vendor/heimdal/1.5

1 files changed, 217 insertions, 0 deletions

diff --git a/lib/hcrypto/ui.c b/lib/hcrypto/ui.c
new file mode 100644
index 000000000000..d0714fe6d553
--- /dev/null
+++ b/lib/hcrypto/ui.c
@@ -0,0 +1,217 @@
+/*
+ * Copyright (c) 1997 - 2000, 2005 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#ifdef HAVE_TERMIOS_H
+#include <termios.h>
+#endif
+#include <roken.h>
+
+#include <ui.h>
+#ifdef HAVE_CONIO_H
+#include <conio.h>
+#endif
+
+static sig_atomic_t intr_flag;
+
+static void
+intr(int sig)
+{
+    intr_flag++;
+}
+
+#ifdef HAVE_CONIO_H
+
+/*
+ * Windows does console slightly different then then unix case.
+ */
+
+static int
+read_string(const char *preprompt, const char *prompt,
+	    char *buf, size_t len, int echo)
+{
+    int of = 0;
+    int c;
+    char *p;
+    void (*oldsigintr)(int);
+
+    _cprintf("%s%s", preprompt, prompt);
+
+    oldsigintr = signal(SIGINT, intr);
+
+    p = buf;
+    while(intr_flag == 0){
+	c = ((echo)? _getche(): _getch());
+	if(c == '\n' || c == '\r')
+	    break;
+	if(of == 0)
+	    *p++ = c;
+	of = (p == buf + len);
+    }
+    if(of)
+	p--;
+    *p = 0;
+
+    if(echo == 0){
+	printf("\n");
+    }
+
+    signal(SIGINT, oldsigintr);
+
+    if(intr_flag)
+	return -2;
+    if(of)
+	return -1;
+    return 0;
+}
+
+#else /* !HAVE_CONIO_H */
+
+#ifndef NSIG
+#define NSIG 47
+#endif
+
+static int
+read_string(const char *preprompt, const char *prompt,
+	    char *buf, size_t len, int echo)
+{
+    struct sigaction sigs[NSIG];
+    int oksigs[NSIG];
+    struct sigaction sa;
+    FILE *tty;
+    int ret = 0;
+    int of = 0;
+    int i;
+    int c;
+    char *p;
+
+    struct termios t_new, t_old;
+
+    memset(&oksigs, 0, sizeof(oksigs));
+
+    memset(&sa, 0, sizeof(sa));
+    sa.sa_handler = intr;
+    sigemptyset(&sa.sa_mask);
+    sa.sa_flags = 0;
+    for(i = 1; i < sizeof(sigs) / sizeof(sigs[0]); i++)
+	if (i != SIGALRM)
+	    if (sigaction(i, &sa, &sigs[i]) == 0)
+		oksigs[i] = 1;
+
+    if((tty = fopen("/dev/tty", "r")) != NULL)
+	rk_cloexec_file(tty);
+    else
+	tty = stdin;
+
+    fprintf(stderr, "%s%s", preprompt, prompt);
+    fflush(stderr);
+
+    if(echo == 0){
+	tcgetattr(fileno(tty), &t_old);
+	memcpy(&t_new, &t_old, sizeof(t_new));
+	t_new.c_lflag &= ~ECHO;
+	tcsetattr(fileno(tty), TCSANOW, &t_new);
+    }
+    intr_flag = 0;
+    p = buf;
+    while(intr_flag == 0){
+	c = getc(tty);
+	if(c == EOF){
+	    if(!ferror(tty))
+		ret = 1;
+	    break;
+	}
+	if(c == '\n')
+	    break;
+	if(of == 0)
+	    *p++ = c;
+	of = (p == buf + len);
+    }
+    if(of)
+	p--;
+    *p = 0;
+
+    if(echo == 0){
+	fprintf(stderr, "\n");
+	tcsetattr(fileno(tty), TCSANOW, &t_old);
+    }
+
+    if(tty != stdin)
+	fclose(tty);
+
+    for(i = 1; i < sizeof(sigs) / sizeof(sigs[0]); i++)
+	if (oksigs[i])
+	    sigaction(i, &sigs[i], NULL);
+
+    if(ret)
+	return -3;
+    if(intr_flag)
+	return -2;
+    if(of)
+	return -1;
+    return 0;
+}
+
+#endif /* HAVE_CONIO_H */
+
+int
+UI_UTIL_read_pw_string(char *buf, int length, const char *prompt, int verify)
+{
+    int ret;
+
+    ret = read_string("", prompt, buf, length, 0);
+    if (ret)
+	return ret;
+
+    if (verify) {
+	char *buf2;
+	buf2 = malloc(length);
+	if (buf2 == NULL)
+	    return 1;
+
+	ret = read_string("Verify password - ", prompt, buf2, length, 0);
+	if (ret) {
+	    free(buf2);
+	    return ret;
+	}
+	if (strcmp(buf2, buf) != 0)
+	    ret = 1;
+	free(buf2);
+    }
+    return ret;
+}