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unzip-6.0/amiga/amiga.c  view on Meta::CPAN

  ---------------------------------------------------------------------------*/

    if (FUNCTION == APPEND_NAME) {
        Trace((stderr, "appending filename [%s]\n", FnFilter1(pathcomp)));
        while ((*G.build_end = *pathcomp++) != '\0') {
            ++G.build_end;
            if ((G.build_end-G.buildpath) >= FILNAMSIZ) {
                *--G.build_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.
  ---------------------------------------------------------------------------*/

    if (FUNCTION == INIT) {
        Trace((stderr, "initializing buildpath to "));
        if ((G.buildpath = (char *)malloc(strlen(G.filename)+G.rootlen+1))
            == (char *)NULL)
            return MPN_NOMEM;
        if ((G.rootlen > 0) && !G.renamed_fullpath) {
            strcpy(G.buildpath, G.rootpath);
            G.build_end = G.buildpath + G.rootlen;
        } else {
            *G.buildpath = '\0';
            G.build_end = G.buildpath;
        }
        Trace((stderr, "[%s]\n", FnFilter1(G.buildpath)));
        return MPN_OK;
    }

/*---------------------------------------------------------------------------
    ROOT:  if appropriate, store the path in G.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) {
            if (stat(pathcomp, &G.statbuf) || !S_ISDIR(G.statbuf.st_mode)) {
                /* path does not exist */
                if (!G.create_dirs) {
                    G.rootlen = 0;
                    /* skip (or treat as stored file) */
                    return MPN_INF_SKIP;
                }
                /* create the directory (could add loop here scanning pathcomp
                 * to 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",
                      FnFilter1(pathcomp)));
                    G.rootlen = 0;
                    /* path didn't exist, tried to create, and failed: */
                    /* file exists, or 2+ subdir levels required */
                    return MPN_ERR_SKIP;
                }
            }
            if ((G.rootpath = (char *)malloc(G.rootlen+2)) == NULL) {
                G.rootlen = 0;
                return MPN_NOMEM;
            }
            strcpy(G.rootpath, pathcomp);
            if (G.rootpath[G.rootlen-1] != ':' && G.rootpath[G.rootlen-1] != '/')
                G.rootpath[G.rootlen++] = '/';
            G.rootpath[G.rootlen] = '\0';
            Trace((stderr, "rootpath now = [%s]\n", FnFilter1(G.rootpath)));
        }
        return MPN_OK;
    }
#endif /* !SFX || SFX_EXDIR */

/*---------------------------------------------------------------------------
    END:  free G.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() */





/**************************************/
/* Function close_outfile() */
/**************************************/
/* this part differs slightly with Zip */
/*-------------------------------------*/

void close_outfile(__G)