/* Copyright (c) 1990-2002 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 */ /*--------------------------------------------------------------------------- unix.c Unix-specific routines for use with Info-ZIP's UnZip 5.41 and later. Contains: readdir() do_wild() <-- generic enough to put in fileio.c? mapattr() mapname() checkdir() mkdir() close_outfile() set_direc_attribs() stamp_file() version() ---------------------------------------------------------------------------*/ #ifndef _WIN32 #define UNZIP_INTERNAL #include "unzip.h" #ifdef SCO_XENIX # define SYSNDIR #else /* SCO Unix, AIX, DNIX, TI SysV, Coherent 4.x, ... */ # if defined(__convexc__) || defined(SYSV) || defined(CRAY) || defined(BSD4_4) || defined(__HAIKU__) # define DIRENT # endif #endif #if defined(_AIX) || defined(__mpexl) # define DIRENT #endif #ifdef COHERENT # if defined(_I386) || (defined(__COHERENT__) && (__COHERENT__ >= 0x420)) # define DIRENT # endif #endif /* GRR: may need to uncomment this: */ #if 0 #if defined(_POSIX_VERSION) # define DIRENT #endif #endif #ifdef DIRENT # include #else # ifdef SYSV # ifdef SYSNDIR # include # else # include # endif # else /* !SYSV */ # ifndef NO_SYSDIR # include # endif # endif /* ?SYSV */ # ifndef dirent # define dirent direct # endif #endif /* ?DIRENT */ #ifdef ACORN_FTYPE_NFS /* Acorn bits for NFS filetyping */ typedef struct { uch ID[2]; uch size[2]; uch ID_2[4]; uch loadaddr[4]; uch execaddr[4]; uch attr[4]; } RO_extra_block; #endif /* ACORN_FTYPE_NFS */ /* static int created_dir; */ /* used in mapname(), checkdir() */ /* static int renamed_fullpath; */ /* ditto */ #ifndef SFX #ifdef NO_DIR /* for AT&T 3B1 */ #define opendir(path) fopen(path,"r") #define closedir(dir) fclose(dir) typedef FILE DIR; typedef struct zdir { FILE *dirhandle; struct dirent *entry; } DIR DIR *opendir OF((ZCONST char *dirspec)); void closedir OF((DIR *dirp)); struct dirent *readdir OF((DIR *dirp)); DIR *opendir(dirspec) ZCONST char *dirspec; { DIR *dirp; if ((dirp = malloc(sizeof(DIR)) != NULL) { if ((dirp->dirhandle = fopen(dirspec, "r")) == NULL) { free(dirp); dirp = NULL; } } return dirp; } void closedir(dirp) DIR *dirp; { fclose(dirp->dirhandle); free(dirp); } /* * Apparently originally by Rich Salz. * Cleaned up and modified by James W. Birdsall. */ struct dirent *readdir(dirp) DIR *dirp; { if (dirp == NULL) return NULL; for (;;) if (fread(&(dirp->entry), sizeof (struct dirent), 1, dirp->dirhandle) == 0) return (struct dirent *)NULL; else if ((dirp->entry).d_ino) return &(dirp->entry); } /* end function readdir() */ #endif /* NO_DIR */ /**********************/ /* 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 */ { /* these statics are now declared in SYSTEM_SPECIFIC_GLOBALS in unxcfg.h: 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 (!G.notfirstcall) { /* first call: must initialize everything */ G.notfirstcall = TRUE; if (!iswild(wildspec)) { strcpy(G.matchname, wildspec); G.have_dirname = FALSE; G.wild_dir = NULL; return G.matchname; } /* break the wildspec into a directory part and a wildcard filename */ if ((G.wildname = (ZCONST char *)strrchr(wildspec, '/')) == NULL) { G.dirname = "."; G.dirnamelen = 1; G.have_dirname = FALSE; G.wildname = wildspec; } else { ++G.wildname; /* point at character after '/' */ G.dirnamelen = G.wildname - wildspec; if ((G.dirname = (char *)malloc(G.dirnamelen+1)) == (char *)NULL) { Info(slide, 0x201, ((char *)slide, "warning: cannot allocate wildcard buffers\n")); strcpy(G.matchname, wildspec); return G.matchname; /* but maybe filespec was not a wildcard */ } strncpy(G.dirname, wildspec, G.dirnamelen); G.dirname[G.dirnamelen] = '\0'; /* terminate for strcpy below */ G.have_dirname = TRUE; } if ((G.wild_dir = (zvoid *)opendir(G.dirname)) != (zvoid *)NULL) { while ((file = readdir((DIR *)G.wild_dir)) != (struct dirent *)NULL) { Trace((stderr, "do_wild: readdir returns %s\n", FnFilter1(file->d_name))); if (file->d_name[0] == '.' && G.wildname[0] != '.') continue; /* Unix: '*' and '?' do not match leading dot */ if (match(file->d_name, G.wildname, 0) && /* 0 == case sens. */ /* skip "." and ".." directory entries */ strcmp(file->d_name, ".") && strcmp(file->d_name, "..")) { Trace((stderr, "do_wild: match() succeeds\n")); if (G.have_dirname) { strcpy(G.matchname, G.dirname); strcpy(G.matchname+G.dirnamelen, file->d_name); } else strcpy(G.matchname, file->d_name); return G.matchname; } } /* if we get to here directory is exhausted, so close it */ closedir((DIR *)G.wild_dir); G.wild_dir = (zvoid *)NULL; } Trace((stderr, "do_wild: opendir(%s) returns NULL\n", FnFilter1(G.dirname))); /* return the raw wildspec in case that works (e.g., directory not * searchable, but filespec was not wild and file is readable) */ strcpy(G.matchname, wildspec); return G.matchname; } /* last time through, might have failed opendir but returned raw wildspec */ if ((DIR *)G.wild_dir == (DIR *)NULL) { G.notfirstcall = FALSE; /* nothing left--reset for new wildspec */ if (G.have_dirname) free(G.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 *)G.wild_dir)) != (struct dirent *)NULL) { Trace((stderr, "do_wild: readdir returns %s\n", FnFilter1(file->d_name))); if (file->d_name[0] == '.' && G.wildname[0] != '.') continue; /* Unix: '*' and '?' do not match leading dot */ if (match(file->d_name, G.wildname, 0)) { /* 0 == don't ignore case */ Trace((stderr, "do_wild: match() succeeds\n")); if (G.have_dirname) { /* strcpy(G.matchname, G.dirname); */ strcpy(G.matchname+G.dirnamelen, file->d_name); } else strcpy(G.matchname, file->d_name); return G.matchname; } } closedir((DIR *)G.wild_dir); /* at least one entry read; nothing left */ G.wild_dir = (zvoid *)NULL; G.notfirstcall = FALSE; /* reset for new wildspec */ if (G.have_dirname) free(G.dirname); return (char *)NULL; } /* end function do_wild() */ #endif /* !SFX */ /**********************/ /* Function mapattr() */ /**********************/ int mapattr(__G) __GDEF { 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 BEOS_: case QDOS_: case TANDEM_: G.pInfo->file_attr = (unsigned)(tmp >> 16); if (G.pInfo->file_attr != 0 || !G.extra_field) { return 0; } else { /* 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 from 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; int r = FALSE; 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) 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! */ 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 quote = FALSE; /* flags */ 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 in Unix */ /* can create path as long as not just freshening, or if user told us */ G.create_dirs = (!uO.fflag || renamed); G.created_dir = FALSE; /* not yet */ /* user gave full pathname: don't prepend rootpath */ G.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) { 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)) & MPN_MASK) > MPN_INF_TRUNC) return error; pp = pathcomp; /* reset conversion buffer for next piece */ lastsemi = (char *)NULL; /* leave directory semi-colons alone */ break; case '.': if (pp == pathcomp) { /* nothing appended yet... */ if (*cp == '/') { /* don't bother appending "./" to */ ++cp; /* the path: skip behind the '/' */ break; } else if (!uO.ddotflag && *cp == '.' && cp[1] == '/') { /* "../" dir traversal detected */ cp += 2; /* skip over behind the '/' */ killed_ddot = TRUE; /* set "show message" flag */ break; } } *pp++ = '.'; 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 case '\026': /* control-V quote for special chars */ quote = TRUE; /* set flag for next character */ break; #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 (G.created_dir) { if (QCOND2) { Info(slide, 0, ((char *)slide, " creating: %s\n", FnFilter1(G.filename))); } #ifndef NO_CHMOD /* set approx. dir perms (make sure can still read/write in dir) */ if (chmod(G.filename, (0xffff & G.pInfo->file_attr) | 0700)) perror("chmod (directory attributes) error"); #endif /* 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'; } #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; #ifdef SHORT_NAMES char *old_end = end; #endif Trace((stderr, "appending dir segment [%s]\n", FnFilter1(pathcomp))); while ((*G.end = *pathcomp++) != '\0') ++G.end; #ifdef SHORT_NAMES /* path components restricted to 14 chars, typically */ if ((G.end-old_end) > FILENAME_MAX) /* GRR: proper constant? */ *(G.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. */ /* next check: need to append '/', at least one-char name, '\0' */ if ((G.end-G.buildpath) > FILNAMSIZ-3) too_long = TRUE; /* check if extracting dir? */ if (SSTAT(G.buildpath, &G.statbuf)) { /* path doesn't exist */ if (!G.create_dirs) { /* told not to create (freshening) */ free(G.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(G.buildpath))); free(G.buildpath); /* no room for filenames: fatal */ return MPN_ERR_TOOLONG; } if (mkdir(G.buildpath, 0777) == -1) { /* create the directory */ Info(slide, 1, ((char *)slide, "checkdir error: cannot create %s\n\ unable to process %s.\n", FnFilter2(G.buildpath), FnFilter1(G.filename))); free(G.buildpath); /* path didn't exist, tried to create, failed */ return MPN_ERR_SKIP; } G.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(G.buildpath), FnFilter1(G.filename))); free(G.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(G.buildpath))); free(G.buildpath); /* no room for filenames: fatal */ return MPN_ERR_TOOLONG; } *G.end++ = '/'; *G.end = '\0'; Trace((stderr, "buildpath now = [%s]\n", FnFilter1(G.buildpath))); return MPN_OK; } /* end if (FUNCTION == APPEND_DIR) */ /*--------------------------------------------------------------------------- GETPATH: copy full path to the string pointed at by pathcomp, and free G.buildpath. ---------------------------------------------------------------------------*/ if (FUNCTION == GETPATH) { strcpy(pathcomp, G.buildpath); Trace((stderr, "getting and freeing path [%s]\n", FnFilter1(pathcomp))); free(G.buildpath); G.buildpath = G.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) { #ifdef SHORT_NAMES char *old_end = end; #endif Trace((stderr, "appending filename [%s]\n", FnFilter1(pathcomp))); while ((*G.end = *pathcomp++) != '\0') { ++G.end; #ifdef SHORT_NAMES /* truncate name at 14 characters, typically */ if ((G.end-old_end) > FILENAME_MAX) /* GRR: proper constant? */ *(G.end = old_end + FILENAME_MAX) = '\0'; #endif if ((G.end-G.buildpath) >= FILNAMSIZ) { *--G.end = '\0'; Info(slide, 0x201, ((char *)slide, "checkdir warning: path too long; truncating\n\ %s\n -> %s\n", FnFilter1(G.filename), FnFilter2(G.buildpath))); return MPN_INF_TRUNC; /* filename truncated */ } } Trace((stderr, "buildpath now = [%s]\n", FnFilter1(G.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 ((G.buildpath = (char *)malloc(strlen(G.filename)+G.rootlen+ (uO.acorn_nfs_ext ? 5 : 1))) #else if ((G.buildpath = (char *)malloc(strlen(G.filename)+G.rootlen+1)) #endif == (char *)NULL) return MPN_NOMEM; if ((G.rootlen > 0) && !G.renamed_fullpath) { strcpy(G.buildpath, G.rootpath); G.end = G.buildpath + G.rootlen; } else { *G.buildpath = '\0'; G.end = G.buildpath; } Trace((stderr, "[%s]\n", FnFilter1(G.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", FnFilter1(pathcomp))); if (pathcomp == (char *)NULL) { G.rootlen = 0; return MPN_OK; } if (G.rootlen > 0) /* rootpath was already set, nothing to do */ return MPN_OK; if ((G.rootlen = strlen(pathcomp)) > 0) { char *tmproot; if ((tmproot = (char *)malloc(G.rootlen+2)) == (char *)NULL) { G.rootlen = 0; return MPN_NOMEM; } strcpy(tmproot, pathcomp); if (tmproot[G.rootlen-1] == '/') { tmproot[--G.rootlen] = '\0'; } if (G.rootlen > 0 && (SSTAT(tmproot, &G.statbuf) || !S_ISDIR(G.statbuf.st_mode))) { /* path does not exist */ if (!G.create_dirs /* || iswild(tmproot) */ ) { free(tmproot); G.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); G.rootlen = 0; /* path didn't exist, tried to create, and failed: */ /* file exists, or 2+ subdir levels required */ return MPN_ERR_SKIP; } } tmproot[G.rootlen++] = '/'; tmproot[G.rootlen] = '\0'; if ((G.rootpath = (char *)realloc(tmproot, G.rootlen+1)) == NULL) { free(tmproot); G.rootlen = 0; return MPN_NOMEM; } Trace((stderr, "rootpath now = [%s]\n", FnFilter1(G.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 (G.rootlen > 0) { free(G.rootpath); G.rootlen = 0; } return MPN_OK; } return MPN_INVALID; /* should never reach */ } /* end function checkdir() */ #ifdef NO_MKDIR /********************/ /* Function mkdir() */ /********************/ int mkdir(path, mode) ZCONST char *path; int mode; /* ignored */ /* * returns: 0 - successful * -1 - failed (errno not set, however) */ { char command[FILNAMSIZ+40]; /* buffer for system() call */ /* GRR 930416: added single quotes around path to avoid bug with * creating directories with ampersands in name; not yet tested */ sprintf(command, "IFS=\" \t\n\" /bin/mkdir '%s' 2>/dev/null", path); if (system(command)) return -1; return 0; } #endif /* NO_MKDIR */ #ifndef MTS /****************************/ /* Function close_outfile() */ /****************************/ void close_outfile(__G) /* GRR: change to return PK-style warning level */ __GDEF { iztimes zt; ush z_uidgid[2]; unsigned eb_izux_flg; /*--------------------------------------------------------------------------- If symbolic links are supported, allocate a storage area, put the uncom- pressed "data" in it, and create the link. Since we know it's a symbolic link to start with, we shouldn't have to worry about overflowing unsigned ints with unsigned longs. ---------------------------------------------------------------------------*/ #ifdef SYMLINKS if (G.symlnk) { unsigned ucsize = (unsigned)G.lrec.ucsize; char *linktarget = (char *)malloc((unsigned)G.lrec.ucsize+1); fclose(G.outfile); /* close "data" file... */ G.outfile = fopen(G.filename, FOPR); /* ...and reopen for reading */ if (!linktarget || fread(linktarget, 1, ucsize, G.outfile) != (int)ucsize) { Info(slide, 0x201, ((char *)slide, "warning: symbolic link (%s) failed\n", FnFilter1(G.filename))); if (linktarget) free(linktarget); fclose(G.outfile); return; } fclose(G.outfile); /* close "data" file for good... */ unlink(G.filename); /* ...and delete it */ linktarget[ucsize] = '\0'; if (QCOND2) Info(slide, 0, ((char *)slide, "-> %s ", FnFilter1(linktarget))); if (symlink(linktarget, G.filename)) /* create the real link */ perror("symlink error"); free(linktarget); return; /* can't set time on symlinks */ } #endif /* SYMLINKS */ fclose(G.outfile); #ifdef QLZIP if (G.extra_field) { static void qlfix OF((__GPRO__ uch *ef_ptr, unsigned ef_len)); qlfix(__G__ G.extra_field, G.lrec.extra_field_length); } #endif /*--------------------------------------------------------------------------- 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. If we have a Unix extra field, however, we're laughing: both mtime and atime are ours. On the other hand, we then have to check for restoration of UID/GID. ---------------------------------------------------------------------------*/ eb_izux_flg = (G.extra_field ? ef_scan_for_izux(G.extra_field, G.lrec.extra_field_length, 0, G.lrec.last_mod_dos_datetime, #ifdef IZ_CHECK_TZ (G.tz_is_valid ? &zt : NULL), #else &zt, #endif z_uidgid) : 0); if (eb_izux_flg & EB_UT_FL_MTIME) { TTrace((stderr, "\nclose_outfile: Unix e.f. modif. time = %ld\n", zt.mtime)); } else { zt.mtime = dos_to_unix_time(G.lrec.last_mod_dos_datetime); } if (eb_izux_flg & EB_UT_FL_ATIME) { TTrace((stderr, "close_outfile: Unix e.f. access time = %ld\n", zt.atime)); } else { zt.atime = zt.mtime; TTrace((stderr, "\nclose_outfile: modification/access times = %ld\n", zt.mtime)); } /* if -X option was specified and we have UID/GID info, restore it */ if (uO.X_flag && eb_izux_flg & EB_UX2_VALID) { TTrace((stderr, "close_outfile: restoring Unix UID/GID info\n")); if (chown(G.filename, (uid_t)z_uidgid[0], (gid_t)z_uidgid[1])) { if (uO.qflag) Info(slide, 0x201, ((char *)slide, "warning: cannot set UID %d and/or GID %d for %s\n", z_uidgid[0], z_uidgid[1], FnFilter1(G.filename))); else Info(slide, 0x201, ((char *)slide, " (warning) cannot set UID %d and/or GID %d", z_uidgid[0], z_uidgid[1])); } } /* set the file's access and modification times */ if (utime(G.filename, (ztimbuf *)&zt)) { #ifdef AOS_VS if (uO.qflag) Info(slide, 0x201, ((char *)slide, "... cannot set time for %s\n", FnFilter1(G.filename))); else Info(slide, 0x201, ((char *)slide, "... cannot set time")); #else if (uO.qflag) Info(slide, 0x201, ((char *)slide, "warning: cannot set times for %s\n", FnFilter1(G.filename))); else Info(slide, 0x201, ((char *)slide, " (warning) cannot set times")); #endif /* ?AOS_VS */ } /*--------------------------------------------------------------------------- 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() */ #endif /* !MTS */ #ifdef SET_DIR_ATTRIB /* messages of code for setting directory attributes */ static ZCONST char Far DirlistUidGidFailed[] = "warning: cannot set UID %d and/or GID %d for %s\n"; static ZCONST char Far DirlistUtimeFailed[] = "warning: cannot set modification, access times for %s\n"; # ifndef NO_CHMOD static ZCONST char Far DirlistChmodFailed[] = "warning: cannot set permissions for %s\n"; # endif int set_direc_attribs(__G__ d) __GDEF dirtime *d; { int errval = PK_OK; if (d->have_uidgid && chown(d->fn, (uid_t)d->uidgid[0], (gid_t)d->uidgid[1])) { Info(slide, 0x201, ((char *)slide, LoadFarString(DirlistUidGidFailed), d->uidgid[0], d->uidgid[1], FnFilter1(d->fn))); if (!errval) errval = PK_WARN; } if (utime(d->fn, &d->u.t2)) { Info(slide, 0x201, ((char *)slide, LoadFarString(DirlistUtimeFailed), FnFilter1(d->fn))); if (!errval) errval = PK_WARN; } #ifndef NO_CHMOD if (chmod(d->fn, 0xffff & d->perms)) { Info(slide, 0x201, ((char *)slide, LoadFarString(DirlistChmodFailed), FnFilter1(d->fn))); /* perror("chmod (file attributes) error"); */ if (!errval) errval = PK_WARN; } #endif /* !NO_CHMOD */ return errval; } /* end function set_directory_attributes() */ #endif /* SET_DIR_ATTRIB */ #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 { #if (defined(__GNUC__) && defined(NX_CURRENT_COMPILER_RELEASE)) char cc_namebuf[40]; char cc_versbuf[40]; #else #if (defined(CRAY) && defined(_RELEASE)) char cc_versbuf[40]; #endif #endif #if ((defined(CRAY) || defined(cray)) && defined(_UNICOS)) char os_namebuf[40]; #else #if defined(__NetBSD__) char os_namebuf[40]; #endif #endif /* Pyramid, NeXT have problems with huge macro expansion, too: no Info() */ sprintf((char *)slide, LoadFarString(CompiledWith), #ifdef __GNUC__ # ifdef NX_CURRENT_COMPILER_RELEASE (sprintf(cc_namebuf, "NeXT DevKit %d.%02d ", NX_CURRENT_COMPILER_RELEASE/100, NX_CURRENT_COMPILER_RELEASE%100), cc_namebuf), (strlen(__VERSION__) > 8)? "(gcc)" : (sprintf(cc_versbuf, "(gcc %s)", __VERSION__), cc_versbuf), # else "gcc ", __VERSION__, # endif #else # if defined(CRAY) && defined(_RELEASE) "cc ", (sprintf(cc_versbuf, "version %d", _RELEASE), cc_versbuf), # else # ifdef __VERSION__ # ifndef IZ_CC_NAME # define IZ_CC_NAME "cc " # endif IZ_CC_NAME, __VERSION__ # else # ifndef IZ_CC_NAME # define IZ_CC_NAME "cc" # endif IZ_CC_NAME, "", # endif # endif #endif /* ?__GNUC__ */ #ifndef IZ_OS_NAME # define IZ_OS_NAME "Unix" #endif IZ_OS_NAME, #if defined(sgi) || defined(__sgi) " (Silicon Graphics IRIX)", #else #ifdef sun # ifdef sparc # ifdef __SVR4 " (Sun SPARC/Solaris)", # else /* may or may not be SunOS */ " (Sun SPARC)", # endif # else # if defined(sun386) || defined(i386) " (Sun 386i)", # else # if defined(mc68020) || defined(__mc68020__) " (Sun 3)", # else /* mc68010 or mc68000: Sun 2 or earlier */ " (Sun 2)", # endif # endif # endif #else #ifdef __hpux " (HP/UX)", #else #ifdef __osf__ " (DEC OSF/1)", #else #ifdef _AIX " (IBM AIX)", #else #ifdef aiws " (IBM RT/AIX)", #else #if defined(CRAY) || defined(cray) # ifdef _UNICOS (sprintf(os_namebuf, " (Cray UNICOS release %d)", _UNICOS), os_namebuf), # else " (Cray UNICOS)", # endif #else #if defined(uts) || defined(UTS) " (Amdahl UTS)", #else #ifdef NeXT # ifdef mc68000 " (NeXTStep/black)", # else " (NeXTStep for Intel)", # endif #else /* the next dozen or so are somewhat order-dependent */ #ifdef LINUX # ifdef __ELF__ " (Linux ELF)", # else " (Linux a.out)", # endif #else #ifdef MINIX " (Minix)", #else #ifdef M_UNIX " (SCO Unix)", #else #ifdef M_XENIX " (SCO Xenix)", #else #ifdef __NetBSD__ # ifdef NetBSD0_8 (sprintf(os_namebuf, " (NetBSD 0.8%c)", (char)(NetBSD0_8 - 1 + 'A')), os_namebuf), # else # ifdef NetBSD0_9 (sprintf(os_namebuf, " (NetBSD 0.9%c)", (char)(NetBSD0_9 - 1 + 'A')), os_namebuf), # else # ifdef NetBSD1_0 (sprintf(os_namebuf, " (NetBSD 1.0%c)", (char)(NetBSD1_0 - 1 + 'A')), os_namebuf), # else (BSD4_4 == 0.5)? " (NetBSD before 0.9)" : " (NetBSD 1.1 or later)", # endif # endif # endif #else #ifdef __FreeBSD__ (BSD4_4 == 0.5)? " (FreeBSD 1.x)" : " (FreeBSD 2.0 or later)", #else #ifdef __bsdi__ (BSD4_4 == 0.5)? " (BSD/386 1.0)" : " (BSD/386 1.1 or later)", #else #ifdef __386BSD__ (BSD4_4 == 1)? " (386BSD, post-4.4 release)" : " (386BSD)", #else #if defined(i486) || defined(__i486) || defined(__i486__) " (Intel 486)", #else #if defined(i386) || defined(__i386) || defined(__i386__) " (Intel 386)", #else #ifdef pyr " (Pyramid)", #else #ifdef ultrix # ifdef mips " (DEC/MIPS)", # else # ifdef vax " (DEC/VAX)", # else /* __alpha? */ " (DEC/Alpha)", # endif # endif #else #ifdef gould " (Gould)", #else #ifdef MTS " (MTS)", #else #ifdef __convexc__ " (Convex)", #else #ifdef __QNX__ " (QNX 4)", #else #ifdef __QNXNTO__ " (QNX Neutrino)", #else #ifdef Lynx " (LynxOS)", #else "", #endif /* Lynx */ #endif /* QNX Neutrino */ #endif /* QNX 4 */ #endif /* Convex */ #endif /* MTS */ #endif /* Gould */ #endif /* DEC */ #endif /* Pyramid */ #endif /* 386 */ #endif /* 486 */ #endif /* 386BSD */ #endif /* BSDI BSD/386 */ #endif /* NetBSD */ #endif /* FreeBSD */ #endif /* SCO Xenix */ #endif /* SCO Unix */ #endif /* Minix */ #endif /* Linux */ #endif /* NeXT */ #endif /* Amdahl */ #endif /* Cray */ #endif /* RT/AIX */ #endif /* AIX */ #endif /* OSF/1 */ #endif /* HP/UX */ #endif /* Sun */ #endif /* SGI */ #ifdef __DATE__ " on ", __DATE__ #else "", "" #endif ); (*G.message)((zvoid *)&G, slide, (ulg)strlen((char *)slide), 0); } /* end function version() */ #endif /* !SFX */ #ifdef QLZIP struct qdirect { long d_length __attribute__ ((packed)); /* file length */ unsigned char d_access __attribute__ ((packed)); /* file access type */ unsigned char d_type __attribute__ ((packed)); /* file type */ long d_datalen __attribute__ ((packed)); /* data length */ long d_reserved __attribute__ ((packed));/* Unused */ short d_szname __attribute__ ((packed)); /* size of name */ char d_name[36] __attribute__ ((packed));/* name area */ long d_update __attribute__ ((packed)); /* last update */ long d_refdate __attribute__ ((packed)); long d_backup __attribute__ ((packed)); /* EOD */ }; #define LONGID "QDOS02" #define EXTRALEN (sizeof(struct qdirect) + 8) #define JBLONGID "QZHD" #define JBEXTRALEN (sizeof(jbextra) - 4 * sizeof(char)) typedef struct { char eb_header[4] __attribute__ ((packed)); /* place_holder */ char longid[8] __attribute__ ((packed)); struct qdirect header __attribute__ ((packed)); } qdosextra; typedef struct { char eb_header[4]; /* place_holder */ char longid[4]; struct qdirect header; } jbextra; /* The following two functions SH() and LG() convert big-endian short * and long numbers into native byte order. They are some kind of * counterpart to the generic UnZip's makeword() and makelong() functions. */ static ush SH(ush val) { uch swapbuf[2]; swapbuf[1] = (uch)(val & 0xff); swapbuf[0] = (uch)(val >> 8); return (*(ush *)swapbuf); } static ulg LG(ulg val) { /* convert the big-endian unsigned long number `val' to the machine * dependant representation */ ush swapbuf[2]; swapbuf[1] = SH((ush)(val & 0xffff)); swapbuf[0] = SH((ush)(val >> 16)); return (*(ulg *)swapbuf); } static void qlfix(__G__ ef_ptr, ef_len) __GDEF uch *ef_ptr; unsigned ef_len; { while (ef_len >= EB_HEADSIZE) { unsigned eb_id = makeword(EB_ID + ef_ptr); unsigned eb_len = makeword(EB_LEN + ef_ptr); if (eb_len > (ef_len - EB_HEADSIZE)) { /* discovered some extra field inconsistency! */ Trace((stderr, "qlfix: block length %u > rest ef_size %u\n", eb_len, ef_len - EB_HEADSIZE)); break; } switch (eb_id) { case EF_QDOS: { struct _ntc_ { long id; long dlen; } ntc; long dlen = 0; qdosextra *extra = (qdosextra *)ef_ptr; jbextra *jbp = (jbextra *)ef_ptr; if (!strncmp(extra->longid, LONGID, strlen(LONGID))) { if (eb_len != EXTRALEN) if (uO.qflag) Info(slide, 0x201, ((char *)slide, "warning: invalid length in Qdos field for %s\n", FnFilter1(G.filename))); else Info(slide, 0x201, ((char *)slide, "warning: invalid length in Qdos field")); if (extra->header.d_type) { dlen = extra->header.d_datalen; } } if (!strncmp(jbp->longid, JBLONGID, strlen(JBLONGID))) { if (eb_len != JBEXTRALEN) if (uO.qflag) Info(slide, 0x201, ((char *)slide, "warning: invalid length in QZ field for %s\n", FnFilter1(G.filename))); else Info(slide, 0x201, ((char *)slide, "warning: invalid length in QZ field")); if(jbp->header.d_type) { dlen = jbp->header.d_datalen; } } if ((long)LG(dlen) > 0) { G.outfile = fopen(G.filename,"r+"); fseek(G.outfile, -8, SEEK_END); fread(&ntc, 8, 1, G.outfile); if(ntc.id != *(long *)"XTcc") { ntc.id = *(long *)"XTcc"; ntc.dlen = dlen; fwrite (&ntc, 8, 1, G.outfile); } Info(slide, 0x201, ((char *)slide, "QData = %d", LG(dlen))); fclose(G.outfile); } return; /* finished, cancel further extra field scanning */ } default: Trace((stderr,"qlfix: unknown extra field block, ID=%d\n", eb_id)); } /* Skip this extra field block */ ef_ptr += (eb_len + EB_HEADSIZE); ef_len -= (eb_len + EB_HEADSIZE); } } #endif /* QLZIP */ #endif const char *BOINC_RCSID_a72f75a0d4 = "$Id: unix.c 18213 2009-05-27 23:36:55Z davea $";