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Add support for specifying the partition to resize via -b startsec

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(similar to label and other subcommands). Do not fully add gpt_find
functionality here, as resizing multiple partitions in one go does not
make sense.
This commit is contained in:
martin 2019-03-24 13:31:00 +00:00
parent 46e1422377
commit f2b09ed0f6
2 changed files with 23 additions and 8 deletions
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6
sbin/gpt/gpt.8
View File

@ -1,4 +1,4 @@
.\" $NetBSD: gpt.8,v 1.63 2018/05/01 21:16:02 kre Exp $
.\" $NetBSD: gpt.8,v 1.64 2019/03/24 13:31:00 martin Exp $
.\"
.\" Copyright (c) 2002 Marcel Moolenaar
.\" All rights reserved.
@ -26,7 +26,7 @@
.\"
.\" $FreeBSD: src/sbin/gpt/gpt.8,v 1.17 2006/06/22 22:22:32 marcel Exp $
.\"
.Dd May 1, 2018
.Dd March 24, 2019
.Dt GPT 8
.Os
.Sh NAME
@ -466,7 +466,7 @@ See above for a description of these options.
Partitions are removed by clearing the partition type.
No other information is changed.
.\" ==== resize ====
.It Nm Ic resize Fl i Ar index Oo Fl a Ar alignment Oc \
.It Nm Ic resize [ Fl i Ar index | Fl b Ar startsec ] Oo Fl a Ar alignment Oc \
Oo Fl s Ar size Oc
The
.Ic resize

25
sbin/gpt/resize.c
View File

@ -33,7 +33,7 @@
__FBSDID("$FreeBSD: src/sbin/gpt/add.c,v 1.14 2006/06/22 22:05:28 marcel Exp $");
#endif
#ifdef __RCSID
__RCSID("$NetBSD: resize.c,v 1.23 2018/07/03 03:41:24 jnemeth Exp $");
__RCSID("$NetBSD: resize.c,v 1.24 2019/03/24 13:31:00 martin Exp $");
#endif
#include <sys/types.h>
@ -52,7 +52,7 @@ __RCSID("$NetBSD: resize.c,v 1.23 2018/07/03 03:41:24 jnemeth Exp $");
static int cmd_resize(gpt_t, int, char *[]);
static const char *resizehelp[] = {
"-i index [-a alignment] [-s size]",
"[-i index | -b blocknr] [-a alignment] [-s size]",
};
struct gpt_cmd c_resize = {
@ -131,17 +131,32 @@ static int
cmd_resize(gpt_t gpt, int argc, char *argv[])
{
int ch;
off_t alignment = 0, sectors, size = 0;
off_t alignment = 0, sectors, start = 0, size = 0;
unsigned int entry = 0;
map_t m;
while ((ch = getopt(argc, argv, GPT_AIS)) != -1) {
if (gpt_add_ais(gpt, &alignment, &entry, &size, ch) == -1)
while ((ch = getopt(argc, argv, GPT_AIS "b:")) != -1) {
if (ch == 'b')
gpt_human_get(gpt, &start);
else if (gpt_add_ais(gpt, &alignment, &entry, &size, ch) == -1)
return usage();
}
if (argc != optind)
return usage();
if (start > 0) {
for (m = map_first(gpt); m != NULL; m = m->map_next) {
if (m->map_type != MAP_TYPE_GPT_PART ||
m->map_index < 1)
continue;
if (start != m->map_start)
continue;
entry = m->map_index;
break;
}
}
if ((sectors = gpt_check_ais(gpt, alignment, entry, size)) == -1)
return -1;