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/* $Source: /u/mark/src/pax/RCS/port.c,v $
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*
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* $Revision: 1.2 $
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*
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* port.c - These are routines not available in all environments.
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*
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* DESCRIPTION
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*
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* The routines contained in this file are provided for portability to
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* other versions of UNIX or other operating systems (e.g. MSDOS).
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* Not all systems have the same functions or the same semantics,
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* these routines attempt to bridge the gap as much as possible.
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*
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* AUTHOR
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*
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* Mark H. Colburn, NAPS International (mark@jhereg.mn.org)
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* John Gilmore (gnu@hoptoad)
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*
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* Sponsored by The USENIX Association for public distribution.
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*
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* Copyright (c) 1989 Mark H. Colburn.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice is duplicated in all such
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* forms and that any documentation, advertising materials, and other
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* materials related to such distribution and use acknowledge that the
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* software was developed * by Mark H. Colburn and sponsored by The
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* USENIX Association.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $Log: port.c,v $
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* Revision 1.2 89/02/12 10:05:35 mark
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* 1.2 release fixes
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*
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* Revision 1.1 88/12/23 18:02:29 mark
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* Initial revision
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*
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*/
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#ifndef lint
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static char *ident = "$Id: port.c,v 1.2 89/02/12 10:05:35 mark Exp $";
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static char *copyright = "Copyright (c) 1989 Mark H. Colburn.\nAll rights reserved.\n";
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#endif /* ! lint */
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/* Headers */
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#include "pax.h"
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/*
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* Some computers are not so crass as to align themselves into the BSD or USG
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* camps. If a system supplies all of the routines we fake here, add it to
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* the list in the #if !defined()'s below and it'll all be skipped.
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*/
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#if !defined(mc300) && !defined(mc500) && !defined(mc700) && !defined(BSD) && !defined(_POSIX_SOURCE)
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/* mkdir - make a directory
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*
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* DESCRIPTION
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*
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* Mkdir will make a directory of the name "dpath" with a mode of
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* "dmode". This is consistent with the BSD mkdir() function and the
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* P1003.1 definitions of MKDIR.
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*
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* PARAMETERS
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*
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* dpath - name of directory to create
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* dmode - mode of the directory
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*
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* RETURNS
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*
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* Returns 0 if the directory was successfully created, otherwise a
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* non-zero return value will be passed back to the calling function
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* and the value of errno should reflect the error.
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*/
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#ifdef __STDC__
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int mkdir(char *dpath, int dmode)
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#else
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int mkdir(dpath, dmode)
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char *dpath;
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int dmode;
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#endif
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{
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int cpid, status;
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Stat statbuf;
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extern int errno;
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if (STAT(dpath, &statbuf) == 0) {
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errno = EEXIST; /* Stat worked, so it already exists */
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return (-1);
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}
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/* If stat fails for a reason other than non-existence, return error */
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if (errno != ENOENT)
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return (-1);
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switch (cpid = fork()) {
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case -1: /* Error in fork() */
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return (-1); /* Errno is set already */
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case 0: /* Child process */
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status = umask(0); /* Get current umask */
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status = umask(status | (0777 & ~dmode)); /* Set for mkdir */
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execl("/bin/mkdir", "mkdir", dpath, (char *) 0);
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_exit(-1); /* Can't exec /bin/mkdir */
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default: /* Parent process */
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while (cpid != wait(&status)) {
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/* Wait for child to finish */
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}
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}
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if (TERM_SIGNAL(status) != 0 || TERM_VALUE(status) != 0) {
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errno = EIO; /* We don't know why, but */
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return (-1); /* /bin/mkdir failed */
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}
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return (0);
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}
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/* rmdir - remove a directory
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*
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* DESCRIPTION
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*
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* Rmdir will remove the directory specified by "dpath". It is
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* consistent with the BSD and POSIX rmdir functions.
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*
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* PARAMETERS
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*
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* dpath - name of directory to remove
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*
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* RETURNS
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*
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* Returns 0 if the directory was successfully deleted, otherwise a
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* non-zero return value will be passed back to the calling function
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* and the value of errno should reflect the error.
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*/
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#ifdef __STDC__
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int rmdir(char *dpath)
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#else
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int rmdir(dpath)
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char *dpath;
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#endif
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{
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int cpid, status;
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Stat statbuf;
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extern int errno;
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/* check to see if it exists */
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if (STAT(dpath, &statbuf) == -1) {
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return (-1);
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}
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switch (cpid = fork()) {
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case -1: /* Error in fork() */
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return (-1); /* Errno is set already */
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case 0: /* Child process */
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execl("/bin/rmdir", "rmdir", dpath, (char *) 0);
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_exit(-1); /* Can't exec /bin/rmdir */
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default: /* Parent process */
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while (cpid != wait(&status)) {
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/* Wait for child to finish */
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}
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}
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if (TERM_SIGNAL(status) != 0 || TERM_VALUE(status) != 0) {
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errno = EIO; /* We don't know why, but */
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return (-1); /* /bin/rmdir failed */
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}
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return (0);
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}
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#endif /* MASSCOMP, BSD */
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