324 lines
7.8 KiB
C
324 lines
7.8 KiB
C
/* $NetBSD: supcmisc.c,v 1.13 2002/07/10 21:28:13 wiz Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1992 Carnegie Mellon University
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and its
|
|
* documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
|
|
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie Mellon
|
|
* the rights to redistribute these changes.
|
|
*/
|
|
/*
|
|
* sup misc. routines, include list processing.
|
|
**********************************************************************
|
|
* HISTORY
|
|
* Revision 1.5 92/08/11 12:07:22 mrt
|
|
* Added release to FILEWHEN name.
|
|
* Brad's changes: delinted and updated variable arguement usage.
|
|
* [92/07/26 mrt]
|
|
*
|
|
* Revision 1.3 89/08/15 15:31:28 bww
|
|
* Updated to use v*printf() in place of _doprnt().
|
|
* From "[89/04/19 mja]" at CMU.
|
|
* [89/08/15 bww]
|
|
*
|
|
* 27-Dec-87 Glenn Marcy (gm0w) at Carnegie-Mellon University
|
|
* Fixed bug in ugconvert() which left pw uninitialized.
|
|
*
|
|
* 25-May-87 Doug Philips (dwp) at Carnegie-Mellon University
|
|
* Split off from sup.c and changed goaway to use printf
|
|
* instead of notify if thisC is NULL.
|
|
*
|
|
**********************************************************************
|
|
*/
|
|
|
|
#include "supcdefs.h"
|
|
#include "supextern.h"
|
|
|
|
struct liststruct { /* uid and gid lists */
|
|
char *Lname; /* name */
|
|
int Lnumber; /* uid or gid */
|
|
struct liststruct *Lnext;
|
|
};
|
|
typedef struct liststruct LIST;
|
|
|
|
#define HASHBITS 4
|
|
#define HASHSIZE (1<<HASHBITS)
|
|
#define HASHMASK (HASHSIZE-1)
|
|
#define LISTSIZE (HASHSIZE*HASHSIZE)
|
|
|
|
static LIST *uidL[LISTSIZE]; /* uid and gid lists */
|
|
static LIST *gidL[LISTSIZE];
|
|
|
|
extern COLLECTION *thisC; /* collection list pointer */
|
|
|
|
static int Lhash(char *);
|
|
static void Linsert(LIST **, char *, int);
|
|
static LIST *Llookup(LIST **, char *);
|
|
|
|
/*************************************************
|
|
*** P R I N T U P D A T E T I M E S ***
|
|
*************************************************/
|
|
|
|
void
|
|
prtime(void)
|
|
{
|
|
char buf[STRINGLENGTH];
|
|
char relsufix[STRINGLENGTH];
|
|
time_t twhen;
|
|
|
|
if ((thisC->Cflags & CFURELSUF) && thisC->Crelease)
|
|
(void) sprintf(relsufix, ".%s", thisC->Crelease);
|
|
else
|
|
relsufix[0] = '\0';
|
|
if (chdir(thisC->Cbase) < 0)
|
|
logerr("Can't change to base directory %s for collection %s",
|
|
thisC->Cbase, thisC->Cname);
|
|
twhen = getwhen(thisC->Cname, relsufix);
|
|
(void) strcpy(buf, ctime(&twhen));
|
|
buf[strlen(buf) - 1] = '\0';
|
|
loginfo("Last update occurred at %s for collection %s%s",
|
|
buf, thisC->Cname, relsufix);
|
|
}
|
|
|
|
int
|
|
establishdir(char *fname)
|
|
{
|
|
char dpart[STRINGLENGTH], fpart[STRINGLENGTH];
|
|
path(fname, dpart, fpart);
|
|
return (estabd(fname, dpart));
|
|
}
|
|
|
|
int
|
|
makedir(char *fname, unsigned int mode, struct stat * statp)
|
|
{
|
|
if (lstat(fname, statp) != -1 && !S_ISDIR(statp->st_mode)) {
|
|
if (unlink(fname) == -1) {
|
|
notify("SUP: Can't delete %s\n", fname);
|
|
return -1;
|
|
}
|
|
}
|
|
(void) mkdir(fname, mode);
|
|
|
|
return stat(fname, statp);
|
|
}
|
|
|
|
int
|
|
estabd(char *fname, char *dname)
|
|
{
|
|
char dpart[STRINGLENGTH], fpart[STRINGLENGTH];
|
|
struct stat sbuf;
|
|
int x;
|
|
|
|
if (stat(dname, &sbuf) >= 0)
|
|
return (FALSE); /* exists */
|
|
path(dname, dpart, fpart);
|
|
if (strcmp(fpart, ".") == 0) { /* dname is / or . */
|
|
notify("SUP: Can't create directory %s for %s\n", dname, fname);
|
|
return (TRUE);
|
|
}
|
|
x = estabd(fname, dpart);
|
|
if (x)
|
|
return (TRUE);
|
|
if (makedir(dname, 0755, &sbuf) < 0) {
|
|
vnotify("SUP: Can't create directory %s for %s\n", dname, fname);
|
|
return TRUE;
|
|
}
|
|
vnotify("SUP Created directory %s for %s\n", dname, fname);
|
|
return (FALSE);
|
|
}
|
|
/***************************************
|
|
*** L I S T R O U T I N E S ***
|
|
***************************************/
|
|
|
|
static int
|
|
Lhash(char *name)
|
|
{
|
|
/* Hash function is: HASHSIZE * (strlen mod HASHSIZE) +
|
|
* (char mod HASHSIZE) where "char" is last character of name (if
|
|
* name is non-null). */
|
|
|
|
int len;
|
|
char c;
|
|
|
|
len = strlen(name);
|
|
if (len > 0)
|
|
c = name[len - 1];
|
|
else
|
|
c = 0;
|
|
return (((len & HASHMASK) << HASHBITS) | (((int) c) & HASHMASK));
|
|
}
|
|
|
|
static void
|
|
Linsert(LIST ** table, char *name, int number)
|
|
{
|
|
LIST *l;
|
|
int lno;
|
|
lno = Lhash(name);
|
|
l = (LIST *) malloc(sizeof(LIST));
|
|
l->Lname = name;
|
|
l->Lnumber = number;
|
|
l->Lnext = table[lno];
|
|
table[lno] = l;
|
|
}
|
|
|
|
static LIST *
|
|
Llookup(LIST ** table, char *name)
|
|
{
|
|
int lno;
|
|
LIST *l;
|
|
lno = Lhash(name);
|
|
for (l = table[lno]; l && strcmp(l->Lname, name) != 0; l = l->Lnext);
|
|
return (l);
|
|
}
|
|
|
|
void
|
|
ugconvert(char *uname, char *gname, int *uid, int *gid, int *mode)
|
|
{
|
|
LIST *u, *g;
|
|
struct passwd *pw;
|
|
struct group *gr;
|
|
struct stat sbuf;
|
|
static int defuid = -1;
|
|
static int defgid;
|
|
static int first = TRUE;
|
|
|
|
if (first) {
|
|
bzero(uidL, sizeof(uidL));
|
|
bzero(gidL, sizeof(gidL));
|
|
first = FALSE;
|
|
}
|
|
pw = NULL;
|
|
if ((u = Llookup(uidL, uname)) != NULL)
|
|
*uid = u->Lnumber;
|
|
else if ((pw = getpwnam(uname)) != NULL) {
|
|
Linsert(uidL, salloc(uname), pw->pw_uid);
|
|
*uid = pw->pw_uid;
|
|
}
|
|
if (u || pw) {
|
|
if ((g = Llookup(gidL, gname)) != NULL) {
|
|
*gid = g->Lnumber;
|
|
return;
|
|
}
|
|
if ((gr = getgrnam(gname)) != NULL) {
|
|
Linsert(gidL, salloc(gname), gr->gr_gid);
|
|
*gid = gr->gr_gid;
|
|
return;
|
|
}
|
|
if (pw == NULL)
|
|
pw = getpwnam(uname);
|
|
*mode &= ~S_ISGID;
|
|
*gid = pw->pw_gid;
|
|
return;
|
|
}
|
|
*mode &= ~(S_ISUID | S_ISGID);
|
|
if (defuid >= 0) {
|
|
*uid = defuid;
|
|
*gid = defgid;
|
|
return;
|
|
}
|
|
if (stat(".", &sbuf) < 0) {
|
|
*uid = defuid = getuid();
|
|
*gid = defgid = getgid();
|
|
return;
|
|
}
|
|
*uid = defuid = sbuf.st_uid;
|
|
*gid = defgid = sbuf.st_gid;
|
|
}
|
|
|
|
|
|
/*********************************************
|
|
*** U T I L I T Y R O U T I N E S ***
|
|
*********************************************/
|
|
|
|
void
|
|
notify(char *fmt, ...)
|
|
{ /* record error message */
|
|
char buf[STRINGLENGTH];
|
|
char collrelname[STRINGLENGTH];
|
|
time_t tloc;
|
|
static FILE *noteF = NULL; /* mail program on pipe */
|
|
va_list ap;
|
|
|
|
va_start(ap, fmt);
|
|
if (fmt == NULL) {
|
|
if (noteF && noteF != stdout)
|
|
(void) pclose(noteF);
|
|
noteF = NULL;
|
|
va_end(ap);
|
|
return;
|
|
}
|
|
if ((thisC->Cflags & CFURELSUF) && thisC->Crelease)
|
|
(void) sprintf(collrelname, "%s-%s", collname, thisC->Crelease);
|
|
else
|
|
(void) strcpy(collrelname, collname);
|
|
|
|
if (noteF == NULL) {
|
|
if ((thisC->Cflags & CFMAIL) && thisC->Cnotify) {
|
|
(void) sprintf(buf, "mail -s \"SUP Upgrade of %s\" %s >/dev/null",
|
|
collrelname, thisC->Cnotify);
|
|
noteF = popen(buf, "w");
|
|
if (noteF == NULL) {
|
|
logerr("Can't send mail to %s for %s",
|
|
thisC->Cnotify, collrelname);
|
|
noteF = stdout;
|
|
}
|
|
} else
|
|
noteF = stdout;
|
|
tloc = time((time_t *) NULL);
|
|
fprintf(noteF, "SUP Upgrade of %s at %s",
|
|
collrelname, ctime(&tloc));
|
|
(void) fflush(noteF);
|
|
}
|
|
vfprintf(noteF, fmt, ap);
|
|
va_end(ap);
|
|
(void) fflush(noteF);
|
|
}
|
|
|
|
void
|
|
lockout(int on)
|
|
{ /* lock out interrupts */
|
|
static sigset_t oset;
|
|
sigset_t nset;
|
|
|
|
if (on) {
|
|
sigemptyset(&nset);
|
|
sigaddset(&nset, SIGHUP);
|
|
sigaddset(&nset, SIGINT);
|
|
sigaddset(&nset, SIGTERM);
|
|
sigaddset(&nset, SIGQUIT);
|
|
(void) sigprocmask(SIG_BLOCK, &nset, &oset);
|
|
} else {
|
|
(void) sigprocmask(SIG_SETMASK, &oset, NULL);
|
|
}
|
|
}
|
|
|
|
char *
|
|
fmttime(time_t time)
|
|
{
|
|
static char buf[STRINGLENGTH];
|
|
unsigned int len;
|
|
|
|
(void) strcpy(buf, ctime(&time));
|
|
len = strlen(buf + 4) - 6;
|
|
(void) strncpy(buf, buf + 4, len);
|
|
buf[len] = '\0';
|
|
return (buf);
|
|
}
|