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NTLM single-sign on adjustments (III)

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Provide some error tracing and fix execl() calling.
This commit is contained in:
Yang Tse 2011-07-27 19:12:06 +02:00
parent 6ac4eeab2f
commit 4eb08ac1c0
1 changed files with 62 additions and 15 deletions
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77
lib/http_ntlm.c
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@ -55,6 +55,7 @@
#include "curl_base64.h"
#include "http_ntlm.h"
#include "url.h"
#include "strerror.h"
#include "curl_gethostname.h"
#include "curl_memory.h"
@ -718,6 +719,8 @@ static CURLcode sso_ntlm_initiate(struct connectdata *conn,
const char *username;
char *slash, *domain = NULL;
const char *ntlm_auth = NULL;
char *ntlm_auth_alloc = NULL;
int error;
/* Return if communication with ntlm_auth already set up */
if(conn->fd_helper != -1 || conn->pid) {
@ -739,33 +742,76 @@ static CURLcode sso_ntlm_initiate(struct connectdata *conn,
* which only accept commands and output strings pre-written/saved in
* test case 2005 */
#ifdef DEBUGBUILD
ntlm_auth=getenv("NTLM_AUTH");
ntlm_auth_alloc = curl_getenv("NTLM_AUTH");
if(ntlm_auth_alloc)
ntlm_auth = ntlm_auth_alloc;
else
#endif
if(!ntlm_auth)
ntlm_auth = NTLM_AUTH;
if(access(ntlm_auth, X_OK) != 0)
if(access(ntlm_auth, X_OK) != 0) {
error = ERRNO;
failf(conn->data, "Could not access ntlm_auth: %s errno %d: %s",
ntlm_auth, error, Curl_strerror(conn, error));
goto done;
}
if(socketpair(AF_UNIX, SOCK_STREAM, 0, sockfds))
if(socketpair(AF_UNIX, SOCK_STREAM, 0, sockfds)) {
error = ERRNO;
failf(conn->data, "Could not open socket pair. errno %d: %s",
error, Curl_strerror(conn, error));
goto done;
}
pid = fork();
if(!pid) {
/* child process */
if(dup2(sockfds[1], 0) == -1 || dup2(sockfds[1], 1) == -1)
exit(1);
execl(ntlm_auth, "--helper-protocol", "ntlmssp-client-1",
"--use-cached-creds", "--username", username,
domain?"--domain":NULL, domain, NULL);
exit(1);
}
else if(pid == -1) {
if(pid == -1) {
error = ERRNO;
close(sockfds[0]);
close(sockfds[1]);
failf(conn->data, "Could not fork. errno %d: %s",
error, Curl_strerror(conn, error));
goto done;
}
else if(!pid) {
/*
* child process
*/
close(sockfds[0]);
if(dup2(sockfds[1], STDIN_FILENO) == -1) {
error = ERRNO;
failf(conn->data, "Could not redirect child stdin. errno %d: %s",
error, Curl_strerror(conn, error));
exit(1);
}
if(dup2(sockfds[1], STDOUT_FILENO) == -1) {
error = ERRNO;
failf(conn->data, "Could not redirect child stdout. errno %d: %s",
error, Curl_strerror(conn, error));
exit(1);
}
if(domain)
execl(ntlm_auth, ntlm_auth,
"--helper-protocol", "ntlmssp-client-1",
"--use-cached-creds",
"--username", username,
"--domain", domain,
NULL);
else
execl(ntlm_auth, ntlm_auth,
"--helper-protocol", "ntlmssp-client-1",
"--use-cached-creds",
"--username", username,
NULL);
error = ERRNO;
failf(conn->data, "Could not execl(). errno %d: %s",
error, Curl_strerror(conn, error));
exit(1);
}
close(sockfds[1]);
conn->fd_helper = sockfds[0];
@ -775,6 +821,7 @@ static CURLcode sso_ntlm_initiate(struct connectdata *conn,
done:
Curl_safefree(domain);
Curl_safefree(ntlm_auth_alloc);
return CURLE_REMOTE_ACCESS_DENIED;
}