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annotate src/util.c @ 164:94f2e5607772 noffle

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[svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up repeated signal handler setting code into Utl_installSignalHandler. * src/client.c: Ensure Client_retrieveArt always exits with the global lock held. Previously it would be held on error, not held if OK.
author bears
date Thu, 25 Jan 2001 11:00:03 +0000
parents 3c71e28c8eef
children fed1334d766b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
43
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1 /*
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2 util.c
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3
164
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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4 $Id: util.c 248 2001-01-25 11:00:03Z bears $
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5 */
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6
45
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7 #if HAVE_CONFIG_H
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8 #include <config.h>
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9 #endif
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10
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11 #if TIME_WITH_SYS_TIME
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12 #include <sys/time.h>
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13 #include <time.h>
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14 #else
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15 #if HAVE_SYS_TIME_H
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16 #include <sys/time.h>
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17 #else
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18 #include <time.h>
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19 #endif
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20 #endif
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21
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22 #include "util.h"
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23 #include <errno.h>
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24 #include <ctype.h>
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25 #include <sys/types.h>
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26 #include <sys/stat.h>
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27 #include <fcntl.h>
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28 #include <stdlib.h>
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29 #include <unistd.h>
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30 #include "configfile.h"
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31 #include "log.h"
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32 #include "wildmat.h"
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33 #include "portable.h"
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34
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35 #if defined(UTIL_TEST)
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36 #define Log_err printf
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37 #define Log_dbg printf
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38 #endif
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39
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40 static const char *
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41 nextWhiteSpace( const char *p )
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42 {
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43 while ( *p && ! isspace( *p ) )
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44 ++p;
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45 return p;
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46 }
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47
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48 static const char *
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49 nextNonWhiteSpace( const char *p )
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50 {
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51 while ( *p && isspace( *p ) )
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52 ++p;
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53 return p;
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54 }
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55
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56 const char *
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57 Utl_restOfLn( const char *line, unsigned int token )
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58 {
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59 unsigned int i;
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60 const char *p;
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61
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62 p = line;
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63 for ( i = 0; i < token; ++i )
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64 {
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65 p = nextNonWhiteSpace( p );
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66 p = nextWhiteSpace( p );
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67 }
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68 p = nextNonWhiteSpace( p );
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69 return p;
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70 }
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71
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72 const char *
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73 Utl_getLn( Str result, const char *pos )
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74 {
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75 int len = 0;
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76 const char *p = pos;
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77
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78 if ( ! p )
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79 return NULL;
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80 while ( *p != '\n' )
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81 {
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82 if ( *p == '\0' )
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83 {
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84 if ( len > 0 )
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85 Log_err( "Line not terminated by newline: '%s'", pos );
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86 return NULL;
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87 }
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88 *(result++) = *(p++);
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89 ++len;
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90 if ( len >= MAXCHAR - 1 )
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91 {
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92 *result = '\0';
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93 Log_err( "Utl_getLn: line too long: %s", result );
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94 return ++p;
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95 }
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96 }
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97 *result = '\0';
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98 return ++p;
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99
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100 }
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101
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102 const char *
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103 Utl_ungetLn( const char *str, const char *p )
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104 {
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105 if ( str == p )
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106 return FALSE;
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107 --p;
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108 if ( *p != '\n' )
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109 {
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110 Log_dbg( "Utl_ungetLn: not at beginning of line" );
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111 return NULL;
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112 }
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113 --p;
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114 while ( TRUE )
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115 {
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116 if ( p == str )
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117 return p;
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118 if ( *p == '\n' )
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119 return p + 1;
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120 --p;
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121 }
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122 }
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123
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124 const char *
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125 Utl_getHeaderLn( Str result, const char *p )
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126 {
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127 const char * res = Utl_getLn( result, p );
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diff changeset
128
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
129 /* Look for followon line if this isn't a blank line. */
109
2bedacfe1ba7 [svn] Fix header line reading buf
bears
parents: 91
diff changeset
130 if ( res != NULL && result[ 0 ] != '\0' && ! isspace( result[ 0 ] ) )
87
bf8c97460fd7 [svn] Preserve newslines and spaces in header lines
bears
parents: 59
diff changeset
131 for(;;)
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
132 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
133 Str nextLine;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
134 const char *here;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
135
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
136 here = res;
87
bf8c97460fd7 [svn] Preserve newslines and spaces in header lines
bears
parents: 59
diff changeset
137 nextLine[ 0 ] = '\0';
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
138 res = Utl_getLn( nextLine, res );
87
bf8c97460fd7 [svn] Preserve newslines and spaces in header lines
bears
parents: 59
diff changeset
139 if ( res == NULL || nextLine[ 0 ] == '\0'
109
2bedacfe1ba7 [svn] Fix header line reading buf
bears
parents: 91
diff changeset
140 || ! isspace( nextLine[ 0 ] ) )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
141 {
87
bf8c97460fd7 [svn] Preserve newslines and spaces in header lines
bears
parents: 59
diff changeset
142 res = here;
bf8c97460fd7 [svn] Preserve newslines and spaces in header lines
bears
parents: 59
diff changeset
143 break;
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
144 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
145 else
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
146 {
87
bf8c97460fd7 [svn] Preserve newslines and spaces in header lines
bears
parents: 59
diff changeset
147 Utl_catStr( result, "\n" );
bf8c97460fd7 [svn] Preserve newslines and spaces in header lines
bears
parents: 59
diff changeset
148 Utl_catStr( result, nextLine );
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
149 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
150 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
151
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
152 return res;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
153 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
154
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
155 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
156 Utl_toLower( Str line )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
157 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
158 char *p;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
159
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
160 p = line;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
161 while ( *p )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
162 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
163 *p = tolower( *p );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
164 ++p;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
165 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
166 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
167
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
168 char *
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
169 Utl_stripWhiteSpace( char *line )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
170 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
171 char *p;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
172
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
173 while ( isspace( *line ) )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
174 ++line;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
175 p = line + strlen( line ) - 1;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
176 while ( isspace( *p ) )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
177 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
178 *p = '\0';
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
179 --p;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
180 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
181 return line;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
182 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
183
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
184 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
185 Utl_stripComment( char *line )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
186 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
187 for ( ; *line != '\0'; line++ )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
188 if ( *line =='#' )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
189 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
190 *line = '\0';
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
191 break;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
192 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
193 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
194
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
195 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
196 Utl_cpyStr( Str dst, const char *src )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
197 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
198 dst[ 0 ] = '\0';
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
199 strncat( dst, src, MAXCHAR );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
200 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
201
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
202 void
59
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
203 Utl_cpyStrN( Str dst, const char *src, int n )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
204 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
205 if ( n > MAXCHAR )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
206 n = MAXCHAR;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
207 dst[ 0 ] = '\0';
59
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
208 strncat( dst, src, (size_t)n );
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
209 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
210
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
211 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
212 Utl_catStr( Str dst, const char *src )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
213 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
214 strncat( dst, src, MAXCHAR - strlen( dst ) );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
215 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
216
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
217 void
59
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
218 Utl_catStrN( Str dst, const char *src, int n )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
219 {
59
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
220 size_t un;
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
221
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
222 ASSERT( n >= 0 );
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
223 un = (size_t)n;
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
224 if ( un > MAXCHAR - strlen( dst ) )
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
225 un = MAXCHAR - strlen( dst );
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
226 strncat( dst, src, un );
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
227 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
228
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
229 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
230 Utl_stamp( Str file )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
231 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
232 FILE *f;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
233 time_t t;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
234
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
235 time( &t );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
236 if ( ! ( f = fopen( file, "w" ) ) )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
237 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
238 Log_err( "Could not open %s for writing (%s)",
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
239 file, strerror( errno ) );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
240 return;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
241 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
242 fprintf( f, "%lu\n", t );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
243 fclose( f );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
244 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
245
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
246 Bool
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
247 Utl_getStamp( time_t *result, Str file )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
248 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
249 FILE *f;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
250
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
251 if ( ! ( f = fopen( file, "r" ) ) )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
252 return FALSE;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
253 if ( fscanf( f, "%lu", result ) != 1 )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
254 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
255 Log_err( "File %s corrupted", file );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
256 fclose( f );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
257 return FALSE;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
258 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
259 fclose( f );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
260 return TRUE;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
261 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
262
91
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263 static const char *DOTW[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri",
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264 "Sat", NULL };
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265 static const char *MON[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul",
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266 "Aug", "Sep", "Oct", "Nov", "Dec", NULL };
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267
127
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268 /*
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269 * Calculate the difference between local time and GMT. This is INN's
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270 * 'always-works' method. It assumes the time differences is < 24hrs.
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271 * Sounds reasonable to me. It also assumes it can ignore seconds.
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272 * Returns GMT - localtime minutes. It will also trash the localtime/
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273 * gmtime/etc. static buffer.
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274 */
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275 static int
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276 tzDiff( void )
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277 {
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278 time_t now;
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279 struct tm local, gmt, *tm;
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280 static time_t nextCalc = 0;
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281 static int res = 0;
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282
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283 now = time( NULL );
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284 if ( now < nextCalc )
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285 return res;
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286
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287 tm = localtime( &now );
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288 if ( tm == NULL )
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289 return 0;
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290 local = *tm;
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291 tm = gmtime( &now );
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292 if ( tm == NULL )
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293 return 0;
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294 gmt = *tm;
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295
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296 res = gmt.tm_yday - local.tm_yday;
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297 if ( res < -1 )
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298 res = -1; /* Year rollover? */
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299 else if ( res > 1 )
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300 res = 1;
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301
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302 res *= 24;
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303 res += gmt.tm_hour - local.tm_hour;
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304 res *= 60;
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305 res += gmt.tm_min - local.tm_min;
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306
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307 /* Need to recalc at start of next hour */
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308 nextCalc = now + ( 60 - local.tm_sec ) + 60 * ( 59 - local.tm_min );
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309
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310 return res;
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311 }
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312
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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313 void
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314 Utl_newsDate( time_t t, Str res )
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315 {
127
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316 struct tm *local;
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317 long tzdiff, hoffset, moffset;
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318
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319 tzdiff = - tzDiff();
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320
127
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321 local = localtime( &t );
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322 if ( local == NULL )
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323 {
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324 Utl_cpyStr( res, "** localtime failure **" );
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325 return;
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326 }
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327
91
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328 hoffset = tzdiff / 60;
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329 moffset = tzdiff % 60;
127
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330 if ( moffset < 0 )
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331 moffset = - moffset;
91
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332
127
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333 sprintf( res, "%s, %d %s %4d %02d:%02d:%02d %+03ld%02ld",
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334 DOTW[local->tm_wday], local->tm_mday,
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335 MON[local->tm_mon], local->tm_year + 1900,
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336 local->tm_hour, local->tm_min, local->tm_sec,
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337 hoffset, moffset );
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338 }
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339
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340 time_t
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341 Utl_parseNewsDate( const char *s )
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342 {
91
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343 struct tm tm;
127
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344 int wday, offset, tzoffset;
91
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345 char *p;
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346 time_t res;
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347
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348 memset( &tm, 0, sizeof( tm ) );
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349 wday = -1;
127
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350 tm.tm_isdst = -1;
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351
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352 s = nextNonWhiteSpace( s );
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353
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354 /* Is this the day number, or a weekday? */
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355 if ( ! isdigit( *s ) )
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356 {
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357 if ( strlen( s ) < 4 )
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358 return (time_t) -1;
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359
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360 for ( wday = 0; DOTW[ wday ] != NULL; wday++ )
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361 if ( strncmp( DOTW[ wday ], s, 3 ) == 0 )
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362 break;
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363
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364 if( DOTW[ wday ] == NULL || s[3] != ',' )
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365 return (time_t) -1;
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366
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367 s += 4;
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368 }
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369
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370 /* Get the day number */
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371 tm.tm_mday = (int) strtol( s, &p, 10 );
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372 if ( p == s )
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373 return (time_t) -1;
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374 s = p;
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375
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376 /* Look for month name */
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377 s = nextNonWhiteSpace( s );
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378 if ( strlen( s ) < 4 )
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379 return (time_t) -1;
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380 for ( tm.tm_mon = 0; MON[ tm.tm_mon ] != NULL; tm.tm_mon++ )
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381 if ( strncmp( MON[ tm.tm_mon ], s, 3 ) == 0 )
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382 break;
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383
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384 if ( MON[ tm.tm_mon ] == NULL )
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385 return (time_t) -1;
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386 s += 3;
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387
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388 /* Year next */
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389 tm.tm_year = (int) strtol( s, &p, 10 );
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390 if ( p == s || ( tm.tm_year >= 100 && tm.tm_year < 1900 ) )
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391 return (time_t) -1;
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392 if ( tm.tm_year >= 1900 )
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393 tm.tm_year -= 1900;
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394 s = p;
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395
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diff changeset
396 /* Hours */
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397 tm.tm_hour = (int) strtol( s, &p, 10 );
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398 if ( p == s || *p != ':' )
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399 return (time_t) -1;
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400 s = ++p;
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401
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diff changeset
402 /* Minutes */
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403 tm.tm_min = (int) strtol( s, &p, 10 );
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404 if ( p == s || ( *p != ':' && *p != ' ' ) )
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405 return (time_t) -1;
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406 s = p;
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407
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diff changeset
408 /* Seconds */
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diff changeset
409 if ( *s == ':' )
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diff changeset
410 {
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diff changeset
411 s++;
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412 tm.tm_sec = (int) strtol( s, &p, 10 );
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diff changeset
413 if ( p == s )
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414 return (time_t) -1;
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415 s = p;
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416 }
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417
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diff changeset
418 /* GMT/UT or timezone offset */
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419 tzoffset = 0;
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420 while ( isspace( *s ) )
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421 s++;
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422 if ( strncmp( s, "GMT", 3) == 0 )
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423 s += 3;
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424 else if ( strncmp( s, "UT", 2 ) == 0 )
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425 s += 2;
93cc929329eb [svn] Date output change and now date parsing
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426 else
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427 {
127
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diff changeset
428 offset = (int) strtol( s, &p, 10 );
91
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diff changeset
429 s = p;
127
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diff changeset
430 tzoffset = ( offset / 100 ) * 60 + ( offset % 100 );
91
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diff changeset
431 }
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432
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diff changeset
433 /* Check for following junk */
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diff changeset
434 if ( *s != '\0' && ! isspace( *s ) )
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435 return (time_t) -1;
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diff changeset
436
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diff changeset
437 res = mktime( &tm );
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diff changeset
438 if ( res == (time_t) -1 )
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diff changeset
439 return res;
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440
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441 if ( wday >= 0 && wday != tm.tm_wday )
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442 return (time_t) -1;
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443
127
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444 /* Remove local time diff from res to give time as if GMT */
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445 res -= tzDiff() * 60;
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446
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447 /* And now adjust for tzoffset */
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448 res -= tzoffset * 60;
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449
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450 return res;
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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451 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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452
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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453 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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454 Utl_allocAndCpy( char **dst, const char *src )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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455 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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456 int len = strlen( src );
45
32ba1198c6fa [svn] * Makefile.in, configure, configure.in, docs/Makefile.in, src/Makefile.in:
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457 if ( ! ( *dst = malloc( (size_t)len + 1 ) ) )
43
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458 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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459 Log_err( "Cannot allocate string with length %lu", strlen( src ) );
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460 exit( EXIT_FAILURE );
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461 }
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32ba1198c6fa [svn] * Makefile.in, configure, configure.in, docs/Makefile.in, src/Makefile.in:
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462 memcpy( *dst, src, (size_t)len + 1 );
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2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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463 }
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464
164
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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465 sig_t
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466 Utl_installSignalHandler( int sig, sig_t handler )
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467 {
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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468 struct sigaction act, oldAct;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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469
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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470 act.sa_handler = handler;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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471 sigemptyset( &act.sa_mask );
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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472 act.sa_flags = 0;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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473 if ( sig != SIGALRM )
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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474 act.sa_flags |= SA_RESTART;
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475 if ( sigaction( sig, &act, &oldAct ) < 0 )
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476 return SIG_ERR;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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477 return oldAct.sa_handler;
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478 }
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479
91
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480 #if defined(UTIL_TEST)
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481
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482 /* Test code borrowed from wildmat.c. Yep, still uses gets(). */
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483 extern char *gets();
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484
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485 int
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486 main()
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487 {
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488 Str line;
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489 time_t t;
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490
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491 printf( "Util date tester. Enter date to test.\n" );
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492 printf( "A blank line exits the program.\n" );
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493
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494 for ( ; ; )
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495 {
127
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496 t = time( NULL );
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497 Utl_newsDate( t, line );
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498 printf( "\n(%s) Enter date: ", line );
91
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499 (void) fflush( stdout );
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500 if ( gets( line ) == NULL || line[0] == '\0' )
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501 break;
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502
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503 t = Utl_parseNewsDate( line );
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504 if ( t == (time_t) -1 )
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505 printf( "Date parse failed\n" );
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506 else
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507 {
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508 Utl_newsDate( t, line );
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
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509 printf( "Utl_newsDate -> '%s'\n", line );
91
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510 }
93cc929329eb [svn] Date output change and now date parsing
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511 }
93cc929329eb [svn] Date output change and now date parsing
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512
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513 exit(0);
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514 /* NOTREACHED */
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515 }
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516 #endif