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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
30: FILE_RCSID("@(#)$File: apptype.c,v 1.11 2009/02/04 18:24:32 christos Exp $")
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);
75: return -1;
76: }
77: (void)fclose(fp);
78: }
79: rc = DosQueryAppType((unsigned char *)path, &type);
80:
81: if (fn == NULL) {
82: unlink(path);
83: free(filename);
84: }
85: #if 0
86: if (rc == ERROR_INVALID_EXE_SIGNATURE)
87: printf("%s: not an executable file\n", fname);
88: else if (rc == ERROR_FILE_NOT_FOUND)
89: printf("%s: not found\n", fname);
90: else if (rc == ERROR_ACCESS_DENIED)
91: printf("%s: access denied\n", fname);
92: else if (rc != 0)
93: printf("%s: error code = %lu\n", fname, rc);
94: else
95: #else
96:
97: /*
98: * for our purpose here it's sufficient to just ignore the error and
99: * return w/o success (=0)
100: */
101:
102: if (rc)
103: return (0);
104:
105: #endif
106:
107: if (type & FAPPTYP_32BIT)
108: if (file_printf(ms, "32-bit ") == -1)
109: return -1;
110: if (type & FAPPTYP_PHYSDRV) {
111: if (file_printf(ms, "physical device driver") == -1)
112: return -1;
113: } else if (type & FAPPTYP_VIRTDRV) {
114: if (file_printf(ms, "virtual device driver") == -1)
115: return -1;
116: } else if (type & FAPPTYP_DLL) {
117: if (type & FAPPTYP_PROTDLL)
118: if (file_printf(ms, "protected ") == -1)
119: return -1;
120: if (file_printf(ms, "DLL") == -1)
121: return -1;
122: } else if (type & (FAPPTYP_WINDOWSREAL | FAPPTYP_WINDOWSPROT)) {
123: if (file_printf(ms, "Windows executable") == -1)
124: return -1;
125: } else if (type & FAPPTYP_DOS) {
126: /*
127: * The API routine is partially broken on filenames ending
128: * ".com".
129: */
130: if (stricmp(ext, ".com") == 0)
131: if (strncmp((const char *)buf, "MZ", 2))
132: return (0);
133: if (file_printf(ms, "DOS executable") == -1)
134: return -1;
135: /* ---------------------------------------- */
136: /* Might learn more from the magic(4) entry */
137: if (file_printf(ms, ", magic(4)-> ") == -1)
138: return -1;
139: return (0);
140: /* ---------------------------------------- */
141: } else if (type & FAPPTYP_BOUND) {
142: if (file_printf(ms, "bound executable") == -1)
143: return -1;
144: } else if ((type & 7) == FAPPTYP_WINDOWAPI) {
145: if (file_printf(ms, "PM executable") == -1)
146: return -1;
147: } else if (file_printf(ms, "OS/2 executable") == -1)
148: return -1;
149:
150: switch (type & (FAPPTYP_NOTWINDOWCOMPAT |
151: FAPPTYP_WINDOWCOMPAT |
152: FAPPTYP_WINDOWAPI)) {
153: case FAPPTYP_NOTWINDOWCOMPAT:
154: if (file_printf(ms, " [NOTWINDOWCOMPAT]") == -1)
155: return -1;
156: break;
157: case FAPPTYP_WINDOWCOMPAT:
158: if (file_printf(ms, " [WINDOWCOMPAT]") == -1)
159: return -1;
160: break;
161: case FAPPTYP_WINDOWAPI:
162: if (file_printf(ms, " [WINDOWAPI]") == -1)
163: return -1;
164: break;
165: }
166: return 1;
167: }
168: #endif