--- /dev/null
+/*
+ * Adapted from: apptype.c, Written by Eberhard Mattes and put into the
+ * 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.
+ *
+ */
+
+#ifdef __EMX__
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <io.h>
+#define INCL_DOSSESMGR
+#define INCL_DOSERRORS
+#define INCL_DOSFILEMGR
+#include <os2.h>
+typedef ULONG APPTYPE;
+
+#include "file.h"
+
+#ifndef lint
+FILE_RCSID("@(#)$Id: apptype.c,v 1.1 2003/03/24 01:34:21 christos Exp $")
+#endif /* lint */
+
+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];
+#endif
+ char *filename;
+ FILE *fp;
+
+ if (fn)
+ filename = strdup(fn);
+ else if ((filename = tempnam("./", "tmp")) == NULL) {
+ error("can't create tempnam (%s).\n", strerror(errno));
+ }
+ /* qualify the filename to prevent extraneous searches */
+ _splitpath(filename, drive, dir, fname, ext);
+ 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("Can't open tmp file `%s' (%s)", path,
+ strerror(errno));
+ return -1;
+ }
+ if (fwrite(buf, 1, nb, fp) != nb) {
+ file_error("Can't write tmp file `%s' (%s)", path,
+ strerror(errno));
+ return -1;
+ }
+ (void)fclose(fp);
+ }
+ rc = DosQueryAppType(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, "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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