/* Copyright (c) 1990-2007 Info-ZIP. All rights reserved. See the accompanying file LICENSE, version 2000-Apr-09 or later (the contents of which are also included in unzip.h) for terms of use. If, for some reason, these files are missing, the Info-ZIP license also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html */ /*--------------------------------------------------------------------------- qdos.c QDOS-specific routines for use with Info-ZIP's UnZip 5.3 and later. Contains: Qstrfix() QFilename() QMatch() chowner() Qgetch() QReturn() LastDir() screensize() do_wild() <-- generic enough to put in file_io.c? mapattr() mapname() checkdir() qfix() close_outfile() stamp_file() getp() version() ---------------------------------------------------------------------------*/ #define UNZIP_INTERNAL #include "unzip.h" #include "crypt.h" #include "ttyio.h" #include #include "izqdos.h" #include "unzvers.h" #ifndef SFX char _prog_name[] = "UnZip"; #else char _prog_name[] = "??Special Flag for unzipsfx hack ??"; #endif /* sorrid hack at request of GRR follows; hope the compiler stays kind to us */ char _version[] = {UZ_MAJORVER+'0','.',UZ_MINORVER+'0',UZ_PATCHLEVEL+'0'}; char _extra[] = " " UZ_BETALEVEL; char _copyright[] = "(c) Info-ZIP Group"; char * _endmsg = NULL; long _stack = 16*1024; /* huge stack (for qdos) */ extern void consetup_title(chanid_t,struct WINDOWDEF *); void (*_consetup)(chanid_t,struct WINDOWDEF *) = consetup_title; struct WINDOWDEF _condetails = { 2, 1, 0, 7, 500, 220, 2, 30 }; static jobid_t chowner(chanid_t chan) { extern char *_sys_var; char *scht; long *cdb; long jid; scht = *((char **)(_sys_var + 0x78)); cdb = *(long **)((long *)scht + (chan & 0xffff)); jid = *(cdb + 2); return jid; } int QReturn(int err) { jobid_t me,you; me = getpid(); you = chowner(getchid(0)); if((me == you) && ((qlflag & 4) == 0)) { if(isatty(0) && isatty(2) && qlwait) { char c = 0; fputs("Press a key to exit", stderr); if((io_fbyte(getchid(0), qlwait, &c) == 0) && c == 27) { io_fbyte(getchid(0), -1, &c); } } } if(err > 0) err = -err; /* We like -ve err nos (exclusively, alas) */ exit(err); } #ifndef FUNZIP static int created_dir; /* used in mapname(), checkdir() */ static int renamed_fullpath; /* ditto */ char *Qstrfix (char *p) { char *q; for (q = p; (q = strstr(q, ".zip"));) { *q = '_'; q += 4; } return p; } void QFilename(char *f) { char *o,*p,*q = strdup(f); p = q; if(*q == '.' && *(q+1) == '/') q += 2; o = q; for(;*q;q++) { if(*q == '/') *q = '_'; if((qlflag & 1) == 0) { if(*q == '.') *q = '_'; } } strcpy(f,o); free(p); } int QMatch(uch c1, uch c2) { int m =0; if(c1 != c2) { if(c1 == '_' && (c2 == '.' || c2 == '/')) { m = 1; } } else { m = 1; } return m; } int Qgetch(void) { char ch; if(io_fbyte(getchid(0), -1, &ch) < 0) { return EOF; } else { return (int) ch; } } int screensize(int *tt_rows, int *tt_cols) { QLRECT_t rect; if(0 == sd_chenq(getchid(1), -1, &rect)) { if(tt_cols) *tt_cols = rect.q_width; if(tt_rows) *tt_rows = rect.q_height; } else { if(tt_cols) *tt_cols = 80; if(tt_rows) *tt_rows = 24; } return 0; } #ifndef SFX char *LastDir(char *ws) { char *p; char *q = ws; struct stat s; for(p = ws; *p; p++) { if(*p == '_') { char c; p++; c = *p; *p = 0; if(stat(ws, &s) == 0 && S_ISDIR(s.st_mode)) { q = p; } *p = c; } } return q; } /**********************/ /* Function do_wild() */ /* for porting: dir separator; match(ignore_case) */ /**********************/ char *do_wild(__G__ wildspec) __GDEF ZCONST char *wildspec; /* only used first time on a given dir */ { static DIR *wild_dir = (DIR *)NULL; static ZCONST char *wildname; static char *dirname, matchname[FILNAMSIZ]; static int notfirstcall=FALSE, have_dirname, dirnamelen; struct dirent *file; char basedir[40]; /* Even when we're just returning wildspec, we *always* do so in * matchname[]--calling routine is allowed to append four characters * to the returned string, and wildspec may be a pointer to argv[]. */ if (!notfirstcall) { /* first call: must initialize everything */ char *ws = NULL, *us = NULL; notfirstcall = TRUE; /* break the wildspec into a directory part and a wildcard filename */ ws = (char *) iswild(wildspec); if(ws == NULL) { strncpy(matchname, wildspec, FILNAMSIZ); matchname[FILNAMSIZ-1] = '\0'; return matchname; } us = LastDir(wildspec); if(us == wildspec) { dirname = basedir; getcwd(basedir, sizeof(basedir)-1); dirnamelen = strlen(basedir); have_dirname = FALSE; wildname = wildspec; } else { wildname = us; /* point at character after '/' */ dirnamelen = wildname - wildspec; if ((dirname = (char *)malloc(dirnamelen+1)) == (char *)NULL) { Info(slide, 0x201, ((char *)slide, "warning: cannot allocate wildcard buffers\n")); strncpy(matchname, wildspec, FILNAMSIZ); matchname[FILNAMSIZ-1] = '\0'; return matchname; /* but maybe filespec was not a wildcard */ } strncpy(dirname, wildspec, dirnamelen); dirname[dirnamelen] = '\0'; /* terminate for strcpy below */ have_dirname = TRUE; } if ((wild_dir = opendir(dirname)) != (DIR *)NULL) { while ((file = readdir(wild_dir)) != (struct dirent *)NULL) { if (match(file->d_name, wildname, 0 WISEP)) { /* 0=case sens.*/ if (have_dirname) { strcpy(matchname, dirname); strcpy(matchname+dirnamelen, file->d_name); } else strcpy(matchname, file->d_name); return matchname; } } /* if we get to here directory is exhausted, so close it */ closedir(wild_dir); wild_dir = (DIR *)NULL; } /* return the raw wildspec in case that works (e.g., directory not * searchable, but filespec was not wild and file is readable) */ strncpy(matchname, wildspec, FILNAMSIZ); matchname[FILNAMSIZ-1] = '\0'; return matchname; } /* last time through, might have failed opendir but returned raw wildspec */ if (wild_dir == (DIR *)NULL) { notfirstcall = FALSE; /* nothing left to try--reset for new wildspec */ if (have_dirname) free(dirname); return (char *)NULL; } /* If we've gotten this far, we've read and matched at least one entry * successfully (in a previous call), so dirname has been copied into * matchname already. */ while ((file = readdir(wild_dir)) != (struct dirent *)NULL) { if (match(file->d_name, wildname, 0 WISEP)) { /* 0 == case sens. */ if (have_dirname) { /* strcpy(matchname, dirname); */ strcpy(matchname+dirnamelen, file->d_name); } else strcpy(matchname, file->d_name); return matchname; } } closedir(wild_dir); /* have read at least one entry; nothing left */ wild_dir = (DIR *)NULL; notfirstcall = FALSE; /* reset for new wildspec */ if (have_dirname) free(dirname); return (char *)NULL; } /* end function do_wild() */ #endif /* !SFX */ /**********************/ /* Function mapattr() */ /**********************/ int mapattr(__G) __GDEF { ulg tmp = G.crec.external_file_attributes; switch (G.pInfo->hostnum) { case AMIGA_: tmp = (unsigned)(tmp>>17 & 7); /* Amiga RWE bits */ G.pInfo->file_attr = (unsigned)(tmp<<6 | tmp<<3 | tmp); break; case THEOS_: tmp &= 0xF1FFFFFFL; if ((tmp & 0xF0000000L) != 0x40000000L) tmp &= 0x01FFFFFFL; /* not a dir, mask all ftype bits */ else tmp &= 0x41FFFFFFL; /* leave directory bit as set */ /* fall through! */ case QDOS_: case UNIX_: case VMS_: case ACORN_: case ATARI_: case ATHEOS_: case BEOS_: case TANDEM_: G.pInfo->file_attr = (unsigned)(tmp >> 16); if (G.pInfo->file_attr != 0 || !G.extra_field) { return 0; } else { /* Some (non-Info-ZIP) implementations of Zip for Unix and VMS (and probably others ??) leave 0 in the upper 16-bit part of the external_file_attributes field. Instead, they store file permission attributes in some extra field. As a work-around, we search for the presence of one of these extra fields and fall back to the MSDOS compatible part of external_file_attributes if one of the known e.f. types has been detected. Later, we might implement extraction of the permission bits from the VMS extra field. But for now, the work-around should be sufficient to provide "readable" extracted files. (For ASI Unix e.f., an experimental remap of the e.f. mode value IS already provided!) */ ush ebID; unsigned ebLen; uch *ef = G.extra_field; unsigned ef_len = G.crec.extra_field_length; int r = FALSE; while (!r && ef_len >= EB_HEADSIZE) { ebID = makeword(ef); ebLen = (unsigned)makeword(ef+EB_LEN); if (ebLen > (ef_len - EB_HEADSIZE)) /* discoverd some e.f. inconsistency! */ break; switch (ebID) { case EF_ASIUNIX: if (ebLen >= (EB_ASI_MODE+2)) { G.pInfo->file_attr = (unsigned)makeword(ef+(EB_HEADSIZE+EB_ASI_MODE)); /* force stop of loop: */ ef_len = (ebLen + EB_HEADSIZE); break; } /* else: fall through! */ case EF_PKVMS: /* "found nondecypherable e.f. with perm. attr" */ r = TRUE; default: break; } ef_len -= (ebLen + EB_HEADSIZE); ef += (ebLen + EB_HEADSIZE); } if (!r) return 0; } /* fall through! */ /* all remaining cases: expand MSDOS read-only bit into write perms */ case FS_FAT_: /* PKWARE's PKZip for Unix marks entries as FS_FAT_, but stores the * Unix attributes in the upper 16 bits of the external attributes * field, just like Info-ZIP's Zip for Unix. We try to use that * value, after a check for consistency with the MSDOS attribute * bits (see below). */ G.pInfo->file_attr = (unsigned)(tmp >> 16); /* fall through! */ case FS_HPFS_: case FS_NTFS_: case MAC_: case TOPS20_: default: /* Ensure that DOS subdir bit is set when the entry's name ends * in a '/'. Some third-party Zip programs fail to set the subdir * bit for directory entries. */ if ((tmp & 0x10) == 0) { extent fnlen = strlen(G.filename); if (fnlen > 0 && G.filename[fnlen-1] == '/') tmp |= 0x10; } /* read-only bit --> write perms; subdir bit --> dir exec bit */ tmp = !(tmp & 1) << 1 | (tmp & 0x10) >> 4; if ((G.pInfo->file_attr & 0700) == (unsigned)(0400 | tmp<<6)) /* keep previous G.pInfo->file_attr setting, when its "owner" * part appears to be consistent with DOS attribute flags! */ return 0; G.pInfo->file_attr = (unsigned)(0444 | tmp<<6 | tmp<<3 | tmp); break; } /* end switch (host-OS-created-by) */ /* for originating systems with no concept of "group," "other," "system": */ umask( (int)(tmp=umask(0)) ); /* apply mask to expanded r/w(/x) perms */ G.pInfo->file_attr &= ~tmp; return 0; } /* end function mapattr() */ /************************/ /* Function mapname() */ /************************/ int mapname(__G__ renamed) __GDEF int renamed; /* * returns: * MPN_OK - no problem detected * MPN_INF_TRUNC - caution (truncated filename) * MPN_INF_SKIP - info "skip entry" (dir doesn't exist) * MPN_ERR_SKIP - error -> skip entry * MPN_ERR_TOOLONG - error -> path is too long * MPN_NOMEM - error (memory allocation failed) -> skip entry * [also MPN_VOL_LABEL, MPN_CREATED_DIR] */ { char pathcomp[FILNAMSIZ]; /* path-component buffer */ char *pp, *cp=(char *)NULL; /* character pointers */ char *lastsemi=(char *)NULL; /* pointer to last semi-colon in pathcomp */ int killed_ddot = FALSE; /* is set when skipping "../" pathcomp */ int error = MPN_OK; register unsigned workch; /* hold the character being tested */ /*--------------------------------------------------------------------------- Initialize various pointers and counters and stuff. ---------------------------------------------------------------------------*/ if (G.pInfo->vollabel) return MPN_VOL_LABEL; /* can't set disk volume labels in SMS/QDOS */ /* can create path as long as not just freshening, or if user told us */ G.create_dirs = (!uO.fflag || renamed); created_dir = FALSE; /* not yet */ /* user gave full pathname: don't prepend rootpath */ renamed_fullpath = (renamed && (*G.filename == '/')); if (checkdir(__G__ (char *)NULL, INIT) == MPN_NOMEM) return MPN_NOMEM; /* initialize path buffer, unless no memory */ *pathcomp = '\0'; /* initialize translation buffer */ pp = pathcomp; /* point to translation buffer */ if (uO.jflag) /* junking directories */ cp = (char *)strrchr(G.filename, '/'); if (cp == (char *)NULL) /* no '/' or not junking dirs */ cp = G.filename; /* point to internal zipfile-member pathname */ else ++cp; /* point to start of last component of path */ /*--------------------------------------------------------------------------- Begin main loop through characters in filename. ---------------------------------------------------------------------------*/ while ((workch = (uch)*cp++) != 0) { switch (workch) { case '/': /* can assume -j flag not given */ *pp = '\0'; if (((error = checkdir(__G__ pathcomp, APPEND_DIR)) & MPN_MASK) > MPN_INF_TRUNC) return error; pp = pathcomp; /* reset conversion buffer for next piece */ lastsemi = (char *)NULL; /* leave direct. semi-colons alone */ break; case '.': if (pp == pathcomp) { /* nothing appended yet... */ if (*cp == '/') { /* don't bother appending "./" to */ ++cp; /* the path: skip behind the '/' */ break; } else if (!uO.ddotflag && *cp == '.' && cp[1] == '/') { /* "../" dir traversal detected */ cp += 2; /* skip over behind the '/' */ killed_ddot = TRUE; /* set "show message" flag */ break; } } *pp++ = (((qlflag & 1) == 0) ? '_' : '.'); break; case ';': /* VMS version (or DEC-20 attrib?) */ lastsemi = pp; *pp++ = ';'; /* keep for now; remove VMS ";##" */ break; /* later, if requested */ default: /* allow European characters in filenames: */ if (isprint(workch) || (128 <= workch && workch <= 254)) *pp++ = (char)workch; } /* end switch */ } /* end while loop */ /* Show warning when stripping insecure "parent dir" path components */ if (killed_ddot && QCOND2) { Info(slide, 0, ((char *)slide, "warning: skipped \"../\" path component(s) in %s\n", FnFilter1(G.filename))); if (!(error & ~MPN_MASK)) error = (error & MPN_MASK) | PK_WARN; } /*--------------------------------------------------------------------------- Report if directory was created (and no file to create: filename ended in '/'), check name to be sure it exists, and combine path and name be- fore exiting. ---------------------------------------------------------------------------*/ if (G.filename[strlen(G.filename) - 1] == '/') { G.filename[strlen(G.filename) - 1] = '_'; checkdir(__G__ G.filename, GETPATH); if (created_dir) { if (QCOND2) { Info(slide, 0, ((char *)slide, " creating: %s\n", FnFilter1(G.filename))); } /* set dir time (note trailing '/') */ return (error & ~MPN_MASK) | MPN_CREATED_DIR; } /* dir existed already; don't look for data to extract */ return (error & ~MPN_MASK) | MPN_INF_SKIP; } *pp = '\0'; /* done with pathcomp: terminate it */ /* if not saving them, remove VMS version numbers (appended ";###") */ if (!uO.V_flag && lastsemi) { pp = lastsemi + 1; while (isdigit((uch)(*pp))) ++pp; if (*pp == '\0') /* only digits between ';' and end: nuke */ *lastsemi = '\0'; } if (*pathcomp == '\0') { Info(slide, 1, ((char *)slide, "mapname: conversion of %s failed\n", FnFilter1(G.filename))); return (error & ~MPN_MASK) | MPN_ERR_SKIP; } checkdir(__G__ pathcomp, APPEND_NAME); /* returns 1 if truncated: care? */ checkdir(__G__ G.filename, GETPATH); return error; } /* end function mapname() */ /***********************/ /* Function checkdir() */ /***********************/ int checkdir(__G__ pathcomp, flag) __GDEF char *pathcomp; int flag; /* * returns: * MPN_OK - no problem detected * MPN_INF_TRUNC - (on APPEND_NAME) truncated filename * MPN_INF_SKIP - path doesn't exist, not allowed to create * MPN_ERR_SKIP - path doesn't exist, tried to create and failed; or path * exists and is not a directory, but is supposed to be * MPN_ERR_TOOLONG - path is too long * MPN_NOMEM - can't allocate memory for filename buffers */ { static int rootlen = 0; /* length of rootpath */ static char *rootpath; /* user's "extract-to" directory */ static char *buildpath; /* full path (so far) to extracted file */ static char *end; /* pointer to end of buildpath ('\0') */ # define FN_MASK 7 # define FUNCTION (flag & FN_MASK) /*--------------------------------------------------------------------------- APPEND_DIR: append the path component to the path being built and check for its existence. If doesn't exist and we are creating directories, do so for this one; else signal success or error as appropriate. ---------------------------------------------------------------------------*/ if (FUNCTION == APPEND_DIR) { int too_long = FALSE; #ifdef SHORT_NAMES char *old_end = end; #endif Trace((stderr, "appending dir segment [%s]\n", FnFilter1(pathcomp))); while ((*end = *pathcomp++) != '\0') ++end; #ifdef SHORT_NAMES /* path components restricted to 14 chars, typically */ if ((end-old_end) > FILENAME_MAX) /* GRR: proper constant? */ *(end = old_end + FILENAME_MAX) = '\0'; #endif /* GRR: could do better check, see if overrunning buffer as we go: * check end-buildpath after each append, set warning variable if * within 20 of FILNAMSIZ; then if var set, do careful check when * appending. Clear variable when begin new path. */ if ((end-buildpath) > FILNAMSIZ-2) /* need '/', one-char name, '\0' */ too_long = TRUE; /* check if extracting directory? */ if (stat(buildpath, &G.statbuf)) { /* path doesn't exist */ if (!G.create_dirs) { /* told not to create (freshening) */ free(buildpath); return MPN_INF_SKIP; /* path doesn't exist: nothing to do */ } if (too_long) { Info(slide, 1, ((char *)slide, "checkdir error: path too long: %s\n", FnFilter1(buildpath))); free(buildpath); /* no room for filenames: fatal */ return MPN_ERR_TOOLONG; } if (mkdir(buildpath, 0777) == -1) { /* create the directory */ Info(slide, 1, ((char *)slide, "checkdir error: cannot create %s\n\ unable to process %s.\n", FnFilter2(buildpath), FnFilter1(G.filename))); free(buildpath); /* path didn't exist, tried to create, failed */ return MPN_ERR_SKIP; } created_dir = TRUE; } else if (!S_ISDIR(G.statbuf.st_mode)) { Info(slide, 1, ((char *)slide, "checkdir error: %s exists but is not directory\n\ unable to process %s.\n", FnFilter2(buildpath), FnFilter1(G.filename))); free(buildpath); /* path existed but wasn't dir */ return MPN_ERR_SKIP; } if (too_long) { Info(slide, 1, ((char *)slide, "checkdir error: path too long: %s\n", FnFilter1(buildpath))); free(buildpath); /* no room for filenames: fatal */ return MPN_ERR_TOOLONG; } *end++ = '_'; *end = '\0'; Trace((stderr, "buildpath now = [%s]\n", FnFilter1(buildpath))); return MPN_OK; } /* end if (FUNCTION == APPEND_DIR) */ /*--------------------------------------------------------------------------- GETPATH: copy full path to the string pointed at by pathcomp, and free buildpath. ---------------------------------------------------------------------------*/ if (FUNCTION == GETPATH) { strcpy(pathcomp, buildpath); Trace((stderr, "getting and freeing path [%s]\n", FnFilter1(pathcomp))); free(buildpath); buildpath = end = (char *)NULL; return MPN_OK; } /*--------------------------------------------------------------------------- APPEND_NAME: assume the path component is the filename; append it and return without checking for existence. ---------------------------------------------------------------------------*/ if (FUNCTION == APPEND_NAME) { #ifdef SHORT_NAMES char *old_end = end; #endif short dlen; Trace((stderr, "appending filename [%s]\n", FnFilter1(pathcomp))); while ((*end = *pathcomp++) != '\0') { ++end; #ifdef SHORT_NAMES /* truncate name at 14 characters, typically */ if ((end-old_end) > FILENAME_MAX) /* GRR: proper constant? */ *(end = old_end + FILENAME_MAX) = '\0'; #endif if (isdirdev(buildpath)) { dlen = 5; } else { dlen = 0; } if ((end-buildpath-dlen) >= FILNAMSIZ) { *--end = '\0'; Info(slide, 0x201, ((char *)slide, "checkdir warning: path too long; truncating\n\ %s\n -> %s\n", FnFilter1(G.filename), FnFilter2(buildpath))); return MPN_INF_TRUNC; /* filename truncated */ } } Trace((stderr, "buildpath now = [%s]\n", FnFilter1(buildpath))); /* could check for existence here, prompt for new name... */ return MPN_OK; } /*--------------------------------------------------------------------------- INIT: allocate and initialize buffer space for the file currently being extracted. If file was renamed with an absolute path, don't prepend the extract-to path. ---------------------------------------------------------------------------*/ /* GRR: for VMS and TOPS-20, add up to 13 to strlen */ if (FUNCTION == INIT) { Trace((stderr, "initializing buildpath to ")); if ((buildpath = (char *)malloc(strlen(G.filename)+rootlen+1)) == (char *)NULL) return MPN_NOMEM; if ((rootlen > 0) && !renamed_fullpath) { strcpy(buildpath, rootpath); end = buildpath + rootlen; } else { *buildpath = '\0'; end = buildpath; } Trace((stderr, "[%s]\n", FnFilter1(buildpath))); return MPN_OK; } /*--------------------------------------------------------------------------- ROOT: if appropriate, store the path in rootpath and create it if necessary; else assume it's a zipfile member and return. This path segment gets used in extracting all members from every zipfile specified on the command line. ---------------------------------------------------------------------------*/ #if (!defined(SFX) || defined(SFX_EXDIR)) if (FUNCTION == ROOT) { Trace((stderr, "initializing root path to [%s]\n", FnFilter1(pathcomp))); if (pathcomp == (char *)NULL) { rootlen = 0; return MPN_OK; } if (rootlen > 0) /* rootpath was already set, nothing to do */ return MPN_OK; if ((rootlen = strlen(pathcomp)) > 0) { char *tmproot; if ((tmproot = (char *)malloc(rootlen+2)) == (char *)NULL) { rootlen = 0; return MPN_NOMEM; } strcpy(tmproot, pathcomp); if ((stat(tmproot, &G.statbuf) || !S_ISDIR(G.statbuf.st_mode))) { /* path does not exist */ if (!G.create_dirs /* || iswild(tmproot) */ ) { free(tmproot); rootlen = 0; /* skip (or treat as stored file) */ return MPN_INF_SKIP; } /* create the directory (could add loop here scanning tmproot * to create more than one level, but why really necessary?) */ if (mkdir(tmproot, 0777) == -1) { Info(slide, 1, ((char *)slide, "checkdir: cannot create extraction directory: %s\n", FnFilter1(tmproot))); free(tmproot); rootlen = 0; /* path didn't exist, tried to create, and failed: */ /* file exists, or 2+ subdir levels required */ return MPN_ERR_SKIP; } } if (tmproot[rootlen-1] == '/' || tmproot[rootlen-1] == '_') { tmproot[--rootlen] = '\0'; } tmproot[rootlen++] = '_'; tmproot[rootlen] = '\0'; if ((rootpath = (char *)realloc(tmproot, rootlen+1)) == NULL) { free(tmproot); rootlen = 0; return MPN_NOMEM; } } Trace((stderr, "rootpath now = [%s]\n", FnFilter1(rootpath))); return MPN_OK; } #endif /* !SFX || SFX_EXDIR */ /*--------------------------------------------------------------------------- END: free rootpath, immediately prior to program exit. ---------------------------------------------------------------------------*/ if (FUNCTION == END) { Trace((stderr, "freeing rootpath\n")); if (rootlen > 0) { free(rootpath); rootlen = 0; } return MPN_OK; } return MPN_INVALID; /* should never reach */ } /* end function checkdir() */ static void qfix(__G__ ef_ptr, ef_len) __GDEF uch *ef_ptr; unsigned ef_len; { qdosextra qextra; while (ef_len >= EB_HEADSIZE) { qdosextra *extra = &qextra; jbextra *jbp = (jbextra *)&qextra; unsigned eb_len = makeword(EB_LEN + ef_ptr); if (eb_len > (ef_len - EB_HEADSIZE)) { /* discovered some extra field inconsistency! */ Trace((stderr, "qfix: block length %u > rest ef_size %u\n", eb_len, ef_len - EB_HEADSIZE)); break; } /* Must ensure that we don't use ODD addresses here */ memcpy(&qextra, ef_ptr, sizeof(qdosextra)); switch (extra->shortid) { case SHORTID: if (!strncmp(extra->longid, LONGID, strlen(LONGID))) { if (eb_len != EXTRALEN) fputs("warning: invalid length in Qdos field", stderr); if (extra->header.d_type) { fs_heads(fgetchid(G.outfile), (timeout_t)-1, &extra->header, 14); G.pInfo->file_attr |= S_IXUSR; } } if (!strncmp(jbp->longid, JBLONGID, strlen(JBLONGID))) { if (eb_len != JBEXTRALEN) fputs("warning: invalid length in QZ field", stderr); if (jbp->header.d_type) { fs_heads(fgetchid(G.outfile), (timeout_t)-1, &jbp->header, 14); G.pInfo->file_attr |= S_IXUSR; } } break; default: Trace((stderr,"qfix: unknown extra field block, ID=%d\n", extra->shortid)); break; } /* Skip this extra field block */ ef_ptr += (eb_len + EB_HEADSIZE); ef_len -= (eb_len + EB_HEADSIZE); } } #ifdef QDOS # include long timezone = 0; #endif /****************************/ /* Function close_outfile() */ /****************************/ void close_outfile(__G) __GDEF { union { iztimes t3; /* mtime, atime, ctime */ struct utimbuf t2; /* modtime, actime */ } zt; #ifdef USE_EF_UT_TIME unsigned eb_izux_flg; #endif if (G.extra_field) { qfix(__G__ G.extra_field, G.lrec.extra_field_length); } fclose(G.outfile); /*--------------------------------------------------------------------------- Change the file permissions from default ones to those stored in the zipfile. ---------------------------------------------------------------------------*/ #ifndef NO_CHMOD if (chmod(G.filename, 0xffff & G.pInfo->file_attr)) perror("chmod (file attributes) error"); #endif /*--------------------------------------------------------------------------- Convert from MSDOS-format local time and date to Unix-format 32-bit GMT time: adjust base year from 1980 to 1970, do usual conversions from yy/mm/dd hh:mm:ss to elapsed seconds, and account for timezone and day- light savings time differences. If we have a Unix extra field, however, we're laughing: both mtime and atime are ours. ---------------------------------------------------------------------------*/ /* skip restoring time stamps on user's request */ if (uO.D_flag <= 1) { #ifdef USE_EF_UT_TIME eb_izux_flg = (G.extra_field ? ef_scan_for_izux(G.extra_field, G.lrec.extra_field_length, 0, G.lrec.last_mod_dos_datetime, #ifdef IZ_CHECK_TZ (G.tz_is_valid ? &(zt.t3) : NULL), #else &(zt.t3), #endif NULL) : 0); if (eb_izux_flg & EB_UT_FL_MTIME) { TTrace((stderr, "\nclose_outfile: Unix e.f. modif. time = %ld\n", zt.t3.mtime)); } else { zt.t3.mtime = dos_to_unix_time(G.lrec.last_mod_dos_datetime); } if (eb_izux_flg & EB_UT_FL_ATIME) { TTrace((stderr, "close_outfile: Unix e.f. access time = %ld\n", zt.t3.atime)); } else { zt.t3.atime = zt.t3.mtime; TTrace((stderr, "\nclose_outfile: modification/access times = %ld\n", zt.t3.mtime)); } #else zt.t3.atime = zt.t3.mtime = dos_to_unix_time(G.lrec.last_mod_dos_datetime); #endif /* set the file's access and modification times */ if (utime(G.filename, &(zt.t2))) { Info(slide, 0x201, ((char *)slide, "warning: cannot set the time for %s\n", FnFilter1(G.filename))); } } } /* end function close_outfile() */ #ifdef TIMESTAMP /***************************/ /* Function stamp_file() */ /***************************/ int stamp_file(fname, modtime) ZCONST char *fname; time_t modtime; { struct utimbuf tp; tp.modtime = tp.actime = modtime; return (utime(fname, &tp)); } /* end function stamp_file() */ #endif /* TIMESTAMP */ #ifndef SFX /************************/ /* Function version() */ /************************/ void version(__G) __GDEF { sprintf((char *)slide, LoadFarString(CompiledWith), "c68", " v4.2x", "SMS/QDOS", " on ", __DATE__, "",""); (*G.message)((zvoid *)&G, slide, (ulg)strlen((char *)slide), 0); } /* end function version() */ #endif /* !SFX */ #endif /* !FUNZIP */ #if CRYPT char *getp(__G__ m, p, n) __GDEF const char *m; /* prompt for password */ char *p; /* return value: line input */ int n; /* bytes available in p[] */ { int c; /* one-byte buffer for read() to use */ int i; /* number of characters input */ char *w; /* warning on retry */ /* get password */ w = ""; sd_cure(getchid(0), -1); /* enable cursor */ do { fputs(w, stderr); /* warning if back again */ fputs(m, stderr); /* display prompt and flush */ fflush(stderr); i = 0; do { c = getch(); if (c == 0xc2) { if (i > 0) { i--; /* the `del' keys works */ fputs("\b \b", stderr); } } else if (i < n) { p[i++] = c; /* truncate past n */ if(c != '\n') putc('*', stderr); } } while (c != '\n'); putc('\n', stderr); fflush(stderr); w = "(line too long--try again)\n"; } while (p[i-1] != '\n'); p[i-1] = 0; /* terminate at newline */ sd_curs(getchid(0), -1); /* suppress cursor */ return p; /* return pointer to password */ } /* end function getp() */ #endif /* CRYPT */