exportfs, oexportfs, iostats: make -d log to stderr
exportfs -d logs 9p traffic to /tmp/exportdb. -f allows writing to a different file. exportfs silently continues if it doesn't have permissions to create or write to /tmp/exportdb. These are poor behaviors. A better default is to write to stderr, since it is 9P debug info that is better immediately printed, and not user info that is better handled by syslog(). As a result, -f is obsolete and thus removed. Redirect responsibility is now on rc. As a side effect, rc will fail if it doesn't have permissions to write. exportfs(4) is updated to reflect all changes and with a better Synopsis. oexportfs is changed to match exportfs. oexportfs(4) is updated to reflect all changes. The Synopsis is not changed due to the number of flags. Removed -f from iostats. iostats(4) is updated to reflect all changes. ---
This commit is contained in:
amavect
parent
8c228a123f
commit
0f58e47551
10 changed files with 70 additions and 98 deletions
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@ -4,7 +4,23 @@ exportfs, srvfs \- file server plumbing
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.SH SYNOPSIS
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.B exportfs
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[
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.I options
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.B -dsR
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]
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[
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.B -m
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.I msize
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]
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[
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.B -r
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.I root
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]
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[
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.B -P
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.I patternfile
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]
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[
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.B -S
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.I srvfile
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]
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.PP
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.B srvfs
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@ -39,11 +55,8 @@ into a local file tree.
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.PP
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The options are:
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.TP
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.B -d -f \fIdbgfile
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Log all 9P traffic to
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.I dbgfile
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(default
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.BR /tmp/exportdb ).
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.B -d
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Log all 9P traffic to standard error.
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.TP
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.B -P \fIpatternfile
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Restrict the set of exported files.
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@ -7,9 +7,6 @@ iostats \- file system to measure I/O
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.B -d
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] [
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.B -C
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] [
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.B -f
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.I dbfile
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]
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.I cmd
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[
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@ -17,7 +14,7 @@ iostats \- file system to measure I/O
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]
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.SH DESCRIPTION
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.I Iostats
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is a user-level 9p filter that interposes itself between a program
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is a user-level 9P filter that interposes itself between a program
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and the regular file server, which
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allows it to gather statistics of file system
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use at the level of the Plan 9 file system protocol, 9P.
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@ -51,11 +48,8 @@ by the program in terms of opens, reads and writes.
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.PP
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If the
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.B -d
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flag is present, a debugging log including all traffic
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is written to
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.I dbfile
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(default
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.BR iostats.out ).
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flag is present, a debugging log including all 9P traffic
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is written to standard error.
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.PP
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The
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.B -C
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@ -73,7 +67,7 @@ iostats ls
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Start a new shell, displaying all 9P traffic caused by the shell or its children:
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.IP
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.EX
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iostats -df /fd/1 rc
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iostats -d rc
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.EE
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.SH SOURCE
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.B /sys/src/cmd/iostats.c
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@ -26,11 +26,8 @@ services.
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.PP
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The options are:
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.TP
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.B -d -f \fIdbgfile
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Log all 9P traffic to
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.I dbgfile
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(default
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.BR /tmp/exportdb ).
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.B -d
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Log all 9P traffic to standard error.
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.TP
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.B -P \fIpatternfile
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Restrict the set of exported files.
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@ -10,18 +10,16 @@ int readonly;
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void
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usage(void)
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{
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fprint(2, "usage: %s [-dsR] [-f dbgfile] [-m msize] [-r root] "
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"[-S srvfile] [-P exclusion-file]\n", argv0);
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fprint(2, "usage: %s [-dsR] [-m msize] [-r root] "
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"[-P patternfile] [-S srvfile]\n", argv0);
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fatal("usage");
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}
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void
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main(int argc, char **argv)
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{
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char *dbfile, *srv, *srvfdfile;
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int n;
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char *srv, *srvfdfile;
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dbfile = "/tmp/exportdb";
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srv = nil;
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srvfd = -1;
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srvfdfile = nil;
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@ -31,10 +29,6 @@ main(int argc, char **argv)
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dbg++;
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break;
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case 'f':
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dbfile = EARGF(usage());
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break;
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case 'm':
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messagesize = strtoul(EARGF(usage()), nil, 0);
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break;
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@ -82,13 +76,7 @@ main(int argc, char **argv)
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exclusions();
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if(dbg) {
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n = create(dbfile, OWRITE|OTRUNC, 0666);
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dup(n, DFD);
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close(n);
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}
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DEBUG(DFD, "exportfs: started\n");
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DEBUG(2, "exportfs: started\n");
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rfork(RFNOTEG|RFREND);
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@ -106,13 +94,13 @@ main(int argc, char **argv)
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char ebuf[ERRMAX];
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ebuf[0] = '\0';
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errstr(ebuf, sizeof ebuf);
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DEBUG(DFD, "chdir(\"%s\"): %s\n", srv, ebuf);
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DEBUG(2, "chdir(\"%s\"): %s\n", srv, ebuf);
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mounterror(ebuf);
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}
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DEBUG(DFD, "invoked as server for %s", srv);
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DEBUG(2, "invoked as server for %s", srv);
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}
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DEBUG(DFD, "\niniting root\n");
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DEBUG(2, "\niniting root\n");
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initroot();
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io();
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}
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@ -3,7 +3,6 @@
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*/
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#define DEBUG if(!dbg){}else fprint
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#define DFD 9
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#define fidhash(s) fhash[s%FHASHSIZE]
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typedef struct Fsrpc Fsrpc;
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@ -65,7 +65,7 @@ Xflush(Fsrpc *t)
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w = m->busy;
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if(w != nil && w->work.tag == t->work.oldtag) {
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w->flushtag = t->work.tag;
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DEBUG(DFD, "\tset flushtag %d\n", t->work.tag);
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DEBUG(2, "\tset flushtag %d\n", t->work.tag);
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postnote(PNPROC, m->pid, "flush");
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unlock(m);
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putsbuf(t);
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@ -75,7 +75,7 @@ Xflush(Fsrpc *t)
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}
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reply(&t->work, &rhdr, 0);
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DEBUG(DFD, "\tflush reply\n");
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DEBUG(2, "\tflush reply\n");
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putsbuf(t);
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}
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@ -359,7 +359,7 @@ Xremove(Fsrpc *t)
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}
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path = makepath(f->f, "");
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DEBUG(DFD, "\tremove: %s\n", path);
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DEBUG(2, "\tremove: %s\n", path);
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if(remove(path) < 0) {
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free(path);
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errstr(err, sizeof err);
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@ -518,7 +518,7 @@ blockingslave(Proc *m)
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if(p == nil) /* Swept */
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break;
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DEBUG(DFD, "\tslave: %d %F\n", m->pid, &p->work);
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DEBUG(2, "\tslave: %d %F\n", m->pid, &p->work);
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if(p->flushtag != NOTAG)
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goto flushme;
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@ -629,7 +629,7 @@ slaveopen(Fsrpc *p)
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}
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path = makepath(f->f, "");
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DEBUG(DFD, "\topen: %s %d\n", path, work->mode);
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DEBUG(2, "\topen: %s %d\n", path, work->mode);
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f->fid = open(path, work->mode);
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free(path);
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if(f->fid < 0 || (d = dirfstat(f->fid)) == nil) {
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@ -646,7 +646,7 @@ slaveopen(Fsrpc *p)
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goto Error;
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}
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DEBUG(DFD, "\topen: fd %d\n", f->fid);
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DEBUG(2, "\topen: fd %d\n", f->fid);
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f->mode = work->mode;
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f->offset = 0;
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rhdr.iounit = getiounit(f->fid);
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@ -688,7 +688,7 @@ slaveread(Fsrpc *p)
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reply(work, &rhdr, err);
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return;
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}
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DEBUG(DFD, "\tread: fd=%d %d bytes\n", f->fid, r);
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DEBUG(2, "\tread: fd=%d %d bytes\n", f->fid, r);
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rhdr.data = data;
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rhdr.count = r;
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@ -720,7 +720,7 @@ slavewrite(Fsrpc *p)
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return;
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}
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DEBUG(DFD, "\twrite: %d bytes fd=%d\n", n, f->fid);
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DEBUG(2, "\twrite: %d bytes fd=%d\n", n, f->fid);
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rhdr.count = n;
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reply(work, &rhdr, 0);
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@ -49,7 +49,7 @@ io(void)
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if(convM2S(r->buf, n, &r->work) != n)
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fatal("convM2S format error");
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DEBUG(DFD, "%F\n", &r->work);
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DEBUG(2, "%F\n", &r->work);
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(fcalls[r->work.type])(r);
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}
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}
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@ -69,7 +69,7 @@ reply(Fcall *r, Fcall *t, char *err)
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else
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t->type = r->type + 1;
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DEBUG(DFD, "\t%F\n", t);
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DEBUG(2, "\t%F\n", t);
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data = malloc(messagesize); /* not mallocz; no need to clear */
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if(data == nil)
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@ -224,7 +224,7 @@ freefile(File *f)
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while(--f->ref == 0){
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freecnt++;
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DEBUG(DFD, "free %s\n", f->name);
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DEBUG(2, "free %s\n", f->name);
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/* delete from parent */
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parent = f->parent;
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if(parent->child == f)
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@ -250,7 +250,7 @@ file(File *parent, char *name)
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char *path;
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File *f;
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DEBUG(DFD, "\tfile: 0x%p %s name %s\n", parent, parent->name, name);
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DEBUG(2, "\tfile: 0x%p %s name %s\n", parent, parent->name, name);
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path = makepath(parent, name);
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if(patternfile != nil && excludefile(path)){
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@ -429,17 +429,17 @@ uniqueqid(Dir *d)
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}
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path = d->qid.path;
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while(qidexists(path)){
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DEBUG(DFD, "collision on %s\n", d->name);
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DEBUG(2, "collision on %s\n", d->name);
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/* collision: find a new one */
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ncollision++;
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path &= QIDPATH;
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++newqid;
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if(newqid >= (1<<16)){
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DEBUG(DFD, "collision wraparound\n");
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DEBUG(2, "collision wraparound\n");
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newqid = 1;
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}
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path |= newqid<<48;
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DEBUG(DFD, "assign qid %.16llux\n", path);
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DEBUG(2, "assign qid %.16llux\n", path);
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}
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qidcnt++;
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q = emallocz(sizeof(Qidtab));
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@ -472,7 +472,7 @@ fatal(char *s, ...)
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postnote(PNPROC, m->pid, "kill");
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if(s != nil) {
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DEBUG(DFD, "%s\n", buf);
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DEBUG(2, "%s\n", buf);
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sysfatal("%s", buf); /* caution: buf could contain '%' */
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} else
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exits(nil);
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@ -59,7 +59,7 @@ filter(int fd, char *cmd, char *host)
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strecpy(strrchr(addr, '!'), addr+sizeof(addr), s);
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}
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DEBUG(DFD, "filter: %s\n", addr);
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DEBUG(2, "filter: %s\n", addr);
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snprint(buf, sizeof(buf), "%s", cmd);
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argc = tokenize(buf, argv, nelem(argv)-3);
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@ -108,7 +108,7 @@ mksecret(char *t, uchar *f)
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void
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usage(void)
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{
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fprint(2, "usage: %s [-adnsR] [-f dbgfile] [-m msize] [-r root] "
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fprint(2, "usage: %s [-adnsR] [-m msize] [-r root] "
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"[-S srvfile] [-e 'crypt hash'] [-P exclusion-file] "
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"[-A announce-string] [-B address]\n", argv0);
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fatal("usage");
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@ -118,12 +118,11 @@ void
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main(int argc, char **argv)
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{
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char buf[ERRMAX], ebuf[ERRMAX], initial[4], *ini, *srvfdfile;
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char *dbfile, *srv, *na, *nsfile, *keyspec;
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char *srv, *na, *nsfile, *keyspec;
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int doauth, n, fd;
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AuthInfo *ai;
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Fsrpc *r;
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dbfile = "/tmp/exportdb";
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srv = nil;
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srvfd = -1;
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srvfdfile = nil;
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|
@ -148,10 +147,6 @@ main(int argc, char **argv)
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ealgs = nil;
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break;
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case 'f':
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dbfile = EARGF(usage());
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break;
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case 'k':
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keyspec = EARGF(usage());
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break;
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|
@ -254,18 +249,12 @@ main(int argc, char **argv)
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exclusions();
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if(dbg) {
|
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n = create(dbfile, OWRITE|OTRUNC, 0666);
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dup(n, DFD);
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close(n);
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}
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if(srvfd >= 0 && srv != nil){
|
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fprint(2, "%s: -S cannot be used with -r or -s\n", argv0);
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usage();
|
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}
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|
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DEBUG(DFD, "%s: started\n", argv0);
|
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DEBUG(2, "%s: started\n", argv0);
|
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|
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rfork(RFNOTEG|RFREND);
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|
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|
|
@ -289,10 +278,10 @@ main(int argc, char **argv)
|
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if(chdir(srv) < 0) {
|
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ebuf[0] = '\0';
|
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errstr(ebuf, sizeof ebuf);
|
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DEBUG(DFD, "chdir(\"%s\"): %s\n", srv, ebuf);
|
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DEBUG(2, "chdir(\"%s\"): %s\n", srv, ebuf);
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mounterror(ebuf);
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}
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DEBUG(DFD, "invoked as server for %s", srv);
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DEBUG(2, "invoked as server for %s", srv);
|
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strncpy(buf, srv, sizeof buf);
|
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}
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else {
|
||||
|
|
@ -301,22 +290,22 @@ main(int argc, char **argv)
|
|||
if(n < 0) {
|
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errstr(buf, sizeof buf);
|
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fprint(0, "read(0): %s\n", buf);
|
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DEBUG(DFD, "read(0): %s\n", buf);
|
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DEBUG(2, "read(0): %s\n", buf);
|
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exits(buf);
|
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}
|
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buf[n] = 0;
|
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if(chdir(buf) < 0) {
|
||||
errstr(ebuf, sizeof ebuf);
|
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fprint(0, "chdir(%d:\"%s\"): %s\n", n, buf, ebuf);
|
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DEBUG(DFD, "chdir(%d:\"%s\"): %s\n", n, buf, ebuf);
|
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DEBUG(2, "chdir(%d:\"%s\"): %s\n", n, buf, ebuf);
|
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exits(ebuf);
|
||||
}
|
||||
}
|
||||
|
||||
DEBUG(DFD, "\niniting root\n");
|
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DEBUG(2, "\niniting root\n");
|
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initroot();
|
||||
|
||||
DEBUG(DFD, "%s: %s\n", argv0, buf);
|
||||
DEBUG(2, "%s: %s\n", argv0, buf);
|
||||
|
||||
if(srv == nil && srvfd == -1 && write(0, "OK", 2) != 2)
|
||||
fatal("open ack write");
|
||||
|
|
@ -436,7 +425,7 @@ main(int argc, char **argv)
|
|||
|
||||
if(convM2S(r->buf, n, &r->work) != n)
|
||||
fatal("convM2S format error");
|
||||
DEBUG(DFD, "%F\n", &r->work);
|
||||
DEBUG(2, "%F\n", &r->work);
|
||||
(fcalls[r->work.type])(r);
|
||||
}
|
||||
io();
|
||||
|
|
|
|||
|
|
@ -42,7 +42,7 @@ exclusions(void)
|
|||
if(include == nil)
|
||||
fatal("out of memory");
|
||||
}
|
||||
DEBUG(DFD, "\tinclude %s\n", line+2);
|
||||
DEBUG(2, "\tinclude %s\n", line+2);
|
||||
include[ni] = regcomp(line+2);
|
||||
include[++ni] = nil;
|
||||
break;
|
||||
|
|
@ -53,12 +53,12 @@ exclusions(void)
|
|||
if(exclude == nil)
|
||||
fatal("out of memory");
|
||||
}
|
||||
DEBUG(DFD, "\texclude %s\n", line+2);
|
||||
DEBUG(2, "\texclude %s\n", line+2);
|
||||
exclude[ne] = regcomp(line+2);
|
||||
exclude[++ne] = nil;
|
||||
break;
|
||||
default:
|
||||
DEBUG(DFD, "ignoring pattern %s\n", line);
|
||||
DEBUG(2, "ignoring pattern %s\n", line);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
|
@ -76,16 +76,16 @@ excludefile(char *path)
|
|||
else
|
||||
p = path+1;
|
||||
|
||||
DEBUG(DFD, "checking %s\n", p);
|
||||
DEBUG(2, "checking %s\n", p);
|
||||
for(re = include; *re != nil; re++){
|
||||
if(regexec(*re, p, nil, 0) != 1){
|
||||
DEBUG(DFD, "excluded+ %s\n", p);
|
||||
DEBUG(2, "excluded+ %s\n", p);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
for(re = exclude; *re != nil; re++){
|
||||
if(regexec(*re, p, nil, 0) == 1){
|
||||
DEBUG(DFD, "excluded- %s\n", p);
|
||||
DEBUG(2, "excluded- %s\n", p);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
|
@ -98,7 +98,7 @@ preaddir(Fid *f, uchar *data, int n, vlong offset)
|
|||
int r = 0, m;
|
||||
Dir *d;
|
||||
|
||||
DEBUG(DFD, "\tpreaddir n=%d wo=%lld fo=%lld\n", n, offset, f->offset);
|
||||
DEBUG(2, "\tpreaddir n=%d wo=%lld fo=%lld\n", n, offset, f->offset);
|
||||
if(offset == 0 && f->offset != 0){
|
||||
if(seek(f->fid, 0, 0) != 0)
|
||||
return -1;
|
||||
|
|
@ -128,9 +128,9 @@ preaddir(Fid *f, uchar *data, int n, vlong offset)
|
|||
free(p);
|
||||
}
|
||||
m = convD2M(d, data, n);
|
||||
DEBUG(DFD, "\t\tconvD2M %d\n", m);
|
||||
DEBUG(2, "\t\tconvD2M %d\n", m);
|
||||
if(m <= BIT16SZ){
|
||||
DEBUG(DFD, "\t\t\tneeded %d\n", GBIT16(data));
|
||||
DEBUG(2, "\t\t\tneeded %d\n", GBIT16(data));
|
||||
/* not enough room for full entry; leave for next time */
|
||||
f->cdir--;
|
||||
return r;
|
||||
|
|
|
|||
|
|
@ -6,7 +6,6 @@
|
|||
#include <auth.h>
|
||||
#include <fcall.h>
|
||||
|
||||
#define DEBUGFILE "iostats.out"
|
||||
#define DONESTR "done"
|
||||
|
||||
enum{
|
||||
|
|
@ -250,7 +249,7 @@ rio(Fcall *fin, Fcall *fout)
|
|||
void
|
||||
usage(void)
|
||||
{
|
||||
fprint(2, "usage: iostats [-dC] [-f debugfile] cmds [args ...]\n");
|
||||
fprint(2, "usage: iostats [-dC] cmds [args ...]\n");
|
||||
exits("usage");
|
||||
}
|
||||
|
||||
|
|
@ -259,7 +258,6 @@ main(int argc, char **argv)
|
|||
{
|
||||
Rpc *rpc;
|
||||
ulong ttime;
|
||||
char *dbfile;
|
||||
char buf[64*1024];
|
||||
float brpsec, bwpsec, bppsec;
|
||||
int cpid, fspid, expid, rspid, dbg, n, mflag;
|
||||
|
|
@ -270,15 +268,11 @@ main(int argc, char **argv)
|
|||
|
||||
dbg = 0;
|
||||
mflag = MREPL;
|
||||
dbfile = DEBUGFILE;
|
||||
|
||||
ARGBEGIN{
|
||||
case 'd':
|
||||
dbg++;
|
||||
break;
|
||||
case 'f':
|
||||
dbfile = ARGF();
|
||||
break;
|
||||
case 'C':
|
||||
mflag |= MCACHE;
|
||||
break;
|
||||
|
|
@ -286,8 +280,6 @@ main(int argc, char **argv)
|
|||
usage();
|
||||
}ARGEND
|
||||
|
||||
USED(dbfile);
|
||||
|
||||
if(argc == 0)
|
||||
usage();
|
||||
|
||||
|
|
@ -359,7 +351,7 @@ main(int argc, char **argv)
|
|||
close(efd[1]);
|
||||
close(pfd[1]);
|
||||
if(dbg){
|
||||
execl("/bin/exportfs", "exportfs", "-df", dbfile, "-r", "/", nil);
|
||||
execl("/bin/exportfs", "exportfs", "-d", "-r", "/", nil);
|
||||
} else {
|
||||
execl("/bin/exportfs", "exportfs", "-r", "/", nil);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue