif /* SYSV */ |
---|
578 | |
---|
579 | /* |
---|
580 | * P R E P _ T I M E R |
---|
581 | */ |
---|
582 | void |
---|
583 | prep_timer() |
---|
584 | { |
---|
585 | gettimeofday(&time0, (struct timezone *)0); |
---|
586 | getrusage(RUSAGE_SELF, &ru0); |
---|
587 | } |
---|
588 | |
---|
589 | /* |
---|
590 | * R E A D _ T I M E R |
---|
591 | * |
---|
592 | */ |
---|
593 | double |
---|
594 | read_timer(str,len) |
---|
595 | char *str; |
---|
596 | { |
---|
597 | struct timeval timedol; |
---|
598 | struct rusage ru1; |
---|
599 | struct timeval td; |
---|
600 | struct timeval tend, tstart; |
---|
601 | char line[132]; |
---|
602 | |
---|
603 | getrusage(RUSAGE_SELF, &ru1); |
---|
604 | gettimeofday(&timedol, (struct timezone *)0); |
---|
605 | prusage(&ru0, &ru1, &timedol, &time0, line); |
---|
606 | (void)strncpy( str, line, len ); |
---|
607 | |
---|
608 | /* Get real time */ |
---|
609 | tvsub( &td, &timedol, &time0 ); |
---|
610 | realt = td.tv_sec + ((double)td.tv_usec) / 1000000; |
---|
611 | |
---|
612 | /* Get CPU time (user+sys) */ |
---|
613 | tvadd( &tend, &ru1.ru_utime, &ru1.ru_stime ); |
---|
614 | tvadd( &tstart, &ru0.ru_utime, &ru0.ru_stime ); |
---|
615 | tvsub( &td, &tend, &tstart ); |
---|
616 | cput = td.tv_sec + ((double)td.tv_usec) / 1000000; |
---|
617 | if( cput < 0.00001 ) cput = 0.00001; |
---|
618 | return( cput ); |
---|
619 | } |
---|
620 | |
---|
621 | static void |
---|
622 | prusage(r0, r1, e, b, outp) |
---|
623 | register struct rusage *r0, *r1; |
---|
624 | struct timeval *e, *b; |
---|
625 | char *outp; |
---|
626 | { |
---|
627 | struct timeval tdiff; |
---|
628 | register time_t t; |
---|
629 | register char *cp; |
---|
630 | register int i; |
---|
631 | int ms; |
---|
632 | |
---|
633 | t = (r1->ru_utime.tv_sec-r0->ru_utime.tv_sec)*100+ |
---|
634 | (r1->ru_utime.tv_usec-r0->ru_utime.tv_usec)/10000+ |
---|
635 | (r1->ru_stime.tv_sec-r0->ru_stime.tv_sec)*100+ |
---|
636 | (r1->ru_stime.tv_usec-r0->ru_stime.tv_usec)/10000; |
---|
637 | ms = (e->tv_sec-b->tv_sec)*100 + (e->tv_usec-b->tv_usec)/10000; |
---|
638 | |
---|
639 | #define END(x) {while(*x) x++;} |
---|
640 | #if defined(SYSV) |
---|
641 | cp = "%Uuser %Ssys %Ereal %P"; |
---|
642 | #else |
---|
643 | #if defined(sgi) /* IRIX 3.3 will show 0 for %M,%F,%R,%C */ |
---|
644 | cp = "%Uuser %Ssys %Ereal %P %Mmaxrss %F+%Rpf %Ccsw"; |
---|
645 | #else |
---|
646 | cp = "%Uuser %Ssys %Ereal %P %Xi+%Dd %Mmaxrss %F+%Rpf %Ccsw"; |
---|
647 | #endif |
---|
648 | #endif |
---|
649 | for (; *cp; cp++) { |
---|
650 | if (*cp != '%') |
---|
651 | *outp++ = *cp; |
---|
652 | else if (cp[1]) switch(*++cp) { |
---|
653 | |
---|
654 | case 'U': |
---|
655 | tvsub(&tdiff, &r1->ru_utime, &r0->ru_utime); |
---|
656 | sprintf(outp,"%ld.%01ld", tdiff.tv_sec, tdiff.tv_usec/100000); |
---|
657 | END(outp); |
---|
658 | break; |
---|
659 | |
---|
660 | case 'S': |
---|
661 | tvsub(&tdiff, &r1->ru_stime, &r0->ru_stime); |
---|
662 | sprintf(outp,"%ld.%01ld", tdiff.tv_sec, tdiff.tv_usec/100000); |
---|
663 | END(outp); |
---|
664 | break; |
---|
665 | |
---|
666 | case 'E': |
---|
667 | psecs(ms / 100, outp); |
---|
668 | END(outp); |
---|
669 | break; |
---|
670 | |
---|
671 | case 'P': |
---|
672 | sprintf(outp,"%d%%", (int) (t*100 / ((ms ? ms : 1)))); |
---|
673 | END(outp); |
---|
674 | break; |
---|
675 | |
---|
676 | #if !defined(SYSV) |
---|
677 | case 'W': |
---|
678 | i = r1->ru_nswap - r0->ru_nswap; |
---|
679 | sprintf(outp,"%d", i); |
---|
680 | END(outp); |
---|
681 | break; |
---|
682 | |
---|
683 | case 'X': |
---|
684 | sprintf(outp,"%ld", t == 0 ? 0 : (r1->ru_ixrss-r0->ru_ixrss)/t); |
---|
685 | END(outp); |
---|
686 | break; |
---|
687 | |
---|
688 | case 'D': |
---|
689 | sprintf(outp,"%ld", t == 0 ? 0 : |
---|
690 | (r1->ru_idrss+r1->ru_isrss-(r0->ru_idrss+r0->ru_isrss))/t); |
---|
691 | END(outp); |
---|
692 | break; |
---|
693 | |
---|
694 | case 'K': |
---|
695 | sprintf(outp,"%ld", t == 0 ? 0 : |
---|
696 | ((r1->ru_ixrss+r1->ru_isrss+r1->ru_idrss) - |
---|
697 | (r0->ru_ixrss+r0->ru_idrss+r0->ru_isrss))/t); |
---|
698 | END(outp); |
---|
699 | break; |
---|
700 | |
---|
701 | case 'M': |
---|
702 | sprintf(outp,"%d", r1->ru_maxrss/2); |
---|
703 | END(outp); |
---|
704 | break; |
---|
705 | |
---|
706 | case 'F': |
---|
707 | sprintf(outp,"%d", r1->ru_majflt-r0->ru_majflt); |
---|
708 | END(outp); |
---|
709 | break; |
---|
710 | |
---|
711 | case 'R': |
---|
712 | sprintf(outp,"%d", r1->ru_minflt-r0->ru_minflt); |
---|
713 | END(outp); |
---|
714 | break; |
---|
715 | |
---|
716 | case 'I': |
---|
717 | sprintf(outp,"%d", r1->ru_inblock-r0->ru_inblock); |
---|
718 | END(outp); |
---|
719 | break; |
---|
720 | |
---|
721 | case 'O': |
---|
722 | sprintf(outp,"%d", r1->ru_oublock-r0->ru_oublock); |
---|
723 | END(outp); |
---|
724 | break; |
---|
725 | case 'C': |
---|
726 | sprintf(outp,"%d+%d", r1->ru_nvcsw-r0->ru_nvcsw, |
---|
727 | r1->ru_nivcsw-r0->ru_nivcsw ); |
---|
728 | END(outp); |
---|
729 | break; |
---|
730 | #endif /* !SYSV */ |
---|
731 | } |
---|
732 | } |
---|
733 | *outp = '\0'; |
---|
734 | } |
---|
735 | |
---|
736 | static void |
---|
737 | tvadd(tsum, t0, t1) |
---|
738 | struct timeval *tsum, *t0, *t1; |
---|
739 | { |
---|
740 | |
---|
741 | tsum->tv_sec = t0->tv_sec + t1->tv_sec; |
---|
742 | tsum->tv_usec = t0->tv_usec + t1->tv_usec; |
---|
743 | if (tsum->tv_usec > 1000000) |
---|
744 | tsum->tv_sec++, tsum->tv_usec -= 1000000; |
---|
745 | } |
---|
746 | |
---|
747 | static void |
---|
748 | tvsub(tdiff, t1, t0) |
---|
749 | struct timeval *tdiff, *t1, *t0; |
---|
750 | { |
---|
751 | |
---|
752 | tdiff->tv_sec = t1->tv_sec - t0->tv_sec; |
---|
753 | tdiff->tv_usec = t1->tv_usec - t0->tv_usec; |
---|
754 | if (tdiff->tv_usec < 0) |
---|
755 | tdiff->tv_sec--, tdiff->tv_usec += 1000000; |
---|
756 | } |
---|
757 | |
---|
758 | static void |
---|
759 | psecs(l,cp) |
---|
760 | long l; |
---|
761 | register char *cp; |
---|
762 | { |
---|
763 | register int i; |
---|
764 | |
---|
765 | i = l / 3600; |
---|
766 | if (i) { |
---|
767 | sprintf(cp,"%d:", i); |
---|
768 | END(cp); |
---|
769 | i = l % 3600; |
---|
770 | sprintf(cp,"%d%d", (i/60) / 10, (i/60) % 10); |
---|
771 | END(cp); |
---|
772 | } else { |
---|
773 | i = l; |
---|
774 | sprintf(cp,"%d", i / 60); |
---|
775 | END(cp); |
---|
776 | } |
---|
777 | i %= 60; |
---|
778 | *cp++ = ':'; |
---|
779 | sprintf(cp,"%d%d", i / 10, i % 10); |
---|
780 | } |
---|
781 | |
---|
782 | /* |
---|
783 | * N R E A D |
---|
784 | */ |
---|
785 | int Nread( fd, buf, count ) |
---|
786 | int fd; |
---|
787 | void *buf; |
---|
788 | int count; |
---|
789 | { |
---|
790 | struct sockaddr_in from; |
---|
791 | socklen_t len = sizeof(from); |
---|
792 | register int cnt; |
---|
793 | if( udp ) { |
---|
794 | cnt = recvfrom( fd, buf, count, 0, (struct sockaddr *)&from, &len ); |
---|
795 | numCalls++; |
---|
796 | } else { |
---|
797 | if( b_flag ) |
---|
798 | cnt = mread( fd, buf, count ); /* fill buf */ |
---|
799 | else { |
---|
800 | cnt = read( fd, buf, count ); |
---|
801 | numCalls++; |
---|
802 | } |
---|
803 | if (touchdata && cnt > 0) { |
---|
804 | register int c = cnt, sum; |
---|
805 | register char *b = buf; |
---|
806 | while (c--) |
---|
807 | sum += *b++; |
---|
808 | } |
---|
809 | } |
---|
810 | return(cnt); |
---|
811 | } |
---|
812 | |
---|
813 | /* |
---|
814 | * N W R I T E |
---|
815 | */ |
---|
816 | int Nwrite( fd, buf, count ) |
---|
817 | int fd; |
---|
818 | void *buf; |
---|
819 | int count; |
---|
820 | { |
---|
821 | register int cnt; |
---|
822 | if( udp ) { |
---|
823 | again: |
---|
824 | cnt = sendto( fd, buf, count, 0, sinhim_p, sizeof(sinhim) ); |
---|
825 | numCalls++; |
---|
826 | if( cnt<0 && errno == ENOBUFS ) { |
---|
827 | printf("ttcp: out of buffers -- delaying\n"); /*JRS*/ |
---|
828 | delay(18000); |
---|
829 | errno = 0; |
---|
830 | goto again; |
---|
831 | } |
---|
832 | } else { |
---|
833 | cnt = write( fd, buf, count ); |
---|
834 | numCalls++; |
---|
835 | } |
---|
836 | return(cnt); |
---|
837 | } |
---|
838 | |
---|
839 | void |
---|
840 | delay(us) |
---|
841 | { |
---|
842 | struct timeval tv; |
---|
843 | |
---|
844 | tv.tv_sec = 0; |
---|
845 | tv.tv_usec = us; |
---|
846 | (void)select( 1, (fd_set *)0, (fd_set *)0, (fd_set *)0, &tv ); |
---|
847 | } |
---|
848 | |
---|
849 | /* |
---|
850 | * M R E A D |
---|
851 | * |
---|
852 | * This function performs the function of a read(II) but will |
---|
853 | * call read(II) multiple times in order to get the requested |
---|
854 | * number of characters. This can be necessary because |
---|
855 | * network connections don't deliver data with the same |
---|
856 | * grouping as it is written with. Written by Robert S. Miles, BRL. |
---|
857 | */ |
---|
858 | int |
---|
859 | mread(fd, bufp, n) |
---|
860 | int fd; |
---|
861 | register char *bufp; |
---|
862 | unsigned n; |
---|
863 | { |
---|
864 | register unsigned count = 0; |
---|
865 | register int nread; |
---|
866 | |
---|
867 | do { |
---|
868 | nread = read(fd, bufp, n-count); |
---|
869 | numCalls++; |
---|
870 | if(nread < 0) { |
---|
871 | perror("ttcp_mread"); |
---|
872 | return(-1); |
---|
873 | } |
---|
874 | if(nread == 0) |
---|
875 | return((int)count); |
---|
876 | count += (unsigned)nread; |
---|
877 | bufp += nread; |
---|
878 | } while(count < n); |
---|
879 | |
---|
880 | return((int)count); |
---|
881 | } |
---|