Author: eadler
Date: Wed Mar 18 05:48:05 2015
New Revision: 280206
URL: https://svnweb.freebsd.org/changeset/base/280206
Log:
Implement pax -O option to permit limiting a PAX archive to a single volume.
-O Force the archive to be one volume. If a volume ends prematurely, pax will
not prompt for a new volume.
PR: 198481
Submitted by: Sevan Janiyan
Reviewed by: allanjude (doc)
Modified:
head/bin/pax/ar_io.c
head/bin/pax/extern.h
head/bin/pax/options.c
head/bin/pax/pax.1
head/bin/pax/pax.c
Modified: head/bin/pax/ar_io.c
==============================================================================
--- head/bin/pax/ar_io.c Wed Mar 18 05:25:38 2015 (r280205)
+++ head/bin/pax/ar_io.c Wed Mar 18 05:48:05 2015 (r280206)
@@ -82,7 +82,7 @@ static int wr_trail = 1; /* trailer was
static int can_unlnk = 0; /* do we unlink null archives? */
const char *arcname; /* printable name of archive */
const char *gzip_program; /* name of gzip program */
-static pid_t zpid = -1; /* pid of child process */
+static pid_t zpid = -1; /* pid of child process */
static int get_phys(void);
static void ar_start_gzip(int, const char *, int);
@@ -1123,7 +1123,7 @@ ar_next(void)
if (sigprocmask(SIG_SETMASK, &o_mask, NULL) < 0)
syswarn(0, errno, "Unable to restore signal mask");
- if (done || !wr_trail || strcmp(NM_TAR, argv0) == 0)
+ if (done || !wr_trail || Oflag || strcmp(NM_TAR, argv0) == 0)
return(-1);
tty_prnt("\nATTENTION! %s archive volume change required.\n", argv0);
Modified: head/bin/pax/extern.h
==============================================================================
--- head/bin/pax/extern.h Wed Mar 18 05:25:38 2015 (r280205)
+++ head/bin/pax/extern.h Wed Mar 18 05:48:05 2015 (r280206)
@@ -217,6 +217,7 @@ extern int vflag;
extern int Dflag;
extern int Hflag;
extern int Lflag;
+extern int Oflag;
extern int Xflag;
extern int Yflag;
extern int Zflag;
Modified: head/bin/pax/options.c
==============================================================================
--- head/bin/pax/options.c Wed Mar 18 05:25:38 2015 (r280205)
+++ head/bin/pax/options.c Wed Mar 18 05:48:05 2015 (r280206)
@@ -194,7 +194,7 @@ pax_options(int argc, char **argv)
/*
* process option flags
*/
- while
((c=getopt(argc,argv,"ab:cdf:iklno:p:rs:tuvwx:zB:DE:G:HLPT:U:XYZ"))
+ while
((c=getopt(argc,argv,"ab:cdf:iklno:p:rs:tuvwx:zB:DE:G:HLOPT:U:XYZ"))
!= -1) {
switch (c) {
case 'a':
@@ -447,6 +447,12 @@ pax_options(int argc, char **argv)
Lflag = 1;
flg |= CLF;
break;
+ case 'O':
+ /*
+ * Force one volume. Non standard option.
+ */
+ Oflag = 1;
+ break;
case 'P':
/*
* do NOT follow symlinks (default)
@@ -584,7 +590,7 @@ tar_options(int argc, char **argv)
{
int c;
int fstdin = 0;
- int Oflag = 0;
+ int tar_Oflag = 0;
int nincfiles = 0;
int incfiles_max = 0;
struct incfile {
@@ -664,7 +670,7 @@ tar_options(int argc, char **argv)
if (opt_add("write_opt=nodir") < 0)
tar_usage();
case 'O':
- Oflag = 1;
+ tar_Oflag = 1;
break;
case 'p':
/*
@@ -820,8 +826,8 @@ tar_options(int argc, char **argv)
* (unless -o specified)
*/
if (act == ARCHIVE || act == APPND)
- frmt = &(fsub[Oflag ? F_OTAR : F_TAR]);
- else if (Oflag) {
+ frmt = &(fsub[tar_Oflag ? F_OTAR : F_TAR]);
+ else if (tar_Oflag) {
paxwarn(1, "The -O/-o options are only valid when writing an
archive");
tar_usage(); /* only valid when writing */
}
@@ -1526,25 +1532,25 @@ no_op(void)
void
pax_usage(void)
{
- (void)fputs("usage: pax [-cdnvz] [-E limit] [-f archive] ", stderr);
+ (void)fputs("usage: pax [-cdnOvz] [-E limit] [-f archive] ", stderr);
(void)fputs("[-s replstr] ... [-U user] ...", stderr);
(void)fputs("\n [-G group] ... ", stderr);
(void)fputs("[-T [from_date][,to_date]] ... ", stderr);
(void)fputs("[pattern ...]\n", stderr);
- (void)fputs(" pax -r [-cdiknuvzDYZ] [-E limit] ", stderr);
+ (void)fputs(" pax -r [-cdiknOuvzDYZ] [-E limit] ", stderr);
(void)fputs("[-f archive] [-o options] ... \n", stderr);
(void)fputs(" [-p string] ... [-s replstr] ... ", stderr);
(void)fputs("[-U user] ... [-G group] ...\n ", stderr);
(void)fputs("[-T [from_date][,to_date]] ... ", stderr);
(void)fputs(" [pattern ...]\n", stderr);
- (void)fputs(" pax -w [-dituvzHLPX] [-b blocksize] ", stderr);
+ (void)fputs(" pax -w [-dituvzHLOPX] [-b blocksize] ", stderr);
(void)fputs("[ [-a] [-f archive] ] [-x format] \n", stderr);
(void)fputs(" [-B bytes] [-s replstr] ... ", stderr);
(void)fputs("[-o options] ... [-U user] ...", stderr);
(void)fputs("\n [-G group] ... ", stderr);
(void)fputs("[-T [from_date][,to_date][/[c][m]]] ... ", stderr);
(void)fputs("[file ...]\n", stderr);
- (void)fputs(" pax -r -w [-diklntuvDHLPXYZ] ", stderr);
+ (void)fputs(" pax -r -w [-diklntuvDHLOPXYZ] ", stderr);
(void)fputs("[-p string] ... [-s replstr] ...", stderr);
(void)fputs("\n [-U user] ... [-G group] ... ", stderr);
(void)fputs("[-T [from_date][,to_date][/[c][m]]] ... ", stderr);
Modified: head/bin/pax/pax.1
==============================================================================
--- head/bin/pax/pax.1 Wed Mar 18 05:25:38 2015 (r280205)
+++ head/bin/pax/pax.1 Wed Mar 18 05:48:05 2015 (r280206)
@@ -33,7 +33,7 @@
.\" @(#)pax.1 8.4 (Berkeley) 4/18/94
.\" $FreeBSD$
.\"
-.Dd December 21, 2013
+.Dd March 17, 2015
.Dt PAX 1
.Os
.Sh NAME
@@ -41,7 +41,7 @@
.Nd read and write file archives and copy directory hierarchies
.Sh SYNOPSIS
.Nm
-.Op Fl cdnvz
+.Op Fl cdnvzO
.Bk -words
.Op Fl f Ar archive
.Ek
@@ -68,7 +68,7 @@
.Op Ar pattern ...\&
.Nm
.Fl r
-.Op Fl cdiknuvzDYZ
+.Op Fl cdiknuvzDOYZ
.Bk -words
.Op Fl f Ar archive
.Ek
@@ -104,7 +104,7 @@
.Op Ar pattern ...\&
.Nm
.Fl w
-.Op Fl dituvzHLPX
+.Op Fl dituvzHLOPX
.Bk -words
.Op Fl b Ar blocksize
.Ek
@@ -147,7 +147,7 @@
.Nm
.Fl r
.Fl w
-.Op Fl diklntuvDHLPXYZ
+.Op Fl diklntuvDHLOPXYZ
.Bk -words
.Op Fl p Ar string
.Ar ...\&
@@ -853,6 +853,13 @@ Follow only command line symbolic links
system traversal.
.It Fl L
Follow all symbolic links to perform a logical file system traversal.
+.It Fl O
+Force the archive to be one volume.
+If a volume ends prematurely,
+.Nm
+will not prompt for a new volume.
+This option can be useful for
+automated tasks where error recovery cannot be performed by a human.
.It Fl P
Do not follow symbolic links, perform a physical file system traversal.
This is the default mode.
@@ -1176,6 +1183,7 @@ The options
.Fl G ,
.Fl H ,
.Fl L ,
+.Fl O ,
.Fl P ,
.Fl T ,
.Fl U ,
Modified: head/bin/pax/pax.c
==============================================================================
--- head/bin/pax/pax.c Wed Mar 18 05:25:38 2015 (r280205)
+++ head/bin/pax/pax.c Wed Mar 18 05:48:05 2015 (r280206)
@@ -85,6 +85,7 @@ int vflag; /* produce verbose output *
int Dflag; /* same as uflag except inode change time */
int Hflag; /* follow command line symlinks (write only) */
int Lflag; /* follow symlinks when writing */
+int Oflag; /* limit to single volume */
int Xflag; /* archive files with same device id only */
int Yflag; /* same as Dflg except after name mode */
int Zflag; /* same as uflg except after name mode */
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