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sftp_aio.c, sftp.h: Add capping to the sftp aio read API

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Signed-off-by: Eshan Kelkar <eshankelkar@galorithm.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
This commit is contained in:
Eshan Kelkar
2023-12-07 10:16:48 +05:30
committed by Jakub Jelen
parent d2d5e717f3
commit 91990f9dfa
2 changed files with 22 additions and 8 deletions
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9
src/sftp_aio.c
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@@ -50,7 +50,7 @@ void sftp_aio_free(sftp_aio aio)
SAFE_FREE(aio);
}
int sftp_aio_begin_read(sftp_file file, size_t len, sftp_aio *aio)
ssize_t sftp_aio_begin_read(sftp_file file, size_t len, sftp_aio *aio)
{
sftp_session sftp = NULL;
ssh_buffer buffer = NULL;
@@ -73,6 +73,11 @@ int sftp_aio_begin_read(sftp_file file, size_t len, sftp_aio *aio)
return SSH_ERROR;
}
/* Apply a cap on the length a user is allowed to read */
if (len > sftp->limits->max_read_length) {
len = sftp->limits->max_read_length;
}
if (aio == NULL) {
ssh_set_error(sftp->session, SSH_FATAL,
"Invalid argument, NULL passed instead of a pointer to "
@@ -126,7 +131,7 @@ int sftp_aio_begin_read(sftp_file file, size_t len, sftp_aio *aio)
/* Assume we read len bytes from the file */
file->offset += len;
*aio = aio_handle;
return SSH_OK;
return len;
}
ssize_t sftp_aio_wait_read(sftp_aio *aio,