.TH "seekgb.c" 3 "Fri Jun 3 2022" "Version 1.6.4" "NCEPLIBS-g2c" \" -*- nroff -*-
.ad l
.nh
.SH NAME
seekgb.c \- Searches a file for the next GRIB message\&.  

.SH SYNOPSIS
.br
.PP
\fC#include <stdio\&.h>\fP
.br
\fC#include <stdlib\&.h>\fP
.br
\fC#include 'grib2\&.h'\fP
.br

.SS "Functions"

.in +1c
.ti -1c
.RI "void \fBseekgb\fP (FILE *lugb, \fBg2int\fP iseek, \fBg2int\fP mseek, \fBg2int\fP *lskip, \fBg2int\fP *lgrib)"
.br
.RI "This subprogram searches a file for the next GRIB Message\&. "
.in -1c
.SH "Detailed Description"
.PP 
Searches a file for the next GRIB message\&. 


.PP
\fBAuthor\fP
.RS 4
Stephen Gilbert 
.RE
.PP
\fBDate\fP
.RS 4
2002-10-28 
.RE
.PP

.PP
Definition in file \fBseekgb\&.c\fP\&.
.SH "Function Documentation"
.PP 
.SS "void seekgb (FILE * lugb, \fBg2int\fP iseek, \fBg2int\fP mseek, \fBg2int\fP * lskip, \fBg2int\fP * lgrib)"

.PP
This subprogram searches a file for the next GRIB Message\&. The search is done starting at byte offset iseek of the file referenced by lugb for mseek bytes at a time\&. If found, the starting position and length of the message are returned in lskip and lgrib, respectively\&. The search is terminated when an EOF or I/O error is encountered\&.
.PP
PROGRAM HISTORY LOG:
.IP "\(bu" 2
2002-10-28 GILBERT Modified from Iredell's skgb subroutine
.IP "\(bu" 2
2009-01-16 VUONG Changed lskip to 4 instead of sizof(g2int)
.PP
.PP
\fBParameters\fP
.RS 4
\fIlugb\fP FILE pointer for the file to search\&. File must be opened before this routine is called\&. 
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\fIiseek\fP number of bytes in the file to skip before search\&. 
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\fImseek\fP number of bytes to search at a time\&. 
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\fIlskip\fP number of bytes to skip from the beggining of the file to where the GRIB message starts\&. 
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\fIlgrib\fP number of bytes in message (set to 0, if no message found)\&.
.RE
.PP
\fBAuthor\fP
.RS 4
Stephen Gilbert 
.RE
.PP
\fBDate\fP
.RS 4
2002-10-28 
.RE
.PP

.PP
Definition at line 32 of file seekgb\&.c\&.
.PP
References gbit()\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for NCEPLIBS-g2c from the source code\&.