/*
* Copy 'how_much' bytes from the input file to the output file,
* starting at byte 'where' in the input file.
*
* Returns 0 on success, -1 on failure.
*/
herr_t
copy_to_file( FILE *infid, FILE *ofid, ssize_t _where, ssize_t how_much )
{
static char buf[COPY_BUF_SIZE];
off_t where = (off_t)_where;
off_t to;
off_t from;
herr_t ret_value = 0;
/* nothing to copy */
if(how_much <= 0)
goto done;
/* rewind */
HDfseek(infid, 0L, 0);
from = where;
to = 0;
while(how_much > 0) {
size_t bytes_in = 0; /* # of bytes to read */
size_t bytes_read = 0; /* # of bytes actually read */
size_t bytes_wrote = 0; /* # of bytes written */
if (how_much > COPY_BUF_SIZE)
bytes_in = COPY_BUF_SIZE;
else
bytes_in = how_much;
/* Seek to correct position in input file */
HDfseek(infid, from, SEEK_SET);
/* Read data to buffer */
bytes_read = HDfread(buf, (size_t)1, bytes_in, infid);
if(0 == bytes_read && HDferror(infid)) {
ret_value = -1;
goto done;
} /* end if */
if(0 == bytes_read && HDfeof(infid)) {
goto done;
} /* end if */
/* Seek to correct position in output file */
HDfseek(ofid, to, SEEK_SET);
/* Update positions/size */
how_much -= bytes_read;
from += bytes_read;
to += bytes_read;
/* Write nchars bytes to output file */
bytes_wrote = HDfwrite(buf, (size_t)1, bytes_read, ofid);
if(bytes_wrote != bytes_read || (0 == bytes_wrote && HDferror(ofid))) { /* error */
ret_value = -1;
goto done;
} /* end if */
} /* end while */
done:
return ret_value;
} /* end copy_to_file */
/*-------------------------------------------------------------------------
* Function: insert_libhdf5_settings
*
* Purpose: insert the contents of libhdf5.settings into a file
* represented by flibinfo.
* Make it an empty string if H5_HAVE_EMBEDDED_LIBINFO is not
* defined, i.e., not enabled.
*
* Return: void
*-------------------------------------------------------------------------
*/
static void
insert_libhdf5_settings(FILE *flibinfo)
{
#ifdef H5_HAVE_EMBEDDED_LIBINFO
FILE *fsettings; /* for files libhdf5.settings */
int inchar;
int bol = 0; /* indicates the beginning of a new line */
if(NULL == (fsettings = HDfopen(LIBSETTINGSFNAME, "r"))) {
HDperror(LIBSETTINGSFNAME);
HDexit(EXIT_FAILURE);
} /* end if */
/* print variable definition and the string */
/* Do not use const else AIX strings does not show it. */
fprintf(flibinfo, "char H5libhdf5_settings[]=\n");
bol++;
while(EOF != (inchar = HDgetc(fsettings))) {
if(bol) {
/* Start a new line */
fprintf(flibinfo, "\t\"");
bol = 0;
} /* end if */
if(inchar == '\n') {
/* end of a line */
fprintf(flibinfo, "\\n\"\n");
bol++;
} /* end if */
else
HDputc(inchar, flibinfo);
} /* end while */
if(HDfeof(fsettings)) {
/* wrap up */
if(!bol)
/* EOF found without a new line */
fprintf(flibinfo, "\\n\"\n");
fprintf(flibinfo, ";\n\n");
} /* end if */
else {
fprintf(stderr, "Read errors encountered with %s\n", LIBSETTINGSFNAME);
HDexit(EXIT_FAILURE);
} /* end else */
if(0 != HDfclose(fsettings)) {
HDperror(LIBSETTINGSFNAME);
HDexit(EXIT_FAILURE);
} /* end if */
#else
/* print variable definition and an empty string */
/* Do not use const else AIX strings does not show it. */
fprintf(flibinfo, "char H5libhdf5_settings[]=\"\";\n");
#endif
} /* insert_libhdf5_settings() */
static
int read_info(const char *filename, pack_opt_t *options) {
char stype[10];
char comp_info[1024];
FILE *fp = NULL;
char c;
int i, rc = 1;
int ret_value = EXIT_SUCCESS;
if ((fp = HDfopen(filename, "r")) == (FILE *) NULL) {
error_msg("cannot open options file %s\n", filename);
h5tools_setstatus(EXIT_FAILURE);
ret_value = EXIT_FAILURE;
goto done;
}
/* cycle until end of file reached */
while (1) {
rc = fscanf(fp, "%s", stype);
if (rc == -1)
break;
/*-------------------------------------------------------------------------
* filter
*-------------------------------------------------------------------------
*/
if (HDstrcmp(stype,"-f") == 0) {
/* find begining of info */
i = 0;
c = '0';
while (c != ' ') {
fscanf(fp, "%c", &c);
if (HDfeof(fp))
break;
}
c = '0';
/* go until end */
while (c != ' ') {
fscanf(fp, "%c", &c);
comp_info[i] = c;
i++;
if (HDfeof(fp))
break;
if (c == 10 /*eol*/)
break;
}
comp_info[i - 1] = '\0'; /*cut the last " */
if (h5repack_addfilter(comp_info, options) == -1) {
error_msg("could not add compression option\n");
h5tools_setstatus(EXIT_FAILURE);
ret_value = EXIT_FAILURE;
goto done;
}
}
/*-------------------------------------------------------------------------
* layout
*-------------------------------------------------------------------------
*/
else if (HDstrcmp(stype,"-l") == 0) {
/* find begining of info */
i = 0;
c = '0';
while (c != ' ') {
fscanf(fp, "%c", &c);
if (HDfeof(fp))
break;
}
c = '0';
/* go until end */
while (c != ' ') {
fscanf(fp, "%c", &c);
comp_info[i] = c;
i++;
if (HDfeof(fp))
break;
if (c == 10 /*eol*/)
break;
}
comp_info[i - 1] = '\0'; /*cut the last " */
if (h5repack_addlayout(comp_info, options) == -1) {
error_msg("could not add chunck option\n");
h5tools_setstatus(EXIT_FAILURE);
ret_value = EXIT_FAILURE;
goto done;
}
}
/*-------------------------------------------------------------------------
* not valid
*-------------------------------------------------------------------------
*/
else {
error_msg("bad file format for %s", filename);
h5tools_setstatus(EXIT_FAILURE);
ret_value = EXIT_FAILURE;
goto done;
}
}
done:
if (fp)
HDfclose(fp);
return ret_value;
}
static
void read_info(const char *filename,
pack_opt_t *options)
{
char stype[10];
char comp_info[1024];
FILE *fp;
char c;
int i, rc=1;
char *srcdir = getenv("srcdir"); /* the source directory */
char data_file[512]=""; /* buffer to hold name of existing file */
/* compose the name of the file to open, using the srcdir, if appropriate */
if (srcdir){
HDstrcpy(data_file,srcdir);
HDstrcat(data_file,"/");
}
HDstrcat(data_file,filename);
if ((fp = HDfopen(data_file, "r")) == (FILE *)NULL) {
error_msg("cannot open options file %s\n", filename);
HDexit(EXIT_FAILURE);
}
/* cycle until end of file reached */
while( 1 )
{
rc=fscanf(fp, "%s", stype);
if (rc==-1)
break;
/*-------------------------------------------------------------------------
* filter
*-------------------------------------------------------------------------
*/
if (HDstrcmp(stype,"-f") == 0) {
/* find begining of info */
i=0; c='0';
while( c!=' ' )
{
fscanf(fp, "%c", &c);
if (HDfeof(fp)) break;
}
c='0';
/* go until end */
while( c!=' ' )
{
fscanf(fp, "%c", &c);
comp_info[i]=c;
i++;
if (HDfeof(fp)) break;
if (c==10 /*eol*/) break;
}
comp_info[i-1]='\0'; /*cut the last " */
if (h5repack_addfilter(comp_info,options)==-1){
error_msg("could not add compression option\n");
HDexit(EXIT_FAILURE);
}
}
/*-------------------------------------------------------------------------
* layout
*-------------------------------------------------------------------------
*/
else if (HDstrcmp(stype,"-l") == 0) {
/* find begining of info */
i=0; c='0';
while( c!=' ' )
{
fscanf(fp, "%c", &c);
if (HDfeof(fp)) break;
}
c='0';
/* go until end */
while( c!=' ' )
{
fscanf(fp, "%c", &c);
comp_info[i]=c;
i++;
if (HDfeof(fp)) break;
if (c==10 /*eol*/) break;
}
comp_info[i-1]='\0'; /*cut the last " */
if (h5repack_addlayout(comp_info,options)==-1){
error_msg("could not add chunck option\n");
HDexit(EXIT_FAILURE);
}
}
/*-------------------------------------------------------------------------
* not valid
*-------------------------------------------------------------------------
*/
else {
error_msg("bad file format for %s", filename);
HDexit(EXIT_FAILURE);
}
}
HDfclose(fp);
return;
}