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/*-
* Copyright © 2009, 2011
* mirabilos <m@mirbsd.org>
*
* Provided that these terms and disclaimer and all copyright notices
* are retained or reproduced in an accompanying document, permission
* is granted to deal in this work without restriction, including un‐
* limited rights to use, publicly perform, distribute, sell, modify,
* merge, give away, or sublicence.
*
* This work is provided “AS IS” and WITHOUT WARRANTY of any kind, to
* the utmost extent permitted by applicable law, neither express nor
* implied; without malicious intent or gross negligence. In no event
* may a licensor, author or contributor be held liable for indirect,
* direct, other damage, loss, or other issues arising in any way out
* of dealing in the work, even if advised of the possibility of such
* damage or existence of a defect, except proven that it results out
* of said person’s immediate fault when using the work as intended.
*/
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "kwalletcli.h"
const char __rcsid_main_c[] =
"$MirOS: contrib/hosted/tg/code/kwalletcli/main.c,v 1.12 2020/11/19 23:10:47 tg Exp $";
#define WOCTET_MASK (0x7FFFFF80)
#define WOCTET_VALUE (0x0000EF80)
#define iswoctet(wc) (((wc) & WOCTET_MASK) == WOCTET_VALUE)
int
main(int argc, char *argv[])
{
int ch, rv, quiet = 0;
const char *kw_folder = NULL, *kw_entry = NULL, *kw_pass = NULL, *fmts;
char *vers;
while ((ch = getopt(argc, argv, "e:f:hPp:qV")) != -1) {
switch (ch) {
case 'e':
kw_entry = optarg;
break;
case 'f':
kw_folder = optarg;
break;
case 'P': {
char *cp;
size_t n = 65536;
ssize_t cnt;
if ((kw_pass = cp = malloc(n--)) == NULL)
abort();
do {
cnt = read(STDIN_FILENO, cp, n);
if (cnt == -1) {
if (errno == EINTR)
continue;
break;
} else if (cnt == 0)
break;
n -= cnt;
cp += cnt;
} while (n);
*cp = '\0';
break;
}
case 'p':
kw_pass = optarg;
break;
case 'q':
quiet = 1;
break;
case 'V':
if (!quiet)
fprintf(stderr, "%s\n%s\n%s\n",
__rcsid_main_c, __rcsid_kwif,
KWALLETCLI_H);
return (0);
case 'h':
default:
usage:
fprintf(stderr, "Usage: kwalletcli -f folder"
" -e entry [-P | -p writepassword]\n");
return (2);
}
}
if ((argc - optind) || !kw_folder || !kw_entry)
goto usage;
if (asprintf(&vers, "%s %s %s", __rcsid_main_c, __rcsid_kwif,
KWALLETCLI_H) == -1)
vers = NULL;
if (kw_pass) {
unsigned int wc;
size_t n;
char *dst, *cp;
const char *src = kw_pass;
/* recode kw_pass from binary/utf-8 to safe utf-8 */
if ((dst = cp = malloc(strlen(kw_pass) * 3 + 1)) == NULL)
abort();
do {
n = utf_8to32(src, &wc);
if (n == UTFCONV_ERROR || iswoctet(wc)) {
/* assert: 0x80 <= *src <= 0xFF */
wc = *((const unsigned char *)src);
wc |= WOCTET_VALUE;
n = 1;
}
src += n;
n = utf_32to8(dst, wc);
dst += n;
} while (wc);
kw_pass = cp;
}
if (quiet)
fclose(stderr);
rv = kw_io(kw_folder, kw_entry, &kw_pass, vers ? vers : "");
switch (rv) {
case KWE_OK_GET: {
unsigned int wc;
size_t n;
char *dst, *cp;
const char *src = kw_pass;
/* recode kw_pass from safe utf-8 to binary/utf-8 */
if ((dst = cp = malloc(strlen(kw_pass) + 1)) == NULL)
abort();
do {
n = utf_8to32(src, &wc);
if (n == UTFCONV_ERROR)
/* should never happen */
goto print_kw_pass;
src += n;
if (iswoctet(wc)) {
wc &= 0xFF;
*((unsigned char *)dst++) = wc;
} else {
n = utf_32to8(dst, wc);
dst += n;
}
} while (wc);
kw_pass = cp;
print_kw_pass:
printf("%s", kw_pass);
break;
}
case KWE_NOWALLET:
if (!quiet)
fprintf(stderr, "cannot open wallet\n");
break;
case KWE_NOFOLDER:
fmts = "folder '%s' does not exist\n";
if (0)
/* FALLTHROUGH */
case KWE_ERRFOLDER:
fmts = "cannot open folder '%s'\n";
if (!quiet)
fprintf(stderr, fmts, kw_folder);
break;
case KWE_NOENTRY:
fmts = "entry '%s' does not exist in folder '%s'\n";
if (0)
/* FALLTHROUGH */
case KWE_ERRENTRY:
fmts = "error reading entry '%s' from folder '%s'\n";
if (0)
/* FALLTHROUGH */
case KWE_ERR_SET:
fmts = "error writing entry '%s' to folder '%s'\n";
if (!quiet)
fprintf(stderr, fmts, kw_entry, kw_folder);
break;
case KWE_OK_SET:
rv = 0;
break;
case KWE_ABORT:
if (!quiet)
fprintf(stderr, "internal error\n");
/* FALLTHROUGH */
default:
fflush(NULL);
abort();
}
return (rv);
}
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