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Annotation of coherent/g/usr/lib/uucp/tay104/unix/locfil.c, revision 1.1.1.1

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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