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Finish making SFTP fully non-blocking capable.

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Functions that return an "int", and friends, return LIBSSH2SFTP_EAGAIN.
Functions that return a structure return NULL and set the error to
LIBSSH2_ERROR_EAGAIN
This commit is contained in:
James Housley
2007-06-07 16:01:12 +00:00
parent d141ba49f3
commit 7d57222912
15 changed files with 665 additions and 721 deletions
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74
example/simple/sftpdir_nonblock.c
View File

@@ -1,5 +1,5 @@
/*
* $Id: sftpdir_nonblock.c,v 1.5 2007/06/06 12:34:09 jehousley Exp $
* $Id: sftpdir_nonblock.c,v 1.6 2007/06/07 16:01:14 jehousley Exp $
*
* Sample doing an SFTP directory listing.
*
@@ -101,10 +101,13 @@ int main(int argc, char *argv[])
if(!session)
return -1;
/* Since we have set non-blocking, tell libssh2 we are non-blocking */
libssh2_session_set_blocking(session, 0);
/* ... start it up. This will trade welcome banners, exchange keys,
* and setup crypto, compression, and MAC layers
*/
rc = libssh2_session_startup(session, sock);
while ((rc = libssh2_session_startup(session, sock)) == LIBSSH2_ERROR_EAGAIN);
if(rc) {
fprintf(stderr, "Failure establishing SSH session: %d\n", rc);
return -1;
@@ -122,42 +125,45 @@ int main(int argc, char *argv[])
}
printf("\n");
if (auth_pw) {
/* We could authenticate via password */
if (libssh2_userauth_password(session, username, password)) {
printf("Authentication by password failed.\n");
goto shutdown;
}
} else {
/* Or by public key */
if (libssh2_userauth_publickey_fromfile(session, username,
"/home/username/.ssh/id_rsa.pub",
"/home/username/.ssh/id_rsa",
password)) {
printf("\tAuthentication by public key failed\n");
goto shutdown;
}
}
if (auth_pw) {
/* We could authenticate via password */
while ((rc = libssh2_userauth_password(session, username, password)) == LIBSSH2CHANNEL_EAGAIN);
if (rc) {
fprintf(stderr, "Authentication by password failed.\n");
goto shutdown;
}
} else {
/* Or by public key */
while ((rc = libssh2_userauth_publickey_fromfile(session, username,
"/home/username/.ssh/id_rsa.pub",
"/home/username/.ssh/id_rsa",
password)) == LIBSSH2CHANNEL_EAGAIN);
if (rc) {
fprintf(stderr, "\tAuthentication by public key failed\n");
goto shutdown;
}
}
fprintf(stderr, "libssh2_sftp_init()!\n");
sftp_session = libssh2_sftp_init(session);
if (!sftp_session) {
fprintf(stderr, "Unable to init SFTP session\n");
goto shutdown;
}
/* Since we have set non-blocking, tell libssh2 we are non-blocking */
libssh2_session_set_blocking(session, 0);
do {
sftp_session = libssh2_sftp_init(session);
if ((!sftp_session) && (libssh2_session_last_errno(session) != LIBSSH2_ERROR_EAGAIN)) {
fprintf(stderr, "Unable to init SFTP session\n");
goto shutdown;
}
} while (!sftp_session);
fprintf(stderr, "libssh2_sftp_opendir()!\n");
/* Request a dir listing via SFTP */
sftp_handle = libssh2_sftp_opendir(sftp_session, sftppath);
if (!sftp_handle) {
do {
sftp_handle = libssh2_sftp_opendir(sftp_session, sftppath);
if ((!sftp_handle) && (libssh2_session_last_errno(session) != LIBSSH2_ERROR_EAGAIN)) {
fprintf(stderr, "Unable to open dir with SFTP\n");
goto shutdown;
}
goto shutdown;
}
} while (!sftp_handle);
fprintf(stderr, "libssh2_sftp_opendir() is done, now receive listing!\n");
do {
@@ -165,7 +171,7 @@ int main(int argc, char *argv[])
LIBSSH2_SFTP_ATTRIBUTES attrs;
/* loop until we fail */
while ((rc = libssh2_sftp_readdirnb(sftp_handle, mem, sizeof(mem), &attrs)) == LIBSSH2SFTP_EAGAIN) {
while ((rc = libssh2_sftp_readdir(sftp_handle, mem, sizeof(mem), &attrs)) == LIBSSH2SFTP_EAGAIN) {
;
}
if(rc > 0) {