mirror of
https://github.com/Unidata/netcdf-c.git
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594 lines
15 KiB
C
594 lines
15 KiB
C
/*********************************************************************
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* Copyright 2018, UCAR/Unidata
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* See netcdf/COPYRIGHT file for copying and redistribution conditions.
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*********************************************************************/
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/* $Id: main.c,v 1.33 2010/05/26 21:43:36 dmh Exp $ */
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/* $Header: /upc/share/CVS/netcdf-3/ncgen/main.c,v 1.33 2010/05/26 21:43:36 dmh Exp $ */
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#include "includes.h"
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#include "ncoffsets.h"
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#include "ncpathmgr.h"
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#ifdef HAVE_GETOPT_H
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#include <getopt.h>
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#endif
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#if defined(_WIN32) && !defined(__MINGW32__)
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#include "XGetopt.h"
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#endif
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/* Default is netcdf-3 mode 1 */
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#define DFALTCMODE 0
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/*Mnemonic*/
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#define DEPRECATED 1
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/* For error messages */
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char* progname; /* Global: not reclaimed */
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char* cdlname; /* Global: not reclaimed */
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/* option flags */
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int nofill_flag;
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char* mainname; /* name to use for main function; defaults to "main"*/
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Language l_flag;
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int syntax_only;
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int header_only;
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/* flags for tracking what output format to use */
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int k_flag; /* > 0 => -k was specified on command line*/
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int format_attribute; /* 1=>format came from format attribute */
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int enhanced_flag; /* 1 => netcdf-4 */
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int cdf5_flag; /* 1 => cdf5 | maybe netcdf-4 */
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int specials_flag; /* 1=> special attributes are present */
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int usingclassic;
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int cmode_modifier;
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int diskless;
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int ncloglevel;
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int wholevarsize;
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GlobalSpecialData globalspecials;
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size_t zerosvector[NC_MAX_VAR_DIMS];
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size_t onesvector[NC_MAX_VAR_DIMS];
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char* binary_ext = ".nc";
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struct Vlendata* vlendata;
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char *netcdf_name = NULL; /* command line -o file name */
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char *datasetname = NULL; /* name from the netcdf <name> {} || from -N */
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extern FILE *ncgin;
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/* Forward */
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static char* ubasename(char*);
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void usage( void );
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int main( int argc, char** argv );
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/* Define tables vs modes for legal -k values*/
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struct Kvalues legalkinds[] = {
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/* NetCDF-3 classic format (32-bit offsets) */
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{"classic", NC_FORMAT_CLASSIC, !DEPRECATED}, /* canonical format name */
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{"nc3", NC_FORMAT_CLASSIC, !DEPRECATED}, /* short format name */
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{"1", NC_FORMAT_CLASSIC, !DEPRECATED}, /* deprecated, use "-3" or "-k nc3" instead */
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/* NetCDF-3 64-bit offset format */
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{"64-bit offset", NC_FORMAT_64BIT_OFFSET, !DEPRECATED}, /* canonical format name */
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{"nc6", NC_FORMAT_64BIT_OFFSET, !DEPRECATED}, /* short format name */
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{"2", NC_FORMAT_64BIT_OFFSET, !DEPRECATED}, /* deprecated, use "-6" or "-k nc6" instead */
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{"64-bit-offset", NC_FORMAT_64BIT_OFFSET, !DEPRECATED}, /* aliases */
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/* NetCDF-4 HDF5-based format */
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{"netCDF-4", NC_FORMAT_NETCDF4, !DEPRECATED}, /* canonical format name */
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{"nc4", NC_FORMAT_NETCDF4, !DEPRECATED}, /* short format name */
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{"3", NC_FORMAT_NETCDF4, !DEPRECATED}, /* deprecated, use "-4" or "-k nc4" instead */
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{"netCDF4", NC_FORMAT_NETCDF4, !DEPRECATED}, /* aliases */
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{"hdf5", NC_FORMAT_NETCDF4, !DEPRECATED},
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{"enhanced", NC_FORMAT_NETCDF4, !DEPRECATED},
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{"netcdf-4", NC_FORMAT_NETCDF4, !DEPRECATED},
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{"netcdf4", NC_FORMAT_NETCDF4, !DEPRECATED},
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/* NetCDF-4 HDF5-based format, restricted to classic data model */
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{"netCDF-4 classic model", NC_FORMAT_NETCDF4_CLASSIC, !DEPRECATED}, /* canonical format name */
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{"nc7", NC_FORMAT_NETCDF4_CLASSIC, !DEPRECATED}, /* short format name */
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{"4", NC_FORMAT_NETCDF4_CLASSIC, !DEPRECATED}, /* deprecated, use "-7" or -k nc7" instead */
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{"netCDF-4-classic", NC_FORMAT_NETCDF4_CLASSIC, !DEPRECATED}, /* aliases */
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{"netCDF-4_classic", NC_FORMAT_NETCDF4_CLASSIC, !DEPRECATED},
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{"netCDF4_classic", NC_FORMAT_NETCDF4_CLASSIC, !DEPRECATED},
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{"hdf5-nc3", NC_FORMAT_NETCDF4_CLASSIC, !DEPRECATED},
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{"enhanced-nc3", NC_FORMAT_NETCDF4_CLASSIC, !DEPRECATED},
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/* CDF-5 format */
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{"5", NC_FORMAT_64BIT_DATA, !DEPRECATED},
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{"64-bit-data", NC_FORMAT_64BIT_DATA, !DEPRECATED},
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{"64-bit data", NC_FORMAT_64BIT_DATA, !DEPRECATED},
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{"nc5", NC_FORMAT_64BIT_DATA, !DEPRECATED},
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{"cdf5", NC_FORMAT_64BIT_DATA, !DEPRECATED},
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{"cdf-5", NC_FORMAT_64BIT_DATA, !DEPRECATED},
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/* null terminate*/
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{NULL,0,0}
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};
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#ifndef _MSC_VER
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struct Languages {
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char* name;
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Language flag;
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} legallanguages[] = {
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{"b", L_BINARY},
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{"c", L_C},
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{"C", L_C},
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{"f77", L_F77},
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{"fortran77", L_F77},
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{"Fortran77", L_F77},
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{"j", L_JAVA},
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{"java", L_JAVA},
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{NULL,L_UNDEFINED}
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};
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#else
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typedef struct Languages {
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char* name;
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Language flag;
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} Languages;
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struct Languages legallanguages[] = {
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{"b", L_BINARY},
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{"c", L_C},
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{"C", L_C},
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{"f77", L_F77},
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{"fortran77", L_F77},
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{"Fortran77", L_F77},
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{"j", L_JAVA},
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{"java", L_JAVA},
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{NULL,L_UNDEFINED}
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};
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#endif
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/* strip off leading path */
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/* result is malloc'd */
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static char *
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ubasename(char *logident)
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{
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char* sep;
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sep = strrchr(logident,'/');
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#ifdef MSDOS
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if(sep == NULL) sep = strrchr(logident,'\\');
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#endif
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if(sep == NULL) return logident;
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sep++; /* skip past the separator */
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return sep;
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}
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void
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usage(void)
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{
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derror("Usage: %s"
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" [-1]"
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" [-3]"
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" [-4]"
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" [-5]"
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" [-6]"
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" [-7]"
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" [-b]"
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" [-d]"
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" [-D debuglevel]"
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" [-h]"
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" [-k kind ]"
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" [-l language=b|c|f77|java]"
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" [-M <name>]"
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" [-n]"
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" [-o outfile]"
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" [-P]"
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" [-x]"
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" [-N datasetname]"
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" [-L loglevel]"
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" [-H]"
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" [-W generate whole var upload]"
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" [file ... ]",
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progname);
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derror("netcdf library version %s", nc_inq_libvers());
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}
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int
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main(
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int argc,
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char *argv[])
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{
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int code = 0;
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int c;
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FILE *fp;
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struct Languages* langs;
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init_netcdf();
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opterr = 1; /* print error message if bad option */
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progname = nulldup(ubasename(argv[0]));
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cdlname = NULL;
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netcdf_name = NULL;
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datasetname = NULL;
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l_flag = 0;
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nofill_flag = 0;
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syntax_only = 0;
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header_only = 0;
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mainname = "main";
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k_flag = 0;
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format_attribute = 0;
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enhanced_flag = 0;
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cdf5_flag = 0;
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specials_flag = 0;
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diskless = 0;
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wholevarsize = 1024;
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#ifdef LOGGING
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ncloglevel = NC_TURN_OFF_LOGGING;
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#else
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ncloglevel = -1;
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#endif
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memset(&globalspecials,0,sizeof(GlobalSpecialData));
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while ((c = getopt(argc, argv, "134567bcdD:fhHk:l:M:no:Pv:xL:N:B:W:")) != EOF)
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switch(c) {
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case 'b': /* for binary netcdf output, ".nc" extension */
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if(l_flag != 0) {
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fprintf(stderr,"Please specify only one language\n");
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return 1;
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}
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l_flag = L_BINARY;
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break;
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case 'B':
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/* Ignore, but keep for back compatibility */
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break;
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case 'c': /* for c output, old version of "-lc" */
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if(l_flag != 0) {
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fprintf(stderr,"Please specify only one language\n");
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return 1;
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}
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l_flag = L_C;
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fprintf(stderr,"-c is deprecated: please use -lc\n");
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break;
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case 'd':
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debug = 1;
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break;
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case 'D':
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debug = atoi(optarg);
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break;
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case 'f': /* for f77 output, old version of "-lf" */
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if(l_flag != 0) {
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fprintf(stderr,"Please specify only one language\n");
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return 1;
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}
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l_flag = L_F77;
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fprintf(stderr,"-f is deprecated: please use -lf77\n");
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break;
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case 'h':
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usage();
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goto done;
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case 'H':
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header_only = 1;
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break;
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case 'v': /* a deprecated alias for "kind" option */
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/*FALLTHRU*/
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case 'k': { /* for specifying variant of netCDF format to be generated
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Possible values are:
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Format names:
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"classic" or "nc3"
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"64-bit offset" or "nc6"
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"64-bit data" or "nc5" or "cdf-5"
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"netCDF-4" or "nc4"
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"netCDF-4 classic model" or "nc7"
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"netCDF-5" or "nc5" or "cdf5"
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Format version numbers (deprecated):
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1 (=> classic)
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2 (=> 64-bit offset)
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3 (=> netCDF-4)
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4 (=> netCDF-4 classic model)
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5 (=> classic 64 bit data aka CDF-5)
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*/
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struct Kvalues* kvalue;
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if(optarg == NULL) {
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derror("-k flag has no value");
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return 2;
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}
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for(kvalue=legalkinds;kvalue->name;kvalue++) {
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if(strcmp(optarg,kvalue->name) == 0) {
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k_flag = kvalue->k_flag;
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if(kvalue->deprecated)
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fprintf(stderr,"-k%s is deprecated; use corresponding -k<name> or -3|-4|-5|-6|-7\n",optarg);
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break;
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}
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}
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if(kvalue->name == NULL) {
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derror("Invalid format: %s",optarg);
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return 2;
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}
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} break;
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case 'l': /* specify language, instead of using -c or -f or -b */
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{
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char* lang_name = NULL;
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if(l_flag != 0) {
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fprintf(stderr,"Please specify only one language\n");
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return 1;
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}
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if(!optarg) {
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derror("%s: output language is null", progname);
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return(1);
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}
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lang_name = (char*) emalloc(strlen(optarg)+1);
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(void)strcpy(lang_name, optarg);
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for(langs=legallanguages;langs->name != NULL;langs++) {
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if(strcmp(lang_name,langs->name)==0) {
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l_flag = langs->flag;
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break;
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}
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}
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if(langs->name == NULL) {
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derror("%s: output language %s not implemented",progname, lang_name);
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nullfree(lang_name);
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return(1);
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}
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nullfree(lang_name);
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}; break;
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case 'L':
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ncloglevel = atoi(optarg);
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break;
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case 'M': /* Determine the name for the main function */
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mainname = nulldup(optarg);
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break;
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case 'n': /* old version of -b, uses ".cdf" extension */
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if(l_flag != 0) {
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fprintf(stderr,"Please specify only one language\n");
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return 1;
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}
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l_flag = L_BINARY;
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binary_ext = ".cdf";
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break;
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case 'N': /* to explicitly specify dataset name */
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if(datasetname) efree(datasetname);
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datasetname = nulldup(optarg);
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break;
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case 'o': /* to explicitly specify output name */
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if(netcdf_name) efree(netcdf_name);
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netcdf_name = NC_shellUnescape(optarg);
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break;
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case 'P': /* diskless with persistence */
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diskless = 1;
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case 'W':
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wholevarsize = atoi(optarg);
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break;
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case 'x': /* set nofill mode to speed up creation of large files */
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nofill_flag = 1;
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break;
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case '3': /* output format is classic (netCDF-3) */
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k_flag = NC_FORMAT_CLASSIC;
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break;
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case '6': /* output format is 64-bit-offset (netCDF-3 version 2) */
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k_flag = NC_FORMAT_64BIT_OFFSET;
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break;
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case '4': /* output format is netCDF-4 (variant of HDF5) */
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k_flag = NC_FORMAT_NETCDF4;
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break;
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case '5': /* output format is CDF5 */
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k_flag = NC_FORMAT_CDF5;
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break;
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case '7': /* output format is netCDF-4 (restricted to classic model)*/
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k_flag = NC_FORMAT_NETCDF4_CLASSIC;
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break;
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case '?':
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usage();
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return(8);
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}
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if(l_flag == 0) {
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l_flag = L_BINARY; /* default */
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/* Treat -k or -o as an implicit -lb assuming no other -l flags */
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if(k_flag == 0 && netcdf_name == NULL)
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syntax_only = 1;
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}
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#ifndef ENABLE_C
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if(l_flag == L_C) {
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fprintf(stderr,"C not currently supported\n");
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code=1; goto done;
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}
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#endif
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#ifndef ENABLE_BINARY
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if(l_flag == L_BINARY) {
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fprintf(stderr,"Binary netcdf not currently supported\n");
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code=1; goto done;
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}
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#endif
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#ifndef ENABLE_JAVA
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if(l_flag == L_JAVA) {
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fprintf(stderr,"Java not currently supported\n");
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code=1; goto done;
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}
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#else
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if(l_flag == L_JAVA && mainname != NULL && strcmp(mainname,"main")==0)
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mainname = "Main";
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#endif
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#ifndef ENABLE_F77
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if(l_flag == L_F77) {
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fprintf(stderr,"F77 not currently supported\n");
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code=1; goto done;
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}
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#endif
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if(l_flag != L_BINARY)
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diskless = 0;
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argc -= optind;
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argv += optind;
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if (argc > 1) {
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derror ("%s: only one input file argument permitted",progname);
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return(6);
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}
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fp = stdin;
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if (argc > 0 && strcmp(argv[0], "-") != 0) {
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char bom[4];
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size_t count;
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if ((fp = NCfopen(argv[0], "r")) == NULL) {
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derror ("can't open file %s for reading: ", argv[0]);
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perror("");
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return(7);
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}
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/* Check the leading bytes for an occurrence of a BOM */
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/* re: http://www.unicode.org/faq/utf_bom.html#BOM */
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/* Attempt to read the first four bytes */
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memset(bom,0,sizeof(bom));
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count = fread(bom,1,2,fp);
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if(count == 2) {
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switch (bom[0]) {
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case '\x00':
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case '\xFF':
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case '\xFE':
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/* Only UTF-* is allowed; complain and exit */
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fprintf(stderr,"Input file contains a BOM indicating a non-UTF8 encoding\n");
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return 1;
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case '\xEF':
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/* skip the BOM */
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(void)fread(bom,1,1,fp);
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break;
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default: /* legal printable char, presumably; rewind */
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(void)fseek(fp, 0L, SEEK_SET);
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break;
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}
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}
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}
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cdlname = NC_shellUnescape(argv[0]);
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if(cdlname != NULL) {
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if(strlen(cdlname) > NC_MAX_NAME)
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cdlname[NC_MAX_NAME] = '\0';
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}
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parse_init();
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ncgin = fp;
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if(debug >= 2) {ncgdebug=1;}
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if(ncgparse() != 0)
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return 1;
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/* Compute the k_flag (1st pass) using rules in the man page (ncgen.1).*/
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#ifndef ENABLE_CDF5
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if(k_flag == NC_FORMAT_CDF5) {
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derror("Output format CDF5 requested, but netcdf was built without cdf5 support.");
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return 0;
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}
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#endif
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#ifndef USE_NETCDF4
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if(enhanced_flag) {
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derror("CDL input is enhanced mode, but --disable-netcdf4 was specified during build");
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return 0;
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}
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#endif
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if(l_flag == L_JAVA || l_flag == L_F77) {
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k_flag = NC_FORMAT_CLASSIC;
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if(enhanced_flag) {
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derror("Java or Fortran requires classic model CDL input");
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return 0;
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}
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}
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if(k_flag == 0)
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k_flag = globalspecials._Format;
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if(cdf5_flag && !enhanced_flag && k_flag == 0)
|
|
k_flag = NC_FORMAT_64BIT_DATA;
|
|
if(enhanced_flag && k_flag == 0)
|
|
k_flag = NC_FORMAT_NETCDF4;
|
|
|
|
if(enhanced_flag && k_flag != NC_FORMAT_NETCDF4) {
|
|
if(enhanced_flag && k_flag != NC_FORMAT_NETCDF4 && k_flag != NC_FORMAT_64BIT_DATA) {
|
|
derror("-k or _Format conflicts with enhanced CDL input");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if(specials_flag > 0 && k_flag == 0)
|
|
#ifdef USE_NETCDF4
|
|
k_flag = NC_FORMAT_NETCDF4;
|
|
#else
|
|
k_flag = NC_FORMAT_CLASSIC;
|
|
#endif
|
|
|
|
if(k_flag == 0)
|
|
k_flag = NC_FORMAT_CLASSIC;
|
|
|
|
/* Figure out usingclassic */
|
|
switch (k_flag) {
|
|
case NC_FORMAT_64BIT_DATA:
|
|
case NC_FORMAT_CLASSIC:
|
|
case NC_FORMAT_64BIT_OFFSET:
|
|
case NC_FORMAT_NETCDF4_CLASSIC:
|
|
usingclassic = 1;
|
|
break;
|
|
case NC_FORMAT_NETCDF4:
|
|
default:
|
|
usingclassic = 0;
|
|
break;
|
|
}
|
|
|
|
/* compute cmode_modifier */
|
|
switch (k_flag) {
|
|
case NC_FORMAT_CLASSIC:
|
|
cmode_modifier = 0; break;
|
|
case NC_FORMAT_64BIT_OFFSET:
|
|
cmode_modifier = NC_64BIT_OFFSET; break;
|
|
case NC_FORMAT_NETCDF4:
|
|
cmode_modifier = NC_NETCDF4; break;
|
|
case NC_FORMAT_NETCDF4_CLASSIC:
|
|
cmode_modifier = NC_NETCDF4 | NC_CLASSIC_MODEL; break;
|
|
case NC_FORMAT_64BIT_DATA:
|
|
cmode_modifier = NC_CDF5; break;
|
|
default: ASSERT(0); /* cannot happen */
|
|
}
|
|
|
|
if(diskless)
|
|
cmode_modifier |= (NC_DISKLESS|NC_NOCLOBBER);
|
|
|
|
processsemantics();
|
|
if(!syntax_only && error_count == 0)
|
|
define_netcdf();
|
|
|
|
done:
|
|
nullfree(netcdf_name);
|
|
nullfree(datasetname);
|
|
finalize_netcdf(code);
|
|
return code;
|
|
}
|
|
|
|
void
|
|
init_netcdf(void) /* initialize global counts, flags */
|
|
{
|
|
int i;
|
|
memset((void*)&nullconstant,0,sizeof(NCConstant));
|
|
fillconstant = nullconstant;
|
|
fillconstant.nctype = NC_FILLVALUE;
|
|
|
|
filldatalist = builddatalist(1);
|
|
dlappend(filldatalist,&fillconstant);
|
|
filldatalist->readonly = 1;
|
|
|
|
codebuffer = bbNew();
|
|
stmt = bbNew();
|
|
error_count = 0; /* Track # of errors */
|
|
|
|
for(i=0;i<NC_MAX_VAR_DIMS;i++) onesvector[i] = 1;
|
|
memset(zerosvector,0,sizeof(zerosvector));
|
|
|
|
}
|
|
|
|
void
|
|
finalize_netcdf(int retcode)
|
|
{
|
|
nc_finalize();
|
|
exit(retcode);
|
|
}
|