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-rw-r--r--src/file.c71
-rw-r--r--src/file.h12
-rw-r--r--src/main.c6
-rw-r--r--src/ssh.c9
4 files changed, 58 insertions, 40 deletions
diff --git a/src/file.c b/src/file.c
index 26ea523..1907d23 100644
--- a/src/file.c
+++ b/src/file.c
@@ -135,7 +135,7 @@ int file_directory_exists(char *path, sftp_session sftp)
return ret;
}
-static struct file *file_alloc(char *path, size_t size, bool remote)
+static struct file *file_alloc(char *src_path, size_t size, bool src_is_remote)
{
struct file *f;
@@ -146,16 +146,16 @@ static struct file *file_alloc(char *path, size_t size, bool remote)
}
memset(f, 0, sizeof(*f));
- strncpy(f->path, path, PATH_MAX - 1);
+ strncpy(f->src_path, src_path, PATH_MAX - 1);
f->size = size;
- f->remote = remote;
- f->dst_remote = !remote;
+ f->src_is_remote = src_is_remote;
+ f->dst_is_remote = !src_is_remote;
lock_init(&f->lock);
return f;
}
-static bool file_should_skip(char *path)
+static bool check_file_should_skip(char *path)
{
int len = strlen(path);
if ((len == 1 && strncmp(path, ".", 1) == 0) ||
@@ -203,6 +203,15 @@ static int check_file_tobe_copied(char *path, sftp_session sftp, size_t *size)
return ret;
}
+static int check_pathlen(const char *src, const char *dst)
+{
+ if ((strlen(src) + strlen(dst) + 1) > PATH_MAX) {
+ pr_err("too long path: %s/%s\n", src, dst);
+ return -1;
+ }
+ return 0;
+}
+
static int file_fill_recursive(struct list_head *file_list,
bool dst_is_remote, sftp_session sftp, char *src_path,
char *rel_path, char *dst_path, bool dst_should_dir)
@@ -235,9 +244,9 @@ static int file_fill_recursive(struct list_head *file_list,
snprintf(f->dst_path, PATH_MAX, "%s%s", rel_path, dst_path);
list_add_tail(&f->list, file_list);
- pprint2("file %s %s -> %s %s\n",
- f->path, dst_is_remote ? "(local)" : "(remote)",
- f->dst_path, dst_is_remote ? "(remote)" : "(local)");
+ pprint2("file %s %s -> %s %s %luB\n",
+ f->src_path, strloc(f->src_is_remote),
+ f->dst_path, strloc(f->dst_is_remote), f->size);
return 0;
}
@@ -252,8 +261,11 @@ static int file_fill_recursive(struct list_head *file_list,
return -1;
}
while ((de = readdir(dir)) != NULL) {
- if (file_should_skip(de->d_name))
+ if (check_file_should_skip(de->d_name))
continue;
+ if (check_pathlen(src_path, de->d_name) < 0 ||
+ check_pathlen(rel_path, basename(src_path)) < 0)
+ return -1;
snprintf(next_src_path, sizeof(next_src_path),
"%s/%s", src_path, de->d_name);
snprintf(next_rel_path, sizeof(next_rel_path),
@@ -274,8 +286,11 @@ static int file_fill_recursive(struct list_head *file_list,
return -1;
}
while ((attr = sftp_readdir(sftp, dir)) != NULL) {
- if (file_should_skip(attr->name))
+ if (check_file_should_skip(attr->name))
continue;
+ if (check_pathlen(src_path, attr->name) < 0 ||
+ check_pathlen(rel_path, basename(src_path)) < 0)
+ return -1;
snprintf(next_src_path, sizeof(next_src_path),
"%s/%s", src_path, attr->name);
snprintf(next_rel_path, sizeof(next_rel_path),
@@ -380,8 +395,8 @@ void file_dump(struct list_head *file_list)
list_for_each_entry(f, file_list, list) {
pr_debug("%s %s -> %s %s %lu-byte\n",
- f->path, f->remote ? "(remote)" : "(local)",
- f->dst_path, f->dst_remote ? "(remote)" : "(local)",
+ f->src_path, strloc(f->src_is_remote),
+ f->dst_path, strloc(f->dst_is_remote),
f->size);
}
}
@@ -443,7 +458,7 @@ int chunk_fill(struct list_head *file_list, struct list_head *chunk_list,
chunk_sz = min_chunk_sz;
}
- pr_debug("%s chunk_sz %lu-byte\n", f->path, chunk_sz);
+ pr_debug("%s chunk_sz %lu-byte\n", f->src_path, chunk_sz);
for (size = f->size; size > 0;) {
c = chunk_alloc(f);
@@ -454,7 +469,7 @@ int chunk_fill(struct list_head *file_list, struct list_head *chunk_list,
size -= c->len;
list_add_tail(&c->list, chunk_list);
pprint4("chunk %s 0x%010lx-0x%010lx %luB\n",
- c->f->path, c->off, c->off + c->len, c->len);
+ c->f->src_path, c->off, c->off + c->len, c->len);
}
}
@@ -468,7 +483,7 @@ void chunk_dump(struct list_head *chunk_list)
list_for_each_entry(c, chunk_list, list) {
pr_debug("%s %s 0x%010lx-0x%010lx %lu-byte\n",
- c->f->path, c->f->remote ? "(remote)" : "(local)",
+ c->f->src_path, strloc(f->src_is_remote),
c->off, c->off + c->len, c->len);
}
}
@@ -497,12 +512,12 @@ int chunk_prepare(struct chunk *c, sftp_session sftp)
lock_acquire(&f->lock); /* XXX: is always acquiring lock per-chunk heavy? */
if (f->state == FILE_STATE_INIT) {
- if (file_dst_prepare(f, f->dst_remote ? sftp : NULL) < 0) {
+ if (file_dst_prepare(f, f->dst_is_remote ? sftp : NULL) < 0) {
ret = -1;
goto out;
}
f->state = FILE_STATE_OPENED;
- pprint2("copy start: %s\n", f->path);
+ pprint2("copy start: %s\n", f->src_path);
}
out:
@@ -649,7 +664,7 @@ static int chunk_copy_local_to_remote(struct chunk *c, sftp_session sftp,
flags = O_RDONLY;
mode = S_IRUSR;
- if ((fd = chunk_open_local(f->path, flags, mode, c->off)) < 0) {
+ if ((fd = chunk_open_local(f->src_path, flags, mode, c->off)) < 0) {
ret = -1;
goto out;
}
@@ -665,7 +680,7 @@ static int chunk_copy_local_to_remote(struct chunk *c, sftp_session sftp,
if (ret < 0)
goto out;
- if ((mode = chunk_get_mode(f->path, NULL)) < 0) {
+ if ((mode = chunk_get_mode(f->src_path, NULL)) < 0) {
ret = -1;
goto out;
}
@@ -701,7 +716,7 @@ static int chunk_copy_remote_to_local(struct chunk *c, sftp_session sftp,
flags = O_RDONLY;
mode = S_IRUSR;
- if (!(sf = chunk_open_remote(f->path, flags, mode, c->off, sftp))) {
+ if (!(sf = chunk_open_remote(f->src_path, flags, mode, c->off, sftp))) {
ret = -1;
goto out;
}
@@ -728,14 +743,14 @@ int chunk_copy(struct chunk *c, sftp_session sftp, size_t sftp_buf_sz, size_t io
int ret = 0;
pr_debug("copy %s %s -> %s %s off=0x%010lx\n",
- f->path, f->remote ? "(remote)" : "(local)",
- f->dst_path, f->dst_remote ? "(remote)" : "(local)", c->off);
+ f->src_path, strloc(f->src_is_remote),
+ f->dst_path, strloc(f->dst_is_remote), c->off);
pprint4("copy start: chunk %s 0x%010lx-0x%010lx %luB\n",
- c->f->path, c->off, c->off + c->len, c->len);
+ c->f->src_path, c->off, c->off + c->len, c->len);
- if (f->dst_remote)
+ if (f->dst_is_remote)
ret = chunk_copy_local_to_remote(c, sftp,
sftp_buf_sz, io_buf_sz, counter);
else
@@ -746,15 +761,15 @@ int chunk_copy(struct chunk *c, sftp_session sftp, size_t sftp_buf_sz, size_t io
return ret;
pr_debug("done %s %s -> %s %s off=0x%010lx\n",
- f->path, f->remote ? "(remote)" : "(local)",
- f->dst_path, f->dst_remote ? "(remote)" : "(local)", c->off);
+ f->src_path, strloc(f->src_is_remote),
+ f->dst_path, strloc(f->dst_is_remote), c->off);
pprint4("copy done: chunk %s 0x%010lx-0x%010lx %luB\n",
- c->f->path, c->off, c->off + c->len, c->len);
+ c->f->src_path, c->off, c->off + c->len, c->len);
if (refcnt_dec(&f->refcnt) == 0) {
f->state = FILE_STATE_DONE;
- pprint2("copy done: %s\n", f->path);
+ pprint2("copy done: %s\n", f->src_path);
}
diff --git a/src/file.h b/src/file.h
index 094057b..18318df 100644
--- a/src/file.h
+++ b/src/file.h
@@ -12,12 +12,12 @@
struct file {
struct list_head list; /* sscp->file_list */
- char path[PATH_MAX]; /* copy source path */
- bool remote; /* source is remote */
- size_t size; /* size of this file */
+ char src_path[PATH_MAX]; /* copy source path */
+ bool src_is_remote; /* source is remote */
+ size_t size; /* size of this file */
- char dst_path[PATH_MAX]; /* copy destination path */
- bool dst_remote; /* destination is remote */
+ char dst_path[PATH_MAX]; /* copy destination path */
+ bool dst_is_remote; /* destination is remote */
int state; /* destination file state */
lock lock; /* mutex to protect state */
@@ -27,6 +27,8 @@ struct file {
#define FILE_STATE_OPENED 1
#define FILE_STATE_DONE 2
+#define strloc(is_remote) is_remote ? "(remote)" : "(local)"
+
/* Allocating chunk increments refcnt of the associating file.
* Multiple threads copying files follows:
*
diff --git a/src/main.c b/src/main.c
index e8bf8b4..70534f0 100644
--- a/src/main.c
+++ b/src/main.c
@@ -425,9 +425,9 @@ static void print_progress_bar(double percent, char *suffix)
struct winsize ws;
char buf[128];
-/*
- * [=======> ] XX.X% SUFFIX
- */
+ /*
+ * [=======> ] XX.X% SUFFIX
+ */
buf[0] = '\0';
diff --git a/src/ssh.c b/src/ssh.c
index 65d6e0c..c5c53be 100644
--- a/src/ssh.c
+++ b/src/ssh.c
@@ -55,7 +55,7 @@ static int ssh_authenticate(ssh_session ssh, struct ssh_opts *opts)
int auth_bit_mask;
int ret;
-/* none method */
+ /* none method */
ret = ssh_userauth_none(ssh, NULL);
if (ret == SSH_AUTH_SUCCESS)
return 0;
@@ -178,12 +178,12 @@ static int ssh_verify_known_hosts(ssh_session session)
state = ssh_session_is_known_server(session);
switch (state) {
case SSH_KNOWN_HOSTS_OK:
-/* OK */
+ /* OK */
break;
case SSH_KNOWN_HOSTS_CHANGED:
fprintf(stderr, "Host key for server changed: it is now:\n");
-//ssh_print_hexa("Public key hash", hash, hlen);
+ //ssh_print_hexa("Public key hash", hash, hlen);
fprintf(stderr, "For security reasons, connection will be stopped\n");
ssh_clean_pubkey_hash(&hash);
@@ -201,12 +201,13 @@ static int ssh_verify_known_hosts(ssh_session session)
fprintf(stderr, "If you accept the host key here, the file will be"
"automatically created.\n");
-/* FALL THROUGH to SSH_SERVER_NOT_KNOWN behavior */
+ /* FALL THROUGH to SSH_SERVER_NOT_KNOWN behavior */
case SSH_KNOWN_HOSTS_UNKNOWN:
hexa = ssh_get_hexa(hash, hlen);
fprintf(stderr,"The server is unknown. Do you trust the host key?\n");
fprintf(stderr, "Public key hash: %s\n", hexa);
+ fprintf(stderr, "(yes/no): ");
ssh_string_free_char(hexa);
ssh_clean_pubkey_hash(&hash);
p = fgets(buf, sizeof(buf), stdin);
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-27 07:40:17 +0000