Mix/Src/pgptest.c

/* PGP module test */

/* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF
   ANY KIND, either express or implied. See the file COPYRIGHT for
   details. */

#include "mix3.h"
#include "pgp.h"
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <time.h>
#include <fcntl.h>
#ifdef POSIX
#include <unistd.h>
#include <termios.h>
#endif

int pass(BUFFER *b)
{
  char p[LINELEN];
  int fd;
  int n;

#ifdef HAVE_TERMIOS
  struct termios attr;
#endif

  fprintf(stderr, "enter passphrase: ");
  fflush(stderr);
#ifdef HAVE_TERMIOS
  fd = open("/dev/tty", O_RDONLY);
  if (tcgetattr(fd, &attr) != 0)
    return (-1);
  attr.c_lflag &= ~ECHO;
  attr.c_lflag |= ICANON;
  if (tcsetattr(fd, TCSAFLUSH, &attr) != 0)
    return (-1);
  n = read(fd, p, LINELEN);

  attr.c_lflag |= ECHO;
  if (tcsetattr(fd, TCSAFLUSH, &attr) != 0)
    return (-1);
  close(fd);
  p[n - 1] = 0;

#else
  fgets(p, LINELEN, stdin);
  if (p[strlen(p)-1]=='\n')
    p[strlen(p)-1] = 0;
#endif

  fprintf(stderr, "\n");
  buf_appends(b, p);
  return (0);
}

void usage(char *n)
{
  fprintf(stderr, "Usage: %s -e [-b] user@domain\n", n);
  fprintf(stderr, "       %s -s [-b] [yourname@domain]\n", n);
  fprintf(stderr, "       %s -c [-b]\n", n);
  fprintf(stderr, "       %s -d [passphrase]\n", n);
  fprintf(stderr, "       %s -g[r] yourname@domain [bits]\n", n);
  fprintf(stderr, "       %s -a[+-] [-b]\n\n", n);
  fprintf(stderr, "PGP public key ring: %s\n", PGPPUBRING);
  fprintf(stderr, "PGP secret key ring: %s\n", PGPSECRING);
}

int decrypt(BUFFER *u, BUFFER *option, char *n)
{
  BUFFER *v;
  BUFFER *sig;
  int err = 0;

  v = buf_new();
  sig = buf_new();

  buf_set(v, u);
  err = pgp_decrypt(v, NULL, sig, PGPPUBRING, PGPSECRING);
  if (err >= 0 || err == PGP_SIGBAD)
    buf_move(u, v);

  if (err == PGP_ERR) {
    pass(option);
    err = pgp_decrypt(u, option, sig, PGPPUBRING, PGPSECRING);
  }
  switch (err) {
  case PGP_NOMSG:
    fprintf(stderr, "%s: Not a PGP message.\n", n);
    break;
  case PGP_ERR:
    fprintf(stderr, "%s: Can't read message.\n", n);
    break;
  case PGP_SIGOK:
    fprintf(stderr, "%s: Valid signature: %s\n", n, sig->data);
    err = 0;
    break;
  case PGP_SIGNKEY:
    fprintf(stderr, "%s: Unknown signature key %s, cannot verify.\n", n, sig->data);
    err = 1;
    break;
  case PGP_SIGBAD:
    fprintf(stderr, "%s: Bad signature.\n", n);
    err = 1;
    break;
  }

  buf_free(v);
  buf_free(sig);

  return (err);
}

int main(int argc, char *argv[])
{
  BUFFER *u, *option, *pp;
  char *filename = NULL;
  char *cmd = NULL;
  int text = 1;
  int err = 99;
  int bits = 0;

  mix_init(NULL);
  VERBOSE = 3;

  u = buf_new();
  option = buf_new();
  pp = buf_new();

  if (argc > 1 && argv[1][0] == '-')
    cmd = argv[1];

  if (argc == 1 || (cmd > 0 && (cmd[1] == 'e' || cmd[1] == 'c' ||
                                cmd[1] == 'd' || cmd[1] == 'a' ||
                                cmd[1] == 's' || cmd[1] == 'C'))) {
    if ((argc > 2 && (cmd == NULL || cmd[1] == 'a')) || argc > 3) {
      FILE *f;

      f = fopen(argv[argc - 1], "rb");
      if (f == NULL) {
        fprintf(stderr, "%s: Can't open %s\n", argv[0], argv[argc - 1]);
        err = -1;
      } else {
        buf_read(u, f);
        fclose(f);
        filename = argv[argc - 1];
        argc--;
      }
    } else
      buf_read(u, stdin);
  }
  if (argc == 1)
    err = decrypt(u, option, argv[0]);

  if (argc > 2 && argv[2][0] == '-' && argv[2][1] == 'b') {
    text = 0;
    if (argc > 3)
      buf_appends(option, argv[3]);
  } else if (argc > 2)
    buf_appends(option, argv[2]);

  if (cmd)
    switch (cmd[1]) {
    case 's':
      err = pgp_encrypt(PGP_SIGN | (text ? PGP_TEXT : 0), u, NULL, option,
                        NULL, PGPPUBRING, PGPSECRING);
      if (err != 0) {
        pass(pp);
        err = pgp_encrypt(PGP_SIGN | (text ? PGP_TEXT : 0), u, NULL, option,
                          pp, PGPPUBRING, PGPSECRING);
      }
      if (err != 0)
        fprintf(stderr, "Error.\n");
      break;
    case 'e':
      if (option->length) {
        err = pgp_encrypt(PGP_ENCRYPT | (text ? PGP_TEXT : 0), u, option, NULL,
                          NULL, PGPPUBRING, PGPSECRING);
        if (err < 0)
          fprintf(stderr, "%s: can't encrypt message for %s\n",
                  argv[0], argv[2]);
      }
      break;
    case 'c':
      pass(option);
      err = pgp_encrypt(PGP_CONVENTIONAL | (text ? PGP_TEXT : 0), u, option,
                        NULL, NULL, PGPPUBRING, PGPSECRING);
      if (err < 0)
        fprintf(stderr, "%s: can't encrypt message\n", argv[0]);
      break;
    case 'C':
      pass(option);
      err = pgp_encrypt(PGP_NCONVENTIONAL | (text ? PGP_TEXT : 0), u, option,
                        NULL, NULL, PGPPUBRING, PGPSECRING);
      if (err < 0)
        fprintf(stderr, "%s: can't encrypt message\n", argv[0]);
      break;
    case 'g':
      if (argc < 3) {
        err = 99;
        goto end;
      }
      pass(pp);
      if (argc == 4)
        sscanf(argv[3], "%d", &bits);
      err = pgp_keygen(cmd[2] == 'r' ? PGP_ES_RSA : PGP_E_ELG,
                       bits, option, pp, PGPPUBRING, PGPSECRING, 0);
      break;
    case 'a':
      switch (cmd[2]) {
      case '-':
        err = pgp_dearmor(u, u);
        if (err == -1)
          fprintf(stderr, "Not a PGP-armored message\n");
        goto end;
      case '+':
        break;
      default:
        pgp_literal(u, filename, text);
        pgp_compress(u);
        break;
      }
      err = pgp_armor(u, PGP_ARMOR_NORMAL);
      break;
    case 'd':
      err = decrypt(u, option, argv[0]);
      break;
    }
end:
  if (err == 99)
    usage(argv[0]);

  if (err >= 0)
    buf_write(u, stdout);

  buf_free(option);
  buf_free(pp);
  buf_free(u);

  mix_exit();
  return (err == -1 ? 1 : err);
}
1	/* PGP module test */
2
3	/* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF
4	ANY KIND, either express or implied. See the file COPYRIGHT for
5	details. */
6
7	#include "mix3.h"
8	#include "pgp.h"
9	#include <stdlib.h>
10	#include <string.h>
11	#include <fcntl.h>
12	#include <assert.h>
13	#include <sys/types.h>
14	#include <sys/stat.h>
15	#include <time.h>
16	#include <fcntl.h>
17	#ifdef POSIX
18	#include <unistd.h>
19	#include <termios.h>
20	#endif
21
22	int pass(BUFFER *b)
23	{
24	char p[LINELEN];
25	int fd;
26	int n;
27
28	#ifdef HAVE_TERMIOS
29	struct termios attr;
30	#endif
31
32	fprintf(stderr, "enter passphrase: ");
33	fflush(stderr);
34	#ifdef HAVE_TERMIOS
35	fd = open("/dev/tty", O_RDONLY);
36	if (tcgetattr(fd, &attr) != 0)
37	return (-1);
38	attr.c_lflag &= ~ECHO;
39	attr.c_lflag \|= ICANON;
40	if (tcsetattr(fd, TCSAFLUSH, &attr) != 0)
41	return (-1);
42	n = read(fd, p, LINELEN);
43
44	attr.c_lflag \|= ECHO;
45	if (tcsetattr(fd, TCSAFLUSH, &attr) != 0)
46	return (-1);
47	close(fd);
48	p[n - 1] = 0;
49
50	#else
51	fgets(p, LINELEN, stdin);
52	if (p[strlen(p)-1]=='\n')
53	p[strlen(p)-1] = 0;
54	#endif
55
56	fprintf(stderr, "\n");
57	buf_appends(b, p);
58	return (0);
59	}
60
61	void usage(char *n)
62	{
63	fprintf(stderr, "Usage: %s -e [-b] user@domain\n", n);
64	fprintf(stderr, " %s -s [-b] [yourname@domain]\n", n);
65	fprintf(stderr, " %s -c [-b]\n", n);
66	fprintf(stderr, " %s -d [passphrase]\n", n);
67	fprintf(stderr, " %s -g[r] yourname@domain [bits]\n", n);
68	fprintf(stderr, " %s -a[+-] [-b]\n\n", n);
69	fprintf(stderr, "PGP public key ring: %s\n", PGPPUBRING);
70	fprintf(stderr, "PGP secret key ring: %s\n", PGPSECRING);
71	}
72
73	int decrypt(BUFFER u, BUFFER option, char *n)
74	{
75	BUFFER *v;
76	BUFFER *sig;
77	int err = 0;
78
79	v = buf_new();
80	sig = buf_new();
81
82	buf_set(v, u);
83	err = pgp_decrypt(v, NULL, sig, PGPPUBRING, PGPSECRING);
84	if (err >= 0 \|\| err == PGP_SIGBAD)
85	buf_move(u, v);
86
87	if (err == PGP_ERR) {
88	pass(option);
89	err = pgp_decrypt(u, option, sig, PGPPUBRING, PGPSECRING);
90	}
91	switch (err) {
92	case PGP_NOMSG:
93	fprintf(stderr, "%s: Not a PGP message.\n", n);
94	break;
95	case PGP_ERR:
96	fprintf(stderr, "%s: Can't read message.\n", n);
97	break;
98	case PGP_SIGOK:
99	fprintf(stderr, "%s: Valid signature: %s\n", n, sig->data);
100	err = 0;
101	break;
102	case PGP_SIGNKEY:
103	fprintf(stderr, "%s: Unknown signature key %s, cannot verify.\n", n, sig->data);
104	err = 1;
105	break;
106	case PGP_SIGBAD:
107	fprintf(stderr, "%s: Bad signature.\n", n);
108	err = 1;
109	break;
110	}
111
112	buf_free(v);
113	buf_free(sig);
114
115	return (err);
116	}
117
118	int main(int argc, char *argv[])
119	{
120	BUFFER u, option, *pp;
121	char *filename = NULL;
122	char *cmd = NULL;
123	int text = 1;
124	int err = 99;
125	int bits = 0;
126
127	mix_init(NULL);
128	VERBOSE = 3;
129
130	u = buf_new();
131	option = buf_new();
132	pp = buf_new();
133
134	if (argc > 1 && argv[1][0] == '-')
135	cmd = argv[1];
136
137	if (argc == 1 \|\| (cmd > 0 && (cmd[1] == 'e' \|\| cmd[1] == 'c' \|\|
138	cmd[1] == 'd' \|\| cmd[1] == 'a' \|\|
139	cmd[1] == 's' \|\| cmd[1] == 'C'))) {
140	if ((argc > 2 && (cmd == NULL \|\| cmd[1] == 'a')) \|\| argc > 3) {
141	FILE *f;
142
143	f = fopen(argv[argc - 1], "rb");
144	if (f == NULL) {
145	fprintf(stderr, "%s: Can't open %s\n", argv[0], argv[argc - 1]);
146	err = -1;
147	} else {
148	buf_read(u, f);
149	fclose(f);
150	filename = argv[argc - 1];
151	argc--;
152	}
153	} else
154	buf_read(u, stdin);
155	}
156	if (argc == 1)
157	err = decrypt(u, option, argv[0]);
158
159	if (argc > 2 && argv[2][0] == '-' && argv[2][1] == 'b') {
160	text = 0;
161	if (argc > 3)
162	buf_appends(option, argv[3]);
163	} else if (argc > 2)
164	buf_appends(option, argv[2]);
165
166	if (cmd)
167	switch (cmd[1]) {
168	case 's':
169	err = pgp_encrypt(PGP_SIGN \| (text ? PGP_TEXT : 0), u, NULL, option,
170	NULL, PGPPUBRING, PGPSECRING);
171	if (err != 0) {
172	pass(pp);
173	err = pgp_encrypt(PGP_SIGN \| (text ? PGP_TEXT : 0), u, NULL, option,
174	pp, PGPPUBRING, PGPSECRING);
175	}
176	if (err != 0)
177	fprintf(stderr, "Error.\n");
178	break;
179	case 'e':
180	if (option->length) {
181	err = pgp_encrypt(PGP_ENCRYPT \| (text ? PGP_TEXT : 0), u, option, NULL,
182	NULL, PGPPUBRING, PGPSECRING);
183	if (err < 0)
184	fprintf(stderr, "%s: can't encrypt message for %s\n",
185	argv[0], argv[2]);
186	}
187	break;
188	case 'c':
189	pass(option);
190	err = pgp_encrypt(PGP_CONVENTIONAL \| (text ? PGP_TEXT : 0), u, option,
191	NULL, NULL, PGPPUBRING, PGPSECRING);
192	if (err < 0)
193	fprintf(stderr, "%s: can't encrypt message\n", argv[0]);
194	break;
195	case 'C':
196	pass(option);
197	err = pgp_encrypt(PGP_NCONVENTIONAL \| (text ? PGP_TEXT : 0), u, option,
198	NULL, NULL, PGPPUBRING, PGPSECRING);
199	if (err < 0)
200	fprintf(stderr, "%s: can't encrypt message\n", argv[0]);
201	break;
202	case 'g':
203	if (argc < 3) {
204	err = 99;
205	goto end;
206	}
207	pass(pp);
208	if (argc == 4)
209	sscanf(argv[3], "%d", &bits);
210	err = pgp_keygen(cmd[2] == 'r' ? PGP_ES_RSA : PGP_E_ELG,
211	bits, option, pp, PGPPUBRING, PGPSECRING, 0);
212	break;
213	case 'a':
214	switch (cmd[2]) {
215	case '-':
216	err = pgp_dearmor(u, u);
217	if (err == -1)
218	fprintf(stderr, "Not a PGP-armored message\n");
219	goto end;
220	case '+':
221	break;
222	default:
223	pgp_literal(u, filename, text);
224	pgp_compress(u);
225	break;
226	}
227	err = pgp_armor(u, PGP_ARMOR_NORMAL);
228	break;
229	case 'd':
230	err = decrypt(u, option, argv[0]);
231	break;
232	}
233	end:
234	if (err == 99)
235	usage(argv[0]);
236
237	if (err >= 0)
238	buf_write(u, stdout);
239
240	buf_free(option);
241	buf_free(pp);
242	buf_free(u);
243
244	mix_exit();
245	return (err == -1 ? 1 : err);
246	}