netcdf-c/libdap2/dapcvt.c
Dennis Heimbigner 66fcf79d77 Github issue: https://github.com/Unidata/netcdf-c/issues/206
Re e-eupport VGQ-678069
It was noticed that an attribute value of "nan." was being treated as
legal (it should be "nan"). The reason is that sscanf was not be checked
to see that all the attribute value characters were being read.
Solution is to verify that all characters were being consumed.
2016-02-02 13:06:57 -07:00

287 lines
11 KiB
C

/*********************************************************************
* Copyright 1993, UCAR/Unidata
* See netcdf/COPYRIGHT file for copying and redistribution conditions.
*********************************************************************/
#include "config.h"
#include "ncdap.h"
#ifdef _MSC_VER
#include <crtdbg.h>
#endif
NCerror
dapconvert(nc_type srctype, nc_type dsttype, char* memory0, char* value0, size_t count)
{
NCerror ncstat = NC_NOERR;
size_t i;
char* memory = memory0;
char* value = value0;
/* In order to deal with the DAP upgrade problem,
try to preserve the bit patterns
*/
/* Provide space and pointer casts for intermediate results */
signed char ncbyte;
signed char* ncbytep;
char ncchar;
char* nccharp;
short ncshort;
short* ncshortp;
int ncint;
int* ncintp;
float ncfloat;
float* ncfloatp;
double ncdouble;
double* ncdoublep;
unsigned char ncubyte;
unsigned char* ncubytep;
unsigned short ncushort;
unsigned short* ncushortp;
unsigned int ncuint;
unsigned int* ncuintp;
long long ncint64;
long long* ncint64p;
unsigned long long ncuint64;
unsigned long long* ncuint64p;
#define CASE(nc1,nc2) (nc1*256+nc2)
#define CUT8(e) ((unsigned char)((e) & 0xff))
#define CUT16(e) ((unsigned short)((e) & 0xffff))
#define CUT32(e) ((unsigned int)((e) & 0xffffffff))
#define ARM(vs,ncs,ts,vd,ncd,td) \
case CASE(ncs,ncd):\
vs##p = (ts *)value;\
vs = *vs##p;\
vd##p = (td *)memory;\
*vd##p = (td)vs;\
break;
for(i=0;i<count;i++) {
switch (CASE(srctype,dsttype)) {
ARM(ncchar,NC_CHAR,char,ncchar,NC_CHAR,char)
ARM(ncchar,NC_CHAR,char,ncbyte,NC_BYTE,signed char)
ARM(ncchar,NC_CHAR,char,ncubyte,NC_UBYTE,unsigned char)
ARM(ncchar,NC_CHAR,char,ncshort,NC_SHORT,short)
ARM(ncchar,NC_CHAR,char,ncushort,NC_USHORT,unsigned short)
ARM(ncchar,NC_CHAR,char,ncint,NC_INT,int)
ARM(ncchar,NC_CHAR,char,ncuint,NC_UINT,unsigned int)
ARM(ncchar,NC_CHAR,char,ncint64,NC_INT64,long long)
ARM(ncchar,NC_CHAR,char,ncuint64,NC_UINT64,unsigned long long)
ARM(ncchar,NC_CHAR,char,ncfloat,NC_FLOAT,float)
ARM(ncchar,NC_CHAR,char,ncdouble,NC_DOUBLE,double)
ARM(ncbyte,NC_BYTE,signed char,ncchar,NC_CHAR,char)
ARM(ncbyte,NC_BYTE,signed char,ncbyte,NC_BYTE,signed char)
ARM(ncbyte,NC_BYTE,signed char,ncubyte,NC_UBYTE,unsigned char)
ARM(ncbyte,NC_BYTE,signed char,ncshort,NC_SHORT,short)
ARM(ncbyte,NC_BYTE,signed char,ncushort,NC_USHORT,unsigned short)
ARM(ncbyte,NC_BYTE,signed char,ncint,NC_INT,int)
ARM(ncbyte,NC_BYTE,signed char,ncuint,NC_UINT,unsigned int)
ARM(ncbyte,NC_BYTE,signed char,ncint64,NC_INT64,long long)
ARM(ncbyte,NC_BYTE,signed char,ncuint64,NC_UINT64,unsigned long long)
ARM(ncbyte,NC_BYTE,signed char,ncfloat,NC_FLOAT,float)
ARM(ncbyte,NC_BYTE,signed char,ncdouble,NC_DOUBLE,double)
ARM(ncubyte,NC_UBYTE,unsigned char,ncchar,NC_CHAR,char)
ARM(ncubyte,NC_UBYTE,unsigned char,ncbyte,NC_BYTE,signed char)
ARM(ncubyte,NC_UBYTE,unsigned char,ncubyte,NC_UBYTE,unsigned char)
ARM(ncubyte,NC_UBYTE,unsigned char,ncshort,NC_SHORT,short)
ARM(ncubyte,NC_UBYTE,unsigned char,ncushort,NC_USHORT,unsigned short)
ARM(ncubyte,NC_UBYTE,unsigned char,ncint,NC_INT,int)
ARM(ncubyte,NC_UBYTE,unsigned char,ncuint,NC_UINT,unsigned int)
ARM(ncubyte,NC_UBYTE,unsigned char,ncint64,NC_INT64,long long)
ARM(ncubyte,NC_UBYTE,unsigned char,ncuint64,NC_UINT64,unsigned long long)
ARM(ncubyte,NC_UBYTE,unsigned char,ncfloat,NC_FLOAT,float)
ARM(ncubyte,NC_UBYTE,unsigned char,ncdouble,NC_DOUBLE,double)
ARM(ncshort,NC_SHORT,short,ncchar,NC_CHAR,char)
ARM(ncshort,NC_SHORT,short,ncbyte,NC_BYTE,signed char)
ARM(ncshort,NC_SHORT,short,ncubyte,NC_UBYTE,unsigned char)
ARM(ncshort,NC_SHORT,short,ncshort,NC_SHORT,short)
ARM(ncshort,NC_SHORT,short,ncushort,NC_USHORT,unsigned short)
ARM(ncshort,NC_SHORT,short,ncint,NC_INT,int)
ARM(ncshort,NC_SHORT,short,ncuint,NC_UINT,unsigned int)
ARM(ncshort,NC_SHORT,short,ncint64,NC_INT64,long long)
ARM(ncshort,NC_SHORT,short,ncuint64,NC_UINT64,unsigned long long)
ARM(ncshort,NC_SHORT,short,ncfloat,NC_FLOAT,float)
ARM(ncshort,NC_SHORT,short,ncdouble,NC_DOUBLE,double)
ARM(ncushort,NC_USHORT,unsigned short,ncchar,NC_CHAR,char)
ARM(ncushort,NC_USHORT,unsigned short,ncbyte,NC_BYTE,signed char)
ARM(ncushort,NC_USHORT,unsigned short,ncubyte,NC_UBYTE,unsigned char)
ARM(ncushort,NC_USHORT,unsigned short,ncshort,NC_SHORT,short)
ARM(ncushort,NC_USHORT,unsigned short,ncushort,NC_USHORT,unsigned short)
ARM(ncushort,NC_USHORT,unsigned short,ncint,NC_INT,int)
ARM(ncushort,NC_USHORT,unsigned short,ncuint,NC_UINT,unsigned int)
ARM(ncushort,NC_USHORT,unsigned short,ncint64,NC_INT64,long long)
ARM(ncushort,NC_USHORT,unsigned short,ncuint64,NC_UINT64,unsigned long long)
ARM(ncushort,NC_USHORT,unsigned short,ncfloat,NC_FLOAT,float)
ARM(ncushort,NC_USHORT,unsigned short,ncdouble,NC_DOUBLE,double)
ARM(ncint,NC_INT,int,ncchar,NC_CHAR,char)
ARM(ncint,NC_INT,int,ncbyte,NC_BYTE,signed char)
ARM(ncint,NC_INT,int,ncubyte,NC_UBYTE,unsigned char)
ARM(ncint,NC_INT,int,ncshort,NC_SHORT,short)
ARM(ncint,NC_INT,int,ncushort,NC_USHORT,unsigned short)
ARM(ncint,NC_INT,int,ncint,NC_INT,int)
ARM(ncint,NC_INT,int,ncuint,NC_UINT,unsigned int)
ARM(ncint,NC_INT,int,ncint64,NC_INT64,long long)
ARM(ncint,NC_INT,int,ncuint64,NC_UINT64,unsigned long long)
ARM(ncint,NC_INT,int,ncfloat,NC_FLOAT,float)
ARM(ncint,NC_INT,int,ncdouble,NC_DOUBLE,double)
ARM(ncuint,NC_UINT,unsigned int,ncchar,NC_CHAR,char)
ARM(ncuint,NC_UINT,unsigned int,ncbyte,NC_BYTE,signed char)
ARM(ncuint,NC_UINT,unsigned int,ncubyte,NC_UBYTE,unsigned char)
ARM(ncuint,NC_UINT,unsigned int,ncshort,NC_SHORT,short)
ARM(ncuint,NC_UINT,unsigned int,ncushort,NC_USHORT,unsigned short)
ARM(ncuint,NC_UINT,unsigned int,ncint,NC_INT,int)
ARM(ncuint,NC_UINT,unsigned int,ncuint,NC_UINT,unsigned int)
ARM(ncuint,NC_UINT,unsigned int,ncint64,NC_INT64,long long)
ARM(ncuint,NC_UINT,unsigned int,ncuint64,NC_UINT64,unsigned long long)
ARM(ncuint,NC_UINT,unsigned int,ncfloat,NC_FLOAT,float)
ARM(ncuint,NC_UINT,unsigned int,ncdouble,NC_DOUBLE,double)
ARM(ncint64,NC_INT64,long long,ncchar,NC_CHAR,char)
ARM(ncint64,NC_INT64,long long,ncbyte,NC_BYTE,signed char)
ARM(ncint64,NC_INT64,long long,ncubyte,NC_UBYTE,unsigned char)
ARM(ncint64,NC_INT64,long long,ncshort,NC_SHORT,short)
ARM(ncint64,NC_INT64,long long,ncushort,NC_USHORT,unsigned short)
ARM(ncint64,NC_INT64,long long,ncint,NC_INT,int)
ARM(ncint64,NC_INT64,long long,ncuint,NC_UINT,unsigned int)
ARM(ncint64,NC_INT64,long long,ncint64,NC_INT64,long long)
ARM(ncint64,NC_INT64,long long,ncuint64,NC_UINT64,unsigned long long)
ARM(ncint64,NC_INT64,long long,ncfloat,NC_FLOAT,float)
ARM(ncint64,NC_INT64,long long,ncdouble,NC_DOUBLE,double)
ARM(ncuint64,NC_UINT64,unsigned long long,ncchar,NC_CHAR,char)
ARM(ncuint64,NC_UINT64,unsigned long long,ncbyte,NC_BYTE,signed char)
ARM(ncuint64,NC_UINT64,unsigned long long,ncubyte,NC_UBYTE,unsigned char)
ARM(ncuint64,NC_UINT64,unsigned long long,ncshort,NC_SHORT,short)
ARM(ncuint64,NC_UINT64,unsigned long long,ncushort,NC_USHORT,unsigned short)
ARM(ncuint64,NC_UINT64,unsigned long long,ncint,NC_INT,int)
ARM(ncuint64,NC_UINT64,unsigned long long,ncuint,NC_UINT,unsigned int)
ARM(ncuint64,NC_UINT64,unsigned long long,ncint64,NC_INT64,long long)
ARM(ncuint64,NC_UINT64,unsigned long long,ncuint64,NC_UINT64,unsigned long long)
ARM(ncuint64,NC_UINT64,unsigned long long,ncfloat,NC_FLOAT,float)
ARM(ncuint64,NC_UINT64,unsigned long long,ncdouble,NC_DOUBLE,double)
ARM(ncfloat,NC_FLOAT,float,ncchar,NC_CHAR,char)
ARM(ncfloat,NC_FLOAT,float,ncbyte,NC_BYTE,signed char)
ARM(ncfloat,NC_FLOAT,float,ncubyte,NC_UBYTE,unsigned char)
ARM(ncfloat,NC_FLOAT,float,ncshort,NC_SHORT,short)
ARM(ncfloat,NC_FLOAT,float,ncushort,NC_USHORT,unsigned short)
ARM(ncfloat,NC_FLOAT,float,ncint,NC_INT,int)
ARM(ncfloat,NC_FLOAT,float,ncuint,NC_UINT,unsigned int)
ARM(ncfloat,NC_FLOAT,float,ncint64,NC_INT64,long long)
ARM(ncfloat,NC_FLOAT,float,ncuint64,NC_UINT64,unsigned long long)
ARM(ncfloat,NC_FLOAT,float,ncfloat,NC_FLOAT,float)
ARM(ncfloat,NC_FLOAT,float,ncdouble,NC_DOUBLE,double)
ARM(ncdouble,NC_DOUBLE,double,ncchar,NC_CHAR,char)
ARM(ncdouble,NC_DOUBLE,double,ncbyte,NC_BYTE,signed char)
ARM(ncdouble,NC_DOUBLE,double,ncubyte,NC_UBYTE,unsigned char)
ARM(ncdouble,NC_DOUBLE,double,ncshort,NC_SHORT,short)
ARM(ncdouble,NC_DOUBLE,double,ncushort,NC_USHORT,unsigned short)
ARM(ncdouble,NC_DOUBLE,double,ncint,NC_INT,int)
ARM(ncdouble,NC_DOUBLE,double,ncuint,NC_UINT,unsigned int)
ARM(ncdouble,NC_DOUBLE,double,ncint64,NC_INT64,long long)
ARM(ncdouble,NC_DOUBLE,double,ncuint64,NC_UINT64,unsigned long long)
ARM(ncdouble,NC_DOUBLE,double,ncfloat,NC_FLOAT,float)
ARM(ncdouble,NC_DOUBLE,double,ncdouble,NC_DOUBLE,double)
default: ncstat = NC_EINVAL; THROWCHK(ncstat); goto fail;
}
value += nctypesizeof(srctype);
memory += nctypesizeof(dsttype);
}
fail:
return THROW(ncstat);
}
NCerror
dapcvtattrval(nc_type etype, void* dst, NClist* src)
{
int i,ok;
NCerror ncstat = NC_NOERR;
unsigned int memsize = nctypesizeof(etype);
unsigned int nvalues = nclistlength(src);
char* dstmem = (char*)dst;
for(i=0;i<nvalues;i++) {
char* s = (char*)nclistget(src,i);
size_t slen = strlen(s);
int nread = 0; /* # of chars read by sscanf */
ok = 0;
switch (etype) {
case NC_BYTE: {
char tmp[128];
unsigned char* p = (unsigned char*)dstmem;
#ifdef _MSC_VER
ok = sscanf(s,"%hC%n",p,&nread);
_ASSERTE(_CrtCheckMemory());
#else
ok = sscanf(s,"%hhu%n",p,&nread);
#endif
} break;
case NC_CHAR: {
signed char* p = (signed char*)dstmem;
ok = sscanf(s,"%c%n",p,&nread);
} break;
case NC_SHORT: {
short* p = (short*)dstmem;
ok = sscanf(s,"%hd%n",p,&nread);
} break;
case NC_INT: {
int* p = (int*)dstmem;
ok = sscanf(s,"%d%n",p,&nread);
} break;
case NC_FLOAT: {
float* p = (float*)dstmem;
ok = sscanf(s,"%g%n",p,&nread);
} break;
case NC_DOUBLE: {
double* p = (double*)dstmem;
ok = sscanf(s,"%lg%n",p,&nread);
} break;
case NC_UBYTE: {
unsigned char* p = (unsigned char*)dstmem;
#ifdef _MSC_VER
ok = sscanf(s, "%hc%n", p,&nread);
_ASSERTE(_CrtCheckMemory());
#else
ok = sscanf(s,"%hhu%n",p,&nread);
#endif
} break;
case NC_USHORT: {
unsigned short* p = (unsigned short*)dstmem;
ok = sscanf(s,"%hu%n",p,&nread);
} break;
case NC_UINT: {
unsigned int* p = (unsigned int*)dstmem;
ok = sscanf(s,"%u%n",p,&nread);
} break;
case NC_INT64: {
long long* p = (long long*)dstmem;
#ifdef _MSC_VER
ok = sscanf(s, "%I64d%n", p,&nread);
#else
ok = sscanf(s,"%lld%n",p,&nread);
#endif
} break;
case NC_UINT64: {
unsigned long long* p = (unsigned long long*)dstmem;
ok = sscanf(s,"%llu%n",p,&nread);
} break;
case NC_STRING: case NC_URL: {
char** p = (char**)dstmem;
*p = nulldup(s);
ok = 1;
} break;
default:
PANIC1("unexpected nc_type: %d",(int)etype);
}
if(ok != 1 || nread != slen) {ncstat = NC_EINVAL; goto done;}
dstmem += memsize;
}
done:
return THROW(ncstat);
}