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/*---------------------------------------------------------------------------
human68k.c
Human68K-specific routines for use with Info-ZIP's UnZip 5.1 and later.
Contains: do_wild()
mapattr()
mapname()
checkdir()
close_outfile()
TwentyOne()
normalize_name()
---------------------------------------------------------------------------*/
#include <dirent.h>
#include <sys/dos.h>
#include <sys/xunistd.h>
#include <jstring.h>
#include "unzip.h"
static void normalize_name(char *);
static int created_dir; /* used in mapname(), checkdir() */
static int renamed_fullpath; /* ditto */
/**********************/
/* Function do_wild() */
/**********************/
char *do_wild(wildspec)
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;
/* 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) {
fprintf(stderr, "warning: can't allocate wildcard buffers\n");
strcpy(matchname, wildspec);
return matchname; /* but maybe filespec was not a wildcard */
}
strncpy(dirname, wildspec, dirnamelen);
dirname[dirnamelen] = '\0'; /* terminate for strcpy below */
have_dirname = TRUE;
}
if ((dir = opendir(dirname)) != NULL) {
while ((file = readdir(dir)) != NULL) {
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. */
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;
}
/* 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)
if (match(file->d_name, wildname, 0)) { /* 0 == don't ignore case */
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() */
/**********************/
/* Function mapattr() */
/**********************/
int mapattr()
{
ulg tmp = crec.external_file_attributes;
if (pInfo->hostnum == UNIX_ || pInfo->hostnum == VMS_)
pInfo->file_attr = _mode2dos(tmp >> 16);
else
/* set archive bit (file is not backed up): */
pInfo->file_attr = (unsigned)(crec.external_file_attributes|32) & 0xff;
return 0;
} /* end function mapattr() */
/**********************/
/* Function mapname() */
/**********************/
int mapname(renamed) /* return 0 if no error, 1 if caution (filename trunc), */
int renamed; /* 2 if warning (skip file because dir doesn't exist), */
{ /* 3 if error (skip file), 10 if no memory (skip file) */
char pathcomp[FILNAMSIZ]; /* path-component buffer */
char *pp, *cp=NULL; /* character pointers */
char *lastsemi = 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 (pInfo->vollabel)
return IZ_VOL_LABEL; /* can't set disk volume labels in Unix */
/* can create path as long as not just freshening, or if user told us */
create_dirs = (!fflag || renamed);
created_dir = FALSE; /* not yet */
/* user gave full pathname: don't prepend rootpath */
renamed_fullpath = (renamed && (*filename == '/'));
if (checkdir((char *)NULL, INIT) == 10)
return 10; /* initialize path buffer, unless no memory */
*pathcomp = '\0'; /* initialize translation buffer */
pp = pathcomp; /* point to translation buffer */
if (jflag) /* junking directories */
cp = (char *)strrchr(filename, '/');
if (cp == NULL) /* no '/' or not junking dirs */
cp = 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 = '\0';
if ((error = checkdir(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 '\026': /* 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 = '\0'; /* done with pathcomp: terminate it */
/* if not saving them, remove VMS version numbers (appended ";###") */
if (!V_flag && lastsemi) {
pp = lastsemi + 1;
while (isdigit((uch)(*pp)))
++pp;
if (*pp == '\0') /* only digits between ';' and end: nuke */
*lastsemi = '\0';
}
/*---------------------------------------------------------------------------
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 (filename[strlen(filename) - 1] == '/') {
checkdir(filename, GETPATH);
if (created_dir && QCOND2) {
fprintf(stdout, " creating: %s\n", filename);
return IZ_CREATED_DIR; /* set dir time (note trailing '/') */
}
return 2; /* dir existed already; don't look for data to extract */
}
if (*pathcomp == '\0') {
fprintf(stderr, "mapname: conversion of %s failed\n", filename);
return 3;
}
checkdir(pathcomp, APPEND_NAME); /* returns 1 if truncated: care? */
checkdir(filename, GETPATH);
return error;
} /* end function mapname() */
/***********************/
/* Function checkdir() */
/***********************/
int checkdir(pathcomp, flag)
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 ('\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;
char *old_end = end;
Trace((stderr, "appending dir segment [%s]\n", pathcomp));
while ((*end = *pathcomp++) != '\0')
++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, '\0' */
too_long = TRUE; /* check if extracting directory? */
if (stat(buildpath, &statbuf)) { /* path doesn't exist */
if (!create_dirs) { /* told not to create (freshening) */
free(buildpath);
return 2; /* path doesn't exist: nothing to do */
}
if (too_long) {
fprintf(stderr, "checkdir error: path too long: %s\n",
buildpath);
fflush(stderr);
free(buildpath);
return 4; /* no room for filenames: fatal */
}
if (mkdir(buildpath, 0666) == -1) { /* create the directory */
fprintf(stderr, "checkdir error: can't create %s\n\
unable to process %s.\n", buildpath, filename);
fflush(stderr);
free(buildpath);
return 3; /* path didn't exist, tried to create, failed */
}
created_dir = TRUE;
} else if (!S_ISDIR(statbuf.st_mode)) {
fprintf(stderr, "checkdir error: %s exists but is not directory\n\
unable to process %s.\n", buildpath, filename);
fflush(stderr);
free(buildpath);
return 3; /* path existed but wasn't dir */
}
if (too_long) {
fprintf(stderr, "checkdir error: path too long: %s\n", buildpath);
fflush(stderr);
free(buildpath);
return 4; /* no room for filenames: fatal */
}
*end++ = '/';
*end = '\0';
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 = 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++) != '\0') {
++end;
normalize_name(old_end);
if ((end-buildpath) >= FILNAMSIZ) {
*--end = '\0';
fprintf(stderr, "checkdir warning: path too long; truncating\n\
checkdir warning: path too long; truncating\n\
%s\n -> %s\n", filename, buildpath);
fflush(stderr);
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(filename)+rootlen+1)) == NULL)
return 10;
if ((rootlen > 0) && !renamed_fullpath) {
strcpy(buildpath, rootpath);
end = buildpath + rootlen;
} else {
*buildpath = '\0';
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 (FUNCTION == ROOT) {
Trace((stderr, "initializing root path to [%s]\n", pathcomp));
if (pathcomp == NULL) {
rootlen = 0;
return 0;
}
if ((rootlen = strlen(pathcomp)) > 0) {
int had_trailing_pathsep=FALSE;
if (pathcomp[rootlen-1] == '/') {
pathcomp[--rootlen] = '\0';
had_trailing_pathsep = TRUE;
}
if (stat(pathcomp, &statbuf) || !S_ISDIR(statbuf.st_mode)) {
/* path does not exist */
if (!create_dirs /* || isshexp(pathcomp) */
#ifdef OLD_EXDIR
|| !had_trailing_pathsep
#endif
) {
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) {
fprintf(stderr,
"checkdir: can't create extraction directory: %s\n",
pathcomp);
fflush(stderr);
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] = '\0';
}
Trace((stderr, "rootpath now = [%s]\n", rootpath));
return 0;
}
/*---------------------------------------------------------------------------
END: free rootpath, immediately prior to program exit.
---------------------------------------------------------------------------*/
if (FUNCTION == END) {
Trace((stderr, "freeing rootpath\n"));
if (rootlen > 0)
free(rootpath);
return 0;
}
return 99; /* should never reach */
} /* end function checkdir() */
/****************************/
/* Function close_outfile() */
/****************************/
void close_outfile()
{
if (cflag) {
fclose(outfile);
return;
}
_dos_filedate(fileno(outfile),
(ulg)lrec.last_mod_file_date << 16 | lrec.last_mod_file_time);
fclose(outfile);
_dos_chmod(filename, pInfo->file_attr);
} /* end function close_outfile() */
/* 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 = '\0';
strncpy(base, name, 18);
base[18] = '\0';
if (dot) {
*dot = '.';
strncpy(ext, dot, 4);
ext[4] = '\0';
} else
*ext = '\0';
strcpy(name, base);
strcat(name, ext);
}
dot = NULL;
for (p = name; *p; p++) {
if (iskanji((unsigned char)*p) && p[1] != '\0')
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] = '\0';
}
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.