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1.1 misho 1: /*
2: * Adapted from: apptype.c, Written by Eberhard Mattes and put into the
3: * public domain
4: *
5: * Notes: 1. Qualify the filename so that DosQueryAppType does not do extraneous
6: * searches.
7: *
8: * 2. DosQueryAppType will return FAPPTYP_DOS on a file ending with ".com"
9: * (other than an OS/2 exe or Win exe with this name). Eberhard Mattes
10: * remarks Tue, 6 Apr 93: Moreover, it reports the type of the (new and very
11: * bug ridden) Win Emacs as "OS/2 executable".
12: *
13: * 3. apptype() uses the filename if given, otherwise a tmp file is created with
14: * the contents of buf. If buf is not the complete file, apptype can
15: * incorrectly identify the exe type. The "-z" option of "file" is the reason
16: * for this ugly code.
17: */
18:
19: /*
20: * amai: Darrel Hankerson did the changes described here.
21: *
22: * It remains to check the validity of comments (2.) since it's referred to an
23: * "old" OS/2 version.
24: *
25: */
26:
27: #include "file.h"
28:
29: #ifndef lint
1.1.1.2 ! misho 30: FILE_RCSID("@(#)$File: apptype.c,v 1.13 2011/09/07 21:57:15 christos Exp $")
1.1 misho 31: #endif /* lint */
32:
33: #include <stdlib.h>
34: #include <string.h>
35:
36: #ifdef __EMX__
37: #include <io.h>
38: #define INCL_DOSSESMGR
39: #define INCL_DOSERRORS
40: #define INCL_DOSFILEMGR
41: #include <os2.h>
42: typedef ULONG APPTYPE;
43:
44: protected int
45: file_os2_apptype(struct magic_set *ms, const char *fn, const void *buf,
46: size_t nb)
47: {
48: APPTYPE rc, type;
49: char path[_MAX_PATH], drive[_MAX_DRIVE], dir[_MAX_DIR],
50: fname[_MAX_FNAME], ext[_MAX_EXT];
51: char *filename;
52: FILE *fp;
53:
54: if (fn)
55: filename = strdup(fn);
56: else if ((filename = tempnam("./", "tmp")) == NULL) {
57: file_error(ms, errno, "cannot create tempnam");
58: return -1;
59: }
60: /* qualify the filename to prevent extraneous searches */
61: _splitpath(filename, drive, dir, fname, ext);
62: (void)sprintf(path, "%s%s%s%s", drive,
63: (*dir == '\0') ? "./" : dir,
64: fname,
65: (*ext == '\0') ? "." : ext);
66:
67: if (fn == NULL) {
68: if ((fp = fopen(path, "wb")) == NULL) {
69: file_error(ms, errno, "cannot open tmp file `%s'", path);
70: return -1;
71: }
72: if (fwrite(buf, 1, nb, fp) != nb) {
73: file_error(ms, errno, "cannot write tmp file `%s'",
74: path);
1.1.1.2 ! misho 75: (void)fclose(fp);
1.1 misho 76: return -1;
77: }
78: (void)fclose(fp);
79: }
80: rc = DosQueryAppType((unsigned char *)path, &type);
81:
82: if (fn == NULL) {
83: unlink(path);
84: free(filename);
85: }
86: #if 0
87: if (rc == ERROR_INVALID_EXE_SIGNATURE)
88: printf("%s: not an executable file\n", fname);
89: else if (rc == ERROR_FILE_NOT_FOUND)
90: printf("%s: not found\n", fname);
91: else if (rc == ERROR_ACCESS_DENIED)
92: printf("%s: access denied\n", fname);
93: else if (rc != 0)
94: printf("%s: error code = %lu\n", fname, rc);
95: else
96: #else
97:
98: /*
99: * for our purpose here it's sufficient to just ignore the error and
100: * return w/o success (=0)
101: */
102:
103: if (rc)
104: return (0);
105:
106: #endif
107:
108: if (type & FAPPTYP_32BIT)
109: if (file_printf(ms, "32-bit ") == -1)
110: return -1;
111: if (type & FAPPTYP_PHYSDRV) {
112: if (file_printf(ms, "physical device driver") == -1)
113: return -1;
114: } else if (type & FAPPTYP_VIRTDRV) {
115: if (file_printf(ms, "virtual device driver") == -1)
116: return -1;
117: } else if (type & FAPPTYP_DLL) {
118: if (type & FAPPTYP_PROTDLL)
119: if (file_printf(ms, "protected ") == -1)
120: return -1;
121: if (file_printf(ms, "DLL") == -1)
122: return -1;
123: } else if (type & (FAPPTYP_WINDOWSREAL | FAPPTYP_WINDOWSPROT)) {
124: if (file_printf(ms, "Windows executable") == -1)
125: return -1;
126: } else if (type & FAPPTYP_DOS) {
127: /*
128: * The API routine is partially broken on filenames ending
129: * ".com".
130: */
131: if (stricmp(ext, ".com") == 0)
132: if (strncmp((const char *)buf, "MZ", 2))
133: return (0);
134: if (file_printf(ms, "DOS executable") == -1)
135: return -1;
136: /* ---------------------------------------- */
137: /* Might learn more from the magic(4) entry */
138: if (file_printf(ms, ", magic(4)-> ") == -1)
139: return -1;
140: return (0);
141: /* ---------------------------------------- */
142: } else if (type & FAPPTYP_BOUND) {
143: if (file_printf(ms, "bound executable") == -1)
144: return -1;
145: } else if ((type & 7) == FAPPTYP_WINDOWAPI) {
146: if (file_printf(ms, "PM executable") == -1)
147: return -1;
148: } else if (file_printf(ms, "OS/2 executable") == -1)
149: return -1;
150:
151: switch (type & (FAPPTYP_NOTWINDOWCOMPAT |
152: FAPPTYP_WINDOWCOMPAT |
153: FAPPTYP_WINDOWAPI)) {
154: case FAPPTYP_NOTWINDOWCOMPAT:
155: if (file_printf(ms, " [NOTWINDOWCOMPAT]") == -1)
156: return -1;
157: break;
158: case FAPPTYP_WINDOWCOMPAT:
159: if (file_printf(ms, " [WINDOWCOMPAT]") == -1)
160: return -1;
161: break;
162: case FAPPTYP_WINDOWAPI:
163: if (file_printf(ms, " [WINDOWAPI]") == -1)
164: return -1;
165: break;
166: }
167: return 1;
168: }
169: #endif