annotate netinstall/nio-ftp.cc @ 1318:b531bf8658e9

[xemacs-hg @ 2003-02-21 06:56:46 by ben] redisplay fixes et al. PROBLEMS: Add comment about Cygwin, unexec and sysmalloc. Move some non-general stuff out of general. Make a section for x86. configure.in: Add check for broken alloca in funcalls. mule/mule-cmds.el: Alias file-name to native not vice-versa. Do set EOL of native but not of process output to fix various problems and be consistent with code-init.el. code-cmds.el: Return a name not a coding system. code-init.el: Reindent. Remove `file-name' since it should always be the same as native. unicode.el: Rename to load-unicode-mapping-table as suggested by the anonymous (but rather Turnbullian) comment in unicode.c. xemacs.dsp: Add /k to default build. alloc.c: Make gc_currently_forbidden static. config.h.in, lisp.h: Move some stuff to lisp.h. console-gtk.h, console-impl.h, console-msw.h, console-x.h, event-Xt.c, event-msw.c, redisplay-gtk.c, redisplay-msw.c, redisplay-output.c, redisplay-x.c, gtk-xemacs.c: Remove duplicated code to redraw exposed area. Add deadbox method needed by the generalized redraw code. Defer redrawing if already in redisplay. frame-msw.c, event-stream.c, frame.c: Add comments about calling Lisp. debug.c, general-slots.h: Move generalish symbols to general-slots.h. doprnt.c: reindent. lisp.h, dynarr.c: Add debug code for locking a dynarr to catch invalid mods. Use in redisplay.c. eval.c: file-coding.c: Define file-name as alias for native not vice-versa. frame-gtk.c, frame-x.c: Move Qwindow_id to general-slots. dialog-msw.c, glyphs-gtk.c, glyphs-msw.c, glyphs-widget.c, glyphs-x.c, gui.c, gui.h, menubar-msw.c, menubar.c: Ensure that various glyph functions that eval within redisplay protect the evals. Same for calls to internal_equal(). Modify various functions, e.g. gui_item_*(), to protect evals within redisplay, taking an in_redisplay parameter if it's possible for them to be called both inside and outside of redisplay. gutter.c: Defer specifier-changed updating till after redisplay, if necessary, since we need to enter redisplay to do it. gutter.c: Do nothing if in redisplay. lisp.h: Add version of alloca() for use in function calls. lisp.h: Add XCAD[D+]R up to 6 D's, and aliases X1ST, X2ND, etc. frame.c, frame.h, redisplay.c, redisplay.h, signal.c, toolbar.c: Redo critical-section code and move from frame.c to redisplay.c. Require that every place inside of redisplay catch errors itself, not at the edge of the critical section (thereby bypassing the rest of redisplay and leaving things in an inconsistent state). Introduce separate means of holding frame-size changes without entering a complete critical section. Introduce "post-redisplay" methods for deferring things till after redisplay. Abort if we enter redisplay reentrantly. Disable all quit checking in redisplay since it's too dangerous. Ensure that all calls to QUIT trigger an abort if unprotected. redisplay.c, scrollbar-gtk.c, scrollbar-x.c, scrollbar.c: Create enter/exit_redisplay_critical_section_maybe() for code that needs to ensure it's in a critical section but doesn't interfere with an existing critical section. sysdep.c: Use _wexecve() when under Windows NT for Unicode correctness. text.c, text.h: Add new_dfc() functions, which return an alloca()ed value rather than requiring an lvalue. (Not really used yet; used in another workspace, to come.) Add some macros for SIZED_EXTERNAL. Update the encoding aliases after involved scrutinization of the X manual. unicode.c: Answer the anonymous but suspiciously Turnbullian questions. Rename parse-unicode-translation-table to load-unicode-mapping-table, as suggested.
author ben
date Fri, 21 Feb 2003 06:57:21 +0000
parents 42a8626b741e
children
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1 /*
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2 * Copyright (c) 2000, Red Hat, Inc.
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; either version 2 of the License, or
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7 * (at your option) any later version.
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8 *
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9 * A copy of the GNU General Public License can be found at
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10 * http://www.gnu.org/
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11 *
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12 * Written by DJ Delorie <dj@cygnus.com>
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13 *
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14 */
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15
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16 /* This file is responsible for implementing all direct FTP protocol
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17 channels. It is intentionally simplistic. */
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18
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19 #include "win32.h"
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20 #include "winsock.h"
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21 #include <stdio.h>
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22 #include <stdlib.h>
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23 #include <ctype.h>
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24
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25 #include "resource.h"
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26 #include "state.h"
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27 #include "simpsock.h"
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28 #include "log.h"
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29
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30 #include "netio.h"
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31 #include "nio-ftp.h"
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32
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33 static SimpleSocket *cmd = 0;
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34 static char *cmd_host = 0;
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35 static int cmd_port = 0;
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36
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37 static char *last_line;
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38
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39 static int
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40 ftp_line (SimpleSocket *s)
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41 {
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42 do {
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43 last_line = s->gets ();
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44 log (LOG_BABBLE, "ftp > %s", last_line);
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45 } while (last_line && (!isdigit (last_line[0]) || last_line[3] != ' '));
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46 return atoi (last_line ?: "0");
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47 }
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48
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49 NetIO_FTP::NetIO_FTP (char *Purl)
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50 : NetIO (Purl)
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51 {
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52 s = 0;
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53 int code;
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54
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55 if (port == 0)
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56 port = 21;
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57
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58 if (cmd_host && strcmp (host, cmd_host) != 0 || port != cmd_port)
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59 {
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60 if (cmd)
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61 cmd->printf ("QUIT\r\n");
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62 delete cmd;
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63 free (cmd_host);
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64 cmd = 0;
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65 cmd_host = 0;
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66 }
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67
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68 if (cmd == 0)
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69 {
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70 SimpleSocket *c = new SimpleSocket (host, port);
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71 code = ftp_line (c);
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72 c->printf ("USER anonymous\r\n");
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73 code = ftp_line (c);
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74 if (code == 331)
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75 {
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76 c->printf ("PASS xemacs-setup@\r\n");
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77 code = ftp_line (c);
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78 }
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79
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80 if (code < 200 || code >= 300)
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81 {
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82 delete c;
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83 return;
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84 }
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85
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86 cmd = c;
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87 cmd_host = _strdup (host);
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88 cmd_port = port;
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89
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90 cmd->printf ("TYPE I\r\n");
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91 code = ftp_line (cmd);
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92 }
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93
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94 cmd->printf ("PASV\r\n");
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95 do {
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96 code = ftp_line (cmd);
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97 } while (code == 226); /* previous RETR */
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98 if (code != 227)
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99 return;
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100
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101 char *paren = strchr (last_line, '(');
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102 if (!paren)
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103 return;
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104
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105 int i1, i2, i3, i4, p1, p2;
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106 sscanf (paren+1, "%d,%d,%d,%d,%d,%d", &i1, &i2, &i3, &i4, &p1, &p2);
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107 char tmp[20];
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108 sprintf (tmp, "%d.%d.%d.%d", i1, i2, i3, i4);
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109 s = new SimpleSocket (tmp, p1*256 + p2);
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110
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111 cmd->printf ("RETR %s\r\n", path);
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112 code = ftp_line (cmd);
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113 if (code != 150)
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114 {
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115 delete s;
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116 s = 0;
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117 return;
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118 }
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119 }
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120
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121 NetIO_FTP::~NetIO_FTP ()
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122 {
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123 if (s)
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124 delete s;
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125 }
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126
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127 int
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128 NetIO_FTP::ok ()
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129 {
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130 if (s)
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131 return 1;
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132 return 0;
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133 }
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134
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135 int
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136 NetIO_FTP::read (char *buf, int nbytes)
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137 {
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138 if (!s)
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139 return 0;
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140 return s->read (buf, nbytes);
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141 }