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btrfs-progs: receive: use static buffer for mount point option argument

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Signed-off-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
David Sterba 2015-06-12 15:58:55 +02:00
parent 6bfa3cae05
commit 210bd3a693
1 changed files with 8 additions and 7 deletions
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15
cmds-receive.c
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@ -939,7 +939,7 @@ static int do_receive(struct btrfs_receive *r, const char *tomnt,
goto out;
}
if (realmnt) {
if (realmnt[0]) {
r->root_path = realmnt;
} else {
ret = find_mount_root(dest_dir_full_path, &r->root_path);
@ -1097,7 +1097,7 @@ int cmd_receive(int argc, char **argv)
{
char *tomnt = NULL;
char *fromfile = NULL;
char *realmnt = NULL;
char realmnt[PATH_MAX];
struct btrfs_receive r;
int receive_fd = fileno(stdin);
u64 max_errors = 1;
@ -1108,6 +1108,7 @@ int cmd_receive(int argc, char **argv)
r.write_fd = -1;
r.dest_dir_fd = -1;
r.dest_dir_chroot = 0;
realmnt[0] = 0;
while (1) {
int c;
@ -1138,10 +1139,11 @@ int cmd_receive(int argc, char **argv)
max_errors = arg_strtou64(optarg);
break;
case 'm':
free(realmnt);
realmnt = strdup(optarg);
if (!realmnt) {
fprintf(stderr, "ERROR: couldn't allocate realmnt.\n");
if (arg_copy_path(realmnt, optarg, sizeof(realmnt))) {
fprintf(stderr,
"ERROR: mount point path too long (%zu)\n",
strlen(optarg));
ret = 1;
goto out;
}
break;
@ -1168,7 +1170,6 @@ int cmd_receive(int argc, char **argv)
ret = do_receive(&r, tomnt, realmnt, receive_fd, max_errors);
out:
free(realmnt);
return !!ret;
}