human68k.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:27k
源码类别:
压缩解压
开发平台:
MultiPlatform
- /*---------------------------------------------------------------------------
- human68k.c
- Human68K-specific routines for use with Info-ZIP's UnZip 5.1 and later.
- Contains: do_wild()
- mapattr()
- mapname()
- checkdir()
- close_outfile()
- stamp_file() (TIMESTAMP only)
- version()
- TwentyOne()
- normalize_name()
- ---------------------------------------------------------------------------*/
- #include <dirent.h>
- #include <sys/dos.h>
- #include <sys/xunistd.h>
- #include <jstring.h>
- #define UNZIP_INTERNAL
- #include "unzip.h"
- static void normalize_name(char *);
- static int created_dir; /* used in mapname(), checkdir() */
- static int renamed_fullpath; /* ditto */
- #ifndef SFX
- /**********************/
- /* Function do_wild() */
- /**********************/
- char *do_wild(__G__ wildspec)
- __GDEF
- char *wildspec; /* only used first time on a given dir */
- {
- static DIR *dir = NULL;
- static char *dirname, *wildname, matchname[FILNAMSIZ];
- static int firstcall=TRUE, have_dirname, dirnamelen;
- struct dirent *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, '/')) == NULL) {
- dirname = ".";
- dirnamelen = 1;
- have_dirname = FALSE;
- wildname = wildspec;
- } else {
- ++wildname; /* point at character after '/' */
- dirnamelen = wildname - wildspec;
- if ((dirname = (char *)malloc(dirnamelen+1)) == NULL) {
- Info(slide, 1, ((char *)slide,
- "warning: cannot allocate wildcard buffersn"));
- strcpy(matchname, wildspec);
- return matchname; /* but maybe filespec was not a wildcard */
- }
- strncpy(dirname, wildspec, dirnamelen);
- dirname[dirnamelen] = ' '; /* terminate for strcpy below */
- have_dirname = TRUE;
- }
- if ((dir = opendir(dirname)) != NULL) {
- while ((file = readdir(dir)) != NULL) {
- Trace((stderr, "do_wild: readdir returns %sn", file->d_name));
- if (file->d_name[0] == '.' && wildname[0] != '.')
- continue; /* Unix: '*' and '?' do not match leading dot */
- if (match(file->d_name, wildname, 0) && /* 0 == case sens. */
- /* skip "." and ".." directory entries */
- strcmp(file->d_name, ".") && strcmp(file->d_name, "..")) {
- Trace((stderr, "do_wild: match() succeedsn"));
- 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(dir);
- dir = 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 == 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.
- */
- while ((file = readdir(dir)) != NULL) {
- Trace((stderr, "do_wild: readdir returns %sn", file->d_name));
- if (file->d_name[0] == '.' && wildname[0] != '.')
- continue; /* Unix: '*' and '?' do not match leading dot */
- if (match(file->d_name, wildname, 0)) { /* 0 == don't ignore case */
- Trace((stderr, "do_wild: match() succeedsn"));
- if (have_dirname) {
- /* strcpy(matchname, dirname); */
- strcpy(matchname+dirnamelen, file->d_name);
- } else
- strcpy(matchname, file->d_name);
- return matchname;
- }
- }
- closedir(dir); /* have read at least one dir entry; nothing left */
- dir = 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
- {
- ulg tmp = G.crec.external_file_attributes;
- switch( G.pInfo->hostnum ) {
- case UNIX_:
- case VMS_:
- case ACORN_:
- case ATARI_:
- case BEOS_:
- case QDOS_:
- G.pInfo->file_attr = _mode2dos(tmp >> 16);
- break;
- default:
- /* set archive bit (file is not backed up) */
- G.pInfo->file_attr =
- (unsigned)(G.crec.external_file_attributes|32) & 0xff;
- break;
- }
- 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 */
- int quote = FALSE; /* flags */
- int error = 0;
- register unsigned workch; /* hold the character being tested */
- /*---------------------------------------------------------------------------
- Initialize various pointers and counters and stuff.
- ---------------------------------------------------------------------------*/
- if (G.pInfo->vollabel)
- return IZ_VOL_LABEL; /* can't set disk volume labels on Human68k */
- /* 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 && (*filename == '/'));
- if (checkdir(__G__ (char *)NULL, INIT) == 10)
- return 10; /* initialize path buffer, unless no memory */
- *pathcomp = ' '; /* initialize translation buffer */
- pp = pathcomp; /* point to translation buffer */
- if (uO.jflag) /* junking directories */
- cp = (char *)strrchr(G.filename, '/');
- if (cp == 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) {
- if (iskanji(workch)) {
- *pp++ = (char)workch;
- quote = TRUE;
- } else if (quote) { /* if character quoted, */
- *pp++ = (char)workch; /* include it literally */
- quote = FALSE;
- } else
- switch (workch) {
- case '/': /* can assume -j flag not given */
- *pp = ' ';
- if ((error = checkdir(__G__ pathcomp, APPEND_DIR)) > 1)
- return error;
- pp = pathcomp; /* reset conversion buffer for next piece */
- lastsemi = NULL; /* leave directory semi-colons alone */
- break;
- case ';': /* VMS version (or DEC-20 attrib?) */
- lastsemi = pp; /* keep for now; remove VMS ";##" */
- *pp++ = (char)workch; /* later, if requested */
- break;
- case ' 26': /* control-V quote for special chars */
- quote = TRUE; /* set flag for next character */
- break;
- case ' ': /* change spaces to underscore under */
- *pp++ = '_'; /* MTS; leave as spaces under Unix */
- break;
- default:
- /* allow European characters in filenames: */
- if (isprint(workch) || (128 <= workch && workch <= 254))
- *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) {
- pp = lastsemi + 1;
- while (isdigit((uch)(*pp)))
- ++pp;
- if (*pp == ' ') /* only digits between ';' and end: nuke */
- *lastsemi = ' ';
- }
- /*---------------------------------------------------------------------------
- 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, " creating: %sn",
- G.filename));
- }
- return IZ_CREATED_DIR; /* set dir time (note trailing '/') */
- }
- return 2; /* dir existed already; don't look for data to extract */
- }
- if (*pathcomp == ' ') {
- Info(slide, 1, ((char *)slide, "mapname: conversion of %s failedn",
- G.filename));
- return 3;
- }
- 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: 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 (' ') */
- # 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;
- char *old_end = end;
- Trace((stderr, "appending dir segment [%s]n", pathcomp));
- while ((*end = *pathcomp++) != ' ')
- ++end;
- normalize_name(old_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? */
- if (stat(buildpath, &G.statbuf)) /* path doesn't exist */
- {
- 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,
- "checkdir error: path too long: %sn",
- buildpath));
- free(buildpath);
- return 4; /* no room for filenames: fatal */
- }
- if (MKDIR(buildpath, 0666) == -1) { /* create the directory */
- Info(slide, 1, ((char *)slide,
- "checkdir error: cannot create %sn
- unable to process %s.n",
- buildpath, 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,
- "checkdir error: %s exists but is not directoryn
- unable to process %s.n",
- buildpath, G.filename));
- free(buildpath);
- return 3; /* path existed but wasn't dir */
- }
- if (too_long) {
- Info(slide, 1, ((char *)slide,
- "checkdir error: path too long: %sn",
- buildpath));
- free(buildpath);
- return 4; /* no room for filenames: fatal */
- }
- *end++ = '/';
- *end = ' ';
- Trace((stderr, "buildpath now = [%s]n", 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", 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) {
- char *old_end = end;
- Trace((stderr, "appending filename [%s]n", pathcomp));
- while ((*end = *pathcomp++) != ' ') {
- ++end;
- normalize_name(old_end);
- if ((end-buildpath) >= FILNAMSIZ) {
- *--end = ' ';
- Info(slide, 1, ((char *)slide,
- "checkdir warning: path too long; truncatingn
- %sn -> %sn",
- G.filename, buildpath));
- return 1; /* filename truncated */
- }
- }
- Trace((stderr, "buildpath now = [%s]n", 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.
- ---------------------------------------------------------------------------*/
- /* 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 10;
- if ((rootlen > 0) && !renamed_fullpath) {
- strcpy(buildpath, rootpath);
- end = buildpath + rootlen;
- } else {
- *buildpath = ' ';
- end = buildpath;
- }
- Trace((stderr, "[%s]n", 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.
- ---------------------------------------------------------------------------*/
- #if (!defined(SFX) || defined(SFX_EXDIR))
- if (FUNCTION == ROOT) {
- Trace((stderr, "initializing root path to [%s]n", pathcomp));
- if (pathcomp == (char *)NULL) {
- rootlen = 0;
- return 0;
- }
- if ((rootlen = strlen(pathcomp)) > 0) {
- int had_trailing_pathsep=FALSE;
- if (pathcomp[rootlen-1] == '/') {
- pathcomp[--rootlen] = ' ';
- had_trailing_pathsep = TRUE;
- }
- if (rootlen > 0 && (SSTAT(pathcomp, &G.statbuf) ||
- !S_ISDIR(G.statbuf.st_mode))) /* path does not exist */
- {
- if (!G.create_dirs /* || iswild(pathcomp) */ ) {
- rootlen = 0;
- return 2; /* skip (or treat as stored file) */
- }
- /* create the directory (could add loop here to scan pathcomp
- * and create more than one level, but why really necessary?) */
- if (MKDIR(pathcomp, 0777) == -1) {
- Info(slide, 1, ((char *)slide,
- "checkdir: cannot create extraction directory: %sn",
- pathcomp));
- rootlen = 0; /* path didn't exist, tried to create, and */
- return 3; /* failed: file exists, or 2+ levels required */
- }
- }
- if ((rootpath = (char *)malloc(rootlen+2)) == NULL) {
- rootlen = 0;
- return 10;
- }
- strcpy(rootpath, pathcomp);
- rootpath[rootlen++] = '/';
- rootpath[rootlen] = ' ';
- Trace((stderr, "rootpath now = [%s]n", 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 close_outfile() */
- /****************************/
- void close_outfile(__G)
- __GDEF
- {
- #ifdef USE_EF_UT_TIME
- iztimes z_utime;
- struct tm *t;
- /* The following DOS date/time structure is machine-dependent as it
- * assumes "little-endian" byte order. For MSDOS-specific code, which
- * is run on ix86 CPUs (or emulators), this assumption is valid; but
- * care should be taken when using this code as template for other ports.
- */
- union {
- ulg z_dostime;
- struct { /* date and time words */
- union { /* DOS file modification time word */
- ush ztime;
- struct {
- unsigned zt_se : 5;
- unsigned zt_mi : 6;
- unsigned zt_hr : 5;
- } _tf;
- } _t;
- union { /* DOS file modification date word */
- ush zdate;
- struct {
- unsigned zd_dy : 5;
- unsigned zd_mo : 4;
- unsigned zd_yr : 7;
- } _df;
- } _d;
- } zt;
- } dos_dt;
- #endif /* USE_EF_UT_TIME */
- if (uO.cflag) {
- fclose(G.outfile);
- return;
- }
- #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.zt._t._tf.zt_se = 0;
- dos_dt.zt._t._tf.zt_mi = 0;
- dos_dt.zt._t._tf.zt_hr = 0;
- dos_dt.zt._d._df.zd_dy = 1;
- dos_dt.zt._d._df.zd_mo = 1;
- dos_dt.zt._d._df.zd_yr = 0;
- } else {
- dos_dt.zt._t._tf.zt_se = t->tm_sec >> 1;
- dos_dt.zt._t._tf.zt_mi = t->tm_min;
- dos_dt.zt._t._tf.zt_hr = t->tm_hour;
- dos_dt.zt._d._df.zd_dy = t->tm_mday;
- dos_dt.zt._d._df.zd_mo = t->tm_mon + 1;
- dos_dt.zt._d._df.zd_yr = t->tm_year - 80;
- }
- } else {
- dos_dt.z_dostime = G.lrec.last_mod_dos_datetime;
- }
- _dos_filedate(fileno(G.outfile), dos_dt.z_dostime);
- #else /* !USE_EF_UT_TIME */
- _dos_filedate(fileno(G.outfile), G.lrec.last_mod_dos_datetime);
- #endif /* ?USE_EF_UT_TIME */
- fclose(G.outfile);
- _dos_chmod(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;
- {
- union {
- ulg z_dostime;
- struct { /* date and time words */
- union { /* DOS file modification time word */
- ush ztime;
- struct {
- unsigned zt_se : 5;
- unsigned zt_mi : 6;
- unsigned zt_hr : 5;
- } _tf;
- } _t;
- union { /* DOS file modification date word */
- ush zdate;
- struct {
- unsigned zd_dy : 5;
- unsigned zd_mo : 4;
- unsigned zd_yr : 7;
- } _df;
- } _d;
- } zt;
- } 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.zt._t._tf.zt_se = 0;
- dos_dt.zt._t._tf.zt_mi = 0;
- dos_dt.zt._t._tf.zt_hr = 0;
- dos_dt.zt._d._df.zd_dy = 1;
- dos_dt.zt._d._df.zd_mo = 1;
- dos_dt.zt._d._df.zd_yr = 0;
- } else {
- dos_dt.zt._t._tf.zt_se = t->tm_sec >> 1;
- dos_dt.zt._t._tf.zt_mi = t->tm_min;
- dos_dt.zt._t._tf.zt_hr = t->tm_hour;
- dos_dt.zt._d._df.zd_dy = t->tm_mday;
- dos_dt.zt._d._df.zd_mo = t->tm_mon + 1;
- dos_dt.zt._d._df.zd_yr = t->tm_year - 80;
- }
- if (((fd = open((char *)fname, 0)) == -1) ||
- (_dos_filedate(fileno(G.outfile), dos_dt.z_dostime)))
- {
- if (fd != -1)
- close(fd);
- return -1;
- }
- close(fd);
- return 0;
- } /* end function stamp_file() */
- #endif /* TIMESTAMP */
- #ifndef SFX
- /************************/
- /* Function version() */
- /************************/
- void version(__G)
- __GDEF
- {
- int len;
- #if 0
- char buf[40];
- #endif
- len = sprintf((char *)slide, LoadFarString(CompiledWith),
- #ifdef __GNUC__
- "gcc ", __VERSION__,
- #else
- # if 0
- "cc ", (sprintf(buf, " version %d", _RELEASE), buf),
- # else
- "unknown compiler", "",
- # endif
- #endif
- "Human68k", " (X68000)",
- #ifdef __DATE__
- " on ", __DATE__
- #else
- "", ""
- #endif
- );
- (*G.message)((zvoid *)&G, slide, (ulg)len, 0);
- } /* end function version() */
- #endif /* !SFX */
- /* Human68K-specific routines */
- #define VALID_CHAR "&#()@_^{}!"
- extern ulg TwentyOneOptions(void);
- static int multi_period = 0;
- static int special_char = 0;
- void
- InitTwentyOne(void)
- {
- ulg stat;
- stat = TwentyOneOptions();
- if (stat == 0 || stat == (unsigned long) -1) {
- special_char = 0;
- multi_period = 0;
- return;
- }
- if (stat & (1UL << 29))
- special_char = 1;
- if (stat & (1UL << 28))
- multi_period = 1;
- }
- static void
- normalize_name(char *name)
- {
- char *dot;
- char *p;
- if (strlen(name) > 18) { /* too long */
- char base[18 + 1];
- char ext[4 + 1];
- if ((dot = jstrrchr(name, '.')) != NULL)
- *dot = ' ';
- strncpy(base, name, 18);
- base[18] = ' ';
- if (dot) {
- *dot = '.';
- strncpy(ext, dot, 4);
- ext[4] = ' ';
- } else
- *ext = ' ';
- strcpy(name, base);
- strcat(name, ext);
- }
- dot = NULL;
- for (p = name; *p; p++) {
- if (iskanji((unsigned char)*p) && p[1] != ' ')
- p++;
- else if (*p == '.') {
- if (!multi_period) {
- dot = p;
- *p = '_';
- }
- } else if (!special_char && !isalnum (*p)
- && strchr(VALID_CHAR, *p) == NULL)
- *p = '_';
- }
- if (dot != NULL) {
- *dot = '.';
- if (strlen(dot) > 4)
- dot[4] = ' ';
- }
- }