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SDB - Self-describing Bus
Commits
54f73072
Commit
54f73072
authored
May 02, 2013
by
Alessandro Rubini
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sdb-extract: support non-mmappable file (i.e. sysfs)
Signed-off-by:
Alessandro Rubini
<
rubini@gnudd.com
>
parent
3032d550
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sdb-extract.c
sdbfs/userspace/sdb-extract.c
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sdbfs/userspace/sdb-extract.c
View file @
54f73072
...
...
@@ -92,7 +92,7 @@ int main(int argc, char **argv)
void
*
mapaddr
;
char
*
fsname
,
*
dirname
;
struct
dirent
**
namelist
;
int
pagesize
=
getpagesize
();
int
i
,
pagesize
=
getpagesize
();
prgname
=
argv
[
0
];
...
...
@@ -127,9 +127,19 @@ int main(int argc, char **argv)
stbuf
.
st_size
&=
~
(
pagesize
-
1
);
mapaddr
=
mmap
(
0
,
stbuf
.
st_size
,
PROT_READ
,
MAP_PRIVATE
,
fileno
(
f
),
0
);
if
(
mapaddr
==
MAP_FAILED
)
{
fprintf
(
stderr
,
"%s: mmap(%s): %s
\n
"
,
prgname
,
fsname
,
strerror
(
errno
));
exit
(
1
);
/* I used to complain, but sysfs doesn't allow mmapping... */
mapaddr
=
malloc
(
stbuf
.
st_size
);
if
(
!
mapaddr
)
{
fprintf
(
stderr
,
"%s: out of memory reading
\"
%s
\"\n
"
,
argv
[
0
],
fsname
);
exit
(
1
);
}
i
=
fread
(
mapaddr
,
1
,
stbuf
.
st_size
,
f
);
if
(
i
<
stbuf
.
st_size
)
{
fprintf
(
stderr
,
"%s: %s: short read
\n
"
,
argv
[
0
],
fsname
);
exit
(
1
);
}
}
/* Check output dir is empty, open config file */
...
...
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