bin/unzip/cryptf.c

84 #  ifdef GLOBAL         /* used in Amiga system headers, maybe others too */
85 #    undef GLOBAL
87 #  define GLOBAL(g) g
89 #  define GLOBAL(g) G.g
129     temp = ((unsigned)GLOBAL(keys[2]) & 0xffff) | 2;
140     GLOBAL(keys[0]) = CRC32(GLOBAL(keys[0]), c);
141     GLOBAL(keys[1]) += GLOBAL(keys[0]) & 0xff;
142     GLOBAL(keys[1]) = GLOBAL(keys[1]) * 134775813L + 1;
144       register int keyshift = (int)(GLOBAL(keys[1]) >> 24);
145       GLOBAL(keys[2]) = CRC32(GLOBAL(keys[2]), keyshift);
159     GLOBAL(keys[0]) = 305419896L;
160     GLOBAL(keys[1]) = 591751049L;
161     GLOBAL(keys[2]) = 878082192L;
394     Trace((stdout, "\n[incnt = %d]: ", GLOBAL(incnt)));
398     GLOBAL(pInfo->encrypted) = FALSE;
406     GLOBAL(pInfo->encrypted) = TRUE;
408     if (GLOBAL(newzip)) { /* this is first encrypted member in this zipfile */
409         GLOBAL(newzip) = FALSE;
411             if (!GLOBAL(key)) {
412                 if ((GLOBAL(key) = (char *)malloc(strlen(passwrd)+1)) ==
415                 strcpy(GLOBAL(key), passwrd);
416                 GLOBAL(nopwd) = TRUE;  /* inhibit password prompting! */
418         } else if (GLOBAL(key)) { /* get rid of previous zipfile's key */
419             free(GLOBAL(key));
420             GLOBAL(key) = (char *)NULL;
425     if (GLOBAL(key)) {
428         else if (GLOBAL(nopwd))
430     } else if ((GLOBAL(key) = (char *)malloc(IZ_PWLEN+1)) == (char *)NULL)
436         r = (*G.decr_passwd)((zvoid *)&G, &n, GLOBAL(key), IZ_PWLEN+1,
437                              GLOBAL(zipfn), GLOBAL(filename));
439             free (GLOBAL(key));
440             GLOBAL(key) = NULL;
444             *GLOBAL(key) = '\0';        /*   We try the NIL password, ... */
450             GLOBAL(nopwd) = TRUE;       /*   inhibit any further PW prompt! */
475     if ((key_translated = malloc(strlen(GLOBAL(key)) + 1)) == (char *)NULL)
478     r = testkey(__G__ h, STR_TO_CP1(key_translated, GLOBAL(key)));
481     r = testkey(__G__ h, GLOBAL(key));
488         if ((key_translated = malloc(strlen(GLOBAL(key)) + 1)) == (char *)NULL)
492         r = testkey(__G__ h, STR_TO_CP2(key_translated, GLOBAL(key)));
496             r = testkey(__G__ h, STR_TO_CP3(key_translated, GLOBAL(key)));
508         r = testkey(__G__ h, GLOBAL(key));
542       GLOBAL(lrec.crc32), GLOBAL(pInfo->crc),
543       GLOBAL(pInfo->ExtLocHdr) ? "true":"false"));
545       GLOBAL(incnt),
546       GLOBAL(cur_zipfile_bufstart)+(GLOBAL(inptr)-GLOBAL(inbuf))));
554       (ush)(c | (b<<8)), (ush)(GLOBAL(lrec.crc32) >> 16),
555       ((ush)GLOBAL(lrec.last_mod_dos_datetime) & 0xffff))));
556     if ((ush)(c | (b<<8)) != (GLOBAL(pInfo->ExtLocHdr) ?
557                            ((ush)GLOBAL(lrec.last_mod_dos_datetime) & 0xffff) :
558                            (ush)(GLOBAL(lrec.crc32) >> 16)))
563       b, (ush)(GLOBAL(lrec.crc32) >> 24),
564       ((ush)GLOBAL(lrec.last_mod_dos_datetime) >> 8) & 0xff));
565     if (b != (GLOBAL(pInfo->ExtLocHdr) ?
566         ((ush)GLOBAL(lrec.last_mod_dos_datetime) >> 8) & 0xff :
567         (ush)(GLOBAL(lrec.crc32) >> 24)))
571     for (n = (long)GLOBAL(incnt) > GLOBAL(csize) ?
572              (int)GLOBAL(csize) : GLOBAL(incnt),
573          p = GLOBAL(inptr); n--; p++)