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/*
TiMidity++ -- MIDI to WAVE converter and player
Copyright (C) 1999,2000 Masanao Izumo <mo@goice.co.jp>
Copyright (C) 1995 Tuukka Toivonen <tt@cgs.fi>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
#include <stdio.h>
#include <stdlib.h>
#ifndef NO_STRING_H
#include <string.h>
#else
#include <strings.h>
#endif
#include "timidity.h"
#include "url.h"
#ifdef HAVE_POPEN
/* It is not supported command PIPE at Windows */
typedef struct _URL_pipe
{
char common[sizeof(struct _URL)];
FILE *fp;
} URL_pipe;
#define PIPE_FP(url) (((URL_pipe *)(url))->fp)
static int name_pipe_check(char *url_string);
static long url_pipe_read(URL url, void *buff, long n);
static char *url_pipe_gets(URL url, char *buff, int n);
static int url_pipe_fgetc(URL url);
static void url_pipe_close(URL url);
struct URL_module URL_module_pipe =
{
URL_pipe_t, /* type */
name_pipe_check, /* URL checker */
NULL, /* initializer */
url_pipe_open, /* open */
NULL /* must be NULL */
};
/* url_string := "command|" */
static int name_pipe_check(char *url_string)
{
#ifdef PIPE_SCHEME_ENABLE
char *p;
p = strrchr(url_string, '|');
if(p == NULL)
return 0;
p++;
while(*p == ' ')
p++;
return *p == '\0';
#else
return 0;
#endif
}
URL url_pipe_open(char *command)
{
URL_pipe *url;
char buff[BUFSIZ], *p;
strncpy(buff, command, sizeof(buff));
buff[sizeof(buff) - 1] = '\0';
p = strrchr(buff, '|');
if(p != NULL)
{
char *q;
q = p + 1;
while(*q == ' ')
q++;
if(*q == '\0')
{
p--;
while(buff < p && *p == ' ')
p--;
if(buff == p)
{
errno = ENOENT;
url_errno = URLERR_IURLF;
return NULL;
}
p[1] = '\0';
}
}
url = (URL_pipe *)alloc_url(sizeof(URL_pipe));
if(url == NULL)
{
url_errno = errno;
return NULL;
}
/* common members */
URLm(url, type) = URL_pipe_t;
URLm(url, url_read) = url_pipe_read;
URLm(url, url_gets) = url_pipe_gets;
URLm(url, url_fgetc) = url_pipe_fgetc;
URLm(url, url_seek) = NULL;
URLm(url, url_tell) = NULL;
URLm(url, url_close) = url_pipe_close;
/* private members */
url->fp = NULL;
if((url->fp = popen(buff, "r")) == NULL)
{
url_pipe_close((URL)url);
url_errno = errno;
return NULL;
}
return (URL)url;
}
static long url_pipe_read(URL url, void *buff, long n)
{
return (long)fread(buff, 1, n, PIPE_FP(url));
}
static char *url_pipe_gets(URL url, char *buff, int n)
{
return fgets(buff, n, PIPE_FP(url));
}
static int url_pipe_fgetc(URL url)
{
#ifdef getc
return getc(PIPE_FP(url));
#else
return fgetc(PIPE_FP(url));
#endif /* getc */
}
static void url_pipe_close(URL url)
{
int save_errno = errno;
if(PIPE_FP(url) != NULL)
pclose(PIPE_FP(url));
free(url);
errno = save_errno;
}
#else /* HAVE_POPEN */
struct URL_module URL_module_pipe =
{
URL_none_t, /* type */
NULL, /* URL checker */
NULL, /* initializer */
NULL, /* open */
NULL /* must be NULL */
};
URL url_pipe_open(char *command) { return NULL; } /* dmy */
#endif
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