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annotate src/util.c @ 223:ffb1848a39db noffle

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[svn] * src/util.c: Improve (correct) error detection when updating timestamp file. * src/content.h, src/content.c: Return Boolean success/fail from Cont_write. Also ensure cont.first isn't polluted in the event of a failed update. * src/client.c,src/control.c,src/fetch.c,src/noffle.c,src/post.c, src/pseudo.c: If Cont_write fails, don't do actions that need it to have worked. Typically, don't update first and last article numbers in group database. * src/server.c: If groupinfo.lastupdate is unreadable or corrupt, spot this and report it and give an explicit error when processing NNTP NEWGROUPS command.
author bears
date Sun, 09 Dec 2001 12:31:57 +0000
parents eb2589384836
children fbff73fe5b40
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
223
ffb1848a39db [svn] * src/util.c: Improve (correct) error detection when updating
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4 $Id: util.c 342 2001-12-09 12:31:57Z 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 <errno.h>
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23 #include <ctype.h>
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24 #include <sys/types.h>
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25 #include <sys/stat.h>
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26 #include <fcntl.h>
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27 #include <stdlib.h>
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28 #include <unistd.h>
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29 #include "configfile.h"
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30 #include "log.h"
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31 #include "portable.h"
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32 #include "util.h"
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33 #include "wildmat.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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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 {
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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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127 Bool not_too_long_header = TRUE;
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
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 {
202
mirkol
parents: 197
diff changeset
147 if ( not_too_long_header &&
mirkol
parents: 197
diff changeset
148 ( MAXCHAR > ( strlen( result ) + strlen( nextLine ) + 1 ) ) )
mirkol
parents: 197
diff changeset
149 {
mirkol
parents: 197
diff changeset
150 Utl_catStr( result, "\n" );
mirkol
parents: 197
diff changeset
151 Utl_catStr( result, nextLine );
mirkol
parents: 197
diff changeset
152 }
mirkol
parents: 197
diff changeset
153 else
mirkol
parents: 197
diff changeset
154 {
mirkol
parents: 197
diff changeset
155 Log_err( "Utl_getHeaderLn: skipped continued header: %s", nextLine );
mirkol
parents: 197
diff changeset
156 not_too_long_header = FALSE;
mirkol
parents: 197
diff changeset
157 /* Now let poor little noffle skip the header continuations. */
mirkol
parents: 197
diff changeset
158 /* We really need to up the size limit of headers much */
mirkol
parents: 197
diff changeset
159 /* higher than MAXCHAR = 2048. mliss */
mirkol
parents: 197
diff changeset
160 }
43
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 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
163
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
164 return res;
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 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
168 Utl_toLower( Str 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 p = line;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
173 while ( *p )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
174 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
175 *p = tolower( *p );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
176 ++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 }
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 char *
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
181 Utl_stripWhiteSpace( char *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 char *p;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
184
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
185 while ( isspace( *line ) )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
186 ++line;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
187 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
188 while ( isspace( *p ) )
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 *p = '\0';
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
191 --p;
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 return line;
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
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
196 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
197 Utl_stripComment( char *line )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
198 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
199 for ( ; *line != '\0'; line++ )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
200 if ( *line =='#' )
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 *line = '\0';
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
203 break;
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 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
206
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
207 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
208 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
209 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
210 dst[ 0 ] = '\0';
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
211 strncat( dst, src, MAXCHAR );
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
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
214 void
59
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
215 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
216 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
217 if ( n > MAXCHAR )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
218 n = MAXCHAR;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
219 dst[ 0 ] = '\0';
59
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
220 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
221 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
222
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
223 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
224 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
225 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
226 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
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
59
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
230 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
231 {
59
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
232 size_t un;
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
233
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
234 ASSERT( n >= 0 );
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
235 un = (size_t)n;
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
236 if ( un > MAXCHAR - strlen( dst ) )
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
237 un = MAXCHAR - strlen( dst );
e612b263934f [svn] Changed some variable types and used some casts to avoid compiler
enz
parents: 54
diff changeset
238 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
239 }
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 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
242 Utl_stamp( Str file )
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 FILE *f;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
245 time_t t;
206
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
246 Str tmpfname;
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
247
206
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
248 snprintf( tmpfname, MAXCHAR, "%s/.#%d.stamp.update",
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
249 Cfg_spoolDir(), (int) getpid() );
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
250 time( &t );
206
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
251 if ( ! ( f = fopen( tmpfname, "w" ) ) )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
252 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
253 Log_err( "Could not open %s for writing (%s)",
206
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
254 tmpfname, strerror( errno ) );
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
255 return;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
256 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
257 fprintf( f, "%lu\n", t );
223
ffb1848a39db [svn] * src/util.c: Improve (correct) error detection when updating
bears
parents: 206
diff changeset
258 if ( fclose( f ) != 0 )
206
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
259 {
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
260 Log_err( "Error stamping into file %s: %s",
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
261 tmpfname, strerror( errno ) );
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
262
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
263 }
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
264 else
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
265 {
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
266 if ( rename( tmpfname, file ) < 0 )
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
267 Log_err( "Rename of stamp file %s to %s failed: %s",
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
268 tmpfname, file, strerror( errno ) );
eb2589384836 [svn] * TODO: Update the TODO list.
bears
parents: 202
diff changeset
269 }
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
270 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
271
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
272 Bool
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
273 Utl_getStamp( time_t *result, Str file )
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274 {
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275 FILE *f;
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276
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277 if ( ! ( f = fopen( file, "r" ) ) )
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278 return FALSE;
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279 if ( fscanf( f, "%lu", result ) != 1 )
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280 {
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281 Log_err( "File %s corrupted", file );
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282 fclose( f );
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283 return FALSE;
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284 }
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285 fclose( f );
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286 return TRUE;
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287 }
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288
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289 static const char *DOTW[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri",
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290 "Sat", NULL };
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291 static const char *MON[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul",
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292 "Aug", "Sep", "Oct", "Nov", "Dec", NULL };
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293
127
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294 /*
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295 * Calculate the difference between local time and GMT. This is INN's
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296 * 'always-works' method. It assumes the time differences is < 24hrs.
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297 * Sounds reasonable to me. It also assumes it can ignore seconds.
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298 * Returns GMT - localtime minutes. It will also trash the localtime/
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299 * gmtime/etc. static buffer.
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300 */
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301 static int
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302 tzDiff( void )
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303 {
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304 time_t now;
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305 struct tm local, gmt, *tm;
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306 static time_t nextCalc = 0;
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307 static int res = 0;
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308
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309 now = time( NULL );
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310 if ( now < nextCalc )
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311 return res;
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312
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313 tm = localtime( &now );
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314 if ( tm == NULL )
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315 return 0;
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316 local = *tm;
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317 tm = gmtime( &now );
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318 if ( tm == NULL )
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319 return 0;
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320 gmt = *tm;
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321
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322 res = gmt.tm_yday - local.tm_yday;
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323 if ( res < -1 )
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324 res = -1; /* Year rollover? */
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325 else if ( res > 1 )
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326 res = 1;
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327
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328 res *= 24;
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
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329 res += gmt.tm_hour - local.tm_hour;
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330 res *= 60;
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331 res += gmt.tm_min - local.tm_min;
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332
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333 /* Need to recalc at start of next hour */
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diff changeset
334 nextCalc = now + ( 60 - local.tm_sec ) + 60 * ( 59 - local.tm_min );
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335
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336 return res;
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337 }
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338
43
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339 void
91
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340 Utl_newsDate( time_t t, Str res )
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341 {
127
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342 struct tm *local;
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343 long tzdiff, hoffset, moffset;
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344
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345 tzdiff = - tzDiff();
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346
127
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347 local = localtime( &t );
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348 if ( local == NULL )
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349 {
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350 Utl_cpyStr( res, "** localtime failure **" );
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351 return;
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352 }
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353
91
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354 hoffset = tzdiff / 60;
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355 moffset = tzdiff % 60;
127
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356 if ( moffset < 0 )
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357 moffset = - moffset;
91
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358
127
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359 sprintf( res, "%s, %d %s %4d %02d:%02d:%02d %+03ld%02ld",
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360 DOTW[local->tm_wday], local->tm_mday,
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361 MON[local->tm_mon], local->tm_year + 1900,
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362 local->tm_hour, local->tm_min, local->tm_sec,
91
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363 hoffset, moffset );
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364 }
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365
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366 time_t
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367 Utl_parseNewsDate( const char *s )
43
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368 {
91
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369 struct tm tm;
127
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370 int wday, offset, tzoffset;
91
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371 char *p;
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372 time_t res;
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373
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374 memset( &tm, 0, sizeof( tm ) );
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375 wday = -1;
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
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376 tm.tm_isdst = -1;
91
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377
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378 s = nextNonWhiteSpace( s );
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379
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380 /* Is this the day number, or a weekday? */
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381 if ( ! isdigit( *s ) )
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382 {
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383 if ( strlen( s ) < 4 )
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384 return (time_t) -1;
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385
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386 for ( wday = 0; DOTW[ wday ] != NULL; wday++ )
186
7d1f26e7c728 [svn] Remove case sensitivity in date parse.
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387 if ( strncasecmp( DOTW[ wday ], s, 3 ) == 0 )
91
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388 break;
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389
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diff changeset
390 if( DOTW[ wday ] == NULL || s[3] != ',' )
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391 return (time_t) -1;
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diff changeset
392
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393 s += 4;
93cc929329eb [svn] Date output change and now date parsing
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394 }
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395
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diff changeset
396 /* Get the day number */
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diff changeset
397 tm.tm_mday = (int) strtol( s, &p, 10 );
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diff changeset
398 if ( p == s )
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diff changeset
399 return (time_t) -1;
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diff changeset
400 s = p;
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401
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diff changeset
402 /* Look for month name */
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diff changeset
403 s = nextNonWhiteSpace( s );
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diff changeset
404 if ( strlen( s ) < 4 )
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diff changeset
405 return (time_t) -1;
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diff changeset
406 for ( tm.tm_mon = 0; MON[ tm.tm_mon ] != NULL; tm.tm_mon++ )
186
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diff changeset
407 if ( strncasecmp( MON[ tm.tm_mon ], s, 3 ) == 0 )
91
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diff changeset
408 break;
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
409
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
410 if ( MON[ tm.tm_mon ] == NULL )
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diff changeset
411 return (time_t) -1;
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diff changeset
412 s += 3;
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diff changeset
413
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diff changeset
414 /* Year next */
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diff changeset
415 tm.tm_year = (int) strtol( s, &p, 10 );
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diff changeset
416 if ( p == s || ( tm.tm_year >= 100 && tm.tm_year < 1900 ) )
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diff changeset
417 return (time_t) -1;
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diff changeset
418 if ( tm.tm_year >= 1900 )
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diff changeset
419 tm.tm_year -= 1900;
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diff changeset
420 s = p;
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diff changeset
421
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diff changeset
422 /* Hours */
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diff changeset
423 tm.tm_hour = (int) strtol( s, &p, 10 );
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diff changeset
424 if ( p == s || *p != ':' )
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diff changeset
425 return (time_t) -1;
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diff changeset
426 s = ++p;
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diff changeset
427
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diff changeset
428 /* Minutes */
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diff changeset
429 tm.tm_min = (int) strtol( s, &p, 10 );
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diff changeset
430 if ( p == s || ( *p != ':' && *p != ' ' ) )
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diff changeset
431 return (time_t) -1;
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diff changeset
432 s = p;
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diff changeset
433
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diff changeset
434 /* Seconds */
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
435 if ( *s == ':' )
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
436 {
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
437 s++;
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
438 tm.tm_sec = (int) strtol( s, &p, 10 );
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
439 if ( p == s )
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
440 return (time_t) -1;
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
441 s = p;
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
442 }
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
443
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
444 /* GMT/UT or timezone offset */
93cc929329eb [svn] Date output change and now date parsing
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445 tzoffset = 0;
202
mirkol
parents: 197
diff changeset
446 s = nextNonWhiteSpace( s );
186
7d1f26e7c728 [svn] Remove case sensitivity in date parse.
bears
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diff changeset
447 if ( strncasecmp( s, "GMT", 3) == 0 )
91
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
448 s += 3;
186
7d1f26e7c728 [svn] Remove case sensitivity in date parse.
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diff changeset
449 else if ( strncasecmp( s, "UT", 2 ) == 0 )
91
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
450 s += 2;
93cc929329eb [svn] Date output change and now date parsing
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451 else
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
452 {
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
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diff changeset
453 offset = (int) strtol( s, &p, 10 );
202
mirkol
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diff changeset
454 if ( p == s )
mirkol
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diff changeset
455 return (time_t) -1;
91
93cc929329eb [svn] Date output change and now date parsing
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456 s = p;
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
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457 tzoffset = ( offset / 100 ) * 60 + ( offset % 100 );
91
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
458 }
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
459
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
460 /* Check for following junk */
93cc929329eb [svn] Date output change and now date parsing
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461 if ( *s != '\0' && ! isspace( *s ) )
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
462 return (time_t) -1;
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
463
93cc929329eb [svn] Date output change and now date parsing
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464 res = mktime( &tm );
93cc929329eb [svn] Date output change and now date parsing
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465 if ( res == (time_t) -1 )
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
466 return res;
93cc929329eb [svn] Date output change and now date parsing
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467
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
468 if ( wday >= 0 && wday != tm.tm_wday )
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
469 return (time_t) -1;
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
470
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
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diff changeset
471 /* Remove local time diff from res to give time as if GMT */
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
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diff changeset
472 res -= tzDiff() * 60;
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
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473
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
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diff changeset
474 /* And now adjust for tzoffset */
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
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diff changeset
475 res -= tzoffset * 60;
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
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476
91
93cc929329eb [svn] Date output change and now date parsing
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477 return res;
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
478 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
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479
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
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480 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
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481 Utl_allocAndCpy( char **dst, const char *src )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
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482 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
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483 int len = strlen( src );
45
32ba1198c6fa [svn] * Makefile.in, configure, configure.in, docs/Makefile.in, src/Makefile.in:
uh1763
parents: 43
diff changeset
484 if ( ! ( *dst = malloc( (size_t)len + 1 ) ) )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
485 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
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486 Log_err( "Cannot allocate string with length %lu", strlen( src ) );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
487 exit( EXIT_FAILURE );
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
488 }
45
32ba1198c6fa [svn] * Makefile.in, configure, configure.in, docs/Makefile.in, src/Makefile.in:
uh1763
parents: 43
diff changeset
489 memcpy( *dst, src, (size_t)len + 1 );
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
490 }
91
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
491
164
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
bears
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diff changeset
492 sig_t
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
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diff changeset
493 Utl_installSignalHandler( int sig, sig_t handler )
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
bears
parents: 127
diff changeset
494 {
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
bears
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diff changeset
495 struct sigaction act, oldAct;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
bears
parents: 127
diff changeset
496
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
bears
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diff changeset
497 act.sa_handler = handler;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
bears
parents: 127
diff changeset
498 sigemptyset( &act.sa_mask );
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
bears
parents: 127
diff changeset
499 act.sa_flags = 0;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
bears
parents: 127
diff changeset
500 if ( sig != SIGALRM )
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
bears
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diff changeset
501 act.sa_flags |= SA_RESTART;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
bears
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diff changeset
502 if ( sigaction( sig, &act, &oldAct ) < 0 )
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
bears
parents: 127
diff changeset
503 return SIG_ERR;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
bears
parents: 127
diff changeset
504 return oldAct.sa_handler;
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
bears
parents: 127
diff changeset
505 }
94f2e5607772 [svn] * src/client.c,src/protocol.c,src/util.h,src/util.c: Common up
bears
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diff changeset
506
91
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
507 #if defined(UTIL_TEST)
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
508
93cc929329eb [svn] Date output change and now date parsing
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parents: 87
diff changeset
509 /* Test code borrowed from wildmat.c. Yep, still uses gets(). */
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
510 extern char *gets();
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
511
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
512 int
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
513 main()
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
514 {
93cc929329eb [svn] Date output change and now date parsing
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parents: 87
diff changeset
515 Str line;
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
516 time_t t;
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
517
93cc929329eb [svn] Date output change and now date parsing
bears
parents: 87
diff changeset
518 printf( "Util date tester. Enter date to test.\n" );
93cc929329eb [svn] Date output change and now date parsing
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parents: 87
diff changeset
519 printf( "A blank line exits the program.\n" );
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
520
93cc929329eb [svn] Date output change and now date parsing
bears
parents: 87
diff changeset
521 for ( ; ; )
93cc929329eb [svn] Date output change and now date parsing
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parents: 87
diff changeset
522 {
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
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parents: 109
diff changeset
523 t = time( NULL );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
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diff changeset
524 Utl_newsDate( t, line );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
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diff changeset
525 printf( "\n(%s) Enter date: ", line );
91
93cc929329eb [svn] Date output change and now date parsing
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parents: 87
diff changeset
526 (void) fflush( stdout );
93cc929329eb [svn] Date output change and now date parsing
bears
parents: 87
diff changeset
527 if ( gets( line ) == NULL || line[0] == '\0' )
93cc929329eb [svn] Date output change and now date parsing
bears
parents: 87
diff changeset
528 break;
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
529
93cc929329eb [svn] Date output change and now date parsing
bears
parents: 87
diff changeset
530 t = Utl_parseNewsDate( line );
93cc929329eb [svn] Date output change and now date parsing
bears
parents: 87
diff changeset
531 if ( t == (time_t) -1 )
93cc929329eb [svn] Date output change and now date parsing
bears
parents: 87
diff changeset
532 printf( "Date parse failed\n" );
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
533 else
93cc929329eb [svn] Date output change and now date parsing
bears
parents: 87
diff changeset
534 {
93cc929329eb [svn] Date output change and now date parsing
bears
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diff changeset
535 Utl_newsDate( t, line );
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 109
diff changeset
536 printf( "Utl_newsDate -> '%s'\n", line );
91
93cc929329eb [svn] Date output change and now date parsing
bears
parents: 87
diff changeset
537 }
93cc929329eb [svn] Date output change and now date parsing
bears
parents: 87
diff changeset
538 }
93cc929329eb [svn] Date output change and now date parsing
bears
parents: 87
diff changeset
539
93cc929329eb [svn] Date output change and now date parsing
bears
parents: 87
diff changeset
540 exit(0);
93cc929329eb [svn] Date output change and now date parsing
bears
parents: 87
diff changeset
541 /* NOTREACHED */
93cc929329eb [svn] Date output change and now date parsing
bears
parents: 87
diff changeset
542 }
93cc929329eb [svn] Date output change and now date parsing
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diff changeset
543 #endif