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add local generalized time generator

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This commit is contained in:
Pierangelo Masarati 2003-05-15 01:03:38 +00:00
parent 44a99d694e
commit c7ce39c788
1 changed files with 52 additions and 2 deletions
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54
libraries/liblutil/utils.c
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@ -6,6 +6,7 @@
#include "portable.h"
#include <stdio.h>
#include <ac/stdlib.h>
#include <ac/string.h>
#include <ac/unistd.h>
@ -45,8 +46,9 @@ char* lutil_progname( const char* name, int argc, char *argv[] )
return progname;
}
size_t lutil_gentime( char *s, size_t max, const struct tm *tm )
size_t lutil_gentime( char *s, size_t smax, const struct tm *tm )
{
#if 0
size_t ret;
#ifdef HAVE_EBCDIC
/* We've been compiling in ASCII so far, but we want EBCDIC now since
@ -54,14 +56,62 @@ size_t lutil_gentime( char *s, size_t max, const struct tm *tm )
*/
#pragma convlit(suspend)
#endif
ret = strftime( s, max, "%Y%m%d%H%M%SZ", tm );
ret = strftime( s, smax, "%Y%m%d%H%M%SZ", tm );
#ifdef HAVE_EBCDIC
#pragma convlit(resume)
__etoa( s );
#endif
return ret;
#else
return lutil_localtime( s, smax, tm, 0 );
#endif
}
size_t lutil_localtime( char *s, size_t smax, const struct tm *tm, long delta )
{
size_t ret;
char *p;
if ( smax < 20 ) {
return -1;
}
#ifdef HAVE_EBCDIC
/* We've been compiling in ASCII so far, but we want EBCDIC now since
* strftime only understands EBCDIC input.
*/
#pragma convlit(suspend)
#endif
ret = strftime( s, smax, "%Y%m%d%H%M%SZ", tm );
if ( ret == 0 ) {
return ret;
}
if ( delta == 0 ) {
return ret;
}
p = s + 14;
if ( delta < 0 ) {
p[ 0 ] = '-';
delta = -delta;
} else {
p[ 0 ] = '+';
}
p++;
snprintf( p, smax - 15, "%02ld%02ld", delta / 3600,
( delta % 3600 ) / 60 );
#ifdef HAVE_EBCDIC
#pragma convlit(resume)
__etoa( s );
#endif
return ret + 5;
}
/* strcopy is like strcpy except it returns a pointer to the trailing NUL of
* the result string. This allows fast construction of catenated strings
* without the overhead of strlen/strcat.