mirror of
https://github.com/freebsd/freebsd-src
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170 lines
4.4 KiB
C
170 lines
4.4 KiB
C
/*
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* Adapted from: apptype.c, Written by Eberhard Mattes and put into the
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* public domain
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*
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* Notes: 1. Qualify the filename so that DosQueryAppType does not do extraneous
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* searches.
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*
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* 2. DosQueryAppType will return FAPPTYP_DOS on a file ending with ".com"
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* (other than an OS/2 exe or Win exe with this name). Eberhard Mattes
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* remarks Tue, 6 Apr 93: Moreover, it reports the type of the (new and very
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* bug ridden) Win Emacs as "OS/2 executable".
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*
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* 3. apptype() uses the filename if given, otherwise a tmp file is created with
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* the contents of buf. If buf is not the complete file, apptype can
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* incorrectly identify the exe type. The "-z" option of "file" is the reason
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* for this ugly code.
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*/
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/*
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* amai: Darrel Hankerson did the changes described here.
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*
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* It remains to check the validity of comments (2.) since it's referred to an
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* "old" OS/2 version.
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*
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*/
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#include "file.h"
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#ifndef lint
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FILE_RCSID("@(#)$File: apptype.c,v 1.13 2011/09/07 21:57:15 christos Exp $")
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#endif /* lint */
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#include <stdlib.h>
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#include <string.h>
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#ifdef __EMX__
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#include <io.h>
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#define INCL_DOSSESMGR
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#define INCL_DOSERRORS
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#define INCL_DOSFILEMGR
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#include <os2.h>
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typedef ULONG APPTYPE;
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protected int
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file_os2_apptype(struct magic_set *ms, const char *fn, const void *buf,
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size_t nb)
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{
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APPTYPE rc, type;
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char path[_MAX_PATH], drive[_MAX_DRIVE], dir[_MAX_DIR],
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fname[_MAX_FNAME], ext[_MAX_EXT];
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char *filename;
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FILE *fp;
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if (fn)
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filename = strdup(fn);
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else if ((filename = tempnam("./", "tmp")) == NULL) {
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file_error(ms, errno, "cannot create tempnam");
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return -1;
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}
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/* qualify the filename to prevent extraneous searches */
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_splitpath(filename, drive, dir, fname, ext);
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(void)sprintf(path, "%s%s%s%s", drive,
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(*dir == '\0') ? "./" : dir,
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fname,
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(*ext == '\0') ? "." : ext);
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if (fn == NULL) {
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if ((fp = fopen(path, "wb")) == NULL) {
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file_error(ms, errno, "cannot open tmp file `%s'", path);
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return -1;
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}
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if (fwrite(buf, 1, nb, fp) != nb) {
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file_error(ms, errno, "cannot write tmp file `%s'",
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path);
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(void)fclose(fp);
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return -1;
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}
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(void)fclose(fp);
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}
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rc = DosQueryAppType((unsigned char *)path, &type);
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if (fn == NULL) {
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unlink(path);
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free(filename);
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}
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#if 0
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if (rc == ERROR_INVALID_EXE_SIGNATURE)
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printf("%s: not an executable file\n", fname);
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else if (rc == ERROR_FILE_NOT_FOUND)
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printf("%s: not found\n", fname);
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else if (rc == ERROR_ACCESS_DENIED)
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printf("%s: access denied\n", fname);
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else if (rc != 0)
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printf("%s: error code = %lu\n", fname, rc);
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else
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#else
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/*
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* for our purpose here it's sufficient to just ignore the error and
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* return w/o success (=0)
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*/
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if (rc)
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return (0);
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#endif
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if (type & FAPPTYP_32BIT)
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if (file_printf(ms, "32-bit ") == -1)
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return -1;
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if (type & FAPPTYP_PHYSDRV) {
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if (file_printf(ms, "physical device driver") == -1)
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return -1;
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} else if (type & FAPPTYP_VIRTDRV) {
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if (file_printf(ms, "virtual device driver") == -1)
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return -1;
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} else if (type & FAPPTYP_DLL) {
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if (type & FAPPTYP_PROTDLL)
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if (file_printf(ms, "protected ") == -1)
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return -1;
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if (file_printf(ms, "DLL") == -1)
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return -1;
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} else if (type & (FAPPTYP_WINDOWSREAL | FAPPTYP_WINDOWSPROT)) {
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if (file_printf(ms, "Windows executable") == -1)
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return -1;
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} else if (type & FAPPTYP_DOS) {
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/*
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* The API routine is partially broken on filenames ending
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* ".com".
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*/
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if (stricmp(ext, ".com") == 0)
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if (strncmp((const char *)buf, "MZ", 2))
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return (0);
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if (file_printf(ms, "DOS executable") == -1)
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return -1;
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/* ---------------------------------------- */
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/* Might learn more from the magic(4) entry */
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if (file_printf(ms, ", magic(4)-> ") == -1)
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return -1;
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return (0);
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/* ---------------------------------------- */
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} else if (type & FAPPTYP_BOUND) {
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if (file_printf(ms, "bound executable") == -1)
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return -1;
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} else if ((type & 7) == FAPPTYP_WINDOWAPI) {
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if (file_printf(ms, "PM executable") == -1)
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return -1;
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} else if (file_printf(ms, "OS/2 executable") == -1)
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return -1;
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switch (type & (FAPPTYP_NOTWINDOWCOMPAT |
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FAPPTYP_WINDOWCOMPAT |
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FAPPTYP_WINDOWAPI)) {
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case FAPPTYP_NOTWINDOWCOMPAT:
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if (file_printf(ms, " [NOTWINDOWCOMPAT]") == -1)
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return -1;
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break;
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case FAPPTYP_WINDOWCOMPAT:
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if (file_printf(ms, " [WINDOWCOMPAT]") == -1)
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return -1;
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break;
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case FAPPTYP_WINDOWAPI:
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if (file_printf(ms, " [WINDOWAPI]") == -1)
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return -1;
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break;
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}
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return 1;
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}
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#endif
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