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use off_t as type long is 4bytes on 32bit machines, and include unistd.h to call lseek() to get file size

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This commit is contained in:
Wei-keng Liao 2017-11-11 13:44:44 -06:00
parent a9dde277d7
commit 28aec9e333
1 changed files with 6 additions and 4 deletions
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10
libdispatch/dfile.c
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@ -20,6 +20,8 @@ Research/Unidata. See COPYRIGHT file for more info.
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#include <unistd.h> /* lseek() */
#include "ncdispatch.h"
#include "netcdf_mem.h"
#include "ncwinpath.h"
@ -2092,17 +2094,17 @@ fprintf(stderr,"XXX: openmagic: memory=0x%llx size=%ld\n",meminfo->memory,meminf
{status = errno; goto done;}
/* Get its length */
{
#ifdef _MSC_VER
int fd = fileno(file->fp);
#ifdef _MSC_VER
__int64 len64 = _filelengthi64(fd);
if(len64 < 0)
{status = errno; goto done;}
file->filelen = (long long)len64;
#else
long size;
if((status = fseek(file->fp, 0L, SEEK_END)) < 0)
off_t size;
size = lseek(fd, 0, SEEK_END);
if(size == -1)
{status = errno; goto done;}
size = ftell(file->fp);
file->filelen = (long long)size;
#endif
rewind(file->fp);