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Annotation of coherent/g/usr/lib/uucp/tay104/unix/locfil.c, revision 1.1

1.1     ! root        1: /* locfil.c
        !             2:    Expand a file name on the local system.
        !             3: 
        !             4:    Copyright (C) 1991, 1992 Ian Lance Taylor
        !             5: 
        !             6:    This file is part of the Taylor UUCP package.
        !             7: 
        !             8:    This program is free software; you can redistribute it and/or
        !             9:    modify it under the terms of the GNU General Public License as
        !            10:    published by the Free Software Foundation; either version 2 of the
        !            11:    License, or (at your option) any later version.
        !            12: 
        !            13:    This program is distributed in the hope that it will be useful, but
        !            14:    WITHOUT ANY WARRANTY; without even the implied warranty of
        !            15:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
        !            16:    General Public License for more details.
        !            17: 
        !            18:    You should have received a copy of the GNU General Public License
        !            19:    along with this program; if not, write to the Free Software
        !            20:    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
        !            21: 
        !            22:    The author of the program may be contacted at [email protected] or
        !            23:    c/o Infinity Development Systems, P.O. Box 520, Waltham, MA 02254.
        !            24:    */
        !            25: 
        !            26: #include "uucp.h"
        !            27: 
        !            28: #include "uudefs.h"
        !            29: #include "sysdep.h"
        !            30: #include "system.h"
        !            31: 
        !            32: #include <pwd.h>
        !            33: 
        !            34: #if GETPWNAM_DECLARATION_OK
        !            35: #ifndef getpwnam
        !            36: extern struct passwd *getpwnam ();
        !            37: #endif
        !            38: #endif
        !            39: 
        !            40: /* Turn a file name into an absolute path, by doing tilde expansion
        !            41:    and moving any other type of file into the public directory.  */
        !            42: 
        !            43: char *
        !            44: zsysdep_local_file (zfile, zpubdir)
        !            45:      const char *zfile;
        !            46:      const char *zpubdir;
        !            47: {
        !            48:   const char *zdir;
        !            49: 
        !            50:   if (*zfile == '/')
        !            51:     return zbufcpy (zfile);
        !            52: 
        !            53:   if (*zfile != '~')
        !            54:     zdir = zpubdir;
        !            55:   else
        !            56:     {
        !            57:       if (zfile[1] == '\0')
        !            58:        return zbufcpy (zpubdir);
        !            59: 
        !            60:       if (zfile[1] == '/')
        !            61:        {
        !            62:          zdir = zpubdir;
        !            63:          zfile += 2;
        !            64:        }
        !            65:       else
        !            66:        {
        !            67:          size_t cuserlen;
        !            68:          char *zcopy;
        !            69:          struct passwd *q;
        !            70: 
        !            71:          ++zfile;
        !            72:          cuserlen = strcspn ((char *) zfile, "/");
        !            73:          zcopy = zbufalc (cuserlen + 1);
        !            74:          memcpy (zcopy, zfile, cuserlen);
        !            75:          zcopy[cuserlen] = '\0';
        !            76:       
        !            77:          q = getpwnam (zcopy);
        !            78:          if (q == NULL)
        !            79:            {
        !            80:              ulog (LOG_ERROR, "User %s not found", zcopy);
        !            81:              ubuffree (zcopy);
        !            82:              return NULL;
        !            83:            }
        !            84:          ubuffree (zcopy);
        !            85: 
        !            86:          if (zfile[cuserlen] == '\0')
        !            87:            return zbufcpy (q->pw_dir);
        !            88: 
        !            89:          zdir = q->pw_dir;
        !            90:          zfile += cuserlen + 1;
        !            91:        }
        !            92:     }
        !            93: 
        !            94:   return zsysdep_in_dir (zdir, zfile);
        !            95: }

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