/* Copyright (c) 1990-2008 Info-ZIP. All rights reserved. See the accompanying file LICENSE, version 2000-Apr-09 or later (the contents of which are also included in unzip.h) for terms of use. If, for some reason, all these files are missing, the Info-ZIP license also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html */ /*--------------------------------------------------------------------------- atari.c Atari-specific routines for use with Info-ZIP's UnZip 5.1 and later. Contains: readdir() do_wild() <-- generic enough to put in fileio.c? mapattr() mapname() checkdir() mkdir() close_outfile() stamp_file() [optional feature] version() Due to the amazing MiNT library being very, very close to BSD unix's library, I'm using the unix.c as a base for this. Note: If you're not going to compile this with the MiNT libraries (for GNU C, Turbo C, Pure C, Lattice C, or Heat & Serve C), you're going to be in for some nasty work. Most of the modifications in this file were made by Chris Herborth (cherborth@semprini.waterloo-rdp.on.ca) and /should/ be marked with [cjh]. ---------------------------------------------------------------------------*/ #define UNZIP_INTERNAL #include "unzip.h" #include /* MiNTlibs has dirent [cjh] */ static int created_dir; /* used in mapname(), checkdir() */ static int renamed_fullpath; /* ditto */ #ifndef SFX /**********************/ /* Function do_wild() */ /* for porting: dir separator; match(ignore_case) */ /**********************/ char *do_wild(__G__ wildspec) __GDEF ZCONST char *wildspec; /* only used first time on a given dir */ { static DIR *wild_dir = (DIR *)NULL; static ZCONST char *wildname; static char *dirname, matchname[FILNAMSIZ]; static int notfirstcall=FALSE, have_dirname, dirnamelen; struct dirent *file; /* Even when we're just returning wildspec, we *always* do so in * matchname[]--calling routine is allowed to append four characters * to the returned string, and wildspec may be a pointer to argv[]. */ if (!notfirstcall) { /* first call: must initialize everything */ notfirstcall = TRUE; if (!iswild(wildspec)) { strncpy(matchname, wildspec, FILNAMSIZ); matchname[FILNAMSIZ-1] = '\0'; have_dirname = FALSE; dir = NULL; return matchname; } /* break the wildspec into a directory part and a wildcard filename */ if ((wildname = strrchr(wildspec, '/')) == (ZCONST char *)NULL) { dirname = "."; dirnamelen = 1; have_dirname = FALSE; wildname = wildspec; } else { ++wildname; /* point at character after '/' */ dirnamelen = wildname - wildspec; if ((dirname = (char *)malloc(dirnamelen+1)) == (char *)NULL) { Info(slide, 0x201, ((char *)slide, "warning: cannot allocate wildcard buffers\n")); strncpy(matchname, wildspec, FILNAMSIZ); matchname[FILNAMSIZ-1] = '\0'; return matchname; /* but maybe filespec was not a wildcard */ } strncpy(dirname, wildspec, dirnamelen); dirname[dirnamelen] = '\0'; /* terminate for strcpy below */ have_dirname = TRUE; } if ((wild_dir = opendir(dirname)) != (DIR *)NULL) { while ((file = readdir(wild_dir)) != (struct dirent *)NULL) { Trace((stderr, "do_wild: readdir returns %s\n", file->d_name)); if (file->d_name[0] == '.' && wildname[0] != '.') continue; /* Unix: '*' and '?' do not match leading dot */ /* Need something here for TOS filesystem? [cjh] */ if (match(file->d_name, wildname, 0 WISEP) && /* 0=case sens.*/ /* skip "." and ".." directory entries */ strcmp(file->d_name, ".") && strcmp(file->d_name, "..")) { Trace((stderr, "do_wild: match() succeeds\n")); if (have_dirname) { strcpy(matchname, dirname); strcpy(matchname+dirnamelen, file->d_name); } else strcpy(matchname, file->d_name); return matchname; } } /* if we get to here directory is exhausted, so close it */ closedir(wild_dir); wild_dir = (DIR *)NULL; } /* return the raw wildspec in case that works (e.g., directory not * searchable, but filespec was not wild and file is readable) */ strncpy(matchname, wildspec, FILNAMSIZ); matchname[FILNAMSIZ-1] = '\0'; return matchname; } /* last time through, might have failed opendir but returned raw wildspec */ if (wild_dir == (DIR *)NULL) { notfirstcall = FALSE; /* nothing left to try--reset for new wildspec */ if (have_dirname) free(dirname); return (char *)NULL; } /* If we've gotten this far, we've read and matched at least one entry * successfully (in a previous call), so dirname has been copied into * matchname already. */ while ((file = readdir(wild_dir)) != (struct dirent *)NULL) { /* May need special TOS handling here. [cjh] */ Trace((stderr, "do_wild: readdir returns %s\n", 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 WISEP)) { /* 0 = case sens. */ Trace((stderr, "do_wild: match() succeeds\n")); if (have_dirname) { /* strcpy(matchname, dirname); */ strcpy(matchname+dirnamelen, file->d_name); } else strcpy(matchname, file->d_name); return matchname; } } closedir(wild_dir); /* have read at least one entry; nothing left */ wild_dir = (DIR *)NULL; notfirstcall = FALSE; /* reset for new wildspec */ if (have_dirname) free(dirname); return (char *)NULL; } /* end function do_wild() */ #endif /* !SFX */ /**********************/ /* Function mapattr() */ /**********************/ int mapattr(__G) __GDEF { int r; ulg tmp = G.crec.external_file_attributes; G.pInfo->file_attr = 0; /* initialized to 0 for check in "default" branch below... */ switch (G.pInfo->hostnum) { case AMIGA_: tmp = (unsigned)(tmp>>17 & 7); /* Amiga RWE bits */ G.pInfo->file_attr = (unsigned)(tmp<<6 | tmp<<3 | tmp); break; case THEOS_: tmp &= 0xF1FFFFFFL; if ((tmp & 0xF0000000L) != 0x40000000L) tmp &= 0x01FFFFFFL; /* not a dir, mask all ftype bits */ else tmp &= 0x41FFFFFFL; /* leave directory bit as set */ /* fall through! */ case UNIX_: case VMS_: case ACORN_: case ATARI_: case ATHEOS_: case BEOS_: case QDOS_: case TANDEM_: r = FALSE; G.pInfo->file_attr = (unsigned)(tmp >> 16); if (G.pInfo->file_attr == 0 && G.extra_field) { /* Some (non-Info-ZIP) implementations of Zip for Unix and * VMS (and probably others ??) leave 0 in the upper 16-bit * part of the external_file_attributes field. Instead, they * store file permission attributes in some extra field. * As a work-around, we search for the presence of one of * these extra fields and fall back to the MSDOS compatible * part of external_file_attributes if one of the known * e.f. types has been detected. * Later, we might implement extraction of the permission * bits from the VMS extra field. But for now, the work-around * should be sufficient to provide "readable" extracted files. * (For ASI Unix e.f., an experimental remap of the e.f. * mode value IS already provided!) */ ush ebID; unsigned ebLen; uch *ef = G.extra_field; unsigned ef_len = G.crec.extra_field_length; while (!r && ef_len >= EB_HEADSIZE) { ebID = makeword(ef); ebLen = (unsigned)makeword(ef+EB_LEN); if (ebLen > (ef_len - EB_HEADSIZE)) /* discoverd some e.f. inconsistency! */ break; switch (ebID) { case EF_ASIUNIX: if (ebLen >= (EB_ASI_MODE+2)) { G.pInfo->file_attr = (unsigned)makeword(ef+(EB_HEADSIZE+EB_ASI_MODE)); /* force stop of loop: */ ef_len = (ebLen + EB_HEADSIZE); break; } /* else: fall through! */ case EF_PKVMS: /* "found nondecypherable e.f. with perm. attr" */ r = TRUE; default: break; } ef_len -= (ebLen + EB_HEADSIZE); ef += (ebLen + EB_HEADSIZE); } } if (!r) { #ifdef SYMLINKS /* Check if the file is a (POSIX-compatible) symbolic link. * We restrict symlink support to those "made-by" hosts that * are known to support symbolic links. */ G.pInfo->symlink = S_ISLNK(G.pInfo->file_attr) && SYMLINK_HOST(G.pInfo->hostnum); #endif return 0; } /* fall through! */ /* all remaining cases: expand MSDOS read-only bit into write perms */ case FS_FAT_: /* PKWARE's PKZip for Unix marks entries as FS_FAT_, but stores the * Unix attributes in the upper 16 bits of the external attributes * field, just like Info-ZIP's Zip for Unix. We try to use that * value, after a check for consistency with the MSDOS attribute * bits (see below). */ G.pInfo->file_attr = (unsigned)(tmp >> 16); /* fall through! */ case FS_HPFS_: case FS_NTFS_: case MAC_: case TOPS20_: default: /* Ensure that DOS subdir bit is set when the entry's name ends * in a '/'. Some third-party Zip programs fail to set the subdir * bit for directory entries. */ if ((tmp & 0x10) == 0) { extent fnlen = strlen(G.filename); if (fnlen > 0 && G.filename[fnlen-1] == '/') tmp |= 0x10; } /* read-only bit --> write perms; subdir bit --> dir exec bit */ tmp = !(tmp & 1) << 1 | (tmp & 0x10) >> 4; if ((G.pInfo->file_attr & 0700) == (unsigned)(0400 | tmp<<6)) { /* keep previous G.pInfo->file_attr setting, when its "owner" * part appears to be consistent with DOS attribute flags! */ #ifdef SYMLINKS /* Entries "made by FS_FAT_" could have been zipped on a * system that supports POSIX-style symbolic links. */ G.pInfo->symlink = S_ISLNK(G.pInfo->file_attr) && (G.pInfo->hostnum == FS_FAT_); #endif return 0; } G.pInfo->file_attr = (unsigned)(0444 | tmp<<6 | tmp<<3 | tmp); break; } /* end switch (host-OS-created-by) */ /* for originating systems with no concept of "group," "other," "system": */ umask( (int)(tmp=umask(0)) ); /* apply mask to expanded r/w(/x) perms */ G.pInfo->file_attr &= ~tmp; return 0; } /* end function mapattr() */ /************************/ /* Function mapname() */ /************************/ int mapname(__G__ renamed) __GDEF int renamed; /* * returns: * MPN_OK - no problem detected * MPN_INF_TRUNC - caution (truncated filename) * MPN_INF_SKIP - info "skip entry" (dir doesn't exist) * MPN_ERR_SKIP - error -> skip entry * MPN_ERR_TOOLONG - error -> path is too long * MPN_NOMEM - error (memory allocation failed) -> skip entry * [also MPN_VOL_LABEL, MPN_CREATED_DIR] */ { char pathcomp[FILNAMSIZ]; /* path-component buffer */ char *pp, *cp=(char *)NULL; /* character pointers */ char *lastsemi=(char *)NULL; /* pointer to last semi-colon in pathcomp */ #ifdef ACORN_FTYPE_NFS char *lastcomma=(char *)NULL; /* pointer to last comma in pathcomp */ RO_extra_block *ef_spark; /* pointer Acorn FTYPE ef block */ #endif int killed_ddot = FALSE; /* is set when skipping "../" pathcomp */ int error = MPN_OK; register unsigned workch; /* hold the character being tested */ /*--------------------------------------------------------------------------- Initialize various pointers and counters and stuff. ---------------------------------------------------------------------------*/ if (G.pInfo->vollabel) return MPN_VOL_LABEL; /* can't set disk volume labels on Atari */ /* can create path as long as not just freshening, or if user told us */ G.create_dirs = (!uO.fflag || renamed); created_dir = FALSE; /* not yet */ /* user gave full pathname: don't prepend rootpath */ renamed_fullpath = (renamed && (*G.filename == '/')); if (checkdir(__G__ (char *)NULL, INIT) == MPN_NOMEM) return MPN_NOMEM; /* initialize path buffer, unless no memory */ *pathcomp = '\0'; /* initialize translation buffer */ pp = pathcomp; /* point to translation buffer */ if (uO.jflag) /* junking directories */ cp = (char *)strrchr(G.filename, '/'); if (cp == (char *)NULL) /* no '/' or not junking dirs */ cp = G.filename; /* point to internal zipfile-member pathname */ else ++cp; /* point to start of last component of path */ /*--------------------------------------------------------------------------- Begin main loop through characters in filename. ---------------------------------------------------------------------------*/ while ((workch = (uch)*cp++) != 0) { switch (workch) { case '/': /* can assume -j flag not given */ *pp = '\0'; if (strcmp(pathcomp, ".") == 0) { /* don't bother appending "./" to the path */ *pathcomp = '\0'; } else if (!uO.ddotflag && strcmp(pathcomp, "..") == 0) { /* "../" dir traversal detected, skip over it */ *pathcomp = '\0'; killed_ddot = TRUE; /* set "show message" flag */ } /* when path component is not empty, append it now */ if (*pathcomp != '\0' && ((error = checkdir(__G__ pathcomp, APPEND_DIR)) & MPN_MASK) > MPN_INF_TRUNC) return error; pp = pathcomp; /* reset conversion buffer for next piece */ lastsemi = (char *)NULL; /* leave direct. semi-colons alone */ break; case ';': /* VMS version (or DEC-20 attrib?) */ lastsemi = pp; *pp++ = ';'; /* keep for now; remove VMS ";##" */ break; /* later, if requested */ #ifdef ACORN_FTYPE_NFS case ',': /* NFS filetype extension */ lastcomma = pp; *pp++ = ','; /* keep for now; may need to remove */ break; /* later, if requested */ #endif #ifdef MTS case ' ': /* change spaces to underscore under */ *pp++ = '_'; /* MTS; leave as spaces under Unix */ break; #endif default: /* allow European characters in filenames: */ if (isprint(workch) || (128 <= workch && workch <= 254)) *pp++ = (char)workch; } /* end switch */ } /* end while loop */ /* Show warning when stripping insecure "parent dir" path components */ if (killed_ddot && QCOND2) { Info(slide, 0, ((char *)slide, "warning: skipped \"../\" path component(s) in %s\n", FnFilter1(G.filename))); if (!(error & ~MPN_MASK)) error = (error & MPN_MASK) | PK_WARN; } /*--------------------------------------------------------------------------- Report if directory was created (and no file to create: filename ended in '/'), check name to be sure it exists, and combine path and name be- fore exiting. ---------------------------------------------------------------------------*/ if (G.filename[strlen(G.filename) - 1] == '/') { checkdir(__G__ G.filename, GETPATH); if (created_dir) { if (QCOND2) { Info(slide, 0, ((char *)slide, " creating: %s\n", FnFilter1(G.filename))); } /* set dir time (note trailing '/') */ return (error & ~MPN_MASK) | MPN_CREATED_DIR; } /* dir existed already; don't look for data to extract */ return (error & ~MPN_MASK) | MPN_INF_SKIP; } *pp = '\0'; /* done with pathcomp: terminate it */ /* if not saving them, remove VMS version numbers (appended ";###") */ if (!uO.V_flag && lastsemi) { pp = lastsemi + 1; while (isdigit((uch)(*pp))) ++pp; if (*pp == '\0') /* only digits between ';' and end: nuke */ *lastsemi = '\0'; } /* On UNIX (and compatible systems), "." and ".." are reserved for * directory navigation and cannot be used as regular file names. * These reserved one-dot and two-dot names are mapped to "_" and "__". */ if (strcmp(pathcomp, ".") == 0) *pathcomp = '_'; else if (strcmp(pathcomp, "..") == 0) strcpy(pathcomp, "__"); #ifdef ACORN_FTYPE_NFS /* translate Acorn filetype information if asked to do so */ if (uO.acorn_nfs_ext && (ef_spark = (RO_extra_block *) getRISCOSexfield(G.extra_field, G.lrec.extra_field_length)) != (RO_extra_block *)NULL) { /* file *must* have a RISC OS extra field */ long ft = (long)makelong(ef_spark->loadaddr); /*32-bit*/ if (lastcomma) { pp = lastcomma + 1; while (isxdigit((uch)(*pp))) ++pp; if (pp == lastcomma+4 && *pp == '\0') *lastcomma='\0'; /* nuke */ } if ((ft & 1<<31)==0) ft=0x000FFD00; sprintf(pathcomp+strlen(pathcomp), ",%03x", (int)(ft>>8) & 0xFFF); } #endif /* ACORN_FTYPE_NFS */ if (*pathcomp == '\0') { Info(slide, 1, ((char *)slide, "mapname: conversion of %s failed\n", FnFilter1(G.filename))); return (error & ~MPN_MASK) | MPN_ERR_SKIP; } checkdir(__G__ pathcomp, APPEND_NAME); /* returns 1 if truncated: care? */ checkdir(__G__ G.filename, GETPATH); return error; } /* end function mapname() */ #if 0 /*========== NOTES ==========*/ extract-to dir: a:path/ buildpath: path1/path2/ ... (NULL-terminated) pathcomp: filename mapname(): loop over chars in zipfile member name checkdir(path component, COMPONENT | CREATEDIR) --> map as required? (d:/tmp/unzip/) (disk:[tmp.unzip.) (d:/tmp/unzip/jj/) (disk:[tmp.unzip.jj.) (d:/tmp/unzip/jj/temp/) (disk:[tmp.unzip.jj.temp.) finally add filename itself and check for existence? (could use with rename) (d:/tmp/unzip/jj/temp/msg.outdir) (disk:[tmp.unzip.jj.temp]msg.outdir) checkdir(name, GETPATH) --> copy path to name and free space #endif /* 0 */ /***********************/ /* Function checkdir() */ /***********************/ int checkdir(__G__ pathcomp, flag) __GDEF char *pathcomp; int flag; /* * returns: * MPN_OK - no problem detected * MPN_INF_TRUNC - (on APPEND_NAME) truncated filename * MPN_INF_SKIP - path doesn't exist, not allowed to create * MPN_ERR_SKIP - path doesn't exist, tried to create and failed; or path * exists and is not a directory, but is supposed to be * MPN_ERR_TOOLONG - path is too long * MPN_NOMEM - can't allocate memory for filename buffers */ { static int rootlen = 0; /* length of rootpath */ static char *rootpath; /* user's "extract-to" directory */ static char *buildpath; /* full path (so far) to extracted file */ static char *end; /* pointer to end of buildpath ('\0') */ # define FN_MASK 7 # define FUNCTION (flag & FN_MASK) /*--------------------------------------------------------------------------- APPEND_DIR: append the path component to the path being built and check for its existence. If doesn't exist and we are creating directories, do so for this one; else signal success or error as appropriate. ---------------------------------------------------------------------------*/ if (FUNCTION == APPEND_DIR) { int too_long = FALSE; /* SHORT_NAMES required for TOS, but it has to co-exist for minix fs... [cjh] */ #ifdef SHORT_NAMES char *old_end = end; #endif Trace((stderr, "appending dir segment [%s]\n", FnFilter1(pathcomp))); while ((*end = *pathcomp++) != '\0') ++end; /* SHORT_NAMES required for TOS, but it has to co-exist for minix fs... [cjh] */ #ifdef SHORT_NAMES /* path components restricted to 14 chars, typically */ if ((end-old_end) > FILENAME_MAX) /* GRR: proper constant? */ *(end = old_end + FILENAME_MAX) = '\0'; #endif /* GRR: could do better check, see if overrunning buffer as we go: * check end-buildpath after each append, set warning variable if * within 20 of FILNAMSIZ; then if var set, do careful check when * appending. Clear variable when begin new path. */ if ((end-buildpath) > FILNAMSIZ-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 MPN_INF_SKIP; /* path doesn't exist: nothing to do */ } if (too_long) { Info(slide, 1, ((char *)slide, "checkdir error: path too long: %s\n", FnFilter1(buildpath))); free(buildpath); /* no room for filenames: fatal */ return MPN_ERR_TOOLONG; } if (mkdir(buildpath, 0777) == -1) { /* create the directory */ Info(slide, 1, ((char *)slide, "checkdir error: cannot create %s\n\ unable to process %s.\n", FnFilter2(buildpath), FnFilter1(G.filename))); free(buildpath); /* path didn't exist, tried to create, failed */ return MPN_ERR_SKIP; } created_dir = TRUE; } else if (!S_ISDIR(G.statbuf.st_mode)) { Info(slide, 1, ((char *)slide, "checkdir error: %s exists but is not directory\n\ unable to process %s.\n", FnFilter2(buildpath), FnFilter(G.filename))); free(buildpath); /* path existed but wasn't dir */ return MPN_ERR_SKIP; } if (too_long) { Info(slide, 1, ((char *)slide, "checkdir error: path too long: %s\n", FnFilter1(buildpath))); free(buildpath); /* no room for filenames: fatal */ return MPN_ERR_TOOLONG; } *end++ = '/'; *end = '\0'; Trace((stderr, "buildpath now = [%s]\n", FnFilter1(buildpath))); return MPN_OK; } /* end if (FUNCTION == APPEND_DIR) */ /*--------------------------------------------------------------------------- GETPATH: copy full path to the string pointed at by pathcomp, and free buildpath. ---------------------------------------------------------------------------*/ if (FUNCTION == GETPATH) { strcpy(pathcomp, buildpath); Trace((stderr, "getting and freeing path [%s]\n", FnFilter1(pathcomp))); free(buildpath); buildpath = end = (char *)NULL; return MPN_OK; } /*--------------------------------------------------------------------------- APPEND_NAME: assume the path component is the filename; append it and return without checking for existence. ---------------------------------------------------------------------------*/ if (FUNCTION == APPEND_NAME) { /* SHORT_NAMES required for TOS, but it has to co-exist for minix fs... [cjh] */ #ifdef SHORT_NAMES char *old_end = end; #endif Trace((stderr, "appending filename [%s]\n", FnFilter1(pathcomp))); while ((*end = *pathcomp++) != '\0') { ++end; /* SHORT_NAMES required for TOS, but it has to co-exist for minix fs... [cjh] */ #ifdef SHORT_NAMES /* truncate name at 14 characters, typically */ if ((end-old_end) > FILENAME_MAX) /* GRR: proper constant? */ *(end = old_end + FILENAME_MAX) = '\0'; #endif if ((end-buildpath) >= FILNAMSIZ) { *--end = '\0'; Info(slide, 0x201, ((char *)slide, "checkdir warning: path too long; truncating\n\ %s\n -> %s\n", FnFilter1(G.filename), FnFilter2(buildpath))); return MPN_INF_TRUNC; /* filename truncated */ } } Trace((stderr, "buildpath now = [%s]\n", FnFilter1(buildpath))); /* could check for existence here, prompt for new name... */ return MPN_OK; } /*--------------------------------------------------------------------------- INIT: allocate and initialize buffer space for the file currently being extracted. If file was renamed with an absolute path, don't prepend the extract-to path. ---------------------------------------------------------------------------*/ /* GRR: for VMS and TOPS-20, add up to 13 to strlen */ if (FUNCTION == INIT) { Trace((stderr, "initializing buildpath to ")); #ifdef ACORN_FTYPE_NFS if ((buildpath = (char *)malloc(strlen(G.filename)+rootlen+ (uO.acorn_nfs_ext ? 5 : 1))) #else if ((buildpath = (char *)malloc(strlen(G.filename)+rootlen+1)) #endif == (char *)NULL) return MPN_NOMEM; if ((rootlen > 0) && !renamed_fullpath) { strcpy(buildpath, rootpath); end = buildpath + rootlen; } else { *buildpath = '\0'; end = buildpath; } Trace((stderr, "[%s]\n", FnFilter1(buildpath))); return MPN_OK; } /*--------------------------------------------------------------------------- ROOT: if appropriate, store the path in rootpath and create it if necessary; else assume it's a zipfile member and return. This path segment gets used in extracting all members from every zipfile specified on the command line. ---------------------------------------------------------------------------*/ #if (!defined(SFX) || defined(SFX_EXDIR)) if (FUNCTION == ROOT) { Trace((stderr, "initializing root path to [%s]\n", pathcomp)); if (pathcomp == (char *)NULL) { rootlen = 0; return MPN_OK; } if (rootlen > 0) /* rootpath was already set, nothing to do */ return MPN_OK; if ((rootlen = strlen(pathcomp)) > 0) { char *tmproot; if ((tmproot = (char *)malloc(rootlen+2)) == (char *)NULL) { rootlen = 0; return MPN_NOMEM; } strcpy(tmproot, pathcomp); if (tmproot[rootlen-1] == '/') { tmproot[--rootlen] = '\0'; } if (rootlen > 0 && (stat(tmproot, &G.statbuf) || !S_ISDIR(G.statbuf.st_mode))) { /* path does not exist */ if (!G.create_dirs /* || iswild(tmproot) */ ) { free(tmproot); rootlen = 0; /* skip (or treat as stored file) */ return MPN_INF_SKIP; } /* create the directory (could add loop here scanning tmproot * to create more than one level, but why really necessary?) */ if (mkdir(tmproot, 0777) == -1) { Info(slide, 1, ((char *)slide, "checkdir: cannot create extraction directory: %s\n", FnFilter1(tmproot))); free(tmproot); rootlen = 0; /* path didn't exist, tried to create, and failed: */ /* file exists, or 2+ subdir levels required */ return MPN_ERR_SKIP; } } tmproot[rootlen++] = '/'; tmproot[rootlen] = '\0'; if ((rootpath = (char *)realloc(tmproot, rootlen+1)) == NULL) { free(tmproot); rootlen = 0; return MPN_NOMEM; } Trace((stderr, "rootpath now = [%s]\n", FnFilter1(rootpath))); } return MPN_OK; } #endif /* !SFX || SFX_EXDIR */ /*--------------------------------------------------------------------------- END: free rootpath, immediately prior to program exit. ---------------------------------------------------------------------------*/ if (FUNCTION == END) { Trace((stderr, "freeing rootpath\n")); if (rootlen > 0) { free(rootpath); rootlen = 0; } return MPN_OK; } return MPN_INVALID; /* should never reach */ } /* end function checkdir() */ /****************************/ /* Function close_outfile() */ /****************************/ void close_outfile(__G) /* GRR: change to return PK-style warning level */ __GDEF { #ifdef USE_EF_UT_TIME unsigned eb_izux_flg; iztimes zt; #endif ztimbuf tp; /*--------------------------------------------------------------------------- If symbolic links are supported, allocate storage for a symlink control structure, put the uncompressed "data" and other required info in it, and add the structure to the "deferred symlinks" chain. Since we know it's a symbolic link to start with, we shouldn't have to worry about overflowing unsigned ints with unsigned longs. ---------------------------------------------------------------------------*/ /* symlinks allowed on minix filesystems [cjh] * Hopefully this will work properly... We won't bother to try if * MiNT isn't present; the symlink should fail if we're on a TOS * filesystem. * BUG: should we copy the original file to the "symlink" if the * link fails? */ if (G.symlnk) { extent ucsize = (extent)G.lrec.ucsize; /* size of the symlink entry is the sum of * (struct size (includes 1st '\0') + 1 additional trailing '\0'), * system specific attribute data size (might be 0), * and the lengths of name and link target. */ extent slnk_entrysize = (sizeof(slinkentry) + 1) + ucsize + strlen(G.filename); slinkentry *slnk_entry; if (slnk_entrysize < ucsize) { Info(slide, 0x201, ((char *)slide, "warning: symbolic link (%s) failed: mem alloc overflow\n", FnFilter1(G.filename))); fclose(G.outfile); return; } if ((slnk_entry = (slinkentry *)malloc(slnk_entrysize)) == NULL) { Info(slide, 0x201, ((char *)slide, "warning: symbolic link (%s) failed: no mem\n", FnFilter1(G.filename))); fclose(G.outfile); return; } slnk_entry->next = NULL; slnk_entry->targetlen = ucsize; slnk_entry->attriblen = 0; /* don't set attributes for symlinks */ slnk_entry->target = slnk_entry->buf; slnk_entry->fname = slnk_entry->target + ucsize + 1; strcpy(slnk_entry->fname, G.filename); /* move back to the start of the file to re-read the "link data" */ rewind(G.outfile); if (fread(slnk_entry->target, 1, ucsize, G.outfile) != ucsize) { Info(slide, 0x201, ((char *)slide, "warning: symbolic link (%s) failed\n", FnFilter1(G.filename))); free(slnk_entry); fclose(G.outfile); return; } fclose(G.outfile); /* close "link" file for good... */ slnk_entry->target[ucsize] = '\0'; if (QCOND2) Info(slide, 0, ((char *)slide, "-> %s ", FnFilter1(slnk_entry->target))); /* add this symlink record to the list of deferred symlinks */ if (G.slink_last != NULL) G.slink_last->next = slnk_entry; else G.slink_head = slnk_entry; G.slink_last = slnk_entry; return; } fclose(G.outfile); /*--------------------------------------------------------------------------- Convert from MSDOS-format local time and date to Unix-format 32-bit GMT time: adjust base year from 1980 to 1970, do usual conversions from yy/mm/dd hh:mm:ss to elapsed seconds, and account for timezone and day- light savings time differences. ---------------------------------------------------------------------------*/ /* skip restoring time stamps on user's request */ if (uO.D_flag <= 1) { #ifdef USE_EF_UT_TIME eb_izux_flg = (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, &zt, NULL) : 0); if (eb_izux_flg & EB_UT_FL_MTIME) { tp.modtime = zt.mtime; TTrace((stderr, "\nclose_outfile: Unix e.f. modif. time = %ld\n", tp.modtime)); } else { tp.modtime = dos_to_unix_time(G.lrec.last_mod_dos_datetime); } if (eb_izux_flg & EB_UT_FL_ATIME) { tp.actime = zt.atime; TTrace((stderr, "close_outfile: Unix e.f. access time = %ld\n", tp.actime)); } else { tp.actime = tp.modtime; TTrace((stderr, "\nclose_outfile: modification/access times = %ld\n", tp.modtime)); } #else /* !USE_EF_UT_TIME */ tp.actime = tp.modtime = dos_to_unix_time(G.lrec.last_mod_dos_datetime); TTrace((stderr, "\nclose_outfile: modification/access times = %ld\n", tp.modtime)); #endif /* ?USE_EF_UT_TIME */ /* set the file's access and modification times */ if (utime(G.filename, &tp)) Info(slide, 0x201, ((char *)slide, "warning: cannot set the time for %s\n", FnFilter1(G.filename))); } /*--------------------------------------------------------------------------- Change the file permissions from default ones to those stored in the zipfile. ---------------------------------------------------------------------------*/ #ifndef NO_CHMOD if (chmod(G.filename, 0xffff & G.pInfo->file_attr)) perror("chmod (file attributes) error"); #endif } /* end function close_outfile() */ #ifdef TIMESTAMP /***************************/ /* Function stamp_file() */ /***************************/ int stamp_file(fname, modtime) ZCONST char *fname; time_t modtime; { ztimbuf tp; tp.modtime = tp.actime = modtime; return (utime(fname, &tp)); } /* end function stamp_file() */ #endif /* TIMESTAMP */ #ifndef SFX /************************/ /* Function version() */ /************************/ void version(__G) __GDEF { #ifdef __TURBOC__ char buf[40]; #endif sprintf((char *)slide, LoadFarString(CompiledWith), #ifdef __GNUC__ "gcc ", __VERSION__, #else # if 0 "cc ", (sprintf(buf, " version %d", _RELEASE), buf), # else # ifdef __TURBOC__ "Turbo C", (sprintf(buf, " (0x%04x = %d)", __TURBOC__, __TURBOC__), buf), # else "unknown compiler", "", # endif # endif #endif #ifdef __MINT__ "Atari TOS/MiNT", #else "Atari TOS", #endif " (Atari ST/TT/Falcon030)", #ifdef __DATE__ " on ", __DATE__ #else "", "" #endif ); (*G.message)((zvoid *)&G, slide, (ulg)strlen((char *)slide), 0); } /* end function version() */ #endif /* !SFX */