/*--------------------------------------------------------------------------- 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 #include #include #include #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; /* 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 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() */ #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 in Unix */ /* can create path as long as not just freshening, or if user told us */ G.create_dirs = (!G.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 = '\0'; /* initialize translation buffer */ pp = pathcomp; /* point to translation buffer */ if (G.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 = '\0'; 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 '\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 (!G.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 (G.filename[strlen(G.filename) - 1] == '/') { checkdir(__G__ G.filename, GETPATH); if (created_dir) { if (QCOND2) { Info(slide, 0, ((char *)slide, " creating: %s\n", 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 == '\0') { Info(slide, 1, ((char *)slide, "mapname: conversion of %s failed\n", 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 ('\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, &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: %s\n", 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 %s\n\ 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 directory\n\ 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: %s\n", buildpath)); 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 = (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++) != '\0') { ++end; normalize_name(old_end); if ((end-buildpath) >= FILNAMSIZ) { *--end = '\0'; Info(slide, 1, ((char *)slide, "checkdir warning: path too long; truncating\n\ %s\n -> %s\n", 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 = '\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 (!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] = '\0'; 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: %s\n", 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] = '\0'; 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 rootpath\n")); 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; /* 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 (G.cflag) { fclose(G.outfile); return; } #ifdef USE_EF_UT_TIME if (G.extra_field && (ef_scan_for_izux(G.extra_field, G.lrec.extra_field_length, 0, G.lrec.last_mod_file_date, &z_utime, NULL) & EB_UT_FL_MTIME)) { struct tm *t; TTrace((stderr, "close_outfile: Unix e.f. modif. time = %ld\n", 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; t = localtime(&(z_utime.mtime)); 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.zt._t.ztime = G.lrec.last_mod_file_time; dos_dt.zt._d.zdate = G.lrec.last_mod_file_date; } _dos_filedate(fileno(G.outfile), dos_dt.z_dostime); #else /* !USE_EF_UT_TIME */ _dos_filedate(fileno(G.outfile), (ulg)G.lrec.last_mod_file_date << 16 | G.lrec.last_mod_file_time); #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->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(fname, 0)) == -1) || (_dos_filedate(fileno(G.outfile), dos_dt.z_dostime))) 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 = '\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'; } }