netsurf/riscos/filetype.c

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/*
* This file is part of NetSurf, http://netsurf.sourceforge.net/
* Licensed under the GNU General Public License,
* http://www.opensource.org/licenses/gpl-license
* Copyright 2003 James Bursa <bursa@users.sourceforge.net>
*/
#include <stdlib.h>
#include <unixlib/local.h>
#include "oslib/osfile.h"
#include "netsurf/content/fetch.h"
#include "netsurf/utils/log.h"
#include "netsurf/utils/utils.h"
/* type_map must be in sorted order by file_type */
struct type_entry {
bits file_type;
char mime_type[16];
};
static const struct type_entry type_map[] = {
{0x695, "image/gif"},
{0xb60, "image/png"},
{0xc85, "image/jpeg"},
{0xf79, "text/css"},
{0xfaf, "text/html"},
{0xfff, "text/plain"},
};
#define TYPE_MAP_COUNT (sizeof(type_map) / sizeof(type_map[0]))
static int cmp_type(const void *x, const void *y);
/**
* filetype -- determine the MIME type of a local file
*/
const char *fetch_filetype(const char *unix_path)
{
struct type_entry *t;
unsigned int len = strlen(unix_path) + 100;
char *path = xcalloc(len, 1);
char *r;
os_error *error;
bits file_type;
LOG(("unix_path = '%s'", unix_path));
/* convert path to RISC OS format and read file type */
r = __riscosify(unix_path, 0, 0, path, len, 0);
if (r == 0) {
LOG(("__riscosify failed"));
return "application/riscos";
}
LOG(("riscos path '%s'", path));
error = xosfile_read_stamped_no_path(path, 0, 0, 0, 0, 0, &file_type);
if (error != 0) {
LOG(("xosfile_read_stamped_no_path failed: %s", error->errmess));
return "application/riscos";
}
/* search for MIME type */
t = bsearch(&file_type, type_map, TYPE_MAP_COUNT, sizeof(type_map[0]), cmp_type);
if (t == 0)
return "application/riscos";
LOG(("mime type '%s'", t->mime_type));
return t->mime_type;
}
int cmp_type(const void *x, const void *y)
{
const bits *p = x;
const struct type_entry *q = y;
return *p < q->file_type ? -1 : (*p == q->file_type ? 0 : +1);
}