mount_msdosfs: do not fail mounts requiring locale name conversion table

that is already present in a kernel statically.

For example, the command "mount_msdosfs -L ru_RU.KOI8-R" fails with error
"mount_msdosfs: msdosfs_iconv: File exists" for a kernel having
options LIBICONV and MSDOSFS_ICONV. After this change, it mounts successfully.

MFC after:		1 month
Differential Revision:	https://reviews.freebsd.org/D16951
This commit is contained in:
eugen 2018-10-27 16:41:34 +00:00
parent f8a3770ab6
commit a7019687ee

View File

@ -46,6 +46,7 @@ static const char rcsid[] =
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <grp.h>
#include <locale.h>
#include <pwd.h>
@ -308,17 +309,17 @@ set_charset(struct iovec **iov, int *iovlen, const char *cs_local, const char *c
build_iovec_argf(iov, iovlen, "cs_win", ENCODING_UNICODE);
error = kiconv_add_xlat16_cspairs(ENCODING_UNICODE, cs_local);
if (error)
if (error && errno != EEXIST)
return (-1);
if (cs_dos != NULL) {
error = kiconv_add_xlat16_cspairs(cs_dos, cs_local);
if (error)
if (error && errno != EEXIST)
return (-1);
} else {
build_iovec_argf(iov, iovlen, "cs_dos", cs_local);
error = kiconv_add_xlat16_cspair(cs_local, cs_local,
KICONV_FROM_UPPER | KICONV_LOWER);
if (error)
if (error && errno != EEXIST)
return (-1);
}