Since youre discussing pine, and its problems, here is something i
found while reading through the source for pico, the editor in pine. It
seems that there is a race condition here in the routines it uses to make
temporary files.
Cheers,
dynamo
ps: floydy, get to bed. you shouldnt be working at this hour.
here's the problem in action:
bring# ps axO user | grep pico
10420 notlumpy p4 I+ 0:00.04 pico
10366 lumpy p5 I+ 0:00.03 pico -w blahblah
bring# ln -s mark.sucks pico.10420
bring# ls -l
total 561
-rw-r--r-- 1 lumpy wheel 562100 Sep 1 19:34 L74874TMP.gz
lrwxrwxrwt 1 root wheel 10 Sep 2 01:20 pico.10420 -> mark.sucks
drwxr-xr-x 3 root wheel 512 Aug 30 21:38 screens
(at this point in another window i did a spell check,
one function that calls writetmp)
bring# ls -l
total 562
-rw-r--r-- 1 lumpy wheel 562100 Sep 1 19:34 L74874TMP.gz
-rw------- 1 notlumpy wheel 60 Sep 2 01:20 mark.sucks
drwxr-xr-x 3 root wheel 512 Aug 30 21:38 screens
bring#
here are some code snippets:
os_unix.c ffwopen
-----------------
/*
* Open a file for writing. Return TRUE if all is well, and FALSE on error
* (cannot create).
*/
ffwopen(fn)
char *fn;
{
extern FILE *ffp;
if ((ffp=fopen(fn, "w")) == NULL) {
emlwrite("Cannot open file for writing", NULL);
return (FIOERR);
}
-----------------
os_unix.c tmpname
-----------------
/*
* tmpname - return a temporary file name in the given buffer
*/
void
tmpname(name)
char *name;
{
sprintf(name, "/tmp/pico.%d", getpid()); /* tmp file name */
}
-----------------
file.c writetmp
-----------------
* writetmp - write a temporary file for message text, mindful of
* access restrictions and included text. If n is true, include
* lines that indicated included message text, otw forget them
*/
char *writetmp(f, n)
int f, n;
{
static char fn[NFILEN];
register int s;
register LINE *lp;
register int nline;
tmpname(fn);
if ((s=ffwopen(fn)) != FIOSUC) /* Open writes message. */
return(NULL);
(code continues...)
-----------------