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annotate progressmeter.c @ 675:dfdb9d9189ff

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Server shouldn't return "localhost" in response to -R forward connections if that wasn't what the client requested.
author Matt Johnston <matt@ucc.asn.au>
date Wed, 09 May 2012 21:09:34 +0800
parents b72f98803e46
children
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1 #ifdef PROGRESS_METER
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2 /*
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3 * Copyright (c) 2003 Nils Nordman. All rights reserved.
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4 *
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5 * Redistribution and use in source and binary forms, with or without
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6 * modification, are permitted provided that the following conditions
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7 * are met:
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8 * 1. Redistributions of source code must retain the above copyright
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9 * notice, this list of conditions and the following disclaimer.
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10 * 2. Redistributions in binary form must reproduce the above copyright
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11 * notice, this list of conditions and the following disclaimer in the
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12 * documentation and/or other materials provided with the distribution.
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13 *
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14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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24 */
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25
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26 #include "includes.h"
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27 /*RCSID("$OpenBSD: progressmeter.c,v 1.24 2005/06/07 13:25:23 jaredy Exp $");*/
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28
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29 #include "progressmeter.h"
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30 #include "atomicio.h"
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31 #include "scpmisc.h"
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32
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33 #define DEFAULT_WINSIZE 80
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34 #define MAX_WINSIZE 512
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35 #define PADDING 1 /* padding between the progress indicators */
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36 #define UPDATE_INTERVAL 1 /* update the progress meter every second */
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37 #define STALL_TIME 5 /* we're stalled after this many seconds */
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38
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39 /* determines whether we can output to the terminal */
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40 static int can_output(void);
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41
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42 /* formats and inserts the specified size into the given buffer */
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43 static void format_size(char *, int, off_t);
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44 static void format_rate(char *, int, off_t);
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45
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46 /* window resizing */
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47 static void sig_winch(int);
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48 static void setscreensize(void);
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49
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50 /* updates the progressmeter to reflect the current state of the transfer */
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51 void refresh_progress_meter(void);
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52
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53 /* signal handler for updating the progress meter */
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54 static void update_progress_meter(int);
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55
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56 static time_t start; /* start progress */
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57 static time_t last_update; /* last progress update */
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58 static char *file; /* name of the file being transferred */
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59 static off_t end_pos; /* ending position of transfer */
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60 static off_t cur_pos; /* transfer position as of last refresh */
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61 static volatile off_t *counter; /* progress counter */
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62 static long stalled; /* how long we have been stalled */
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63 static int bytes_per_second; /* current speed in bytes per second */
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64 static int win_size; /* terminal window size */
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65 static volatile sig_atomic_t win_resized; /* for window resizing */
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66
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67 /* units for format_size */
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68 static const char unit[] = " KMGT";
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70 static int
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71 can_output(void)
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72 {
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73 return (getpgrp() == tcgetpgrp(STDOUT_FILENO));
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74 }
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76 static void
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77 format_rate(char *buf, int size, off_t bytes)
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78 {
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79 int i;
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80
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81 bytes *= 100;
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82 for (i = 0; bytes >= 100*1000 && unit[i] != 'T'; i++)
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83 bytes = (bytes + 512) / 1024;
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84 if (i == 0) {
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85 i++;
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86 bytes = (bytes + 512) / 1024;
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87 }
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88 snprintf(buf, size, "%3lld.%1lld%c%s",
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89 (long long) (bytes + 5) / 100,
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90 (long long) (bytes + 5) / 10 % 10,
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91 unit[i],
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92 i ? "B" : " ");
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93 }
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94
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95 static void
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96 format_size(char *buf, int size, off_t bytes)
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97 {
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98 int i;
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99
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100 for (i = 0; bytes >= 10000 && unit[i] != 'T'; i++)
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101 bytes = (bytes + 512) / 1024;
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102 snprintf(buf, size, "%4lld%c%s",
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103 (long long) bytes,
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104 unit[i],
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105 i ? "B" : " ");
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106 }
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107
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108 void
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109 refresh_progress_meter(void)
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110 {
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111 char buf[MAX_WINSIZE + 1];
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112 time_t now;
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113 off_t transferred;
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114 double elapsed;
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115 int percent;
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116 off_t bytes_left;
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117 int cur_speed;
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118 int hours, minutes, seconds;
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119 int i, len;
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120 int file_len;
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121
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122 transferred = *counter - cur_pos;
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123 cur_pos = *counter;
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124 now = time(NULL);
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125 bytes_left = end_pos - cur_pos;
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126
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127 if (bytes_left > 0)
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128 elapsed = now - last_update;
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129 else {
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130 elapsed = now - start;
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131 /* Calculate true total speed when done */
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132 transferred = end_pos;
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133 bytes_per_second = 0;
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134 }
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135
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136 /* calculate speed */
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137 if (elapsed != 0)
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138 cur_speed = (transferred / elapsed);
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139 else
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140 cur_speed = transferred;
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141
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142 #define AGE_FACTOR 0.9
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143 if (bytes_per_second != 0) {
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144 bytes_per_second = (bytes_per_second * AGE_FACTOR) +
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145 (cur_speed * (1.0 - AGE_FACTOR));
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146 } else
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147 bytes_per_second = cur_speed;
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148
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149 /* filename */
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150 buf[0] = '\0';
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parents:
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151 file_len = win_size - 35;
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parents:
diff changeset
152 if (file_len > 0) {
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parents:
diff changeset
153 len = snprintf(buf, file_len + 1, "\r%s", file);
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parents:
diff changeset
154 if (len < 0)
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155 len = 0;
287
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parents: 38
diff changeset
156 if (len >= file_len + 1)
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parents: 38
diff changeset
157 len = file_len;
4
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parents:
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158 for (i = len; i < file_len; i++ )
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
159 buf[i] = ' ';
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parents:
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160 buf[file_len] = '\0';
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parents:
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161 }
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parents:
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162
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Matt Johnston <matt@ucc.asn.au>
parents:
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163 /* percent of transfer done */
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
164 if (end_pos != 0)
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parents:
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165 percent = ((float)cur_pos / end_pos) * 100;
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parents:
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166 else
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parents:
diff changeset
167 percent = 100;
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168 snprintf(buf + strlen(buf), win_size - strlen(buf),
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
169 " %3d%% ", percent);
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parents:
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170
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
171 /* amount transferred */
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
172 format_size(buf + strlen(buf), win_size - strlen(buf),
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parents:
diff changeset
173 cur_pos);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
174 strlcat(buf, " ", win_size);
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parents:
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175
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parents:
diff changeset
176 /* bandwidth usage */
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parents:
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177 format_rate(buf + strlen(buf), win_size - strlen(buf),
287
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parents: 38
diff changeset
178 (off_t)bytes_per_second);
4
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Matt Johnston <matt@ucc.asn.au>
parents:
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179 strlcat(buf, "/s ", win_size);
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parents:
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180
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
181 /* ETA */
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
182 if (!transferred)
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
183 stalled += elapsed;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
184 else
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parents:
diff changeset
185 stalled = 0;
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parents:
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186
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
187 if (stalled >= STALL_TIME)
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diff changeset
188 strlcat(buf, "- stalled -", win_size);
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parents:
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189 else if (bytes_per_second == 0 && bytes_left)
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parents:
diff changeset
190 strlcat(buf, " --:-- ETA", win_size);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
191 else {
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
192 if (bytes_left > 0)
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
193 seconds = bytes_left / bytes_per_second;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
194 else
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
195 seconds = elapsed;
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parents:
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196
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
197 hours = seconds / 3600;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
198 seconds -= hours * 3600;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
199 minutes = seconds / 60;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
200 seconds -= minutes * 60;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
201
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
202 if (hours != 0)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
203 snprintf(buf + strlen(buf), win_size - strlen(buf),
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
204 "%d:%02d:%02d", hours, minutes, seconds);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
205 else
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
206 snprintf(buf + strlen(buf), win_size - strlen(buf),
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
207 " %02d:%02d", minutes, seconds);
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parents:
diff changeset
208
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
209 if (bytes_left > 0)
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parents:
diff changeset
210 strlcat(buf, " ETA", win_size);
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parents:
diff changeset
211 else
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
212 strlcat(buf, " ", win_size);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
213 }
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parents:
diff changeset
214
287
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
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parents: 38
diff changeset
215 atomicio(vwrite, STDOUT_FILENO, buf, win_size - 1);
4
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
216 last_update = now;
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parents:
diff changeset
217 }
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parents:
diff changeset
218
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
219 static void
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
220 update_progress_meter(int ignore)
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
221 {
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parents:
diff changeset
222 int save_errno;
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parents:
diff changeset
223
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
224 save_errno = errno;
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parents:
diff changeset
225
287
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Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
226 if (win_resized) {
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
227 setscreensize();
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
228 win_resized = 0;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
229 }
4
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parents:
diff changeset
230 if (can_output())
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parents:
diff changeset
231 refresh_progress_meter();
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parents:
diff changeset
232
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
233 signal(SIGALRM, update_progress_meter);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
234 alarm(UPDATE_INTERVAL);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
235 errno = save_errno;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
236 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
237
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
238 void
287
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
239 start_progress_meter(char *f, off_t filesize, off_t *ctr)
4
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
240 {
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
241 start = last_update = time(NULL);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
242 file = f;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
243 end_pos = filesize;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
244 cur_pos = 0;
287
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
245 counter = ctr;
4
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
246 stalled = 0;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
247 bytes_per_second = 0;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
248
287
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
249 setscreensize();
4
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
250 if (can_output())
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
251 refresh_progress_meter();
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
252
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
253 signal(SIGALRM, update_progress_meter);
287
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
254 signal(SIGWINCH, sig_winch);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
255 alarm(UPDATE_INTERVAL);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
256 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
257
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
258 void
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
259 stop_progress_meter(void)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
260 {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
261 alarm(0);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
262
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
263 if (!can_output())
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
264 return;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
265
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
266 /* Ensure we complete the progress */
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
267 if (cur_pos != end_pos)
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
268 refresh_progress_meter();
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parents:
diff changeset
269
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
270 atomicio(vwrite, STDOUT_FILENO, "\n", 1);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
271 }
287
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Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
272
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
273 static void
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Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
274 sig_winch(int sig)
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Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
275 {
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Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
276 win_resized = 1;
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Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
277 }
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Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
278
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
279 static void
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Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
280 setscreensize(void)
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Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
281 {
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Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
282 struct winsize winsize;
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Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
283
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
284 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize) != -1 &&
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
285 winsize.ws_col != 0) {
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Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
286 if (winsize.ws_col > MAX_WINSIZE)
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Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
287 win_size = MAX_WINSIZE;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
288 else
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
289 win_size = winsize.ws_col;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
290 } else
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
291 win_size = DEFAULT_WINSIZE;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
292 win_size += 1; /* trailing \0 */
b72f98803e46 Update to scp from OpenSSH portable 4.3p2
Matt Johnston <matt@ucc.asn.au>
parents: 38
diff changeset
293 }
4
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
294 #endif /* PROGRESS_METER */