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/****h* H5f90kit/H5f90kit
* PURPOSE
* Routines from HDF4 to deal with C-FORTRAN issues:
*
* HD5f2cstring -- convert a Fortran string to a C string
* HD5packFstring -- convert a C string into a Fortran string
*
* COPYRIGHT
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
******
*/
#include <ctype.h>
#include <stddef.h>
#include "H5f90.h"
/****if* H5f90kit/HDf2cstring
* NAME
* HD5f2cstring -- convert a Fortran string to a C string
* char * HDf2cstring(fdesc, len)
* INPUTS
* _fcd fdesc; IN: Fortran string descriptor
* int len; IN: length of Fortran string
* RETURNS
* Pointer to the C string if success, else NULL
* PURPOSE
* Chop off trailing blanks off of a Fortran string and
* move it into a newly allocated C string. It is up
* to the user to free this string.
* SOURCE
*/
char *
HD5f2cstring(_fcd fdesc, size_t len)
/******/
{
char *cstr; /* C string to return */
char *str; /* Pointer to FORTRAN string */
int i; /* Local index variable */
/* Search for the end of the string */
str = _fcdtocp(fdesc);
for (i = (int)len - 1; i >= 0 && isspace((int)str[i]) && str[i] == ' '; i--)
/*EMPTY*/;
/* Allocate C string */
if (NULL == (cstr = (char *)malloc((size_t)(i + 2))))
return NULL;
/* Copy text from FORTRAN to C string */
memcpy(cstr, str, (size_t)(i + 1));
/* Terminate C string */
cstr[i + 1] = '\0';
return cstr;
} /* HD5f2cstring */
/****if* H5f90kit/HD5packFstring
* NAME
* HD5packFstring -- convert a C string into a Fortran string
* int HD5packFstring(src, dest, len)
* INPUTS
* char * src; IN: source string
* int len; IN: length of string
* OUTPUTS
* char * dest; OUT: destination
* RETURNS
* SUCCEED / FAIL
* PURPOSE
* given a NULL terminated C string 'src' convert it to
* a space padded Fortran string 'dest' of length 'len'
*
* This is very similar to HDc2fstr except that function does
* it in place and this one copies. We should probably only
* support one of these.
* SOURCE
*/
void
HD5packFstring(char *src, char *dest, size_t dst_len)
/******/
{
size_t src_len = strlen(src);
/* Copy over the string information, up to the length of the src */
/* (Don't copy the NUL terminator from the C string to the FORTRAN string */
memcpy(dest, src, MIN(src_len, dst_len));
/* Pad out any remaining space in the FORTRAN string with ' 's */
if (src_len < dst_len)
memset(&dest[src_len], ' ', dst_len - src_len);
} /* HD5packFstring */
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