/usr/include/grib2.h is in libgrib2c-dev 1.4.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 | #ifndef _grib2_H
#define _grib2_H
#include<stdio.h>
#define G2_VERSION "g2clib-1.4.0"
/* . . . .
// PRGMMR: Gilbert ORG: W/NP11 DATE: 2002-10-25
//
// PROGRAM HISTORY LOG:
// 2002-10-25 Gilbert
// 2009-01-14 Vuong Changed struct template to gtemplate
//
// Each element of structure gribfield is defined as:
//
// gribfield gfld;
//
// gfld->version = GRIB edition number ( currently 2 )
// gfld->discipline = Message Discipline ( see Code Table 0.0 )
// gfld->idsect = Contains the entries in the Identification
// Section ( Section 1 )
// This element is a pointer to an array
// that holds the data.
// gfld->idsect[0] = Identification of originating Centre
// ( see Common Code Table C-1 )
// 7 - US National Weather Service
// gfld->idsect[1] = Identification of originating Sub-centre
// gfld->idsect[2] = GRIB Master Tables Version Number
// ( see Code Table 1.0 )
// 0 - Experimental
// 1 - Initial operational version number
// gfld->idsect[3] = GRIB Local Tables Version Number
// ( see Code Table 1.1 )
// 0 - Local tables not used
// 1-254 - Number of local tables version used
// gfld->idsect[4] = Significance of Reference Time (Code Table 1.2)
// 0 - Analysis
// 1 - Start of forecast
// 2 - Verifying time of forecast
// 3 - Observation time
// gfld->idsect[5] = Year ( 4 digits )
// gfld->idsect[6] = Month
// gfld->idsect[7) = Day
// gfld->idsect[8] = Hour
// gfld->idsect[9] = Minute
// gfld->idsect[10] = Second
// gfld->idsect[11] = Production status of processed data
// ( see Code Table 1.3 )
// 0 - Operational products
// 1 - Operational test products
// 2 - Research products
// 3 - Re-analysis products
// gfld->idsect[12] = Type of processed data ( see Code Table 1.4 )
// 0 - Analysis products
// 1 - Forecast products
// 2 - Analysis and forecast products
// 3 - Control forecast products
// 4 - Perturbed forecast products
// 5 - Control and perturbed forecast products
// 6 - Processed satellite observations
// 7 - Processed radar observations
// gfld->idsectlen = Number of elements in gfld->idsect[].
// gfld->local = Pointer to character array containing contents
// of Local Section 2, if included
// gfld->locallen = length of array gfld->local[]
// gfld->ifldnum = field number within GRIB message
// gfld->griddef = Source of grid definition (see Code Table 3.0)
// 0 - Specified in Code table 3.1
// 1 - Predetermined grid Defined by originating centre
// gfld->ngrdpts = Number of grid points in the defined grid.
// gfld->numoct_opt = Number of octets needed for each
// additional grid points definition.
// Used to define number of
// points in each row ( or column ) for
// non-regular grids.
// = 0, if using regular grid.
// gfld->interp_opt = Interpretation of list for optional points
// definition. (Code Table 3.11)
// gfld->igdtnum = Grid Definition Template Number (Code Table 3.1)
// gfld->igdtmpl = Contains the data values for the specified Grid
// Definition Template ( NN=gfld->igdtnum ). Each
// element of this integer array contains an entry (in
// the order specified) of Grid Defintion Template 3.NN
// This element is a pointer to an array
// that holds the data.
// gfld->igdtlen = Number of elements in gfld->igdtmpl[]. i.e. number of
// entries in Grid Defintion Template 3.NN
// ( NN=gfld->igdtnum ).
// gfld->list_opt = (Used if gfld->numoct_opt .ne. 0) This array
// contains the number of grid points contained in
// each row ( or column ). (part of Section 3)
// This element is a pointer to an array
// that holds the data. This pointer is nullified
// if gfld->numoct_opt=0.
// gfld->num_opt = (Used if gfld->numoct_opt .ne. 0) The number of entries
// in array ideflist. i.e. number of rows ( or columns )
// for which optional grid points are defined. This value
// is set to zero, if gfld->numoct_opt=0.
// gfdl->ipdtnum = Product Definition Template Number (see Code Table 4.0)
// gfld->ipdtmpl = Contains the data values for the specified Product
// Definition Template ( N=gfdl->ipdtnum ). Each element
// of this integer array contains an entry (in the
// order specified) of Product Defintion Template 4.N.
// This element is a pointer to an array
// that holds the data.
// gfld->ipdtlen = Number of elements in gfld->ipdtmpl[]. i.e. number of
// entries in Product Defintion Template 4.N
// ( N=gfdl->ipdtnum ).
// gfld->coord_list = Real array containing floating point values
// intended to document the vertical discretisation
// associated to model data on hybrid coordinate
// vertical levels. (part of Section 4)
// This element is a pointer to an array
// that holds the data.
// gfld->num_coord = number of values in array gfld->coord_list[].
// gfld->ndpts = Number of data points unpacked and returned.
// gfld->idrtnum = Data Representation Template Number
// ( see Code Table 5.0)
// gfld->idrtmpl = Contains the data values for the specified Data
// Representation Template ( N=gfld->idrtnum ). Each
// element of this integer array contains an entry
// (in the order specified) of Product Defintion
// Template 5.N.
// This element is a pointer to an array
// that holds the data.
// gfld->idrtlen = Number of elements in gfld->idrtmpl[]. i.e. number
// of entries in Data Representation Template 5.N
// ( N=gfld->idrtnum ).
// gfld->unpacked = logical value indicating whether the bitmap and
// data values were unpacked. If false,
// gfld->bmap and gfld->fld pointers are nullified.
// gfld->expanded = Logical value indicating whether the data field
// was expanded to the grid in the case where a
// bit-map is present. If true, the data points in
// gfld->fld match the grid points and zeros were
// inserted at grid points where data was bit-mapped
// out. If false, the data values in gfld->fld were
// not expanded to the grid and are just a consecutive
// array of data points corresponding to each value of
// "1" in gfld->bmap.
// gfld->ibmap = Bitmap indicator ( see Code Table 6.0 )
// 0 = bitmap applies and is included in Section 6.
// 1-253 = Predefined bitmap applies
// 254 = Previously defined bitmap applies to this field
// 255 = Bit map does not apply to this product.
// gfld->bmap = integer array containing decoded bitmap,
// if gfld->ibmap=0 or gfld->ibap=254. Otherwise nullified.
// This element is a pointer to an array
// that holds the data.
// gfld->fld = Array of gfld->ndpts unpacked data points.
// This element is a pointer to an array
// that holds the data.
*/
#ifdef __64BIT__
typedef int g2int;
typedef unsigned int g2intu;
#else
typedef long g2int;
typedef unsigned long g2intu;
#endif
typedef float g2float;
struct gtemplate {
g2int type; /* 3=Grid Defintion Template. */
/* 4=Product Defintion Template. */
/* 5=Data Representation Template. */
g2int num; /* template number. */
g2int maplen; /* number of entries in the static part */
/* of the template. */
g2int *map; /* num of octets of each entry in the */
/* static part of the template. */
g2int needext; /* indicates whether or not the template needs */
/* to be extended. */
g2int extlen; /* number of entries in the template extension. */
g2int *ext; /* num of octets of each entry in the extension */
/* part of the template. */
};
typedef struct gtemplate gtemplate;
struct gribfield {
g2int version,discipline;
g2int *idsect;
g2int idsectlen;
unsigned char *local;
g2int locallen;
g2int ifldnum;
g2int griddef,ngrdpts;
g2int numoct_opt,interp_opt,num_opt;
g2int *list_opt;
g2int igdtnum,igdtlen;
g2int *igdtmpl;
g2int ipdtnum,ipdtlen;
g2int *ipdtmpl;
g2int num_coord;
g2float *coord_list;
g2int ndpts,idrtnum,idrtlen;
g2int *idrtmpl;
g2int unpacked;
g2int expanded;
g2int ibmap;
g2int *bmap;
g2float *fld;
};
typedef struct gribfield gribfield;
/* Prototypes for unpacking API */
void seekgb(FILE *,g2int ,g2int ,g2int *,g2int *);
g2int g2_info(unsigned char *,g2int *,g2int *,g2int *,g2int *);
g2int g2_getfld(unsigned char *,g2int ,g2int ,g2int ,gribfield **);
void g2_free(gribfield *);
/* Prototypes for packing API */
g2int g2_create(unsigned char *,g2int *,g2int *);
g2int g2_addlocal(unsigned char *,unsigned char *,g2int );
g2int g2_addgrid(unsigned char *,g2int *,g2int *,g2int *,g2int );
g2int g2_addfield(unsigned char *,g2int ,g2int *,
g2float *,g2int ,g2int ,g2int *,
g2float *,g2int ,g2int ,g2int *);
g2int g2_gribend(unsigned char *);
/* Prototypes for supporting routines */
extern double int_power(double, g2int );
extern void mkieee(g2float *,g2int *,g2int);
void rdieee(g2int *,g2float *,g2int );
extern gtemplate *getpdstemplate(g2int);
extern gtemplate *extpdstemplate(g2int,g2int *);
extern gtemplate *getdrstemplate(g2int);
extern gtemplate *extdrstemplate(g2int,g2int *);
extern gtemplate *getgridtemplate(g2int);
extern gtemplate *extgridtemplate(g2int,g2int *);
extern void simpack(g2float *,g2int,g2int *,unsigned char *,g2int *);
extern void compack(g2float *,g2int,g2int,g2int *,unsigned char *,g2int *);
void misspack(g2float *,g2int ,g2int ,g2int *, unsigned char *, g2int *);
void gbit(unsigned char *,g2int *,g2int ,g2int );
void sbit(unsigned char *,g2int *,g2int ,g2int );
void gbits(unsigned char *,g2int *,g2int ,g2int ,g2int ,g2int );
void sbits(unsigned char *,g2int *,g2int ,g2int ,g2int ,g2int );
int pack_gp(g2int *, g2int *, g2int *,
g2int *, g2int *, g2int *, g2int *, g2int *,
g2int *, g2int *, g2int *, g2int *,
g2int *, g2int *, g2int *, g2int *, g2int *,
g2int *, g2int *, g2int *);
/* Used in pygrib, and hence exposed here */
g2int g2_unpack1(unsigned char *,g2int *,g2int **,g2int *);
g2int g2_unpack2(unsigned char *,g2int *,g2int *,unsigned char **);
g2int g2_unpack3(unsigned char *,g2int *,g2int **,g2int **,
g2int *,g2int **,g2int *);
g2int g2_unpack4(unsigned char *,g2int *,g2int *,g2int **,
g2int *,g2float **,g2int *);
g2int g2_unpack5(unsigned char *,g2int *,g2int *,g2int *, g2int **,g2int *);
g2int g2_unpack6(unsigned char *,g2int *,g2int ,g2int *, g2int **);
g2int g2_unpack7(unsigned char *,g2int *,g2int ,g2int *,
g2int ,g2int *,g2int ,g2float **);
#endif /* _grib2_H */
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