Annotation of embedaddon/php/ext/fileinfo/libmagic/apptype.c, revision 1.1
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
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