* Makefile.in: Add changepw.c, prompter.c

	* changepw.c: New file; Cygnus password changing protocol.

	* locate_kdc.c: Add parameter to indicate master KDC.

	* os-proto.h: Reflect changes to locate_kdc.

	* prompter.c: New file; Cygnus initial creds.

	* sendto_kdc.c: Add parameter to indicate master KDC.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@10322 dc483132-0cff-0310-8789-dd5450dbe970

1 files changed, 128 insertions, 0 deletions

diff --git a/src/lib/krb5/os/prompter.c b/src/lib/krb5/os/prompter.c
new file mode 100644
index 0000000000..10f9d541b3
--- /dev/null
+++ b/src/lib/krb5/os/prompter.c
@@ -0,0 +1,128 @@
+#include "k5-int.h"
+#if !defined(_MSDOS) && (!defined(_WIN32) || (defined(_WIN32) && defined(__CYGWIN32__))) && !defined(_MACINTOSH)
+#include <stdio.h>
+#include <errno.h>
+#include <signal.h>
+#include <setjmp.h>
+#ifdef __vxworks
+#define ECHO_PASSWORD
+#endif
+
+#ifndef ECHO_PASSWORD
+#include <termios.h>
+#endif /* ECHO_PASSWORD */
+
+static jmp_buf pwd_jump;
+
+static krb5_sigtype
+intr_routine(signo)
+    int signo;
+{
+    longjmp(pwd_jump, 1);
+    /*NOTREACHED*/
+}
+
+KRB5_DLLIMP krb5_error_code KRB5_CALLCONV
+krb5_prompter_posix(krb5_context context,
+		    void *data,
+		    const char *banner,
+		    int num_prompts,
+		    krb5_prompt prompts[])
+{
+    /* adapted from Kerberos v5 krb5_read_password() */
+
+    register char *ptr;
+    int scratchchar;
+    krb5_sigtype (*ointrfunc)();
+    krb5_error_code errcode;
+    int i;
+#ifndef ECHO_PASSWORD
+    struct termios echo_control, save_control;
+    int fd;
+#endif
+
+    if (banner) {
+       fputs(banner, stdout);
+       fputs("\n", stdout);
+    }
+
+    if (setjmp(pwd_jump)) {
+	errcode = KRB5_LIBOS_PWDINTR; 	/* we were interrupted... */
+	goto cleanup;
+    }
+    /* save intrfunc */
+    ointrfunc = signal(SIGINT, intr_routine);
+
+    for (i=0; i<num_prompts; i++) {
+#ifndef ECHO_PASSWORD
+	if (prompts[i].hidden) {
+	    /* get the file descriptor associated with stdin */
+	    fd = fileno(stdin);
+
+	    if (isatty(fd) == 1) {
+		if (tcgetattr(fd, &echo_control) == -1)
+		    return errno;
+
+		save_control = echo_control;
+		echo_control.c_lflag &= ~(ECHO|ECHONL);
+
+		if (tcsetattr(fd, TCSANOW, &echo_control) == -1)
+		    return errno;
+	    }
+	}
+#endif /* ECHO_PASSWORD */
+
+	/* put out the prompt */
+	(void) fputs(prompts[i].prompt,stdout);
+	(void) fputs(": ",stdout);
+	(void) fflush(stdout);
+	(void) memset(prompts[i].reply->data, 0, prompts[i].reply->length);
+
+	if (fgets(prompts[i].reply->data, prompts[i].reply->length, stdin)
+	    == NULL) {
+	    if (prompts[i].hidden)
+		(void) putchar('\n');
+	    errcode = KRB5_LIBOS_CANTREADPWD;
+	    goto cleanup;
+	}
+	if (prompts[i].hidden)
+	    (void) putchar('\n');
+	/* fgets always null-terminates the returned string */
+
+	/* replace newline with null */
+	if ((ptr = strchr(prompts[i].reply->data, '\n')))
+	    *ptr = '\0';
+	else /* flush rest of input line */
+	    do {
+		scratchchar = getchar();
+	    } while (scratchchar != EOF && scratchchar != '\n');
+    
+	prompts[i].reply->length = strlen(prompts[i].reply->data);
+
+#ifndef ECHO_PASSWORD
+	if (prompts[i].hidden && (isatty(fd) == 1))
+	    if ((tcsetattr(fd, TCSANOW, &save_control) == -1) &&
+		(errcode == 0))
+	        return errno;
+#endif
+    }
+
+    errcode = 0;
+
+cleanup:
+    (void) signal(SIGINT, ointrfunc);
+    return(errcode);
+}
+#else /* MSDOS */
+
+KRB5_DLLIMP krb5_error_code KRB5_CALLCONV
+krb5_prompter_posix(krb5_context context,
+				    void *data,
+				    const char *banner,
+				    int num_prompts,
+				    krb5_prompt prompts[])
+{
+   return(EINVAL);
+}
+#endif   /* !MSDOS */
+