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btrfs-progs: send: use static buffer for output file name 

Signed-off-by: David Sterba <dsterba@suse.cz>
master
David Sterba 2015-06-12 16:42:41 +02:00
parent a245463281
commit d304cf1a2d
1 changed files with 10 additions and 3 deletions
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13
cmds-send.c
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@ -427,7 +427,7 @@ int cmd_send(int argc, char **argv)
{
char *subvol = NULL;
int ret;
char *outname = NULL;
char outname[PATH_MAX];
struct btrfs_send send;
u32 i;
char *mount_root = NULL;
@ -440,6 +440,7 @@ int cmd_send(int argc, char **argv)
memset(&send, 0, sizeof(send));
send.dump_fd = fileno(stdout);
outname[0] = 0;
while (1) {
enum { GETOPT_VAL_SEND_NO_DATA = 256 };
@ -507,7 +508,13 @@ int cmd_send(int argc, char **argv)
full_send = 0;
break;
case 'f':
outname = optarg;
if (arg_copy_path(outname, optarg, sizeof(outname))) {
fprintf(stderr,
"ERROR: output file path too long (%zu)\n",
strlen(optarg));
ret = 1;
goto out;
}
break;
case 'p':
if (snapshot_parent) {
@ -555,7 +562,7 @@ int cmd_send(int argc, char **argv)
if (check_argc_min(argc - optind, 1))
usage(cmd_send_usage);
if (outname != NULL) {
if (outname[0]) {
send.dump_fd = creat(outname, 0600);
if (send.dump_fd == -1) {
ret = -errno;