Mercurial > dropbear

comparison cli-kex.c @ 399:a707e6148060

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merge of '5fdf69ca60d1683cdd9f4c2595134bed26394834' and '6b61c50f4cf888bea302ac8fcf5dbb573b443251'
author Matt Johnston <matt@ucc.asn.au>
date Sat, 03 Feb 2007 08:20:34 +0000
parents 454a34b2dfd1
children ab57ba0cb667
comparison
equal deleted inserted replaced
394:17d097fc111c 399:a707e6148060
120 120
121 fp = sign_key_fingerprint(keyblob, keybloblen); 121 fp = sign_key_fingerprint(keyblob, keybloblen);
122 fprintf(stderr, "\nHost '%s' is not in the trusted hosts file.\n(fingerprint %s)\nDo you want to continue connecting? (y/n)\n", 122 fprintf(stderr, "\nHost '%s' is not in the trusted hosts file.\n(fingerprint %s)\nDo you want to continue connecting? (y/n)\n",
123 cli_opts.remotehost, 123 cli_opts.remotehost,
124 fp); 124 fp);
125 m_free(fp);
125 126
126 tty = fopen(_PATH_TTY, "r"); 127 tty = fopen(_PATH_TTY, "r");
127 if (tty) { 128 if (tty) {
128 response = getc(tty); 129 response = getc(tty);
129 fclose(tty); 130 fclose(tty);
130 } else { 131 } else {
131 response = getc(stdin); 132 response = getc(stdin);
132 } 133 }
133 134
134 if (response == 'y') { 135 if (response == 'y') {
135 m_free(fp);
136 return; 136 return;
137 } 137 }
138 138
139 dropbear_exit("Didn't validate host key"); 139 dropbear_exit("Didn't validate host key");
140 } 140 }
143 143
144 char * filename = NULL; 144 char * filename = NULL;
145 FILE *hostsfile = NULL; 145 FILE *hostsfile = NULL;
146 int readonly = 0; 146 int readonly = 0;
147 struct passwd *pw = NULL; 147 struct passwd *pw = NULL;
148 char * homedir = NULL;
148 unsigned int hostlen, algolen; 149 unsigned int hostlen, algolen;
149 unsigned long len; 150 unsigned long len;
150 const char *algoname = NULL; 151 const char *algoname = NULL;
151 buffer * line = NULL; 152 buffer * line = NULL;
152 int ret; 153 int ret;
153 154
154 pw = getpwuid(getuid()); 155 homedir = getenv("HOME");
155 156
156 if (pw == NULL) { 157 if (!homedir) {
157 dropbear_exit("Failed to get homedir"); 158 pw = getpwuid(getuid());
158 } 159 if (pw) {
159 160 homedir = pw->pw_dir;
160 len = strlen(pw->pw_dir); 161 }
161 filename = m_malloc(len + 18); /* "/.ssh/known_hosts" and null-terminator*/ 162 pw = NULL;
162 163 }
163 snprintf(filename, len+18, "%s/.ssh", pw->pw_dir); 164
164 /* Check that ~/.ssh exists - easiest way is just to mkdir */ 165 if (homedir) {
165 if (mkdir(filename, S_IRWXU) != 0) { 166
166 if (errno != EEXIST) { 167 len = strlen(homedir);
167 dropbear_log(LOG_INFO, "Warning: failed creating ~/.ssh: %s", 168 filename = m_malloc(len + 18); /* "/.ssh/known_hosts" and null-terminator*/
168 strerror(errno)); 169
169 TRACE(("mkdir didn't work: %s", strerror(errno))) 170 snprintf(filename, len+18, "%s/.ssh", homedir);
170 ask_to_confirm(keyblob, keybloblen); 171 /* Check that ~/.ssh exists - easiest way is just to mkdir */
171 goto out; /* only get here on success */ 172 if (mkdir(filename, S_IRWXU) != 0) {
172 } 173 if (errno != EEXIST) {
173 } 174 dropbear_log(LOG_INFO, "Warning: failed creating %s/.ssh: %s",
174 175 homedir, strerror(errno));
175 snprintf(filename, len+18, "%s/.ssh/known_hosts", pw->pw_dir); 176 TRACE(("mkdir didn't work: %s", strerror(errno)))
176 hostsfile = fopen(filename, "a+"); 177 ask_to_confirm(keyblob, keybloblen);
177 178 goto out; /* only get here on success */
178 if (hostsfile != NULL) { 179 }
179 fseek(hostsfile, 0, SEEK_SET); 180 }
180 } else { 181
181 /* We mightn't have been able to open it if it was read-only */ 182 snprintf(filename, len+18, "%s/.ssh/known_hosts", homedir);
182 if (errno == EACCES || errno == EROFS) { 183 hostsfile = fopen(filename, "a+");
183 TRACE(("trying readonly: %s", strerror(errno))) 184
184 readonly = 1; 185 if (hostsfile != NULL) {
185 hostsfile = fopen(filename, "r"); 186 fseek(hostsfile, 0, SEEK_SET);
187 } else {
188 /* We mightn't have been able to open it if it was read-only */
189 if (errno == EACCES || errno == EROFS) {
190 TRACE(("trying readonly: %s", strerror(errno)))
191 readonly = 1;
192 hostsfile = fopen(filename, "r");
193 }
186 } 194 }
187 } 195 }
188 196
189 if (hostsfile == NULL) { 197 if (hostsfile == NULL) {
190 TRACE(("hostsfile didn't open: %s", strerror(errno))) 198 TRACE(("hostsfile didn't open: %s", strerror(errno)))
199 dropbear_log(LOG_WARNING, "Failed to open %s/.ssh/known_hosts",
200 homedir);
191 ask_to_confirm(keyblob, keybloblen); 201 ask_to_confirm(keyblob, keybloblen);
192 goto out; /* We only get here on success */ 202 goto out; /* We only get here on success */
193 } 203 }
194 204
195 line = buf_new(MAX_KNOWNHOSTS_LINE); 205 line = buf_new(MAX_KNOWNHOSTS_LINE);