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Introduce the posix-rename@openssh.com extension handling

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Changes done in sftp_rename such that it will use
posix-rename@openssh.com extension if supported
and send a SSH_FXP_EXTENDED request. If the
extension is not supported a normal SSH_FXP_RENAME
request will be sent.

Signed-off-by: Eshan Kelkar <eshankelkar@galorithm.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
This commit is contained in:
Eshan Kelkar
2023-04-21 02:51:17 +05:30
committed by Jakub Jelen
parent b067d7a123
commit ef901829c1
1 changed files with 46 additions and 19 deletions
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29
src/sftp.c
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@@ -2520,6 +2520,8 @@ int sftp_rename(sftp_session sftp, const char *original, const char *newname)
sftp_message msg = NULL;
ssh_buffer buffer = NULL;
uint32_t id;
const char *extension_name = "posix-rename@openssh.com";
int request_type;
int rc;
buffer = ssh_buffer_new();
@@ -2531,6 +2533,28 @@ int sftp_rename(sftp_session sftp, const char *original, const char *newname)
id = sftp_get_new_id(sftp);
/*
* posix-rename@openssh.com extension will be used
* if it is supported by sftp
*/
if (sftp_extension_supported(sftp,
extension_name,
"1")) {
rc = ssh_buffer_pack(buffer,
"dsss",
id,
extension_name,
original,
newname);
if (rc != SSH_OK) {
ssh_set_error_oom(sftp->session);
SSH_BUFFER_FREE(buffer);
sftp_set_error(sftp, SSH_FX_FAILURE);
return -1;
}
request_type = SSH_FXP_EXTENDED;
} else {
rc = ssh_buffer_pack(buffer,
"dss",
id,
@@ -2551,7 +2575,10 @@ int sftp_rename(sftp_session sftp, const char *original, const char *newname)
ssh_buffer_add_u32(buffer, SSH_FXF_RENAME_OVERWRITE);
}
rc = sftp_packet_write(sftp, SSH_FXP_RENAME, buffer);
request_type = SSH_FXP_RENAME;
}
rc = sftp_packet_write(sftp, request_type, buffer);
SSH_BUFFER_FREE(buffer);
if (rc < 0) {
return -1;