Mercurial > noffle

annotate src/util.c @ 193:021d145e34e9 noffle

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[svn] * src/fetch.c: Only leave articles in the requested list if the error fetching them was fatal. Otherwise article requests will accumulate indefinitely (e.g retrieving through NNTPcache when it can't find the body of an article, now or event. Yes, this happened to me; I had nearly 2000 requests backed up and never being cleared). * src/group.c: The weekend's change introduced code that causes a bus error on Sparc ( *(time_t *)p = xxx ). Replace with a safe memcpy, and also use memcpy when reading the Entry and time items to remove warnings on Sparc compilation.
author bears
date Mon, 22 Oct 2001 14:41:43 +0100
parents 7d1f26e7c728
children 24d4cd032da5
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
186
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4 $Id: util.c 301 2001-08-05 08:27:17Z 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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125d79c9e586 [svn] * src/client.c, src/configfile.c, src/content.c, src/control.c,
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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
43
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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 #endif
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38
43
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39 static const char *
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40 nextWhiteSpace( const char *p )
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41 {
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42 while ( *p && ! isspace( *p ) )
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43 ++p;
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44 return p;
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45 }
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46
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47 static const char *
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48 nextNonWhiteSpace( const char *p )
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49 {
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50 while ( *p && isspace( *p ) )
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51 ++p;
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52 return p;
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53 }
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54
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55 const char *
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56 Utl_restOfLn( const char *line, unsigned int token )
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57 {
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58 unsigned int i;
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59 const char *p;
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60
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61 p = line;
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62 for ( i = 0; i < token; ++i )
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63 {
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64 p = nextNonWhiteSpace( p );
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65 p = nextWhiteSpace( p );
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66 }
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67 p = nextNonWhiteSpace( p );
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68 return p;
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69 }
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70
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71 const char *
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72 Utl_getLn( Str result, const char *pos )
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73 {
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74 int len = 0;
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75 const char *p = pos;
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76
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77 if ( ! p )
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78 return NULL;
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79 while ( *p != '\n' )
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80 {
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81 if ( *p == '\0' )
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82 {
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83 if ( len > 0 )
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84 Log_err( "Line not terminated by newline: '%s'", pos );
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85 return NULL;
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86 }
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87 *(result++) = *(p++);
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88 ++len;
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89 if ( len >= MAXCHAR - 1 )
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90 {
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91 *result = '\0';
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92 Log_err( "Utl_getLn: line too long: %s", result );
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93 return ++p;
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94 }
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95 }
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96 *result = '\0';
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97 return ++p;
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98
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99 }
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100
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101 const char *
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102 Utl_ungetLn( const char *str, const char *p )
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103 {
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104 if ( str == p )
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105 return FALSE;
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106 --p;
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107 if ( *p != '\n' )
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108 {
185
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109 Log_err( "Utl_ungetLn: not at beginning of line" );
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110 return NULL;
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111 }
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112 --p;
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113 while ( TRUE )
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114 {
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115 if ( p == str )
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116 return p;
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117 if ( *p == '\n' )
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118 return p + 1;
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119 --p;
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120 }
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121 }
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122
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123 const char *
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124 Utl_getHeaderLn( Str result, const char *p )
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125 {
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126 const char * res = Utl_getLn( result, p );
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diff changeset
127
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
128 /* Look for followon line if this isn't a blank line. */
109
2bedacfe1ba7 [svn] Fix header line reading buf
bears
parents: 91
diff changeset
129 if ( res != NULL && result[ 0 ] != '\0' && ! isspace( result[ 0 ] ) )
87
bf8c97460fd7 [svn] Preserve newslines and spaces in header lines
bears
parents: 59
diff changeset
130 for(;;)
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
131 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
132 Str nextLine;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
133 const char *here;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
134
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
135 here = res;
87
bf8c97460fd7 [svn] Preserve newslines and spaces in header lines
bears
parents: 59
diff changeset
136 nextLine[ 0 ] = '\0';
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
137 res = Utl_getLn( nextLine, res );
87
bf8c97460fd7 [svn] Preserve newslines and spaces in header lines
bears
parents: 59
diff changeset
138 if ( res == NULL || nextLine[ 0 ] == '\0'
109
2bedacfe1ba7 [svn] Fix header line reading buf
bears
parents: 91
diff changeset
139 || ! isspace( nextLine[ 0 ] ) )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
140 {
87
bf8c97460fd7 [svn] Preserve newslines and spaces in header lines
bears
parents: 59
diff changeset
141 res = here;
bf8c97460fd7 [svn] Preserve newslines and spaces in header lines
bears
parents: 59
diff changeset
142 break;
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
143 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
144 else
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
145 {
87
bf8c97460fd7 [svn] Preserve newslines and spaces in header lines
bears
parents: 59
diff changeset
146 Utl_catStr( result, "\n" );
bf8c97460fd7 [svn] Preserve newslines and spaces in header lines
bears
parents: 59
diff changeset
147 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
148 }
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 return res;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
152 }
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 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
155 Utl_toLower( Str line )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
156 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
157 char *p;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
158
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
159 p = line;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
160 while ( *p )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
161 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
162 *p = tolower( *p );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
163 ++p;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
164 }
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 char *
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
168 Utl_stripWhiteSpace( char *line )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
169 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
170 char *p;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
171
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
172 while ( isspace( *line ) )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
173 ++line;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
174 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
175 while ( isspace( *p ) )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
176 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
177 *p = '\0';
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
178 --p;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
179 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
180 return line;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
181 }
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 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
184 Utl_stripComment( char *line )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
185 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
186 for ( ; *line != '\0'; line++ )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
187 if ( *line =='#' )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
188 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
189 *line = '\0';
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
190 break;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
191 }
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 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
195 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
196 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
197 dst[ 0 ] = '\0';
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
198 strncat( dst, src, MAXCHAR );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
199 }
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 void
59
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
202 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
203 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
204 if ( n > MAXCHAR )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
205 n = MAXCHAR;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
206 dst[ 0 ] = '\0';
59
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
207 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
208 }
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 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
211 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
212 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
213 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
214 }
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 void
59
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
217 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
218 {
59
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
219 size_t un;
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
220
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
221 ASSERT( n >= 0 );
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
222 un = (size_t)n;
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
223 if ( un > MAXCHAR - strlen( dst ) )
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
224 un = MAXCHAR - strlen( dst );
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
225 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
226 }
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 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
229 Utl_stamp( Str file )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
230 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
231 FILE *f;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
232 time_t t;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
233
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
234 time( &t );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
235 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
236 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
237 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
238 file, strerror( errno ) );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
239 return;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
240 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
241 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
242 fclose( f );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
243 }
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 Bool
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
246 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
247 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
248 FILE *f;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
249
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
250 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
251 return FALSE;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
252 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
253 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
254 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
255 fclose( f );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
256 return FALSE;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
257 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
258 fclose( f );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
259 return TRUE;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
260 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
261
91
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262 static const char *DOTW[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri",
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263 "Sat", NULL };
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264 static const char *MON[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul",
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265 "Aug", "Sep", "Oct", "Nov", "Dec", NULL };
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266
127
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267 /*
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268 * Calculate the difference between local time and GMT. This is INN's
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269 * 'always-works' method. It assumes the time differences is < 24hrs.
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270 * Sounds reasonable to me. It also assumes it can ignore seconds.
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271 * Returns GMT - localtime minutes. It will also trash the localtime/
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272 * gmtime/etc. static buffer.
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273 */
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274 static int
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275 tzDiff( void )
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276 {
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277 time_t now;
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278 struct tm local, gmt, *tm;
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279 static time_t nextCalc = 0;
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280 static int res = 0;
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281
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282 now = time( NULL );
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283 if ( now < nextCalc )
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284 return res;
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285
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286 tm = localtime( &now );
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287 if ( tm == NULL )
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288 return 0;
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289 local = *tm;
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290 tm = gmtime( &now );
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291 if ( tm == NULL )
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292 return 0;
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293 gmt = *tm;
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294
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295 res = gmt.tm_yday - local.tm_yday;
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296 if ( res < -1 )
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297 res = -1; /* Year rollover? */
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298 else if ( res > 1 )
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299 res = 1;
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300
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301 res *= 24;
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302 res += gmt.tm_hour - local.tm_hour;
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303 res *= 60;
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304 res += gmt.tm_min - local.tm_min;
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305
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306 /* Need to recalc at start of next hour */
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307 nextCalc = now + ( 60 - local.tm_sec ) + 60 * ( 59 - local.tm_min );
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308
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309 return res;
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310 }
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311
43
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312 void
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313 Utl_newsDate( time_t t, Str res )
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314 {
127
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315 struct tm *local;
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316 long tzdiff, hoffset, moffset;
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317
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318 tzdiff = - tzDiff();
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319
127
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320 local = localtime( &t );
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321 if ( local == NULL )
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322 {
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323 Utl_cpyStr( res, "** localtime failure **" );
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324 return;
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325 }
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326
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327 hoffset = tzdiff / 60;
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328 moffset = tzdiff % 60;
127
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329 if ( moffset < 0 )
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330 moffset = - moffset;
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331
127
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332 sprintf( res, "%s, %d %s %4d %02d:%02d:%02d %+03ld%02ld",
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333 DOTW[local->tm_wday], local->tm_mday,
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334 MON[local->tm_mon], local->tm_year + 1900,
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335 local->tm_hour, local->tm_min, local->tm_sec,
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336 hoffset, moffset );
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337 }
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338
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339 time_t
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340 Utl_parseNewsDate( const char *s )
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341 {
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342 struct tm tm;
127
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343 int wday, offset, tzoffset;
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344 char *p;
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345 time_t res;
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346
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347 memset( &tm, 0, sizeof( tm ) );
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348 wday = -1;
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349 tm.tm_isdst = -1;
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350
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351 s = nextNonWhiteSpace( s );
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352
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353 /* Is this the day number, or a weekday? */
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354 if ( ! isdigit( *s ) )
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355 {
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356 if ( strlen( s ) < 4 )
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357 return (time_t) -1;
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358
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359 for ( wday = 0; DOTW[ wday ] != NULL; wday++ )
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360 if ( strncasecmp( DOTW[ wday ], s, 3 ) == 0 )
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361 break;
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362
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363 if( DOTW[ wday ] == NULL || s[3] != ',' )
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364 return (time_t) -1;
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365
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366 s += 4;
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367 }
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368
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369 /* Get the day number */
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370 tm.tm_mday = (int) strtol( s, &p, 10 );
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371 if ( p == s )
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372 return (time_t) -1;
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373 s = p;
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374
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375 /* Look for month name */
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376 s = nextNonWhiteSpace( s );
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377 if ( strlen( s ) < 4 )
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378 return (time_t) -1;
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379 for ( tm.tm_mon = 0; MON[ tm.tm_mon ] != NULL; tm.tm_mon++ )
186
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380 if ( strncasecmp( MON[ tm.tm_mon ], s, 3 ) == 0 )
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381 break;
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382
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383 if ( MON[ tm.tm_mon ] == NULL )
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384 return (time_t) -1;
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385 s += 3;
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386
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387 /* Year next */
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388 tm.tm_year = (int) strtol( s, &p, 10 );
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389 if ( p == s || ( tm.tm_year >= 100 && tm.tm_year < 1900 ) )
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390 return (time_t) -1;
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391 if ( tm.tm_year >= 1900 )
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392 tm.tm_year -= 1900;
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393 s = p;
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394
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395 /* Hours */
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396 tm.tm_hour = (int) strtol( s, &p, 10 );
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397 if ( p == s || *p != ':' )
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398 return (time_t) -1;
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399 s = ++p;
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400
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401 /* Minutes */
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402 tm.tm_min = (int) strtol( s, &p, 10 );
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403 if ( p == s || ( *p != ':' && *p != ' ' ) )
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404 return (time_t) -1;
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405 s = p;
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406
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407 /* Seconds */
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408 if ( *s == ':' )
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409 {
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410 s++;
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411 tm.tm_sec = (int) strtol( s, &p, 10 );
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412 if ( p == s )
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413 return (time_t) -1;
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414 s = p;
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415 }
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416
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417 /* GMT/UT or timezone offset */
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418 tzoffset = 0;
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419 while ( isspace( *s ) )
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420 s++;
186
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421 if ( strncasecmp( s, "GMT", 3) == 0 )
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422 s += 3;
186
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423 else if ( strncasecmp( s, "UT", 2 ) == 0 )
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424 s += 2;
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425 else
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426 {
127
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427 offset = (int) strtol( s, &p, 10 );
91
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428 s = p;
127
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429 tzoffset = ( offset / 100 ) * 60 + ( offset % 100 );
91
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430 }
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431
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432 /* Check for following junk */
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diff changeset
433 if ( *s != '\0' && ! isspace( *s ) )
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434 return (time_t) -1;
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diff changeset
435
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436 res = mktime( &tm );
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437 if ( res == (time_t) -1 )
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438 return res;
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439
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440 if ( wday >= 0 && wday != tm.tm_wday )
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441 return (time_t) -1;
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442
127
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443 /* Remove local time diff from res to give time as if GMT */
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444 res -= tzDiff() * 60;
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445
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446 /* And now adjust for tzoffset */
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447 res -= tzoffset * 60;
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448
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449 return res;
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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450 }
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 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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453 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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454 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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455 int len = strlen( src );
45
32ba1198c6fa [svn] * Makefile.in, configure, configure.in, docs/Makefile.in, src/Makefile.in:
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456 if ( ! ( *dst = malloc( (size_t)len + 1 ) ) )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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457 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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458 Log_err( "Cannot allocate string with length %lu", strlen( src ) );
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459 exit( EXIT_FAILURE );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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460 }
45
32ba1198c6fa [svn] * Makefile.in, configure, configure.in, docs/Makefile.in, src/Makefile.in:
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461 memcpy( *dst, src, (size_t)len + 1 );
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
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462 }
91
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463
164
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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464 sig_t
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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465 Utl_installSignalHandler( int sig, sig_t handler )
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466 {
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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467 struct sigaction act, oldAct;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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468
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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469 act.sa_handler = handler;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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470 sigemptyset( &act.sa_mask );
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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471 act.sa_flags = 0;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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472 if ( sig != SIGALRM )
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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473 act.sa_flags |= SA_RESTART;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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474 if ( sigaction( sig, &act, &oldAct ) < 0 )
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475 return SIG_ERR;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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476 return oldAct.sa_handler;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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477 }
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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478
91
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479 #if defined(UTIL_TEST)
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480
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481 /* Test code borrowed from wildmat.c. Yep, still uses gets(). */
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482 extern char *gets();
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483
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484 int
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485 main()
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486 {
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487 Str line;
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488 time_t t;
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489
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490 printf( "Util date tester. Enter date to test.\n" );
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491 printf( "A blank line exits the program.\n" );
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492
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493 for ( ; ; )
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494 {
127
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diff changeset
495 t = time( NULL );
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496 Utl_newsDate( t, line );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
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497 printf( "\n(%s) Enter date: ", line );
91
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498 (void) fflush( stdout );
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499 if ( gets( line ) == NULL || line[0] == '\0' )
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500 break;
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501
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502 t = Utl_parseNewsDate( line );
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503 if ( t == (time_t) -1 )
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504 printf( "Date parse failed\n" );
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505 else
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506 {
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507 Utl_newsDate( t, line );
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
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508 printf( "Utl_newsDate -> '%s'\n", line );
91
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509 }
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510 }
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511
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512 exit(0);
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513 /* NOTREACHED */
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514 }
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515 #endif