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/*
* TransFig: Facility for Translating Fig code
* Various copyrights in this file follow
* Parts Copyright (c) 1994-1999 by Brian V. Smith
*
* Any party obtaining a copy of these files is granted, free of charge, a
* full and unrestricted irrevocable, world-wide, paid up, royalty-free,
* nonexclusive right and license to deal in this software and
* documentation files (the "Software"), including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons who receive
* copies from any such party to do so, with the only requirement being
* that this copyright notice remain intact.
*
*/
#include <sys/types.h>
#include <sys/stat.h>
#include "fig2dev.h"
/*
Open the file 'name' and return its type (pipe or real file) in 'type'.
Return the full name in 'retname'. This will have a .gz or .Z if the file is
zipped/compressed.
The return value is the FILE stream.
*/
FILE *
open_picfile(name, type, pipeok, retname)
char *name;
int *type;
Boolean pipeok;
char *retname;
{
char unc[PATH_MAX+20]; /* temp buffer for gunzip command */
FILE *fstream; /* handle on file */
struct stat status;
char *gzoption;
*type = 0;
*retname = '\0';
if (pipeok)
gzoption = "-c"; /* tell gunzip to output to stdout */
else
gzoption = "";
/* see if the filename ends with .Z or .z or .gz */
if ((strlen(name) > 3 && !strcmp(".gz", name + (strlen(name)-3))) ||
((strlen(name) > 2 && !strcmp(".z", name + (strlen(name)-2))))) {
sprintf(unc,"gunzip -q %s %s", gzoption, name);
*type = 1;
/* none of the above, see if the file with .Z or .gz or .z appended exists */
} else {
strcpy(retname, name);
strcat(retname, ".Z");
if (!stat(retname, &status)) {
sprintf(unc, "gunzip %s %s", gzoption, retname);
*type = 1;
name = retname;
} else {
strcpy(retname, name);
strcat(retname, ".z");
if (!stat(retname, &status)) {
sprintf(unc, "gunzip %s %s", gzoption, retname);
*type = 1;
name = retname;
} else {
strcpy(retname, name);
strcat(retname, ".gz");
if (!stat(retname, &status)) {
sprintf(unc, "gunzip %s %s", gzoption, retname);
*type = 1;
name = retname;
}
}
}
}
/* if a pipe, but the caller needs a file, uncompress the file now */
if (*type == 1 && !pipeok) {
char *p;
system(unc);
if (p=strrchr(name,'.')) {
*p = '\0'; /* terminate name before last .gz, .z or .Z */
}
strcpy(retname, name);
/* force to plain file now */
*type = 0;
}
/* no appendages, just see if it exists */
/* and restore the original name */
strcpy(retname, name);
if (stat(name, &status) != 0) {
fstream = NULL;
} else {
switch (*type) {
case 0:
fstream = fopen(name, "rb");
break;
case 1:
fstream = popen(unc,"r");
break;
}
}
return fstream;
}
void
close_picfile(file,type)
FILE *file;
int type;
{
if (type == 0)
fclose(file);
else
pclose(file);
}
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