version 1.91, 2002/01/18 18:14:17 |
version 1.104, 2003/05/11 16:56:48 |
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#include "readpass.h" |
#include "readpass.h" |
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#ifdef SMARTCARD |
#ifdef SMARTCARD |
#include <sectok.h> |
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#include <openssl/engine.h> |
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#include "scard.h" |
#include "scard.h" |
#endif |
#endif |
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char buf[1024]; |
char buf[1024]; |
char *name = NULL; |
char *name = NULL; |
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switch (key_type_from_name(key_type_name)) { |
if (key_type_name == NULL) |
case KEY_RSA1: |
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name = _PATH_SSH_CLIENT_IDENTITY; |
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break; |
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case KEY_DSA: |
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name = _PATH_SSH_CLIENT_ID_DSA; |
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break; |
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case KEY_RSA: |
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name = _PATH_SSH_CLIENT_ID_RSA; |
name = _PATH_SSH_CLIENT_ID_RSA; |
break; |
else |
default: |
switch (key_type_from_name(key_type_name)) { |
fprintf(stderr, "bad key type"); |
case KEY_RSA1: |
exit(1); |
name = _PATH_SSH_CLIENT_IDENTITY; |
break; |
break; |
} |
case KEY_DSA: |
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name = _PATH_SSH_CLIENT_ID_DSA; |
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break; |
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case KEY_RSA: |
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name = _PATH_SSH_CLIENT_ID_RSA; |
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break; |
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default: |
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fprintf(stderr, "bad key type"); |
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exit(1); |
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break; |
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} |
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snprintf(identity_file, sizeof(identity_file), "%s/%s", pw->pw_dir, name); |
snprintf(identity_file, sizeof(identity_file), "%s/%s", pw->pw_dir, name); |
fprintf(stderr, "%s (%s): ", prompt, identity_file); |
fprintf(stderr, "%s (%s): ", prompt, identity_file); |
fflush(stderr); |
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if (fgets(buf, sizeof(buf), stdin) == NULL) |
if (fgets(buf, sizeof(buf), stdin) == NULL) |
exit(1); |
exit(1); |
if (strchr(buf, '\n')) |
if (strchr(buf, '\n')) |
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} |
} |
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#define SSH_COM_PUBLIC_BEGIN "---- BEGIN SSH2 PUBLIC KEY ----" |
#define SSH_COM_PUBLIC_BEGIN "---- BEGIN SSH2 PUBLIC KEY ----" |
#define SSH_COM_PUBLIC_END "---- END SSH2 PUBLIC KEY ----" |
#define SSH_COM_PUBLIC_END "---- END SSH2 PUBLIC KEY ----" |
#define SSH_COM_PRIVATE_BEGIN "---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ----" |
#define SSH_COM_PRIVATE_BEGIN "---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ----" |
#define SSH_COM_PRIVATE_KEY_MAGIC 0x3f6ff9eb |
#define SSH_COM_PRIVATE_KEY_MAGIC 0x3f6ff9eb |
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do_convert_to_ssh2(struct passwd *pw) |
do_convert_to_ssh2(struct passwd *pw) |
{ |
{ |
Key *k; |
Key *k; |
int len; |
u_int len; |
u_char *blob; |
u_char *blob; |
struct stat st; |
struct stat st; |
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exit(1); |
exit(1); |
} |
} |
} |
} |
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if (k->type == KEY_RSA1) { |
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fprintf(stderr, "version 1 keys are not supported\n"); |
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exit(1); |
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} |
if (key_to_blob(k, &blob, &len) <= 0) { |
if (key_to_blob(k, &blob, &len) <= 0) { |
fprintf(stderr, "key_to_blob failed\n"); |
fprintf(stderr, "key_to_blob failed\n"); |
exit(1); |
exit(1); |
} |
} |
fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN); |
fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN); |
fprintf(stdout, |
fprintf(stdout, |
"Comment: \"%d-bit %s, converted from OpenSSH by %s@%s\"\n", |
"Comment: \"%u-bit %s, converted from OpenSSH by %s@%s\"\n", |
key_size(k), key_type(k), |
key_size(k), key_type(k), |
pw->pw_name, hostname); |
pw->pw_name, hostname); |
dump_base64(stdout, blob, len); |
dump_base64(stdout, blob, len); |
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} |
} |
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static Key * |
static Key * |
do_convert_private_ssh2_from_blob(u_char *blob, int blen) |
do_convert_private_ssh2_from_blob(u_char *blob, u_int blen) |
{ |
{ |
Buffer b; |
Buffer b; |
Key *key = NULL; |
Key *key = NULL; |
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{ |
{ |
Key *k; |
Key *k; |
int blen; |
int blen; |
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u_int len; |
char line[1024], *p; |
char line[1024], *p; |
u_char blob[8096]; |
u_char blob[8096]; |
char encoded[8096]; |
char encoded[8096]; |
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*p = '\0'; |
*p = '\0'; |
strlcat(encoded, line, sizeof(encoded)); |
strlcat(encoded, line, sizeof(encoded)); |
} |
} |
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len = strlen(encoded); |
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if (((len % 4) == 3) && |
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(encoded[len-1] == '=') && |
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(encoded[len-2] == '=') && |
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(encoded[len-3] == '=')) |
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encoded[len-3] = '\0'; |
blen = uudecode(encoded, blob, sizeof(blob)); |
blen = uudecode(encoded, blob, sizeof(blob)); |
if (blen < 0) { |
if (blen < 0) { |
fprintf(stderr, "uudecode failed.\n"); |
fprintf(stderr, "uudecode failed.\n"); |
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} |
} |
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#ifdef SMARTCARD |
#ifdef SMARTCARD |
#define NUM_RSA_KEY_ELEMENTS 5+1 |
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#define COPY_RSA_KEY(x, i) \ |
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do { \ |
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len = BN_num_bytes(prv->rsa->x); \ |
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elements[i] = xmalloc(len); \ |
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debug("#bytes %d", len); \ |
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if (BN_bn2bin(prv->rsa->x, elements[i]) < 0) \ |
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goto done; \ |
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} while (0) |
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static int |
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get_AUT0(char *aut0) |
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{ |
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EVP_MD *evp_md = EVP_sha1(); |
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EVP_MD_CTX md; |
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char *pass; |
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pass = read_passphrase("Enter passphrase for smartcard: ", RP_ALLOW_STDIN); |
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if (pass == NULL) |
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return -1; |
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EVP_DigestInit(&md, evp_md); |
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EVP_DigestUpdate(&md, pass, strlen(pass)); |
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EVP_DigestFinal(&md, aut0, NULL); |
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memset(pass, 0, strlen(pass)); |
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xfree(pass); |
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return 0; |
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} |
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static void |
static void |
do_upload(struct passwd *pw, const char *sc_reader_id) |
do_upload(struct passwd *pw, const char *sc_reader_id) |
{ |
{ |
Key *prv = NULL; |
Key *prv = NULL; |
struct stat st; |
struct stat st; |
u_char *elements[NUM_RSA_KEY_ELEMENTS]; |
int ret; |
u_char key_fid[2]; |
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u_char DEFAUT0[] = {0xad, 0x9f, 0x61, 0xfe, 0xfa, 0x20, 0xce, 0x63}; |
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u_char AUT0[EVP_MAX_MD_SIZE]; |
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int len, status = 1, i, fd = -1, ret; |
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int sw = 0, cla = 0x00; |
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for (i = 0; i < NUM_RSA_KEY_ELEMENTS; i++) |
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elements[i] = NULL; |
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if (!have_identity) |
if (!have_identity) |
ask_filename(pw, "Enter file in which the key is"); |
ask_filename(pw, "Enter file in which the key is"); |
if (stat(identity_file, &st) < 0) { |
if (stat(identity_file, &st) < 0) { |
perror(identity_file); |
perror(identity_file); |
goto done; |
exit(1); |
} |
} |
prv = load_identity(identity_file); |
prv = load_identity(identity_file); |
if (prv == NULL) { |
if (prv == NULL) { |
error("load failed"); |
error("load failed"); |
goto done; |
exit(1); |
} |
} |
COPY_RSA_KEY(q, 0); |
ret = sc_put_key(prv, sc_reader_id); |
COPY_RSA_KEY(p, 1); |
key_free(prv); |
COPY_RSA_KEY(iqmp, 2); |
if (ret < 0) |
COPY_RSA_KEY(dmq1, 3); |
exit(1); |
COPY_RSA_KEY(dmp1, 4); |
logit("loading key done"); |
COPY_RSA_KEY(n, 5); |
exit(0); |
len = BN_num_bytes(prv->rsa->n); |
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fd = sectok_friendly_open(sc_reader_id, STONOWAIT, &sw); |
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if (fd < 0) { |
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error("sectok_open failed: %s", sectok_get_sw(sw)); |
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goto done; |
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} |
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if (! sectok_cardpresent(fd)) { |
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error("smartcard in reader %s not present", |
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sc_reader_id); |
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goto done; |
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} |
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ret = sectok_reset(fd, 0, NULL, &sw); |
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if (ret <= 0) { |
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error("sectok_reset failed: %s", sectok_get_sw(sw)); |
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goto done; |
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} |
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if ((cla = cyberflex_inq_class(fd)) < 0) { |
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error("cyberflex_inq_class failed"); |
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goto done; |
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} |
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memcpy(AUT0, DEFAUT0, sizeof(DEFAUT0)); |
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if (cyberflex_verify_AUT0(fd, cla, AUT0, sizeof(DEFAUT0)) < 0) { |
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if (get_AUT0(AUT0) < 0 || |
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cyberflex_verify_AUT0(fd, cla, AUT0, sizeof(DEFAUT0)) < 0) { |
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error("cyberflex_verify_AUT0 failed"); |
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goto done; |
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} |
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} |
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key_fid[0] = 0x00; |
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key_fid[1] = 0x12; |
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if (cyberflex_load_rsa_priv(fd, cla, key_fid, 5, 8*len, elements, |
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&sw) < 0) { |
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error("cyberflex_load_rsa_priv failed: %s", sectok_get_sw(sw)); |
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goto done; |
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} |
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if (!sectok_swOK(sw)) |
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goto done; |
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log("cyberflex_load_rsa_priv done"); |
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key_fid[0] = 0x73; |
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key_fid[1] = 0x68; |
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if (cyberflex_load_rsa_pub(fd, cla, key_fid, len, elements[5], |
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&sw) < 0) { |
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error("cyberflex_load_rsa_pub failed: %s", sectok_get_sw(sw)); |
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goto done; |
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} |
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if (!sectok_swOK(sw)) |
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goto done; |
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log("cyberflex_load_rsa_pub done"); |
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status = 0; |
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log("loading key done"); |
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done: |
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memset(elements[0], '\0', BN_num_bytes(prv->rsa->q)); |
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memset(elements[1], '\0', BN_num_bytes(prv->rsa->p)); |
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memset(elements[2], '\0', BN_num_bytes(prv->rsa->iqmp)); |
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memset(elements[3], '\0', BN_num_bytes(prv->rsa->dmq1)); |
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memset(elements[4], '\0', BN_num_bytes(prv->rsa->dmp1)); |
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memset(elements[5], '\0', BN_num_bytes(prv->rsa->n)); |
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if (prv) |
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key_free(prv); |
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for (i = 0; i < NUM_RSA_KEY_ELEMENTS; i++) |
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if (elements[i]) |
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xfree(elements[i]); |
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if (fd != -1) |
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sectok_close(fd); |
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exit(status); |
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} |
} |
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static void |
static void |
do_download(struct passwd *pw, const char *sc_reader_id) |
do_download(struct passwd *pw, const char *sc_reader_id) |
{ |
{ |
Key *pub = NULL; |
Key **keys = NULL; |
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int i; |
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pub = sc_get_key(sc_reader_id); |
keys = sc_get_keys(sc_reader_id, NULL); |
if (pub == NULL) |
if (keys == NULL) |
fatal("cannot read public key from smartcard"); |
fatal("cannot read public key from smartcard"); |
key_write(pub, stdout); |
for (i = 0; keys[i]; i++) { |
key_free(pub); |
key_write(keys[i], stdout); |
fprintf(stdout, "\n"); |
key_free(keys[i]); |
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fprintf(stdout, "\n"); |
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} |
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xfree(keys); |
exit(0); |
exit(0); |
} |
} |
#endif /* SMARTCARD */ |
#endif /* SMARTCARD */ |
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public = key_load_public(identity_file, &comment); |
public = key_load_public(identity_file, &comment); |
if (public != NULL) { |
if (public != NULL) { |
fp = key_fingerprint(public, fptype, rep); |
fp = key_fingerprint(public, fptype, rep); |
printf("%d %s %s\n", key_size(public), fp, comment); |
printf("%u %s %s\n", key_size(public), fp, comment); |
key_free(public); |
key_free(public); |
xfree(comment); |
xfree(comment); |
xfree(fp); |
xfree(fp); |
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if (i == 0 || ep == NULL || (*ep != ' ' && *ep != '\t')) { |
if (i == 0 || ep == NULL || (*ep != ' ' && *ep != '\t')) { |
int quoted = 0; |
int quoted = 0; |
comment = cp; |
comment = cp; |
for (; *cp && (quoted || (*cp != ' ' && *cp != '\t')); cp++) { |
for (; *cp && (quoted || (*cp != ' ' && |
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*cp != '\t')); cp++) { |
if (*cp == '\\' && cp[1] == '"') |
if (*cp == '\\' && cp[1] == '"') |
cp++; /* Skip both */ |
cp++; /* Skip both */ |
else if (*cp == '"') |
else if (*cp == '"') |
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} |
} |
comment = *cp ? cp : comment; |
comment = *cp ? cp : comment; |
fp = key_fingerprint(public, fptype, rep); |
fp = key_fingerprint(public, fptype, rep); |
printf("%d %s %s\n", key_size(public), fp, |
printf("%u %s %s\n", key_size(public), fp, |
comment ? comment : "no comment"); |
comment ? comment : "no comment"); |
xfree(fp); |
xfree(fp); |
key_free(public); |
key_free(public); |