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NetBSD/usr.sbin/sup/source/scan.c

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/*
* 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.
*/
/*
* scan.c - sup list file scanner
*
**********************************************************************
* HISTORY
* $Log: scan.c,v $
* Revision 1.2 1994/01/03 14:47:25 brezak
* Change <sys/dir.h> to <dirent.h>
*
* Revision 1.1.1.1 1993/05/21 14:52:17 cgd
* initial import of CMU's SUP to NetBSD
*
* Revision 1.8 92/08/11 12:04:28 mrt
* Brad's changes: delinted, added forward declarations of static
* functions.Added Copyright.
* [92/07/24 mrt]
*
* 18-Mar-88 Glenn Marcy (gm0w) at Carnegie-Mellon University
* Added host=<hostfile> support to releases file.
*
* 11-Mar-88 Glenn Marcy (gm0w) at Carnegie-Mellon University
* Added "rsymlink" recursive symbolic link quoting directive.
*
* 28-Jun-87 Glenn Marcy (gm0w) at Carnegie-Mellon University
* Added code for "release" support.
*
* 26-May-87 Doug Philips (dwp) at Carnegie-Mellon University
* Lets see if we'll be able to write the scan file BEFORE
* we collect the data for it. Include sys/file.h and use
* new definitions for access check codes.
*
* 20-May-87 Glenn Marcy (gm0w) at Carnegie-Mellon University
* Added type casting information for lint.
*
* 21-Jan-86 Glenn Marcy (gm0w) at Carnegie-Mellon University
* Added check for newonly upgrade when lasttime is the same as
* scantime. This will save us the trouble of parsing the scanfile
* when the client has successfully received everything in the
* scanfile already.
*
* 16-Jan-86 Glenn Marcy (gm0w) at Carnegie-Mellon University
* Clear Texec pointers in execT so that Tfree of execT will not
* free command trees associated with files in listT.
*
* 06-Jan-86 Glenn Marcy (gm0w) at Carnegie-Mellon University
* Added code to omit scanned files from list if we want new files
* only and they are old.
*
* 29-Dec-85 Glenn Marcy (gm0w) at Carnegie-Mellon University
* Major rewrite for protocol version 4. Added version numbers to
* scan file. Also added mode of file in addition to flags.
* Execute commands are now immediately after file information.
*
* 13-Dec-85 Glenn Marcy (gm0w) at Carnegie-Mellon University
* Added comments to list file format.
*
* 08-Dec-85 Glenn Marcy (gm0w) at Carnegie-Mellon University
* Added code to implement omitany. Currently doesn't know about
* {a,b,c} patterns.
*
* 07-Oct-85 Glenn Marcy (gm0w) at Carnegie-Mellon University
* Created.
*
**********************************************************************
*/
#include <libc.h>
#include <c.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/stat.h>
#ifdef HAS_POSIX_DIR
#include <dirent.h>
#else
#include <sys/dir.h>
#endif
#include <sys/file.h>
#include "sup.h"
/*************************
*** M A C R O S ***
*************************/
#define SPECNUMBER 1000
/* number of filenames produced by a single spec in the list file */
/*******************************************
*** D A T A S T R U C T U R E S ***
*******************************************/
typedef enum { /* release options */
ONEXT, OPREFIX, OLIST, OSCAN,
OHOST
} OPTION;
static char *options[] = {
"next", "prefix", "list", "scan",
"host",
0
};
typedef enum { /* <collection>/list file lines */
LUPGRADE, LOMIT, LBACKUP, LEXECUTE,
LINCLUDE, LNOACCT, LOMITANY, LALWAYS,
LSYMLINK, LRSYMLINK
} LISTTYPE;
static char *ltname[] = {
"upgrade", "omit", "backup", "execute",
"include", "noaccount", "omitany", "always",
"symlink", "rsymlink",
0
};
#define FALWAYS FUPDATE
/* list file lines */
static TREE *upgT; /* files to upgrade */
static TREE *flagsT; /* special flags: BACKUP NOACCT */
static TREE *omitT; /* recursize file omition list */
static TREE *omanyT; /* non-recursize file omition list */
static TREE *symT; /* symbolic links to quote */
static TREE *rsymT; /* recursive symbolic links to quote */
static TREE *execT; /* execute command list */
/*************************
*** E X T E R N ***
*************************/
#ifdef lint
static char _argbreak;
#else
extern char _argbreak; /* break character from nxtarg */
#endif
extern TREELIST *listTL; /* list of trees for scanning */
extern TREE *listT; /* final list of files in collection */
extern TREE *refuseT; /* files refused by client */
extern char *collname; /* collection name */
extern char *basedir; /* base directory name */
extern char *prefix; /* collection pathname prefix */
extern long lasttime; /* time of last upgrade */
extern long scantime; /* time of this scan */
extern int trace; /* trace directories */
extern int newonly; /* new files only */
#ifdef RCSSTAT
extern char *rcs_branch;
extern int candorcs;
#endif
extern long time();
/*************************************************
*** STATIC R O U T I N E S ***
*************************************************/
static makescan();
static getscan();
static doscan();
static readlistfile();
static expTinsert();
static listone();
static listentry();
static listname();
static listdir();
static omitanyone();
static anyglob();
static int getscanfile();
static chkscanfile();
static makescanfile();
static recordone();
static recordexec();
/*************************************************
*** L I S T S C A N R O U T I N E S ***
*************************************************/
static
passdelim (ptr,delim) /* skip over delimiter */
char **ptr,delim;
{
*ptr = skipover (*ptr, " \t");
if (_argbreak != delim && **ptr == delim) {
(*ptr)++;
*ptr = skipover (*ptr, " \t");
}
}
static
char *parserelease(tlp,relname,args)
TREELIST **tlp;
char *relname,*args;
{
register TREELIST *tl;
register char *arg;
register OPTION option;
int opno;
char *nextrel;
tl = (TREELIST *) malloc (sizeof(TREELIST));
if ((*tlp = tl) == NULL)
goaway ("Couldn't allocate TREELIST");
tl->TLnext = NULL;
tl->TLname = salloc (relname);
tl->TLprefix = NULL;
tl->TLlist = NULL;
tl->TLscan = NULL;
tl->TLhost = NULL;
nextrel = NULL;
args = skipover (args," \t");
while (*(arg=nxtarg(&args," \t="))) {
for (opno = 0; options[opno] != NULL; opno++)
if (strcmp (arg,options[opno]) == 0)
break;
if (options[opno] == NULL)
goaway ("Invalid release option %s for release %s",
arg,relname);
option = (OPTION) opno;
switch (option) {
case ONEXT:
passdelim (&args,'=');
arg = nxtarg (&args," \t");
nextrel = salloc (arg);
break;
case OPREFIX:
passdelim (&args,'=');
arg = nxtarg (&args," \t");
tl->TLprefix = salloc (arg);
break;
case OLIST:
passdelim (&args,'=');
arg = nxtarg (&args," \t");
tl->TLlist = salloc (arg);
break;
case OSCAN:
passdelim (&args,'=');
arg = nxtarg (&args," \t");
tl->TLscan = salloc (arg);
break;
case OHOST:
passdelim (&args,'=');
arg = nxtarg (&args," \t");
tl->TLhost = salloc (arg);
break;
}
}
return (nextrel);
}
getrelease (release)
char *release;
{
TREELIST *tl;
char buf[STRINGLENGTH];
char *p,*q;
int rewound;
FILE *f;
if (release == NULL)
release = salloc (DEFRELEASE);
listTL = NULL;
(void) sprintf (buf,FILERELEASES,collname);
f = fopen (buf,"r");
if (f != NULL) {
rewound = TRUE;
for (;;) {
p = fgets (buf,STRINGLENGTH,f);
if (p == NULL) {
if (rewound)
break;
rewind (f);
rewound = TRUE;
continue;
}
q = index (p,'\n');
if (q) *q = 0;
if (index ("#;:",*p)) continue;
q = nxtarg (&p," \t");
if (strcmp (q,release) != 0)
continue;
release = parserelease (&tl,release,p);
if (tl->TLprefix == NULL)
tl->TLprefix = prefix;
else if (chdir (tl->TLprefix) < 0)
return (FALSE);
else
(void) chdir (basedir);
tl->TLnext = listTL;
listTL = tl;
if (release == NULL)
break;
rewound = FALSE;
}
(void) fclose (f);
}
if (release == NULL)
return (TRUE);
if (strcmp (release,DEFRELEASE) != 0)
return (FALSE);
(void) parserelease (&tl,release,"");
tl->TLprefix = prefix;
tl->TLnext = listTL;
listTL = tl;
return (TRUE);
}
makescanlists ()
{
TREELIST *tl;
char buf[STRINGLENGTH];
char *p,*q;
FILE *f;
char *saveprefix = prefix;
int count = 0;
(void) sprintf (buf,FILERELEASES,collname);
f = fopen (buf,"r");
if (f != NULL) {
while (p = fgets (buf,STRINGLENGTH,f)) {
q = index (p,'\n');
if (q) *q = 0;
if (index ("#;:",*p)) continue;
q = nxtarg (&p," \t");
(void) parserelease (&tl,q,p);
if ((prefix = tl->TLprefix) == NULL)
prefix = saveprefix;
if (prefix != NULL) {
if (chdir (prefix) < 0)
goaway ("Can't chdir to %s",prefix);
(void) chdir (basedir);
}
makescan (tl->TLlist,tl->TLscan);
free ((char *)tl);
count++;
}
(void) fclose (f);
}
if (count == 0)
makescan ((char *)NULL,(char *)NULL);
}
static
scanone (t)
register TREE *t;
{
register TREE *newt;
if (newonly && (t->Tflags&FNEW) == 0)
return (SCMOK);
newt = Tinsert (&listT,t->Tname,FALSE);
if (newt == NULL)
return (SCMOK);
newt->Tmode = t->Tmode;
newt->Tflags = t->Tflags;
newt->Tmtime = t->Tmtime;
return (SCMOK);
}
getscanlists ()
{
TREELIST *tl,*stl;
stl = listTL;
listTL = NULL;
while ((tl = stl) != NULL) {
prefix = tl->TLprefix;
getscan (tl->TLlist,tl->TLscan);
tl->TLtree = listT;
stl = tl->TLnext;
tl->TLnext = listTL;
listTL = tl;
}
listT = NULL;
for (tl = listTL; tl != NULL; tl = tl->TLnext)
(void) Tprocess (tl->TLtree,scanone);
}
static
makescan (listfile,scanfile)
char *listfile,*scanfile;
{
listT = NULL;
chkscanfile (scanfile); /* can we can write a scan file? */
doscan (listfile); /* read list file and scan disk */
makescanfile (scanfile); /* record names in scan file */
Tfree (&listT); /* free file list tree */
}
static
getscan (listfile,scanfile)
char *listfile,*scanfile;
{
struct tm *utc_time;
listT = NULL;
if (!getscanfile(scanfile)) { /* check for pre-scanned file list */
scantime = time ((long *)NULL);
doscan (listfile); /* read list file and scan disk */
}
}
static
doscan (listfile)
char *listfile;
{
char buf[STRINGLENGTH];
int listone ();
upgT = NULL;
flagsT = NULL;
omitT = NULL;
omanyT = NULL;
execT = NULL;
symT = NULL;
rsymT = NULL;
if (listfile == NULL)
listfile = FILELISTDEF;
(void) sprintf (buf,FILELIST,collname,listfile);
readlistfile (buf); /* get contents of list file */
(void) Tprocess (upgT,listone); /* build list of files specified */
cdprefix ((char *)NULL);
Tfree (&upgT);
Tfree (&flagsT);
Tfree (&omitT);
Tfree (&omanyT);
Tfree (&execT);
Tfree (&symT);
Tfree (&rsymT);
}
static
readlistfile (fname)
char *fname;
{
char buf[STRINGLENGTH],*p;
register char *q,*r;
register FILE *f;
register int ltn,n,i,flags;
register TREE **t;
register LISTTYPE lt;
char *speclist[SPECNUMBER];
f = fopen (fname,"r");
if (f == NULL) goaway ("Can't read list file %s",fname);
cdprefix (prefix);
while (p = fgets (buf,STRINGLENGTH,f)) {
if (q = index (p,'\n')) *q = '\0';
if (index ("#;:",*p)) continue;
q = nxtarg (&p," \t");
if (*q == '\0') continue;
for (ltn = 0; ltname[ltn] && strcmp(q,ltname[ltn]) != 0; ltn++);
if (ltname[ltn] == NULL)
goaway ("Invalid list file keyword %s",q);
lt = (LISTTYPE) ltn;
flags = 0;
switch (lt) {
case LUPGRADE:
t = &upgT;
break;
case LBACKUP:
t = &flagsT;
flags = FBACKUP;
break;
case LNOACCT:
t = &flagsT;
flags = FNOACCT;
break;
case LSYMLINK:
t = &symT;
break;
case LRSYMLINK:
t = &rsymT;
break;
case LOMIT:
t = &omitT;
break;
case LOMITANY:
t = &omanyT;
break;
case LALWAYS:
t = &upgT;
flags = FALWAYS;
break;
case LINCLUDE:
while (*(q=nxtarg(&p," \t"))) {
cdprefix ((char *)NULL);
n = expand (q,speclist,SPECNUMBER);
for (i = 0; i < n && i < SPECNUMBER; i++) {
readlistfile (speclist[i]);
cdprefix ((char *)NULL);
free (speclist[i]);
}
cdprefix (prefix);
}
continue;
case LEXECUTE:
r = p = q = skipover (p," \t");
do {
q = p = skipto (p," \t(");
p = skipover (p," \t");
} while (*p != '(' && *p != '\0');
if (*p++ == '(') {
*q = '\0';
do {
q = nxtarg (&p," \t)");
if (*q == 0)
_argbreak = ')';
else
expTinsert (q,&execT,0,r);
} while (_argbreak != ')');
continue;
}
/* fall through */
default:
goaway ("Error in handling list file keyword %d",ltn);
}
while (*(q=nxtarg(&p," \t"))) {
if (lt == LOMITANY)
(void) Tinsert (t,q,FALSE);
else
expTinsert (q,t,flags,(char *)NULL);
}
}
(void) fclose (f);
}
static
expTinsert (p,t,flags,exec)
char *p;
TREE **t;
int flags;
char *exec;
{
register int n, i;
register TREE *newt;
char *speclist[SPECNUMBER];
char buf[STRINGLENGTH];
n = expand (p,speclist,SPECNUMBER);
for (i = 0; i < n && i < SPECNUMBER; i++) {
newt = Tinsert (t,speclist[i],TRUE);
newt->Tflags |= flags;
if (exec) {
(void) sprintf (buf,exec,speclist[i]);
(void) Tinsert (&newt->Texec,buf,FALSE);
}
free (speclist[i]);
}
}
static
listone (t) /* expand and add one name from upgrade list */
TREE *t;
{
listentry(t->Tname,t->Tname,(char *)NULL,(t->Tflags&FALWAYS) != 0);
return (SCMOK);
}
static
listentry(name,fullname,updir,always)
register char *name, *fullname, *updir;
int always;
{
struct stat statbuf;
int link = 0;
int omitanyone ();
if (Tlookup (refuseT,fullname)) return;
if (!always) {
if (Tsearch (omitT,fullname)) return;
if (Tprocess (omanyT,omitanyone,fullname) != SCMOK)
return;
}
if (lstat(name,&statbuf) < 0)
return;
if ((statbuf.st_mode&S_IFMT) == S_IFLNK) {
if (Tsearch (symT,fullname)) {
listname (fullname,&statbuf);
return;
}
if (Tlookup (rsymT,fullname)) {
listname (fullname,&statbuf);
return;
}
if (updir) link++;
if (stat(name,&statbuf) < 0) return;
}
if ((statbuf.st_mode&S_IFMT) == S_IFDIR) {
if (access(name,R_OK|X_OK) < 0) return;
if (chdir(name) < 0) return;
listname (fullname,&statbuf);
if (trace) {
printf ("Scanning directory %s\n",fullname);
(void) fflush (stdout);
}
listdir (fullname,always);
if (updir == 0 || link) {
(void) chdir (basedir);
if (prefix) (void) chdir (prefix);
if (updir && *updir) (void) chdir (updir);
} else
(void) chdir ("..");
return;
}
if (access(name,R_OK) < 0) return;
#ifdef RCSSTAT
if (candorcs) {
char rcs_release[STRINGLENGTH];
int status;
if (rcs_branch != NULL)
#ifdef CVS
sprintf(rcs_release, "-r %s", rcs_branch);
#else
sprintf(rcs_release, "-r%s", rcs_branch);
#endif
else
rcs_release[0] = '\0';
#ifdef CVS
sprintf(sys_com, "cvs -d %s -r -l -Q co -p %s %s > %s\n", cvs_root, rcs_release, name, rcs_file);
#else
status = runp("rcsstat", "rcsstat", "-q", rcs_release, name, 0);
#endif
if (status != 0) return;
}
#endif
listname (fullname,&statbuf);
}
static
listname (name,st)
register char *name;
register struct stat *st;
{
register TREE *t,*ts;
register int new;
register TREELIST *tl;
new = st->st_ctime > lasttime;
if (newonly && !new) {
for (tl = listTL; tl != NULL; tl = tl->TLnext)
if (ts = Tsearch (tl->TLtree,name))
ts->Tflags &= ~FNEW;
return;
}
t = Tinsert (&listT,name,FALSE);
if (t == NULL) return;
t->Tmode = st->st_mode;
t->Tctime = st->st_ctime;
t->Tmtime = st->st_mtime;
if (new) t->Tflags |= FNEW;
if (ts = Tsearch (flagsT,name))
t->Tflags |= ts->Tflags;
if (ts = Tsearch (execT,name)) {
t->Texec = ts->Texec;
ts->Texec = NULL;
}
}
static
listdir (name,always) /* expand directory */
char *name;
int always;
{
#ifdef HAS_POSIX_DIR
struct dirent *dentry;
#else
struct direct *dentry;
#endif
register DIR *dirp;
char ename[STRINGLENGTH],newname[STRINGLENGTH],filename[STRINGLENGTH];
register char *p,*newp;
register int i;
dirp = opendir (".");
if (dirp == 0) return; /* unreadable: probably protected */
p = name; /* punt leading ./ and trailing / */
newp = newname;
if (p[0] == '.' && p[1] == '/') {
p += 2;
while (*p == '/') p++;
}
while (*newp++ = *p++) ; /* copy string */
--newp; /* trailing null */
while (newp > newname && newp[-1] == '/') --newp; /* trailing / */
*newp = 0;
if (strcmp (newname,".") == 0) newname[0] = 0; /* "." ==> "" */
while (dentry=readdir(dirp)) {
if (dentry->d_ino == 0) continue;
if (strcmp(dentry->d_name,".") == 0) continue;
if (strcmp(dentry->d_name,"..") == 0) continue;
for (i=0; i<=MAXNAMLEN && dentry->d_name[i]; i++)
ename[i] = dentry->d_name[i];
ename[i] = 0;
if (*newname)
(void) sprintf (filename,"%s/%s",newname,ename);
else
(void) strcpy (filename,ename);
listentry(ename,filename,newname,always);
}
closedir (dirp);
}
static
omitanyone (t,filename)
TREE *t;
char **filename;
{
if (anyglob (t->Tname,*filename))
return (SCMERR);
return (SCMOK);
}
static
anyglob (pattern,match)
char *pattern,*match;
{
register char *p,*m;
register char *pb,*pe;
p = pattern;
m = match;
while (*m && *p == *m ) {
p++;
m++;
}
if (*p == '\0' && *m == '\0')
return (TRUE);
switch (*p++) {
case '*':
for (;;) {
if (*p == '\0')
return (TRUE);
if (*m == '\0')
return (*p == '\0');
if (anyglob (p,++m))
return (TRUE);
}
case '?':
return (anyglob (p,++m));
case '[':
pb = p;
while (*(++p) != ']')
if (*p == '\0')
return (FALSE);
pe = p;
for (p = pb + 1; p != pe; p++) {
switch (*p) {
case '-':
if (p == pb && *m == '-') {
p = pe + 1;
return (anyglob (p,++m));
}
if (p == pb)
continue;
if ((p + 1) == pe)
return (FALSE);
if (*m > *(p - 1) &&
*m <= *(p + 1)) {
p = pe + 1;
return (anyglob (p,++m));
}
continue;
default:
if (*m == *p) {
p = pe + 1;
return (anyglob (p,++m));
}
}
}
return (FALSE);
default:
return (FALSE);
}
}
/*****************************************
*** R E A D S C A N F I L E ***
*****************************************/
static
int getscanfile (scanfile)
char *scanfile;
{
char buf[STRINGLENGTH];
struct stat sbuf;
register FILE *f;
TREE ts;
register char *p,*q;
register TREE *tmp, *t = NULL;
register notwanted;
register TREELIST *tl;
if (scanfile == NULL)
scanfile = FILESCANDEF;
(void) sprintf (buf,FILESCAN,collname,scanfile);
if (stat(buf,&sbuf) < 0)
return (FALSE);
if ((f = fopen (buf,"r")) == NULL)
return (FALSE);
if ((p = fgets (buf,STRINGLENGTH,f)) == NULL) {
(void) fclose (f);
return (FALSE);
}
if (q = index (p,'\n')) *q = '\0';
if (*p++ != 'V') {
(void) fclose (f);
return (FALSE);
}
if (atoi (p) != SCANVERSION) {
(void) fclose (f);
return (FALSE);
}
scantime = sbuf.st_mtime; /* upgrade time is time of supscan,
* i.e. time of creation of scanfile */
if (newonly && scantime == lasttime) {
(void) fclose (f);
return (TRUE);
}
notwanted = FALSE;
while (p = fgets (buf,STRINGLENGTH,f)) {
q = index (p,'\n');
if (q) *q = 0;
ts.Tflags = 0;
if (*p == 'X') {
if (notwanted) continue;
if (t == NULL)
goaway ("scanfile format inconsistant");
(void) Tinsert (&t->Texec,++p,FALSE);
continue;
}
notwanted = FALSE;
if (*p == 'B') {
p++;
ts.Tflags |= FBACKUP;
}
if (*p == 'N') {
p++;
ts.Tflags |= FNOACCT;
}
if ((q = index (p,' ')) == NULL)
goaway ("scanfile format inconsistant");
*q++ = '\0';
ts.Tmode = atoo (p);
p = q;
if ((q = index (p,' ')) == NULL)
goaway ("scanfile format inconsistant");
*q++ = '\0';
ts.Tctime = atoi (p);
p = q;
if ((q = index (p,' ')) == NULL)
goaway ("scanfile format inconsistant");
*q++ = 0;
ts.Tmtime = atoi (p);
if (ts.Tctime > lasttime)
ts.Tflags |= FNEW;
else if (newonly) {
for (tl = listTL; tl != NULL; tl = tl->TLnext)
if (tmp = Tsearch (tl->TLtree,q))
tmp->Tflags &= ~FNEW;
notwanted = TRUE;
continue;
}
if (Tlookup (refuseT,q)) {
notwanted = TRUE;
continue;
}
t = Tinsert (&listT,q,TRUE);
t->Tmode = ts.Tmode;
t->Tflags = ts.Tflags;
t->Tctime = ts.Tctime;
t->Tmtime = ts.Tmtime;
}
(void) fclose (f);
return (TRUE);
}
/*******************************************
*** W R I T E S C A N F I L E ***
*******************************************/
static chkscanfile (scanfile)
char *scanfile;
{
char tname[STRINGLENGTH], fname[STRINGLENGTH];
FILE *f;
if (scanfile == NULL)
scanfile = FILESCANDEF;
(void) sprintf (fname,FILESCAN,collname,scanfile);
(void) sprintf (tname,"%s.temp",fname);
if (NULL == (f = fopen (tname, "w")))
goaway ("Can't test scan file temp %s for %s",tname,collname);
else {
(void) unlink (tname);
(void) fclose (f);
}
}
static makescanfile (scanfile)
char *scanfile;
{
char tname[STRINGLENGTH],fname[STRINGLENGTH];
struct timeval tbuf[2];
FILE *scanF; /* output file for scanned file list */
int recordone ();
if (scanfile == NULL)
scanfile = FILESCANDEF;
(void) sprintf (fname,FILESCAN,collname,scanfile);
(void) sprintf (tname,"%s.temp",fname);
scanF = fopen (tname,"w");
if (scanF == NULL)
goaway ("Can't write scan file temp %s for %s",tname,collname);
fprintf (scanF,"V%d\n",SCANVERSION);
(void) Tprocess (listT,recordone,scanF);
(void) fclose (scanF);
if (rename (tname,fname) < 0)
goaway ("Can't change %s to %s",tname,fname);
(void) unlink (tname);
tbuf[0].tv_sec = time((long *)NULL); tbuf[0].tv_usec = 0;
tbuf[1].tv_sec = scantime; tbuf[1].tv_usec = 0;
(void) utimes (fname,tbuf);
}
static
recordone (t,scanF)
TREE *t;
FILE **scanF;
{
int recordexec ();
if (t->Tflags&FBACKUP) fprintf (*scanF,"B");
if (t->Tflags&FNOACCT) fprintf (*scanF,"N");
fprintf (*scanF,"%o %d %d %s\n",
t->Tmode,t->Tctime,t->Tmtime,t->Tname);
(void) Tprocess (t->Texec,recordexec,*scanF);
return (SCMOK);
}
static
recordexec (t,scanF)
TREE *t;
FILE **scanF;
{
fprintf(*scanF,"X%s\n",t->Tname);
return (SCMOK);
}
cdprefix (prefix)
char *prefix;
{
static char *curprefix = NULL;
if (curprefix == NULL) {
if (prefix == NULL)
return;
(void) chdir (prefix);
curprefix = prefix;
return;
}
if (prefix == NULL) {
(void) chdir (basedir);
curprefix = NULL;
return;
}
if (prefix == curprefix)
return;
if (strcmp (prefix, curprefix) == 0) {
curprefix = prefix;
return;
}
(void) chdir (basedir);
(void) chdir (prefix);
curprefix = prefix;
}
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