msdos.c
资源名称:unzip540.zip [点击查看]
上传用户:andy_li
上传日期:2007-01-06
资源大小:1019k
文件大小:69k
源码类别:
压缩解压
开发平台:
MultiPlatform
- /*---------------------------------------------------------------------------
- msdos.c
- MSDOS-specific routines for use with Info-ZIP's UnZip 5.3 and later.
- Contains: Opendir() (from zip)
- Readdir() (from zip)
- do_wild()
- mapattr()
- mapname()
- map2fat()
- checkdir()
- isfloppy()
- z_dos_chmod()
- volumelabel() (non-djgpp, non-emx)
- close_outfile()
- stamp_file() (TIMESTAMP only)
- dateformat()
- version()
- _dos_getcountryinfo() (djgpp 1.x, emx)
- [_dos_getftime() (djgpp 1.x, emx) to be added]
- _dos_setftime() (djgpp 1.x, emx)
- _dos_setfileattr() (djgpp 1.x, emx)
- _dos_getdrive() (djgpp 1.x, emx)
- _dos_creat() (djgpp 1.x, emx)
- _dos_close() (djgpp 1.x, emx)
- volumelabel() (djgpp, emx)
- _dos_getcountryinfo() (djgpp 2.x)
- _is_executable() (djgpp 2.x)
- __crt0_glob_function() (djgpp 2.x)
- __crt0_load_environment_file() (djgpp 2.x)
- screenlines() (emx)
- screencolumns() (emx)
- int86x_realmode() (Watcom 32-bit)
- stat_bandaid() (Watcom)
- ---------------------------------------------------------------------------*/
- #define UNZIP_INTERNAL
- #include "unzip.h"
- #ifdef MAYBE_PLAIN_FAT
- static void map2fat OF((char *pathcomp, char *last_dot));
- #endif
- static int isfloppy OF((int nDrive));
- static int z_dos_chmod OF((__GPRO__ ZCONST char *fname, int attributes));
- static int volumelabel OF((char *newlabel));
- static int created_dir; /* used by mapname(), checkdir() */
- static int renamed_fullpath; /* ditto */
- static unsigned nLabelDrive; /* ditto, plus volumelabel() */
- /*****************************/
- /* Strings used in msdos.c */
- /*****************************/
- #ifndef SFX
- static ZCONST char Far CantAllocateWildcard[] =
- "warning: cannot allocate wildcard buffersn";
- #endif
- static ZCONST char Far Creating[] = " creating: %sn";
- static ZCONST char Far ConversionFailed[] =
- "mapname: conversion of %s failedn";
- static ZCONST char Far Labelling[] = "labelling %c: %-22sn";
- static ZCONST char Far ErrSetVolLabel[] =
- "mapname: error setting volume labeln";
- static ZCONST char Far PathTooLong[] = "checkdir error: path too long: %sn";
- static ZCONST char Far CantCreateDir[] = "checkdir error: cannot create %sn
- unable to process %s.n";
- static ZCONST char Far DirIsntDirectory[] =
- "checkdir error: %s exists but is not directoryn
- unable to process %s.n";
- static ZCONST char Far PathTooLongTrunc[] =
- "checkdir warning: path too long; truncatingn %sn
- -> %sn";
- #if (!defined(SFX) || defined(SFX_EXDIR))
- static ZCONST char Far CantCreateExtractDir[] =
- "checkdir: cannot create extraction directory: %sn";
- #endif
- static ZCONST char Far AttribsMayBeWrong[] =
- "nwarning: file attributes may not be correctn";
- /****************************/
- /* Macros used in msdos.c */
- /****************************/
- #ifdef WATCOMC_386
- # define WREGS(v,r) (v##.w.##r)
- # define int86x int386x
- static int int86x_realmode(int inter_no, union REGS *in,
- union REGS *out, struct SREGS *seg);
- # define F_intdosx(ir,or,sr) int86x_realmode(0x21, ir, or, sr)
- # define XXX__MK_FP_IS_BROKEN
- #else
- # define WREGS(v,r) (v##.x.##r)
- # define F_intdosx(ir,or,sr) intdosx(ir, or, sr)
- #endif
- #if (defined(__GO32__) || defined(__EMX__))
- # include <dirent.h> /* use readdir() */
- # define MKDIR(path,mode) mkdir(path,mode)
- # define Opendir opendir
- # define Readdir readdir
- # define Closedir closedir
- # define zdirent dirent
- # define zDIR DIR
- # ifdef __EMX__
- # include <dos.h>
- # define GETDRIVE(d) d = _getdrive()
- # define FA_LABEL A_LABEL
- # else
- # define GETDRIVE(d) _dos_getdrive(&d)
- # endif
- # if defined(_A_SUBDIR) /* MSC dos.h and compatibles */
- # define FSUBDIR _A_SUBDIR
- # elif defined(FA_DIREC) /* Borland dos.h and compatible variants */
- # define FSUBDIR FA_DIREC
- # elif defined(A_DIR) /* EMX dir.h (and dirent.h) */
- # define FSUBDIR A_DIR
- # else /* fallback definition */
- # define FSUBDIR 0x10
- # endif
- # if defined(_A_VOLID) /* MSC dos.h and compatibles */
- # define FVOLID _A_VOLID
- # elif defined(FA_LABEL) /* Borland dos.h and compatible variants */
- # define FVOLID FA_LABEL
- # elif defined(A_LABEL) /* EMX dir.h (and dirent.h) */
- # define FVOLID A_LABEL
- # else
- # define FVOLID 0x08
- # endif
- #else /* !(__GO32__ || __EMX__) */
- # define MKDIR(path,mode) mkdir(path)
- # ifdef __TURBOC__
- # define FATTR FA_HIDDEN+FA_SYSTEM+FA_DIREC
- # define FVOLID FA_LABEL
- # define FSUBDIR FA_DIREC
- # define FFIRST(n,d,a) findfirst(n,(struct ffblk *)d,a)
- # define FNEXT(d) findnext((struct ffblk *)d)
- # define GETDRIVE(d) d=getdisk()+1
- # include <dir.h>
- # else /* !__TURBOC__ */
- # define FATTR _A_HIDDEN+_A_SYSTEM+_A_SUBDIR
- # define FVOLID _A_VOLID
- # define FSUBDIR _A_SUBDIR
- # define FFIRST(n,d,a) _dos_findfirst(n,a,(struct find_t *)d)
- # define FNEXT(d) _dos_findnext((struct find_t *)d)
- # define GETDRIVE(d) _dos_getdrive(&d)
- # include <direct.h>
- # endif /* ?__TURBOC__ */
- typedef struct zdirent {
- char d_reserved[30];
- char d_name[13];
- int d_first;
- } zDIR;
- zDIR *Opendir OF((const char *));
- struct zdirent *Readdir OF((zDIR *));
- # define Closedir free
- #ifndef SFX
- /**********************/ /* Borland C++ 3.x has its own opendir/readdir */
- /* Function Opendir() */ /* library routines, but earlier versions don't, */
- /**********************/ /* so use ours regardless */
- zDIR *Opendir(name)
- const char *name; /* name of directory to open */
- {
- zDIR *dirp; /* malloc'd return value */
- char *nbuf; /* malloc'd temporary string */
- extent len = strlen(name); /* path length to avoid strlens and strcats */
- if ((dirp = (zDIR *)malloc(sizeof(zDIR))) == (zDIR *)NULL)
- return (zDIR *)NULL;
- if ((nbuf = malloc(len + 6)) == (char *)NULL) {
- free(dirp);
- return (zDIR *)NULL;
- }
- strcpy(nbuf, name);
- if (len > 0) {
- if (nbuf[len-1] == ':') {
- nbuf[len++] = '.';
- } else if (nbuf[len-1] == '/' || nbuf[len-1] == '\')
- --len;
- }
- strcpy(nbuf+len, "/*.*");
- Trace((stderr, "Opendir: nbuf = [%s]n", nbuf));
- if (FFIRST(nbuf, dirp, FATTR)) {
- free((zvoid *)nbuf);
- return (zDIR *)NULL;
- }
- free((zvoid *)nbuf);
- dirp->d_first = 1;
- return dirp;
- }
- /**********************/
- /* Function Readdir() */
- /**********************/
- struct zdirent *Readdir(d)
- zDIR *d; /* directory stream from which to read */
- {
- /* Return pointer to first or next directory entry, or NULL if end. */
- if (d->d_first)
- d->d_first = 0;
- else
- if (FNEXT(d))
- return (struct zdirent *)NULL;
- return (struct zdirent *)d;
- }
- #endif /* !SFX */
- #endif /* ?(__GO32__ || __EMX__) */
- #ifndef SFX
- /************************/
- /* Function do_wild() */ /* identical to OS/2 version */
- /************************/
- char *do_wild(__G__ wildspec)
- __GDEF
- char *wildspec; /* only used first time on a given dir */
- {
- static zDIR *dir = (zDIR *)NULL;
- static char *dirname, *wildname, matchname[FILNAMSIZ];
- static int firstcall=TRUE, have_dirname, dirnamelen;
- char *fnamestart;
- struct zdirent *file;
- /* 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 (firstcall) { /* first call: must initialize everything */
- firstcall = FALSE;
- if (!iswild(wildspec)) {
- strcpy(matchname, wildspec);
- have_dirname = FALSE;
- dir = NULL;
- return matchname;
- }
- /* break the wildspec into a directory part and a wildcard filename */
- if ((wildname = strrchr(wildspec, '/')) == (char *)NULL &&
- (wildname = strrchr(wildspec, ':')) == (char *)NULL) {
- dirname = ".";
- dirnamelen = 1;
- have_dirname = FALSE;
- wildname = wildspec;
- } else {
- ++wildname; /* point at character after '/' or ':' */
- dirnamelen = (int)(wildname - wildspec);
- if ((dirname = (char *)malloc(dirnamelen+1)) == (char *)NULL) {
- Info(slide, 1, ((char *)slide,
- LoadFarString(CantAllocateWildcard)));
- strcpy(matchname, wildspec);
- return matchname; /* but maybe filespec was not a wildcard */
- }
- /* GRR: can't strip trailing char for opendir since might be "d:/" or "d:"
- * (would have to check for "./" at end--let opendir handle it instead) */
- strncpy(dirname, wildspec, dirnamelen);
- dirname[dirnamelen] = ' '; /* terminate for strcpy below */
- have_dirname = TRUE;
- }
- Trace((stderr, "do_wild: dirname = [%s]n", dirname));
- if ((dir = Opendir(dirname)) != (zDIR *)NULL) {
- if (have_dirname) {
- strcpy(matchname, dirname);
- fnamestart = matchname + dirnamelen;
- } else
- fnamestart = matchname;
- while ((file = Readdir(dir)) != (struct zdirent *)NULL) {
- Trace((stderr, "do_wild: readdir returns %sn", file->d_name));
- strcpy(fnamestart, file->d_name);
- if (strrchr(fnamestart, '.') == (char *)NULL)
- strcat(fnamestart, ".");
- if (match(fnamestart, wildname, 1) && /* 1 == ignore case */
- /* skip "." and ".." directory entries */
- strcmp(fnamestart, ".") && strcmp(fnamestart, "..")) {
- Trace((stderr, "do_wild: match() succeedsn"));
- /* remove trailing dot */
- fnamestart += strlen(fnamestart) - 1;
- if (*fnamestart == '.')
- *fnamestart = ' ';
- return matchname;
- }
- }
- /* if we get to here directory is exhausted, so close it */
- Closedir(dir);
- dir = (zDIR *)NULL;
- }
- #ifdef DEBUG
- else {
- Trace((stderr, "do_wild: Opendir(%s) returns NULLn", dirname));
- }
- #endif /* DEBUG */
- /* return the raw wildspec in case that works (e.g., directory not
- * searchable, but filespec was not wild and file is readable) */
- strcpy(matchname, wildspec);
- return matchname;
- }
- /* last time through, might have failed opendir but returned raw wildspec */
- if (dir == (zDIR *)NULL) {
- firstcall = TRUE; /* 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.
- */
- if (have_dirname) {
- /* strcpy(matchname, dirname); */
- fnamestart = matchname + dirnamelen;
- } else
- fnamestart = matchname;
- while ((file = Readdir(dir)) != (struct zdirent *)NULL) {
- Trace((stderr, "do_wild: readdir returns %sn", file->d_name));
- strcpy(fnamestart, file->d_name);
- if (strrchr(fnamestart, '.') == (char *)NULL)
- strcat(fnamestart, ".");
- if (match(fnamestart, wildname, 1)) { /* 1 == ignore case */
- Trace((stderr, "do_wild: match() succeedsn"));
- /* remove trailing dot */
- fnamestart += strlen(fnamestart) - 1;
- if (*fnamestart == '.')
- *fnamestart = ' ';
- return matchname;
- }
- }
- Closedir(dir); /* have read at least one dir entry; nothing left */
- dir = (zDIR *)NULL;
- firstcall = TRUE; /* reset for new wildspec */
- if (have_dirname)
- free(dirname);
- return (char *)NULL;
- } /* end function do_wild() */
- #endif /* !SFX */
- /**********************/
- /* Function mapattr() */
- /**********************/
- int mapattr(__G)
- __GDEF
- {
- /* set archive bit for file entries (file is not backed up): */
- G.pInfo->file_attr = ((unsigned)G.crec.external_file_attributes |
- (G.crec.external_file_attributes & FSUBDIR ? 0 : 32)) & 0xff;
- return 0;
- } /* end function mapattr() */
- /************************/
- /* Function mapname() */
- /************************/
- /* return 0 if no error, 1 if caution (filename */
- int mapname(__G__ renamed) /* truncated), 2 if warning (skip file because */
- __GDEF /* dir doesn't exist), 3 if error (skip file), */
- int renamed; /* or 10 if out of memory (skip file) */
- { /* [also IZ_VOL_LABEL, IZ_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 */
- #ifdef MAYBE_PLAIN_FAT
- char *last_dot=(char *)NULL; /* last dot not converted to underscore */
- int dotname = FALSE; /* path component begins with dot? */
- # ifdef USE_LFN
- int use_lfn = USE_LFN; /* file system supports long filenames? */
- # endif
- #endif
- int error = 0;
- register unsigned workch; /* hold the character being tested */
- /*---------------------------------------------------------------------------
- Initialize various pointers and counters and stuff.
- ---------------------------------------------------------------------------*/
- /* 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 */
- renamed_fullpath = FALSE;
- if (renamed) {
- cp = G.filename - 1; /* point to beginning of renamed name... */
- while (*++cp)
- if (*cp == '\') /* convert backslashes to forward */
- *cp = '/';
- cp = G.filename;
- /* use temporary rootpath if user gave full pathname */
- if (G.filename[0] == '/') {
- renamed_fullpath = TRUE;
- pathcomp[0] = '/'; /* copy the '/' and terminate */
- pathcomp[1] = ' ';
- ++cp;
- } else if (isalpha(G.filename[0]) && G.filename[1] == ':') {
- renamed_fullpath = TRUE;
- pp = pathcomp;
- *pp++ = *cp++; /* copy the "d:" (+ '/', possibly) */
- *pp++ = *cp++;
- if (*cp == '/')
- *pp++ = *cp++; /* otherwise add "./"? */
- *pp = ' ';
- }
- }
- /* pathcomp is ignored unless renamed_fullpath is TRUE: */
- if ((error = checkdir(__G__ pathcomp, INIT)) != 0) /* initialize path buf */
- return error; /* ...unless no mem or vol label on hard disk */
- *pathcomp = ' '; /* initialize translation buffer */
- pp = pathcomp; /* point to translation buffer */
- if (!renamed) { /* cp already set if renamed */
- 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 = ' ';
- #ifdef MAYBE_PLAIN_FAT
- # ifdef USE_LFN
- if (!use_lfn)
- # endif
- {
- map2fat(pathcomp, last_dot); /* 8.3 trunc. (in place) */
- last_dot = (char *)NULL;
- }
- #endif
- if ((error = checkdir(__G__ pathcomp, APPEND_DIR)) > 1)
- return error;
- pp = pathcomp; /* reset conversion buffer for next piece */
- lastsemi = (char *)NULL; /* leave directory semi-colons alone */
- break;
- /* drive names are not stored in zipfile, so no colons allowed;
- * no brackets or most other punctuation either (all of which
- * can appear in Unix-created archives; backslash is particularly
- * bad unless all necessary directories exist) */
- #ifdef MAYBE_PLAIN_FAT
- case '[': /* these punctuation characters forbidden */
- case ']': /* only on plain FAT file systems */
- case '+':
- case ',':
- case '=':
- # ifdef USE_LFN
- if (use_lfn)
- *pp++ = (char)workch;
- else
- *pp++ = '_';
- break;
- # endif
- #endif
- case ':': /* special shell characters of command.com */
- case '\': /* (device and directory limiters, wildcard */
- case '"': /* characters, stdin/stdout redirection and */
- case '<': /* pipe indicators and the quote sign) are */
- case '>': /* never allowed in filenames on (V)FAT */
- case '|':
- case '*':
- case '?':
- *pp++ = '_';
- break;
- #ifdef MAYBE_PLAIN_FAT
- case '.':
- # ifdef USE_LFN
- if (use_lfn) {
- *pp++ = (char)workch;
- break;
- }
- # endif
- if (pp == pathcomp) { /* nothing appended yet... */
- if (*cp == '/') { /* don't bother appending a "./" */
- ++cp; /* component to the path: skip */
- break; /* to next char after the '/' */
- } else if (*cp == '.' && cp[1] == '/') { /* "../" */
- *pp++ = '.'; /* add first dot, unchanged... */
- ++cp; /* skip second dot, since it will */
- } else { /* be "added" at end of if-block */
- *pp++ = '_'; /* FAT doesn't allow null filename */
- dotname = TRUE; /* bodies, so map .exrc -> _.exrc */
- } /* (extra '_' now, "dot" below) */
- } else if (dotname) { /* found a second dot, but still */
- dotname = FALSE; /* have extra leading underscore: */
- *pp = ' '; /* remove it by shifting chars */
- pp = pathcomp + 1; /* left one space (e.g., .p1.p2: */
- while (pp[1]) { /* __p1 -> _p1_p2 -> _p1.p2 when */
- *pp = pp[1]; /* finished) [opt.: since first */
- ++pp; /* two chars are same, can start */
- } /* shifting at second position] */
- }
- last_dot = pp; /* point at last dot so far... */
- *pp++ = '_'; /* convert dot to underscore for now */
- break;
- #endif /* MAYBE_PLAIN_FAT */
- case ';': /* start of VMS version? */
- lastsemi = pp;
- #ifdef MAYBE_PLAIN_FAT
- # ifdef USE_LFN
- if (use_lfn)
- *pp++ = ';'; /* keep for now; remove VMS ";##" later */
- # endif
- #else
- *pp++ = ';'; /* keep for now; remove VMS ";##" later */
- #endif
- break;
- #ifdef MAYBE_PLAIN_FAT
- case ' ': /* change spaces to underscores */
- # ifdef USE_LFN
- if (!use_lfn && uO.sflag) /* only if requested and NO lfn! */
- # else
- if (uO.sflag) /* only if requested */
- # endif
- *pp++ = '_';
- else
- *pp++ = (char)workch;
- break;
- #endif /* MAYBE_PLAIN_FAT */
- default:
- /* allow ASCII 255 and European characters in filenames: */
- if (isprint(workch) || workch >= 127)
- *pp++ = (char)workch;
- } /* end switch */
- } /* end while loop */
- *pp = ' '; /* done with pathcomp: terminate it */
- /* if not saving them, remove VMS version numbers (appended ";###") */
- if (!uO.V_flag && lastsemi) {
- #ifndef MAYBE_PLAIN_FAT
- pp = lastsemi + 1;
- #else
- # ifdef USE_LFN
- if (use_lfn)
- pp = lastsemi + 1;
- else
- pp = lastsemi; /* semi-colon was omitted: expect all #'s */
- # else
- pp = lastsemi; /* semi-colon was omitted: expect all #'s */
- # endif
- #endif
- while (isdigit((uch)(*pp)))
- ++pp;
- if (*pp == ' ') /* only digits between ';' and end: nuke */
- *lastsemi = ' ';
- }
- if (G.pInfo->vollabel) {
- if (strlen(pathcomp) > 11)
- pathcomp[11] = ' ';
- }
- #ifdef MAYBE_PLAIN_FAT
- # ifdef USE_LFN
- if (!use_lfn)
- map2fat(pathcomp, last_dot); /* 8.3 truncation (in place) */
- # else
- map2fat(pathcomp, last_dot); /* 8.3 truncation (in place) */
- # endif
- #endif
- /*---------------------------------------------------------------------------
- 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] == '/') {
- checkdir(__G__ G.filename, GETPATH);
- if (created_dir) {
- if (QCOND2) {
- Info(slide, 0, ((char *)slide, LoadFarString(Creating),
- FnFilter1(G.filename)));
- }
- /* set file attributes: */
- z_dos_chmod(__G__ G.filename, G.pInfo->file_attr);
- return IZ_CREATED_DIR; /* set dir time (note trailing '/') */
- } else if (uO.overwrite_all) {
- /* overwrite attributes of existing directory on user's request */
- /* set file attributes: */
- z_dos_chmod(__G__ G.filename, G.pInfo->file_attr);
- }
- return 2; /* dir existed already; don't look for data to extract */
- }
- if (*pathcomp == ' ') {
- Info(slide, 1, ((char *)slide, LoadFarString(ConversionFailed),
- FnFilter1(G.filename)));
- return 3;
- }
- checkdir(__G__ pathcomp, APPEND_NAME); /* returns 1 if truncated: care? */
- checkdir(__G__ G.filename, GETPATH);
- if (G.pInfo->vollabel) { /* set the volume label now */
- if (QCOND2)
- Info(slide, 0, ((char *)slide, LoadFarString(Labelling),
- (nLabelDrive + 'a' - 1),
- FnFilter1(G.filename)));
- if (volumelabel(G.filename)) {
- Info(slide, 1, ((char *)slide, LoadFarString(ErrSetVolLabel)));
- return 3;
- }
- return 2; /* success: skip the "extraction" quietly */
- }
- return error;
- } /* end function mapname() */
- #ifdef MAYBE_PLAIN_FAT
- /**********************/
- /* Function map2fat() */
- /**********************/
- static void map2fat(pathcomp, last_dot)
- char *pathcomp, *last_dot;
- {
- char *pEnd = pathcomp + strlen(pathcomp);
- /*---------------------------------------------------------------------------
- Case 1: filename has no dot, so figure out if we should add one. Note
- that the algorithm does not try to get too fancy: if there are no dots
- already, the name either gets truncated at 8 characters or the last un-
- derscore is converted to a dot (only if more characters are saved that
- way). In no case is a dot inserted between existing characters.
- GRR: have problem if filename is volume label??
- ---------------------------------------------------------------------------*/
- if (last_dot == (char *)NULL) { /* no dots: check for underscores... */
- char *plu = strrchr(pathcomp, '_'); /* pointer to last underscore */
- if (plu == (char *)NULL) { /* no dots, no underscores: truncate at */
- if (pEnd > pathcomp+8) /* 8 chars (could insert '.' and keep 11) */
- *(pEnd = pathcomp+8) = ' ';
- } else if (MIN(plu - pathcomp, 8) + MIN(pEnd - plu - 1, 3) > 8) {
- last_dot = plu; /* be lazy: drop through to next if-block */
- } else if ((pEnd - pathcomp) > 8) /* more fits into just basename */
- pathcomp[8] = ' '; /* than if convert last underscore to dot */
- /* else whole thing fits into 8 chars or less: no change */
- }
- /*---------------------------------------------------------------------------
- Case 2: filename has dot in it, so truncate first half at 8 chars (shift
- extension if necessary) and second half at three.
- ---------------------------------------------------------------------------*/
- if (last_dot != (char *)NULL) { /* one dot (or two, in the case of */
- *last_dot = '.'; /* "..") is OK: put it back in */
- if ((last_dot - pathcomp) > 8) {
- char *p, *q;
- int i;
- p = last_dot;
- q = last_dot = pathcomp + 8;
- for (i = 0; (i < 4) && *p; ++i) /* too many chars in basename: */
- *q++ = *p++; /* shift extension left and */
- *q = ' '; /* truncate/terminate it */
- } else if ((pEnd - last_dot) > 4)
- last_dot[4] = ' '; /* too many chars in extension */
- /* else filename is fine as is: no change */
- if ((last_dot - pathcomp) > 0 && last_dot[-1] == ' ')
- last_dot[-1] = '_'; /* NO blank in front of '.'! */
- }
- } /* end function map2fat() */
- #endif /* MAYBE_PLAIN_FAT */
- /***********************/
- /* Function checkdir() */
- /***********************/
- int checkdir(__G__ pathcomp, flag)
- __GDEF
- char *pathcomp;
- int flag;
- /*
- * returns: 1 - (on APPEND_NAME) truncated filename
- * 2 - path doesn't exist, not allowed to create
- * 3 - path doesn't exist, tried to create and failed; or
- * path exists and is not a directory, but is supposed to be
- * 4 - path is too long
- * 10 - 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 (' ') */
- #ifdef MSC
- int attrs; /* work around MSC stat() bug */
- #endif
- # 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;
- Trace((stderr, "appending dir segment [%s]n", pathcomp));
- while ((*end = *pathcomp++) != ' ')
- ++end;
- /* 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-3) /* need '/', one-char name, ' ' */
- too_long = TRUE; /* check if extracting directory? */
- #ifdef MSC /* MSC 6.00 bug: stat(non-existent-dir) == 0 [exists!] */
- if (_dos_getfileattr(buildpath, &attrs) || stat(buildpath, &G.statbuf))
- #else
- if (SSTAT(buildpath, &G.statbuf)) /* path doesn't exist */
- #endif
- {
- if (!G.create_dirs) { /* told not to create (freshening) */
- free(buildpath);
- return 2; /* path doesn't exist: nothing to do */
- }
- if (too_long) {
- Info(slide, 1, ((char *)slide, LoadFarString(PathTooLong),
- FnFilter1(buildpath)));
- free(buildpath);
- return 4; /* no room for filenames: fatal */
- }
- if (MKDIR(buildpath, 0777) == -1) { /* create the directory */
- Info(slide, 1, ((char *)slide, LoadFarString(CantCreateDir),
- FnFilter2(buildpath), FnFilter1(G.filename)));
- free(buildpath);
- return 3; /* path didn't exist, tried to create, failed */
- }
- created_dir = TRUE;
- } else if (!S_ISDIR(G.statbuf.st_mode)) {
- Info(slide, 1, ((char *)slide, LoadFarString(DirIsntDirectory),
- FnFilter2(buildpath), FnFilter1(G.filename)));
- free(buildpath);
- return 3; /* path existed but wasn't dir */
- }
- if (too_long) {
- Info(slide, 1, ((char *)slide, LoadFarString(PathTooLong),
- FnFilter1(buildpath)));
- free(buildpath);
- return 4; /* no room for filenames: fatal */
- }
- *end++ = '/';
- *end = ' ';
- Trace((stderr, "buildpath now = [%s]n", FnFilter1(buildpath)));
- return 0;
- } /* 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 0;
- }
- /*---------------------------------------------------------------------------
- APPEND_NAME: assume the path component is the filename; append it and
- return without checking for existence.
- ---------------------------------------------------------------------------*/
- if (FUNCTION == APPEND_NAME) {
- #ifdef NOVELL_BUG_WORKAROUND
- if (end == buildpath && !G.pInfo->vollabel) {
- /* work-around for Novell's "overwriting executables" bug:
- prepend "./" to name when no path component is specified */
- *end++ = '.';
- *end++ = '/';
- }
- #endif /* NOVELL_BUG_WORKAROUND */
- Trace((stderr, "appending filename [%s]n", FnFilter1(pathcomp)));
- while ((*end = *pathcomp++) != ' ') {
- ++end;
- if ((end-buildpath) >= FILNAMSIZ) {
- *--end = ' ';
- Info(slide, 1, ((char *)slide, LoadFarString(PathTooLongTrunc),
- FnFilter1(G.filename), FnFilter2(buildpath)));
- return 1; /* filename truncated */
- }
- }
- Trace((stderr, "buildpath now = [%s]n", FnFilter1(buildpath)));
- return 0; /* could check for existence here, prompt for new name... */
- }
- /*---------------------------------------------------------------------------
- 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.
- ---------------------------------------------------------------------------*/
- if (FUNCTION == INIT) {
- Trace((stderr, "initializing buildpath to "));
- /* allocate space for full filename, root path, and maybe "./" */
- if ((buildpath = (char *)malloc(strlen(G.filename)+rootlen+3)) ==
- (char *)NULL)
- return 10;
- if (G.pInfo->vollabel) {
- /* GRR: for network drives, do strchr() and return IZ_VOL_LABEL if not [1] */
- if (renamed_fullpath && pathcomp[1] == ':')
- *buildpath = (char)ToLower(*pathcomp);
- else if (!renamed_fullpath && rootlen > 1 && rootpath[1] == ':')
- *buildpath = (char)ToLower(*rootpath);
- else {
- GETDRIVE(nLabelDrive); /* assumed that a == 1, b == 2, etc. */
- *buildpath = (char)(nLabelDrive - 1 + 'a');
- }
- nLabelDrive = *buildpath - 'a' + 1; /* save for mapname() */
- if (uO.volflag == 0 || *buildpath < 'a' || /* no label/bogus disk */
- (uO.volflag == 1 && !isfloppy(nLabelDrive))) /* -$: no fixed */
- {
- free(buildpath);
- return IZ_VOL_LABEL; /* skipping with message */
- }
- *buildpath = ' ';
- end = buildpath;
- } else if (renamed_fullpath) { /* pathcomp = valid data */
- end = buildpath;
- while ((*end = *pathcomp++) != ' ')
- ++end;
- } else if (rootlen > 0) {
- strcpy(buildpath, rootpath);
- end = buildpath + rootlen;
- } else {
- *buildpath = ' ';
- end = buildpath;
- }
- Trace((stderr, "[%s]n", FnFilter1(buildpath)));
- return 0;
- }
- /*---------------------------------------------------------------------------
- ROOT: if appropriate, store the path in rootpath and create it if neces-
- sary; 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. Note that under OS/2 and MS-DOS, if a candidate extract-to
- directory specification includes a drive letter (leading "x:"), it is
- treated just as if it had a trailing '/'--that is, one directory level
- will be created if the path doesn't exist, unless this is otherwise pro-
- hibited (e.g., freshening).
- ---------------------------------------------------------------------------*/
- #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 0;
- }
- if ((rootlen = strlen(pathcomp)) > 0) {
- int had_trailing_pathsep=FALSE, has_drive=FALSE, xtra=2;
- if (isalpha(pathcomp[0]) && pathcomp[1] == ':')
- has_drive = TRUE; /* drive designator */
- if (pathcomp[rootlen-1] == '/' || pathcomp[rootlen-1] == '\') {
- pathcomp[--rootlen] = ' ';
- had_trailing_pathsep = TRUE;
- }
- if (has_drive && (rootlen == 2)) {
- if (!had_trailing_pathsep) /* i.e., original wasn't "x:/" */
- xtra = 3; /* room for '.' + '/' + 0 at end of "x:" */
- } else if (rootlen > 0) { /* need not check "x:." and "x:/" */
- #ifdef MSC
- /* MSC 6.00 bug: stat(non-existent-dir) == 0 [exists!] */
- if (_dos_getfileattr(pathcomp, &attrs) ||
- SSTAT(pathcomp,&G.statbuf) || !S_ISDIR(G.statbuf.st_mode))
- #else
- if (SSTAT(pathcomp,&G.statbuf) || !S_ISDIR(G.statbuf.st_mode))
- #endif
- {
- /* path does not exist */
- if (!G.create_dirs /* || iswild(pathcomp) */ ) {
- rootlen = 0;
- return 2; /* treat as stored file */
- }
- /* GRR: scan for wildcard characters? OS-dependent... if find any, return 2:
- * treat as stored file(s) */
- /* create directory (could add loop here to scan pathcomp
- * and create more than one level, but really necessary?) */
- if (MKDIR(pathcomp, 0777) == -1) {
- Info(slide, 1, ((char *)slide,
- LoadFarString(CantCreateExtractDir),
- FnFilter1(pathcomp)));
- rootlen = 0; /* path didn't exist, tried to create, */
- return 3; /* failed: file exists, or need 2+ levels */
- }
- }
- }
- if ((rootpath = (char *)malloc(rootlen+xtra)) == (char *)NULL) {
- rootlen = 0;
- return 10;
- }
- strcpy(rootpath, pathcomp);
- if (xtra == 3) /* had just "x:", make "x:." */
- rootpath[rootlen++] = '.';
- rootpath[rootlen++] = '/';
- rootpath[rootlen] = ' ';
- Trace((stderr, "rootpath now = [%s]n", FnFilter1(rootpath)));
- }
- return 0;
- }
- #endif /* !SFX || SFX_EXDIR */
- /*---------------------------------------------------------------------------
- END: free rootpath, immediately prior to program exit.
- ---------------------------------------------------------------------------*/
- if (FUNCTION == END) {
- Trace((stderr, "freeing rootpathn"));
- if (rootlen > 0) {
- free(rootpath);
- rootlen = 0;
- }
- return 0;
- }
- return 99; /* should never reach */
- } /* end function checkdir() */
- /***********************/
- /* Function isfloppy() */
- /***********************/
- static int isfloppy(nDrive) /* more precisely, is it removable? */
- int nDrive;
- {
- union REGS regs;
- regs.h.ah = 0x44;
- regs.h.al = 0x08;
- regs.h.bl = (uch)nDrive;
- #ifdef __EMX__
- _int86(0x21, ®s, ®s);
- if (WREGS(regs,flags) & 1)
- #else
- intdos(®s, ®s);
- if (WREGS(regs,cflag)) /* error: do default a/b check instead */
- #endif
- {
- Trace((stderr,
- "error in DOS function 0x44 (AX = 0x%04x): guessing instead...n",
- WREGS(regs,ax)));
- return (nDrive == 1 || nDrive == 2)? TRUE : FALSE;
- } else
- return WREGS(regs,ax)? FALSE : TRUE;
- }
- /**************************/
- /* Function z_dos_chmod() */
- /**************************/
- static int z_dos_chmod(__G__ fname, attributes)
- __GDEF
- ZCONST char *fname;
- int attributes;
- {
- char *name;
- unsigned fnamelength;
- int errv;
- /* set file attributes:
- The DOS `chmod' system call requires to mask out the
- directory and volume_label attribute bits.
- And, a trailing '/' has to be removed from the directory name,
- the DOS `chmod' system call does not accept it. */
- fnamelength = strlen(fname);
- if (fnamelength > 1 && fname[fnamelength-1] == '/' &&
- fname[fnamelength-2] != ':' &&
- (name = (char *)malloc(fnamelength)) != (char *)NULL) {
- strncpy(name, fname, fnamelength-1);
- name[fnamelength-1] = ' ';
- } else {
- name = (char *)fname;
- fnamelength = 0;
- }
- #if defined(__TURBOC__) || (defined(__DJGPP__) && (__DJGPP__ >= 2))
- # if (defined(__BORLANDC__) && (__BORLANDC__ >= 0x0452))
- # define Chmod _rtl_chmod
- # else
- # define Chmod _chmod
- # endif
- errv = (Chmod(name, 1, attributes & (~FSUBDIR & ~FVOLID)) !=
- (attributes & (~FSUBDIR & ~FVOLID)));
- # undef Chmod
- #else /* !(__TURBOC__ || (__DJGPP__ && __DJGPP__ >= 2)) */
- errv = (_dos_setfileattr(name, attributes & (~FSUBDIR & ~FVOLID)) != 0);
- #endif /* ?(__TURBOC__ || (__DJGPP__ && __DJGPP__ >= 2)) */
- if (errv)
- Info(slide, 1, ((char *)slide, LoadFarString(AttribsMayBeWrong)));
- if (fnamelength > 0)
- free(name);
- return errv;
- } /* end function z_dos_chmod() */
- #if (!defined(__GO32__) && !defined(__EMX__))
- typedef struct dosfcb {
- uch flag; /* ff to indicate extended FCB */
- char res[5]; /* reserved */
- uch vattr; /* attribute */
- uch drive; /* drive (1=A, 2=B, ...) */
- uch vn[11]; /* file or volume name */
- char dmmy[5];
- uch nn[11]; /* holds new name if renaming (else reserved) */
- char dmmy2[9];
- } dos_fcb;
- /**************************/
- /* Function volumelabel() */
- /**************************/
- static int volumelabel(newlabel)
- char *newlabel;
- {
- #ifdef DEBUG
- char *p;
- #endif
- int len = strlen(newlabel);
- int fcbseg, dtaseg, fcboff, dtaoff, retv;
- dos_fcb fcb, dta, far *pfcb=&fcb, far *pdta=&dta;
- struct SREGS sregs;
- union REGS regs;
- /*---------------------------------------------------------------------------
- Label the diskette specified by nLabelDrive using FCB calls. (Old ver-
- sions of MS-DOS and OS/2 DOS boxes can't use DOS function 3Ch to create
- labels.) Must use far pointers for MSC FP_* macros to work; must pad
- FCB filenames with spaces; and cannot include dot in 8th position. May
- or may not need to zero out FCBs before using; do so just in case.
- ---------------------------------------------------------------------------*/
- #ifdef WATCOMC_386
- int truseg;
- memset(&sregs, 0, sizeof(sregs));
- memset(®s, 0, sizeof(regs));
- /* PMODE/W does not support extended versions of any dos FCB functions, */
- /* so we have to use brute force, allocating real mode memory for them. */
- regs.w.ax = 0x0100;
- regs.w.bx = (2 * sizeof(dos_fcb) + 15) >> 4; /* size in paragraphs */
- int386(0x31, ®s, ®s); /* DPMI allocate DOS memory */
- if (regs.w.cflag)
- return DF_MDY; /* no memory, return default */
- truseg = regs.w.dx; /* protected mode selector */
- dtaseg = regs.w.ax; /* real mode paragraph */
- fcboff = 0;
- dtaoff = sizeof(dos_fcb);
- #ifdef XXX__MK_FP_IS_BROKEN
- /* XXX This code may not be trustworthy in general, though it is */
- /* valid with DOS/4GW and PMODE/w, which is all we support for now. */
- regs.w.ax = 6;
- regs.w.bx = truseg;
- int386(0x31, ®s, ®s); /* convert seg to linear address */
- pfcb = (dos_fcb far *) (((ulg) regs.w.cx << 16) | regs.w.dx);
- /* pfcb = (dos_fcb far *) ((ulg) dtaseg << 4); */
- pdta = pfcb + 1;
- #else
- pfcb = MK_FP(truseg, fcboff);
- pdta = MK_FP(truseg, dtaoff);
- #endif
- _fmemset((char far *)pfcb, 0, 2 * sizeof(dos_fcb));
- /* we pass the REAL MODE paragraph to the dos interrupts: */
- fcbseg = dtaseg;
- #else /* !WATCOMC_386 */
- memset((char *)&dta, 0, sizeof(dos_fcb));
- memset((char *)&fcb, 0, sizeof(dos_fcb));
- fcbseg = FP_SEG(pfcb);
- fcboff = FP_OFF(pfcb);
- dtaseg = FP_SEG(pdta);
- dtaoff = FP_OFF(pdta);
- #endif /* ?WATCOMC_386 */
- #ifdef DEBUG
- for (p = (char *)&dta; (p - (char *)&dta) < sizeof(dos_fcb); ++p)
- if (*p)
- fprintf(stderr, "error: dta[%d] = %xn", (p - (char *)&dta), *p);
- for (p = (char *)&fcb; (p - (char *)&fcb) < sizeof(dos_fcb); ++p)
- if (*p)
- fprintf(stderr, "error: fcb[%d] = %xn", (p - (char *)&fcb), *p);
- printf("testing pointer macros:n");
- segread(&sregs);
- printf("cs = %x, ds = %x, es = %x, ss = %xn", sregs.cs, sregs.ds, sregs.es,
- sregs.ss);
- #endif /* DEBUG */
- #if 0
- #ifdef __TURBOC__
- bdosptr(0x1a, dta, DO_NOT_CARE);
- #else
- (intdosx method below)
- #endif
- #endif /* 0 */
- /* set the disk transfer address for subsequent FCB calls */
- sregs.ds = dtaseg;
- WREGS(regs,dx) = dtaoff;
- Trace((stderr, "segment:offset of pdta = %x:%xn", dtaseg, dtaoff));
- Trace((stderr, "&dta = %lx, pdta = %lxn", (ulg)&dta, (ulg)pdta));
- regs.h.ah = 0x1a;
- F_intdosx(®s, ®s, &sregs);
- /* fill in the FCB */
- sregs.ds = fcbseg;
- WREGS(regs,dx) = fcboff;
- pfcb->flag = 0xff; /* extended FCB */
- pfcb->vattr = 0x08; /* attribute: disk volume label */
- pfcb->drive = (uch)nLabelDrive;
- #ifdef DEBUG
- Trace((stderr, "segment:offset of pfcb = %x:%xn", sregs.ds, WREGS(regs,dx)));
- Trace((stderr, "&fcb = %lx, pfcb = %lxn", (ulg)&fcb, (ulg)pfcb));
- Trace((stderr, "(2nd check: labelling drive %c:)n", pfcb->drive-1+'A'));
- if (pfcb->flag != fcb.flag)
- fprintf(stderr, "error: pfcb->flag = %d, fcb.flag = %dn",
- pfcb->flag, fcb.flag);
- if (pfcb->drive != fcb.drive)
- fprintf(stderr, "error: pfcb->drive = %d, fcb.drive = %dn",
- pfcb->drive, fcb.drive);
- if (pfcb->vattr != fcb.vattr)
- fprintf(stderr, "error: pfcb->vattr = %d, fcb.vattr = %dn",
- pfcb->vattr, fcb.vattr);
- #endif /* DEBUG */
- /* check for existing label */
- Trace((stderr, "searching for existing label via FCBsn"));
- regs.h.ah = 0x11; /* FCB find first */
- #ifdef WATCOMC_386
- _fstrncpy((char far *)&pfcb->vn, "???????????", 11);
- #else
- strncpy((char *)fcb.vn, "???????????", 11); /* i.e., "*.*" */
- #endif /* ?WATCOMC_386 */
- Trace((stderr, "fcb.vn = %lxn", (ulg)fcb.vn));
- Trace((stderr, "regs.h.ah = %x, regs.x.dx = %04x, sregs.ds = %04xn",
- regs.h.ah, WREGS(regs,dx), sregs.ds));
- Trace((stderr, "flag = %x, drive = %d, vattr = %x, vn = %s = %s.n",
- fcb.flag, fcb.drive, fcb.vattr, fcb.vn, pfcb->vn));
- F_intdosx(®s, ®s, &sregs);
- /*---------------------------------------------------------------------------
- If not previously labelled, write a new label. Otherwise just rename,
- since MS-DOS 2.x has a bug that damages the FAT when the old label is
- deleted.
- ---------------------------------------------------------------------------*/
- if (regs.h.al) {
- Trace((stderr, "no label foundnn"));
- regs.h.ah = 0x16; /* FCB create file */
- #ifdef WATCOMC_386
- _fstrncpy((char far *)pfcb->vn, newlabel, len);
- if (len < 11)
- _fstrncpy((char far *)(pfcb->vn+len), " ", 11-len);
- #else
- strncpy((char *)fcb.vn, newlabel, len);
- if (len < 11) /* fill with spaces */
- strncpy((char *)(fcb.vn+len), " ", 11-len);
- #endif
- Trace((stderr, "fcb.vn = %lx pfcb->vn = %lxn", (ulg)fcb.vn,
- (ulg)pfcb->vn));
- Trace((stderr, "flag = %x, drive = %d, vattr = %xn", fcb.flag,
- fcb.drive, fcb.vattr));
- Trace((stderr, "vn = %s = %s.n", fcb.vn, pfcb->vn));
- F_intdosx(®s, ®s, &sregs);
- regs.h.ah = 0x10; /* FCB close file */
- if (regs.h.al) {
- Trace((stderr, "unable to write volume name (AL = %x)n",
- regs.h.al));
- F_intdosx(®s, ®s, &sregs);
- retv = 1;
- } else {
- F_intdosx(®s, ®s, &sregs);
- Trace((stderr, "new volume label [%s] writtenn", newlabel));
- retv = 0;
- }
- } else {
- Trace((stderr, "found old label [%s]nn", dta.vn)); /* not term. */
- regs.h.ah = 0x17; /* FCB rename */
- #ifdef WATCOMC_386
- _fstrncpy((char far *)pfcb->vn, (char far *)pdta->vn, 11);
- _fstrncpy((char far *)pfcb->nn, newlabel, len);
- if (len < 11)
- _fstrncpy((char far *)(pfcb->nn+len), " ", 11-len);
- #else
- strncpy((char *)fcb.vn, (char *)dta.vn, 11);
- strncpy((char *)fcb.nn, newlabel, len);
- if (len < 11) /* fill with spaces */
- strncpy((char *)(fcb.nn+len), " ", 11-len);
- #endif
- Trace((stderr, "fcb.vn = %lx pfcb->vn = %lxn", (ulg)fcb.vn,
- (ulg)pfcb->vn));
- Trace((stderr, "fcb.nn = %lx pfcb->nn = %lxn", (ulg)fcb.nn,
- (ulg)pfcb->nn));
- Trace((stderr, "flag = %x, drive = %d, vattr = %xn", fcb.flag,
- fcb.drive, fcb.vattr));
- Trace((stderr, "vn = %s = %s.n", fcb.vn, pfcb->vn));
- Trace((stderr, "nn = %s = %s.n", fcb.nn, pfcb->nn));
- F_intdosx(®s, ®s, &sregs);
- if (regs.h.al) {
- Trace((stderr, "Unable to change volume name (AL = %x)n",
- regs.h.al));
- retv = 1;
- } else {
- Trace((stderr, "volume label changed to [%s]n", newlabel));
- retv = 0;
- }
- }
- #ifdef WATCOMC_386
- regs.w.ax = 0x0101; /* free dos memory */
- regs.w.dx = truseg;
- int386(0x31, ®s, ®s);
- #endif
- return retv;
- } /* end function volumelabel() */
- #endif /* !__GO32__ && !__EMX__ */
- #if defined(USE_EF_UT_TIME) || defined(TIMESTAMP)
- /* The following DOS date/time structure is machine-dependent as it
- * assumes "little-endian" byte order. For MSDOS-specific code, which
- * is run on x86 CPUs (or emulators), this assumption is valid; but
- * care should be taken when using this code as template for other ports.
- */
- typedef union {
- ulg z_dostime;
- # ifdef __TURBOC__
- struct ftime ft; /* system file time record */
- # endif
- struct { /* date and time words */
- ush ztime; /* DOS file modification time word */
- ush zdate; /* DOS file modification date word */
- } zft;
- struct { /* DOS date/time components bitfield */
- unsigned zt_se : 5;
- unsigned zt_mi : 6;
- unsigned zt_hr : 5;
- unsigned zd_dy : 5;
- unsigned zd_mo : 4;
- unsigned zd_yr : 7;
- } z_dtf;
- } dos_fdatetime;
- #endif /* USE_EF_UT_TIME || TIMESTAMP */
- /****************************/
- /* Function close_outfile() */
- /****************************/
- void close_outfile(__G)
- __GDEF
- /*
- * MS-DOS VERSION
- *
- * Set the output file date/time stamp according to information from the
- * zipfile directory record for this member, then close the file and set
- * its permissions (archive, hidden, read-only, system). Aside from closing
- * the file, this routine is optional (but most compilers support it).
- */
- {
- #ifdef USE_EF_UT_TIME
- dos_fdatetime dos_dt;
- iztimes z_utime;
- struct tm *t;
- #endif /* USE_EF_UT_TIME */
- /*---------------------------------------------------------------------------
- Copy and/or convert time and date variables, if necessary; then set the
- file time/date. WEIRD BORLAND "BUG": if output is buffered, and if run
- under at least some versions of DOS (e.g., 6.0), and if files are smaller
- than DOS physical block size (i.e., 512 bytes) (?), then files MAY NOT
- get timestamped correctly--apparently setftime() occurs before any data
- are written to the file, and when file is closed and buffers are flushed,
- timestamp is overwritten with current time. Even with a 32K buffer, this
- does not seem to occur with larger files. UnZip output is now unbuffered,
- but if it were not, could still avoid problem by adding "fflush(outfile)"
- just before setftime() call. Weird, huh?
- ---------------------------------------------------------------------------*/
- #ifdef USE_EF_UT_TIME
- if (G.extra_field &&
- #ifdef IZ_CHECK_TZ
- G.tz_is_valid &&
- #endif
- (ef_scan_for_izux(G.extra_field, G.lrec.extra_field_length, 0,
- G.lrec.last_mod_dos_datetime, &z_utime, NULL)
- & EB_UT_FL_MTIME))
- {
- TTrace((stderr, "close_outfile: Unix e.f. modif. time = %ldn",
- z_utime.mtime));
- /* round up (down if "up" overflows) to even seconds */
- if (z_utime.mtime & 1)
- z_utime.mtime = (z_utime.mtime + 1 > z_utime.mtime) ?
- z_utime.mtime + 1 : z_utime.mtime - 1;
- TIMET_TO_NATIVE(z_utime.mtime) /* NOP unless MSC 7.0 or Macintosh */
- t = localtime(&(z_utime.mtime));
- } else
- t = (struct tm *)NULL;
- if (t != (struct tm *)NULL) {
- if (t->tm_year < 80) {
- dos_dt.z_dtf.zt_se = 0;
- dos_dt.z_dtf.zt_mi = 0;
- dos_dt.z_dtf.zt_hr = 0;
- dos_dt.z_dtf.zd_dy = 1;
- dos_dt.z_dtf.zd_mo = 1;
- dos_dt.z_dtf.zd_yr = 0;
- } else {
- dos_dt.z_dtf.zt_se = t->tm_sec >> 1;
- dos_dt.z_dtf.zt_mi = t->tm_min;
- dos_dt.z_dtf.zt_hr = t->tm_hour;
- dos_dt.z_dtf.zd_dy = t->tm_mday;
- dos_dt.z_dtf.zd_mo = t->tm_mon + 1;
- dos_dt.z_dtf.zd_yr = t->tm_year - 80;
- }
- } else {
- dos_dt.z_dostime = G.lrec.last_mod_dos_datetime;
- }
- # ifdef __TURBOC__
- setftime(fileno(G.outfile), &dos_dt.ft);
- # else
- _dos_setftime(fileno(G.outfile), dos_dt.zft.zdate, dos_dt.zft.ztime);
- # endif
- #else /* !USE_EF_UT_TIME */
- # ifdef __TURBOC__
- setftime(fileno(G.outfile),
- (struct ftime *)(&(G.lrec.last_mod_dos_datetime)));
- # else
- _dos_setftime(fileno(G.outfile), (ush)(G.lrec.last_mod_dos_datetime >> 16),
- (ush)(G.lrec.last_mod_dos_datetime));
- # endif
- #endif /* ?USE_EF_UT_TIME */
- /*---------------------------------------------------------------------------
- And finally we can close the file...at least everybody agrees on how to
- do *this*. I think... Also change the mode according to the stored file
- attributes, since we didn't do that when we opened the dude.
- ---------------------------------------------------------------------------*/
- fclose(G.outfile);
- z_dos_chmod(__G__ G.filename, G.pInfo->file_attr);
- } /* end function close_outfile() */
- #ifdef TIMESTAMP
- /*************************/
- /* Function stamp_file() */
- /*************************/
- int stamp_file(fname, modtime)
- ZCONST char *fname;
- time_t modtime;
- {
- dos_fdatetime dos_dt;
- time_t t_even;
- struct tm *t;
- int fd; /* file handle */
- /* round up (down if "up" overflows) to even seconds */
- t_even = ((modtime + 1 > modtime) ? modtime + 1 : modtime) & (~1);
- TIMET_TO_NATIVE(t_even) /* NOP unless MSC 7.0 or Macintosh */
- t = localtime(&t_even);
- if (t == (struct tm *)NULL)
- return -1; /* time conversion error */
- if (t->tm_year < 80) {
- dos_dt.z_dtf.zt_se = 0;
- dos_dt.z_dtf.zt_mi = 0;
- dos_dt.z_dtf.zt_hr = 0;
- dos_dt.z_dtf.zd_dy = 1;
- dos_dt.z_dtf.zd_mo = 1;
- dos_dt.z_dtf.zd_yr = 0;
- } else {
- dos_dt.z_dtf.zt_se = t->tm_sec >> 1;
- dos_dt.z_dtf.zt_mi = t->tm_min;
- dos_dt.z_dtf.zt_hr = t->tm_hour;
- dos_dt.z_dtf.zd_dy = t->tm_mday;
- dos_dt.z_dtf.zd_mo = t->tm_mon + 1;
- dos_dt.z_dtf.zd_yr = t->tm_year - 80;
- }
- if (((fd = open((char *)fname, 0)) == -1) ||
- # ifdef __TURBOC__
- (setftime(fd, &dos_dt.ft)))
- # else
- (_dos_setftime(fd, dos_dt.zft.zdate, dos_dt.zft.ztime)))
- # endif
- {
- if (fd != -1)
- close(fd);
- return -1;
- }
- close(fd);
- return 0;
- } /* end function stamp_file() */
- #endif /* TIMESTAMP */
- #ifndef SFX
- /*************************/
- /* Function dateformat() */
- /*************************/
- int dateformat()
- {
- /*---------------------------------------------------------------------------
- For those operating systems that support it, this function returns a
- value that tells how national convention says that numeric dates are
- displayed. Return values are DF_YMD, DF_DMY and DF_MDY (the meanings
- should be fairly obvious).
- ---------------------------------------------------------------------------*/
- #ifndef WINDLL
- ush CountryInfo[18];
- #if (!defined(__GO32__) && !defined(__EMX__))
- ush far *_CountryInfo = CountryInfo;
- struct SREGS sregs;
- union REGS regs;
- #ifdef WATCOMC_386
- ush seg, para;
- memset(&sregs, 0, sizeof(sregs));
- memset(®s, 0, sizeof(regs));
- /* PMODE/W does not support an extended version of dos function 38, */
- /* so we have to use brute force, allocating real mode memory for it. */
- regs.w.ax = 0x0100;
- regs.w.bx = 3; /* 36 bytes rounds up to 48 */
- int386(0x31, ®s, ®s); /* DPMI allocate DOS memory */
- if (regs.w.cflag)
- return DF_MDY; /* no memory, return default */
- seg = regs.w.dx;
- para = regs.w.ax;
- #ifdef XXX__MK_FP_IS_BROKEN
- /* XXX This code may not be trustworthy in general, though it is
- * valid with DOS/4GW and PMODE/w, which is all we support for now. */
- /* _CountryInfo = (ush far *) (para << 4); */ /* works for some extenders */
- regs.w.ax = 6;
- regs.w.bx = seg;
- int386(0x31, ®s, ®s); /* convert seg to linear address */
- _CountryInfo = (ush far *) (((ulg) regs.w.cx << 16) | regs.w.dx);
- #else
- _CountryInfo = (ush far *) MK_FP(seg, 0);
- #endif
- sregs.ds = para; /* real mode paragraph */
- regs.w.dx = 0; /* no offset from segment */
- regs.w.ax = 0x3800;
- int86x_realmode(0x21, ®s, ®s, &sregs);
- CountryInfo[0] = regs.w.cflag ? 0 : _CountryInfo[0];
- regs.w.ax = 0x0101;
- regs.w.dx = seg;
- int386(0x31, ®s, ®s); /* DPMI free DOS memory */
- #else /* !WATCOMC_386 */
- sregs.ds = FP_SEG(_CountryInfo);
- regs.x.dx = FP_OFF(_CountryInfo);
- regs.x.ax = 0x3800;
- intdosx(®s, ®s, &sregs);
- #endif /* ?WATCOMC_386 */
- #else /* __GO32__ || __EMX__ */
- _dos_getcountryinfo(CountryInfo);
- #endif /* ?(__GO32__ || __EMX__) */
- switch(CountryInfo[0]) {
- case 0:
- return DF_MDY;
- case 1:
- return DF_DMY;
- case 2:
- return DF_YMD;
- }
- #endif /* !WINDLL && !WATCOMC_386 */
- return DF_MDY; /* default for systems without locale info */
- } /* end function dateformat() */
- #ifndef WINDLL
- /************************/
- /* Function version() */
- /************************/
- void version(__G)
- __GDEF
- {
- int len;
- #if defined(__DJGPP__) || defined(__WATCOMC__) ||
- (defined(_MSC_VER) && (_MSC_VER != 800))
- char buf[80];
- #endif
- len = sprintf((char *)slide, LoadFarString(CompiledWith),
- #if defined(__GNUC__)
- # if defined(__DJGPP__)
- (sprintf(buf, "djgpp v%d.%02d / gcc ", __DJGPP__, __DJGPP_MINOR__), buf),
- # elif defined(__GO32__) /* __GO32__ is defined as "1" only (sigh) */
- "djgpp v1.x / gcc ",
- # elif defined(__EMX__) /* ...so is __EMX__ (double sigh) */
- "emx+gcc ",
- # else
- "gcc ",
- # endif
- __VERSION__,
- #elif defined(__WATCOMC__)
- # if (__WATCOMC__ % 10 != 0)
- "Watcom C/C++", (sprintf(buf, " %d.%02d", __WATCOMC__ / 100,
- __WATCOMC__ % 100), buf),
- # else
- "Watcom C/C++", (sprintf(buf, " %d.%d", __WATCOMC__ / 100,
- (__WATCOMC__ % 100) / 10), buf),
- # endif
- #elif defined(__TURBOC__)
- # ifdef __BORLANDC__
- "Borland C++",
- # if (__BORLANDC__ < 0x0200)
- " 1.0",
- # elif (__BORLANDC__ == 0x0200) /* James: __TURBOC__ = 0x0297 */
- " 2.0",
- # elif (__BORLANDC__ == 0x0400)
- " 3.0",
- # elif (__BORLANDC__ == 0x0410) /* __BCPLUSPLUS__ = 0x0310 */
- " 3.1",
- # elif (__BORLANDC__ == 0x0452) /* __BCPLUSPLUS__ = 0x0320 */
- " 4.0 or 4.02",
- # elif (__BORLANDC__ == 0x0460) /* __BCPLUSPLUS__ = 0x0340 */
- " 4.5",
- # elif (__BORLANDC__ == 0x0500)
- " 5.0",
- # else
- " later than 5.0",
- # endif
- # else
- "Turbo C",
- # if (__TURBOC__ > 0x0401) /* Kevin: 3.0 -> 0x0401 */
- "++ later than 3.0",
- # elif (__TURBOC__ >= 0x0400)
- "++ 3.0",
- # elif (__TURBOC__ == 0x0295) /* [661] vfy'd by Kevin */
- "++ 1.0",
- # elif ((__TURBOC__ >= 0x018d) && (__TURBOC__ <= 0x0200)) /* James: 0x0200 */
- " 2.0",
- # elif (__TURBOC__ > 0x0100)
- " 1.5", /* James: 0x0105? */
- # else
- " 1.0", /* James: 0x0100 */
- # endif
- # endif
- #elif defined(MSC)
- # if defined(_QC) && !defined(_MSC_VER)
- "MS Quick C ", "2.0 or earlier", /* _QC is defined as 1 */
- # elif defined(_QC) && (_MSC_VER == 600)
- "MS Quick C ", "2.5 (MSC 6.00)",
- # else
- "Microsoft C ",
- # ifdef _MSC_VER
- # if (_MSC_VER == 800)
- "8.0/8.0c (Visual C++ 1.0/1.5)",
- # else
- (sprintf(buf, "%d.%02d", _MSC_VER/100, _MSC_VER%100), buf),
- # endif
- # else
- "5.1 or earlier",
- # endif
- # endif
- #else
- "unknown compiler", "",
- #endif /* ?compilers */
- "MS-DOS",
- #if (defined(__GNUC__) || defined(WATCOMC_386))
- " (32-bit)",
- #else
- # if defined(M_I86HM) || defined(__HUGE__)
- " (16-bit, huge)",
- # elif defined(M_I86LM) || defined(__LARGE__)
- " (16-bit, large)",
- # elif defined(M_I86MM) || defined(__MEDIUM__)
- " (16-bit, medium)",
- # elif defined(M_I86CM) || defined(__COMPACT__)
- " (16-bit, compact)",
- # elif defined(M_I86SM) || defined(__SMALL__)
- " (16-bit, small)",
- # elif defined(M_I86TM) || defined(__TINY__)
- " (16-bit, tiny)",
- # else
- " (16-bit)",
- # endif
- #endif
- #ifdef __DATE__
- " on ", __DATE__
- #else
- "", ""
- #endif
- );
- (*G.message)((zvoid *)&G, slide, (ulg)len, 0);
- /* MSC can't handle huge macro expansion */
- /* temporary debugging code for Borland compilers only */
- #if (defined(__TURBOC__) && defined(DEBUG))
- Info(slide, 0, ((char *)slide, "tdebug(__TURBOC__ = 0x%04x = %d)n",
- __TURBOC__, __TURBOC__));
- #ifdef __BORLANDC__
- Info(slide, 0, ((char *)slide, "tdebug(__BORLANDC__ = 0x%04x)n",
- __BORLANDC__));
- #else
- Info(slide, 0, ((char *)slide, "tdebug(__BORLANDC__ not defined)n"));
- #endif
- #ifdef __TCPLUSPLUS__
- Info(slide, 0, ((char *)slide, "tdebug(__TCPLUSPLUS__ = 0x%04x)n",
- __TCPLUSPLUS__));
- #else
- Info(slide, 0, ((char *)slide, "tdebug(__TCPLUSPLUS__ not defined)n"));
- #endif
- #ifdef __BCPLUSPLUS__
- Info(slide, 0, ((char *)slide, "tdebug(__BCPLUSPLUS__ = 0x%04x)nn",
- __BCPLUSPLUS__));
- #else
- Info(slide, 0, ((char *)slide, "tdebug(__BCPLUSPLUS__ not defined)nn"));
- #endif
- #endif /* __TURBOC__ && DEBUG */
- } /* end function version() */
- #endif /* !WINDLL */
- #endif /* !SFX */
- #if (defined(__GO32__) || defined(__EMX__))
- #if (!defined(__DJGPP__) || (__DJGPP__ < 2) ||
- ((__DJGPP__ == 2) && (__DJGPP_MINOR__ < 2)))
- int volatile _doserrno;
- #endif /* not "djgpp v2.02 or newer" */
- #if (!defined(__DJGPP__) || (__DJGPP__ < 2))
- unsigned _dos_getcountryinfo(void *countrybuffer)
- {
- asm("movl %0, %%edx": : "g" (countrybuffer));
- asm("movl $0x3800, %eax");
- asm("int $0x21": : : "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi");
- _doserrno = 0;
- asm("jnc 1f");
- asm("movl %%eax, %0": "=m" (_doserrno));
- asm("1:");
- return (unsigned)_doserrno;
- }
- unsigned _dos_setftime(int fd, ush dosdate, ush dostime)
- {
- asm("movl %0, %%ebx": : "g" (fd));
- asm("movl %0, %%ecx": : "g" (dostime));
- asm("movl %0, %%edx": : "g" (dosdate));
- asm("movl $0x5701, %eax");
- asm("int $0x21": : : "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi");
- _doserrno = 0;
- asm("jnc 1f");
- asm("movl %%eax, %0": "=m" (_doserrno));
- errno = EBADF;
- asm("1:");
- return (unsigned)_doserrno;
- }
- unsigned _dos_setfileattr(char *name, unsigned attr)
- {
- #if 0 /* stripping of trailing '/' is not needed for unzip-internal use */
- unsigned namlen = strlen(name);
- char *i_name = alloca(namlen + 1);
- strcpy(i_name, name);
- if (namlen > 1 && i_name[namlen-1] == '/' && i_name[namlen-2] != ':')
- i_name[namlen-1] = ' ';
- asm("movl %0, %%edx": : "g" (i_name));
- #else
- asm("movl %0, %%edx": : "g" (name));
- #endif
- asm("movl %0, %%ecx": : "g" (attr));
- asm("movl $0x4301, %eax");
- asm("int $0x21": : : "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi");
- _doserrno = 0;
- asm("jnc 1f");
- asm("movl %%eax, %0": "=m" (_doserrno));
- switch (_doserrno) {
- case 2:
- case 3:
- errno = ENOENT;
- break;
- case 5:
- errno = EACCES;
- break;
- }
- asm("1:");
- return (unsigned)_doserrno;
- }
- void _dos_getdrive(unsigned *d)
- {
- asm("movl $0x1900, %eax");
- asm("int $0x21": : : "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi");
- asm("xorb %ah, %ah");
- asm("incb %al");
- asm("movl %%eax, %0": "=a" (*d));
- }
- unsigned _dos_creat(char *path, unsigned attr, int *fd)
- {
- asm("movl $0x3c00, %eax");
- asm("movl %0, %%edx": :"g" (path));
- asm("movl %0, %%ecx": :"g" (attr));
- asm("int $0x21": : : "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi");
- asm("movl %%eax, %0": "=a" (*fd));
- _doserrno = 0;
- asm("jnc 1f");
- _doserrno = *fd;
- switch (_doserrno) {
- case 3:
- errno = ENOENT;
- break;
- case 4:
- errno = EMFILE;
- break;
- case 5:
- errno = EACCES;
- break;
- }
- asm("1:");
- return (unsigned)_doserrno;
- }
- unsigned _dos_close(int fd)
- {
- asm("movl %0, %%ebx": : "g" (fd));
- asm("movl $0x3e00, %eax");
- asm("int $0x21": : : "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi");
- _doserrno = 0;
- asm("jnc 1f");
- asm ("movl %%eax, %0": "=m" (_doserrno));
- if (_doserrno == 6) {
- errno = EBADF;
- }
- asm("1:");
- return (unsigned)_doserrno;
- }
- #endif /* !__DJGPP__ || (__DJGPP__ < 2) */
- static int volumelabel(char *name)
- {
- int fd;
- return _dos_creat(name, FA_LABEL, &fd) ? fd : _dos_close(fd);
- }
- #if (defined(__DJGPP__) && (__DJGPP__ >= 2))
- #include <dpmi.h> /* These includes for the country info */
- #include <go32.h>
- #include <sys/farptr.h>
- /* The above _dos_getcountryinfo function doesn't work with djgpp v2, presumably
- * because ds is not set correctly (does it really work at all?). Note that
- * this version only sets the date (ie. CountryInfo[0]).
- */
- unsigned _dos_getcountryinfo(void *countrybuffer)
- {
- __dpmi_regs regs;
- regs.x.ax = 0x3800;
- regs.x.dx = __tb & 0x0f;
- regs.x.ds = (__tb >> 4) & 0xffff;
- _doserrno = __dpmi_int(0x21, ®s);
- *(ush*)countrybuffer = _farpeekw(_dos_ds, __tb & 0xfffff);
- return (unsigned)_doserrno;
- }
- /* Disable determination of "x" bit in st_mode field for [f]stat() calls. */
- int _is_executable (const char *path, int fhandle, const char *ext)
- {
- return 0;
- }
- /* Prevent globbing of filenames. This gives the same functionality as
- * "stubedit <program> globbing=no" did with DJGPP v1.
- */
- char **__crt0_glob_function(char *_arg)
- {
- return NULL;
- }
- /* Reduce the size of the executable and remove the functionality to read
- * the program's environment from whatever $DJGPP points to.
- */
- void __crt0_load_environment_file(char *_app_name)
- {
- }
- #endif /* __DJGPP__ >= 2 */
- #endif /* __GO32__ || __EMX__ */
- #ifdef __EMX__
- #ifdef MORE
- /**************************/
- /* Function screenlines() */
- /**************************/
- int screenlines()
- {
- int scr_dimen[2]; /* scr_dimen[0]: columns, src_dimen[1]: rows */
- _scrsize(scr_dimen);
- return (scr_dimen[1]);
- }
- /****************************/
- /* Function screencolumns() */
- /****************************/
- int screencolumns()
- {
- int scr_dimen[2]; /* scr_dimen[0]: columns, src_dimen[1]: rows */
- _scrsize(scr_dimen);
- return (scr_dimen[0]);
- }
- #endif /* MORE */
- #endif /* __EMX__ */
- #ifdef WATCOMC_386
- static struct RMINFO {
- ulg edi, esi, ebp;
- ulg reserved;
- ulg ebx, edx, ecx, eax;
- ush flags;
- ush es,ds,fs,gs;
- ush ip_ignored,cs_ignored;
- ush sp,ss;
- };
- /* This function is used to call dos interrupts that may not be supported
- * by some particular 32-bit DOS extender. It uses DPMI function 300h to
- * simulate a real mode call of the interrupt. The caller is responsible
- * for providing real mode addresses of any buffer areas used. The docs
- * for PMODE/W imply that this should not be necessary for calling the DOS
- * interrupts that it doesn't extend, but it crashes when this isn't used. */
- static int int86x_realmode(int inter_no, union REGS *in,
- union REGS *out, struct SREGS *seg)
- {
- union REGS local;
- struct SREGS localseg;
- struct RMINFO rmi;
- int r;
- rmi.eax = in->x.eax;
- rmi.ebx = in->x.ebx;
- rmi.ecx = in->x.ecx;
- rmi.edx = in->x.edx;
- rmi.edi = in->x.edi;
- rmi.esi = in->x.esi;
- rmi.ebp = rmi.reserved = 0L;
- rmi.es = seg->es;
- rmi.ds = seg->ds;
- rmi.fs = seg->fs;
- rmi.gs = seg->gs;
- rmi.sp = rmi.ss = rmi.ip_ignored = rmi.cs_ignored = rmi.flags = 0;
- memset(&local, 0, sizeof(local));
- memset(&localseg, 0, sizeof(localseg));
- local.w.ax = 0x0300;
- local.h.bl = inter_no;
- local.h.bh = 0;
- local.w.cx = 0;
- localseg.es = FP_SEG(&rmi);
- local.x.edi = FP_OFF(&rmi);
- r = int386x(0x31, &local, &local, &localseg);
- out->x.eax = rmi.eax;
- out->x.ebx = rmi.ebx;
- out->x.ecx = rmi.ecx;
- out->x.edx = rmi.edx;
- out->x.edi = rmi.edi;
- out->x.esi = rmi.esi;
- out->x.cflag = rmi.flags & INTR_CF;
- return r;
- }
- #endif /* WATCOMC_386 */
- #ifdef DOS_STAT_BANDAID
- /* This papers over a bug in Watcom 10.6's standard library...sigh.
- * Apparently it applies to both the DOS and Win32 stat()s. */
- int stat_bandaid(const char *path, struct stat *buf)
- {
- char newname[4];
- if (!stat(path, buf))
- return 0;
- else if (!strcmp(path, ".") || (path[0] && !strcmp(path + 1, ":."))) {
- strcpy(newname, path);
- newname[strlen(path) - 1] = '\'; /* stat(".") fails for root! */
- return stat(newname, buf);
- } else
- return -1;
- }
- #endif /* DOS_STAT_BANDAID */