Annotation of GNUtools/libg++/libio/pfstream.cc, revision 1.1

1.1     ! root        1: /* This is part of libio/iostream, providing -*- C++ -*- input/output.
        !             2: Copyright (C) 1993 Free Software Foundation
        !             3: 
        !             4: This file is part of the GNU IO Library.  This library is free
        !             5: software; you can redistribute it and/or modify it under the
        !             6: terms of the GNU General Public License as published by the
        !             7: Free Software Foundation; either version 2, or (at your option)
        !             8: any later version.
        !             9: 
        !            10: This library is distributed in the hope that it will be useful,
        !            11: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            12: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            13: GNU General Public License for more details.
        !            14: 
        !            15: You should have received a copy of the GNU General Public License
        !            16: along with GNU CC; see the file COPYING.  If not, write to
        !            17: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
        !            18: 
        !            19: As a special exception, if you link this library with files
        !            20: compiled with a GNU compiler to produce an executable, this does not cause
        !            21: the resulting executable to be covered by the GNU General Public License.
        !            22: This exception does not however invalidate any other reasons why
        !            23: the executable file might be covered by the GNU General Public License. */
        !            24: 
        !            25: /* Written by Per Bothner ([email protected]). */
        !            26: 
        !            27: #ifdef __GNUG__
        !            28: #pragma implementation
        !            29: #endif
        !            30: #include "libioP.h"
        !            31: #include <pfstream.h>
        !            32: #include <procbuf.h>
        !            33: 
        !            34: ipfstream::ipfstream(const char *name, int mode, int prot)
        !            35: {
        !            36:     const char* p;
        !            37: 
        !            38:     // Look for '| command' (as used by ftp).
        !            39:     for (p = name; *p == ' ' || *p == '\t'; p++) ;
        !            40:     if (*p == '|') {
        !            41:        procbuf *pbuf = new procbuf();
        !            42:        init(pbuf);
        !            43:        if (pbuf->open(p+1, mode))
        !            44:            set(ios::badbit);
        !            45:        return;
        !            46:     }
        !            47: 
        !            48:     // Look for 'command |'
        !            49:     while (*p) p++; // Point to last 
        !            50:     while (p[-1] == ' ' || p[-1] == '\t' || p[-1] == '\n') p--;
        !            51:     if (p[-1] == '|') {
        !            52:        // Must remove the final '|'.
        !            53:        p--;
        !            54: #ifdef __GNUC__
        !            55:        char command[p-name+1];
        !            56: #else
        !            57:        char *command = new char[p-name+1];
        !            58: #endif
        !            59:         memcpy(command, name, p-name);
        !            60:        command[p-name] = '\0';
        !            61: 
        !            62:        procbuf *pbuf = new procbuf();
        !            63:        if (pbuf->open(command, mode))
        !            64:            set(ios::badbit);
        !            65: #ifndef __GNUC__
        !            66:        delete command;
        !            67: #endif
        !            68:        return;
        !            69:     }
        !            70: 
        !            71:     init(new filebuf());
        !            72:     if (!rdbuf()->open(name, mode, prot))
        !            73:        set(ios::badbit);
        !            74: }
        !            75: 
        !            76: opfstream::opfstream(const char *name, int mode, int prot)
        !            77: {
        !            78:     const char *p;
        !            79:     // Look for '| command'.
        !            80:     for (p = name; *p == ' ' || *p == '\t'; p++) ;
        !            81:     if (*p == '|') {
        !            82:        procbuf *pbuf = new procbuf();
        !            83:        init(pbuf);
        !            84:        if (pbuf->open(p+1, mode))
        !            85:            set(ios::badbit);
        !            86:     }
        !            87:     else {
        !            88:        init(new filebuf());
        !            89:        if (!rdbuf()->open(name, mode, prot))
        !            90:            set(ios::badbit);
        !            91:     }
        !            92: }

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