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Totally botched ths patch...revert back to Rev 1.7, and request a

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proper context diff from the submitter...
This commit is contained in:
Marc G. Fournier 1996-10-23 05:05:32 +00:00
parent 5d53f683d3
commit 80bcade31d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=19118
1 changed files with 1 additions and 31 deletions
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32
libexec/mail.local/mail.local.c
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@ -30,7 +30,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: mail.local.c,v 1.8 1996/10/22 21:01:01 scrappy Exp $
* $Id: mail.local.c,v 1.9 1996/09/22 21:54:07 wosch Exp $
*/
#ifndef lint
@ -203,7 +203,6 @@ deliver(fd, name, nobiff)
int mbfd, nr, nw, off;
char biffmsg[100], buf[8*1024], path[MAXPATHLEN];
off_t curoff;
uid_t saveeuid;
/*
* Disallow delivery to unknown names -- special mailboxes can be
@ -234,49 +233,28 @@ deliver(fd, name, nobiff)
* just return. Another process may have already opened it, so we
* can't unlink it. Historically, binmail set the owner/group at
* each mail delivery. We no longer do this, assuming that if the
* ownership or permissions were changed there was a reason.
*
* XXX
* open(2) should support flock'ing the file.
*/
saveeuid=geteuid();
tryagain:
if (lstat(path, &sb)) {
mbfd = open(path,
O_APPEND|O_CREAT|O_EXCL|O_WRONLY, S_IRUSR|S_IWUSR);
if (mbfd == -1) {
if (errno == EEXIST)
goto tryagain;
} else if (fchown(mbfd, pw->pw_uid, pw->pw_gid)) {
e_to_sys(errno);
warn("chown %u.%u: %s", pw->pw_uid, pw->pw_gid, name);
return;
}
/* Now that the box is created and permissions are correct, we
close it and go back to the top so that we will come in
and write as the user. We dont seteuid() before the above
open, because we have to be root/bin to write in var/mail */
close(mbfd);
goto tryagain;
} else if (sb.st_nlink != 1 || S_ISLNK(sb.st_mode)) {
e_to_sys(errno);
warn("%s: linked file", path);
return;
} else {
/* Become the user, so quota enforcement will occur */
if(seteuid(pw->pw_uid) != 0) {
warn("Unable to setuid()");
return;
}
mbfd = open(path, O_APPEND|O_WRONLY, 0);
if (mbfd != -1 &&
(fstat(mbfd, &fsb) || fsb.st_nlink != 1 ||
@ -284,9 +262,7 @@ tryagain:
sb.st_ino != fsb.st_ino)) {
warn("%s: file changed after open", path);
(void)close(mbfd);
seteuid(saveeuid);
return;
}
}
@ -294,7 +270,6 @@ tryagain:
e_to_sys(errno);
warn("%s: %s", path, strerror(errno));
return;
seteuid(saveeuid);
}
/* Wait until we can get a lock on the file. */
@ -308,7 +283,6 @@ tryagain:
/* Get the starting offset of the new message for biff. */
curoff = lseek(mbfd, (off_t)0, SEEK_END);
(void)snprintf(biffmsg, sizeof(biffmsg), "%s@%qd\n",
name, curoff);
}
@ -330,7 +304,6 @@ tryagain:
warn("temporary file: %s", strerror(errno));
err2: (void)ftruncate(mbfd, curoff);
err1: (void)close(mbfd);
seteuid(saveeuid);
return;
}
@ -347,12 +320,9 @@ err1: (void)close(mbfd);
if (close(mbfd)) {
e_to_sys(errno);
warn("%s: %s", path, strerror(errno));
seteuid(saveeuid);
return;
}
seteuid(saveeuid);
if (!nobiff)
notifybiff(biffmsg);
}