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/*
* Adapted from: apptype.c, Written by Eberhard Mattes and put into the
* file_public domain
*
* Notes: 1. Qualify the filename so that DosQueryAppType does not do extraneous
* searches.
*
* 2. DosQueryAppType will return FAPPTYP_DOS on a file ending with ".com"
* (other than an OS/2 exe or Win exe with this name). Eberhard Mattes
* remarks Tue, 6 Apr 93: Moreover, it reports the type of the (new and very
* bug ridden) Win Emacs as "OS/2 executable".
*
* 3. apptype() uses the filename if given, otherwise a tmp file is created with
* the contents of buf. If buf is not the complete file, apptype can
* incorrectly identify the exe type. The "-z" option of "file" is the reason
* for this ugly code.
*/
/*
* amai: Darrel Hankerson did the changes described here.
*
* It remains to check the validity of comments (2.) since it's referred to an
* "old" OS/2 version.
*
*/
#include "file.h"
#ifndef lint
FILE_RCSID("@(#)$File: apptype.c,v 1.17 2022/12/26 17:31:14 christos Exp $")
#endif /* lint */
#include <stdlib.h>
#include <string.h>
#ifdef __EMX__
#include <io.h>
#define INCL_DOSSESMGR
#define INCL_DOSERRORS
#define INCL_DOSFILEMGR
#include <os2.h>
typedef ULONG APPTYPE;
file_protected int
file_os2_apptype(struct magic_set *ms, const char *fn, const void *buf,
size_t nb)
{
APPTYPE rc, type;
char path[_MAX_PATH], drive[_MAX_DRIVE], dir[_MAX_DIR],
fname[_MAX_FNAME], ext[_MAX_EXT];
char *filename;
FILE *fp;
if (fn)
filename = strdup(fn);
else if ((filename = tempnam("./", "tmp")) == NULL) {
file_error(ms, errno, "cannot create tempnam");
return -1;
}
/* qualify the filename to prevent extraneous searches */
_splitpath(filename, drive, dir, fname, ext);
(void)sprintf(path, "%s%s%s%s", drive,
(*dir == '\0') ? "./" : dir,
fname,
(*ext == '\0') ? "." : ext);
if (fn == NULL) {
if ((fp = fopen(path, "wb")) == NULL) {
file_error(ms, errno, "cannot open tmp file `%s'", path);
return -1;
}
if (fwrite(buf, 1, nb, fp) != nb) {
file_error(ms, errno, "cannot write tmp file `%s'",
path);
(void)fclose(fp);
return -1;
}
(void)fclose(fp);
}
rc = DosQueryAppType((unsigned char *)path, &type);
if (fn == NULL) {
unlink(path);
free(filename);
}
#if 0
if (rc == ERROR_INVALID_EXE_SIGNATURE)
printf("%s: not an executable file\n", fname);
else if (rc == ERROR_FILE_NOT_FOUND)
printf("%s: not found\n", fname);
else if (rc == ERROR_ACCESS_DENIED)
printf("%s: access denied\n", fname);
else if (rc != 0)
printf("%s: error code = %lu\n", fname, rc);
else
#else
/*
* for our purpose here it's sufficient to just ignore the error and
* return w/o success (=0)
*/
if (rc)
return (0);
#endif
if (type & FAPPTYP_32BIT)
if (file_printf(ms, "32-bit ") == -1)
return -1;
if (type & FAPPTYP_PHYSDRV) {
if (file_printf(ms, "physical device driver") == -1)
return -1;
} else if (type & FAPPTYP_VIRTDRV) {
if (file_printf(ms, "virtual device driver") == -1)
return -1;
} else if (type & FAPPTYP_DLL) {
if (type & FAPPTYP_PROTDLL)
if (file_printf(ms, "file_protected ") == -1)
return -1;
if (file_printf(ms, "DLL") == -1)
return -1;
} else if (type & (FAPPTYP_WINDOWSREAL | FAPPTYP_WINDOWSPROT)) {
if (file_printf(ms, "Windows executable") == -1)
return -1;
} else if (type & FAPPTYP_DOS) {
/*
* The API routine is partially broken on filenames ending
* ".com".
*/
if (stricmp(ext, ".com") == 0)
if (strncmp((const char *)buf, "MZ", 2))
return (0);
if (file_printf(ms, "DOS executable") == -1)
return -1;
/* ---------------------------------------- */
/* Might learn more from the magic(4) entry */
if (file_printf(ms, ", magic(4)-> ") == -1)
return -1;
return (0);
/* ---------------------------------------- */
} else if (type & FAPPTYP_BOUND) {
if (file_printf(ms, "bound executable") == -1)
return -1;
} else if ((type & 7) == FAPPTYP_WINDOWAPI) {
if (file_printf(ms, "PM executable") == -1)
return -1;
} else if (file_printf(ms, "OS/2 executable") == -1)
return -1;
switch (type & (FAPPTYP_NOTWINDOWCOMPAT |
FAPPTYP_WINDOWCOMPAT |
FAPPTYP_WINDOWAPI)) {
case FAPPTYP_NOTWINDOWCOMPAT:
if (file_printf(ms, " [NOTWINDOWCOMPAT]") == -1)
return -1;
break;
case FAPPTYP_WINDOWCOMPAT:
if (file_printf(ms, " [WINDOWCOMPAT]") == -1)
return -1;
break;
case FAPPTYP_WINDOWAPI:
if (file_printf(ms, " [WINDOWAPI]") == -1)
return -1;
break;
}
return 1;
}
#endif
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