3 * $Id: pixie.c,v 1.4 2000/06/17 11:50:53 mdw Exp $
5 * Passphrase pixie for Catacomb
7 * (c) 1999 Straylight/Edgeware
10 /*----- Licensing notice --------------------------------------------------*
12 * This file is part of Catacomb.
14 * Catacomb is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU Library General Public License as
16 * published by the Free Software Foundation; either version 2 of the
17 * License, or (at your option) any later version.
19 * Catacomb is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU Library General Public License for more details.
24 * You should have received a copy of the GNU Library General Public
25 * License along with Catacomb; if not, write to the Free
26 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
30 /*----- Revision history --------------------------------------------------*
33 * Revision 1.4 2000/06/17 11:50:53 mdw
34 * New pixie protocol allowing application to request passphrases and send
35 * them to the pixie. Use the secure arena interface for the input
36 * buffer. Extend the input buffer. Other minor fixes.
38 * Revision 1.3 1999/12/22 22:14:40 mdw
39 * Only produce initialization message if verbose.
41 * Revision 1.2 1999/12/22 22:13:42 mdw
42 * Fix bug in passphrase flushing loop.
44 * Revision 1.1 1999/12/22 15:58:41 mdw
45 * Passphrase pixie support.
49 /*----- Header files ------------------------------------------------------*/
64 #include <sys/types.h>
71 #include <sys/ioctl.h>
75 #include <sys/socket.h>
78 #include <mLib/alloc.h>
79 #include <mLib/dstr.h>
80 #include <mLib/fdflags.h>
81 #include <mLib/mdwopt.h>
82 #include <mLib/quis.h>
83 #include <mLib/report.h>
85 #include <mLib/selbuf.h>
93 #include "passphrase.h"
96 /*----- Static variables --------------------------------------------------*/
98 static unsigned long timeout = 300;
100 static unsigned verbose = 1;
101 static const char *command = 0;
103 static unsigned flags = 0;
110 /*----- Event logging -----------------------------------------------------*/
114 * Arguments: @const char *p@ = @printf@-style format string
115 * @...@ = extra arguments to fill in
119 * Use: Writes out a timestamped log message.
122 static void log(const char *p, ...)
127 if (!(flags & F_SYSLOG)) {
129 struct tm *tm = localtime(&t);
131 d.len += strftime(d.buf, d.sz, "%Y-%m-%d %H:%M:%S ", tm);
134 dstr_vputf(&d, p, ap);
137 if (flags & F_SYSLOG)
138 syslog(LOG_NOTICE, "%s", d.buf);
141 dstr_write(&d, stderr);
146 /*----- Passphrase management ---------------------------------------------*/
148 /* --- Data structures --- */
150 typedef struct phrase {
160 /* --- Variables --- */
162 #define P_ROOT ((phrase *)&p_root)
163 static struct { phrase *next; phrase *prev; } p_root = { P_ROOT, P_ROOT };
165 /* --- @p_free@ --- *
167 * Arguments: @phrase *p@ = pointer to phrase block
171 * Use: Frees a phrase block.
174 static void p_free(phrase *p)
177 sel_rmtimer(&p->timer);
180 p->next->prev = p->prev;
181 p->prev->next = p->next;
185 /* --- @p_timer@ --- *
187 * Arguments: @struct timeval *tv@ = current time
188 * @void *p@ = pointer to phrase
192 * Use: Expires a passphrase.
195 static void p_timer(struct timeval *tv, void *p)
199 log("expiring passphrase `%s'", pp->tag);
203 /* --- @p_alloc@ --- *
205 * Arguments: @size_t sz@ = amount of memory required
207 * Returns: Pointer to allocated memory, or null.
209 * Use: Allocates some locked memory, flushing old passphrases if
210 * there's not enough space.
213 static void *p_alloc(size_t sz)
217 if ((p = l_alloc(&lm, sz)) != 0)
219 if (P_ROOT->next == P_ROOT)
222 log("flushing passphrase `%s' to free up needed space",
225 p_free(P_ROOT->next);
229 /* --- @p_find@ --- *
231 * Arguments: @const char *tag@ = pointer to tag to find
233 * Returns: Pointer to passphrase block, or null.
235 * Use: Finds a passphrase with a given tag.
238 static phrase *p_find(const char *tag)
242 for (p = P_ROOT->next; p != P_ROOT; p = p->next) {
243 if (strcmp(p->tag, tag) == 0) {
246 sel_rmtimer(&p->timer);
247 gettimeofday(&tv, 0);
249 sel_addtimer(&sel, &p->timer, &tv, p_timer, p);
251 p->next->prev = p->prev;
252 p->prev->next = p->next;
254 p->prev = P_ROOT->prev;
255 P_ROOT->prev->next = p;
265 * Arguments: @const char *tag@ = pointer to tag string
266 * @const char *p@ = pointer to passphrase
267 * @unsigned long t@ = expiry timeout
269 * Returns: Pointer to newly-added passphrase.
271 * Use: Adds a new passphrase. The tag must not already exist.
274 static phrase *p_add(const char *tag, const char *p, unsigned long t)
276 size_t sz = strlen(p) + 1;
277 char *l = p_alloc(sz);
280 /* --- Make sure the locked memory was allocated --- */
285 /* --- Fill in some other bits of the block --- */
290 pp->tag = xstrdup(tag);
293 /* --- Set the timer --- */
298 gettimeofday(&tv, 0);
300 sel_addtimer(&sel, &pp->timer, &tv, p_timer, pp);
303 /* --- Link the block into the chain --- */
306 pp->prev = P_ROOT->prev;
307 P_ROOT->prev->next = pp;
312 /* --- @p_flush@ --- *
314 * Arguments: @const char *tag@ = pointer to tag string, or zero for all
318 * Use: Immediately flushes either a single phrase or all of them.
321 static void p_flush(const char *tag)
325 if (!tag && verbose > 1)
326 log("flushing all passphrases");
328 while (p != P_ROOT) {
329 phrase *pp = p->next;
332 else if (strcmp(p->tag, tag) == 0) {
334 log("flushing passphrase `%s'", tag);
342 /*----- Reading passphrases -----------------------------------------------*/
344 /* --- @p_request@ --- *
346 * Arguments: @const char *msg@ = message string
347 * @const char *tag@ = pointer to tag string
348 * @char *buf@ = pointer to (locked) buffer
349 * @size_t sz@ = size of buffer
351 * Returns: Zero if all went well, nonzero otherwise.
353 * Use: Requests a passphrase from the user.
356 static int p_request(const char *msg, const char *tag, char *buf, size_t sz)
358 /* --- If there's a passphrase-fetching command, run it --- */
367 /* --- Substitute the prompt string into the command --- */
371 const char *q = strchr(p, '%');
394 /* --- Create a pipe and start a child process --- */
398 if ((kid = fork()) < 0)
401 /* --- Child process --- */
405 if (dup2(fd[1], STDOUT_FILENO) < 0)
408 execl("/bin/sh", "sh", "-c", d.buf, (void *)0);
412 /* --- Read the data back into my buffer --- */
415 if ((r = read(fd[0], buf, sz - 1)) >= 0) {
416 char *q = memchr(buf, '\n', r);
428 /* --- Tidy up when things go wrong --- */
439 /* --- Read a passphrase from the terminal --- *
441 * Use the standard Catacomb passphrase-reading function, so it'll read the
442 * passphrase from a file descriptor or something if the appropriate
443 * environment variable is set.
449 dstr_putf(&d, "%s %s: ", msg, tag);
450 rc = pixie_getpass(d.buf, buf, sz);
457 /* --- Sort out the buffer --- *
459 * Strip leading spaces.
465 while (isspace((unsigned char)*p))
468 memmove(buf, p, len);
479 * Arguments: @const char **q@ = where to store the result
480 * @const char *tag@ = pointer to tag string
481 * @unsigned mode@ = reading mode (verify?)
482 * @time_t exp@ = expiry time suggestion
484 * Returns: Zero if successful, @-1@ on a read failure, or @+1@ if the
485 * passphrase is missing and there is no fetcher. (This will
486 * always happen if there is no fetcher and @mode@ is
489 * Use: Reads a passphrase from somewhere.
492 static int p_get(const char **q, const char *tag, unsigned mode, time_t exp)
499 /* --- Write a log message --- */
502 log("passphrase `%s' requested", tag);
504 /* --- If there is no fetcher, life is simpler --- */
506 if (!(flags & F_FETCH)) {
507 if (mode == PMODE_VERIFY)
509 if ((p = p_find(tag)) == 0)
515 /* --- Try to find the phrase --- */
517 if (mode == PMODE_VERIFY)
519 if (mode == PMODE_VERIFY || (p = p_find(tag)) == 0) {
520 if ((pp = p_alloc(LBUFSZ)) == 0)
522 if (p_request(mode == PMODE_READ ? "Passphrase" : "New passphrase",
523 tag, pp, LBUFSZ) < 0)
525 p = p_add(tag, pp, exp);
530 /* --- If verification is requested, verify the passphrase --- */
532 if (mode == PMODE_VERIFY) {
533 if (!pp && (pp = p_alloc(LBUFSZ)) == 0)
535 if (p_request("Verify passphrase", tag, pp, LBUFSZ) < 0)
537 if (strcmp(pp, p->p) != 0) {
539 log("passphrases for `%s' don't match", tag);
545 /* --- Tidy up and return the passphrase --- */
548 memset(pp, 0, LBUFSZ);
554 /* --- Tidy up if things went wrong --- */
558 memset(pp, 0, LBUFSZ);
566 /*----- Server command parsing --------------------------------------------*/
568 /* --- Data structures --- */
570 typedef struct pixserv {
577 enum { px_stdin = 1 };
579 #define PIXSERV_TIMEOUT 30
581 /* --- @pixserv_expire@ --- *
583 * Arguments: @struct timeval *tv@ = pointer to current time
584 * @void *p@ = pointer to server block
588 * Use: Expires a pixie connection if the remote end decides he's not
589 * interested any more.
592 static void pixserv_expire(struct timeval *tv, void *p)
595 if (px->fd != px->b.reader.fd)
597 selbuf_destroy(&px->b);
598 close(px->b.reader.fd);
602 /* --- @pixserv_write@ --- *
604 * Arguments: @pixserv *px@ = pointer to server block
605 * @const char *p@ = pointer to skeleton string
606 * @...@ = other arguments to fill in
610 * Use: Formats a string and emits it to the output file.
613 static void pixserv_write(pixserv *px, const char *p, ...)
619 dstr_vputf(&d, p, ap);
620 write(px->fd, d.buf, d.len);
625 /* --- @pixserv_timeout@ --- *
627 * Arguments: @const char *p@ = pointer to timeout string
629 * Returns: Timeout in seconds.
631 * Use: Translates a string to a timeout value in seconds.
634 static unsigned long pixserv_timeout(const char *p)
642 t = strtoul(p, &q, 0);
647 case 's': if (q[1] != 0)
654 /* --- @pixserv_line@ --- *
656 * Arguments: @char *s@ = pointer to the line read
657 * @void *p@ = pointer to server block
661 * Use: Handles a line read from the client.
664 static void pixserv_line(char *s, void *p)
670 /* --- Handle an end-of-file --- */
672 if (!(px->f & px_stdin))
673 sel_rmtimer(&px->timer);
675 if (px->fd != px->b.reader.fd)
677 selbuf_destroy(&px->b);
678 close(px->b.reader.fd);
682 /* --- Fiddle the timeout --- */
684 if (!(px->f & px_stdin)) {
686 gettimeofday(&tv, 0);
687 tv.tv_sec += PIXSERV_TIMEOUT;
688 sel_addtimer(&sel, &px->timer, &tv, pixserv_expire, px);
691 /* --- Scan out the first word --- */
693 if ((q = str_getword(&s)) == 0)
695 for (qq = q; *qq; qq++)
696 *qq = tolower((unsigned char)*qq);
698 /* --- Handle a help request --- */
700 if (strcmp(q, "help") == 0) {
702 INFO Commands supported:\n\
705 INFO PASS tag [expire]\n\
706 INFO VERIFY tag [expire]\n\
708 INFO SET tag [expire] -- phrase\n\
714 /* --- List the passphrases --- */
716 else if (strcmp(q, "list") == 0) {
719 for (p = P_ROOT->next; p != P_ROOT; p = p->next) {
721 pixserv_write(px, "ITEM %s no-expire\n", p->tag);
724 gettimeofday(&tv, 0);
725 TV_SUB(&tv, &p->timer.tv, &tv);
726 pixserv_write(px, "ITEM %s %i\n", p->tag, tv.tv_sec);
729 pixserv_write(px, "OK\n");
732 /* --- Request a passphrase --- */
734 else if ((mode = PMODE_READ, strcmp(q, "pass") == 0) ||
735 (mode = PMODE_VERIFY, strcmp(q, "verify") == 0)) {
740 if ((q = str_getword(&s)) == 0)
741 pixserv_write(px, "FAIL missing tag\n");
742 else if ((t = pixserv_timeout(s)) == 0)
743 pixserv_write(px, "FAIL bad timeout\n");
745 rc = p_get(&p, q, mode, t > timeout ? timeout : t);
748 pixserv_write(px, "OK %s\n", p);
751 pixserv_write(px, "FAIL error reading passphrase\n");
754 pixserv_write(px, "MISSING\n");
760 /* --- Flush existing passphrases --- */
762 else if (strcmp(q, "flush") == 0) {
765 pixserv_write(px, "OK\n");
768 /* --- Set a passphrase --- */
770 else if (strcmp(q, "set") == 0) {
773 if ((tag = str_getword(&s)) == 0)
774 pixserv_write(px, "FAIL missing tag\n");
775 else if ((q = str_getword(&s)) == 0)
776 pixserv_write(px, "FAIL no passphrase\n");
778 if (strcmp(q, "--") != 0) {
779 t = pixserv_timeout(q);
782 t = pixserv_timeout(0);
784 pixserv_write(px, "FAIL no passphrase\n");
785 else if (strcmp(q, "--") != 0)
786 pixserv_write(px, "FAIL rubbish found before passphrase\n");
790 pixserv_write(px, "OK\n");
795 /* --- Shut the server down --- */
797 else if (strcmp(q, "quit") == 0) {
799 log("%s client requested shutdown",
800 px->f & px_stdin ? "local" : "remote");
801 pixserv_write(px, "OK\n");
805 /* --- Report an error for other commands --- */
808 pixserv_write(px, "FAIL unknown command `%s'\n", q);
811 /* --- @pixserv_create@ --- *
813 * Arguments: @int fd@ = file descriptor to read from
814 * @int ofd@ = file descriptor to write to
816 * Returns: Pointer to the new connection.
818 * Use: Creates a new Pixie server instance for a new connection.
821 static pixserv *pixserv_create(int fd, int ofd)
823 pixserv *px = CREATE(pixserv);
825 fdflags(fd, O_NONBLOCK, O_NONBLOCK, FD_CLOEXEC, FD_CLOEXEC);
827 fdflags(ofd, O_NONBLOCK, O_NONBLOCK, FD_CLOEXEC, FD_CLOEXEC);
829 selbuf_init(&px->b, &sel, fd, pixserv_line, px);
830 px->b.b.a = arena_secure;
831 selbuf_setsize(&px->b, 1024);
832 gettimeofday(&tv, 0);
833 tv.tv_sec += PIXSERV_TIMEOUT;
834 sel_addtimer(&sel, &px->timer, &tv, pixserv_expire, px);
839 /* --- @pixserv_accept@ --- *
841 * Arguments: @int fd@ = file descriptor
842 * @unsigned mode@ = what's happened
843 * @void *p@ = an uninteresting argument
847 * Use: Accepts a new connection.
850 static void pixserv_accept(int fd, unsigned mode, void *p)
853 struct sockaddr_un sun;
854 int sunsz = sizeof(sun);
856 if (mode != SEL_READ)
858 if ((nfd = accept(fd, (struct sockaddr *)&sun, &sunsz)) < 0) {
860 log("new connection failed: %s", strerror(errno));
863 pixserv_create(nfd, nfd);
866 /*----- Setting up the server ---------------------------------------------*/
868 /* --- @unlinksocket@ --- *
874 * Use: Tidies up the socket when it's finished with.
877 static char *sockpath;
879 static void unlinksocket(void)
885 /* --- @pix_sigdie@ --- *
887 * Arguments: @int sig@ = signal number
888 * @void *p@ = uninteresting argument
892 * Use: Shuts down the program after a fatal signal.
895 static void pix_sigdie(int sig, void *p)
902 case SIGTERM: p = "SIGTERM"; break;
903 case SIGINT: p = "SIGINT"; break;
905 sprintf(buf, "signal %i", sig);
909 log("shutting down on %s", p);
914 /* --- @pix_sigflush@ --- *
916 * Arguments: @int sig@ = signal number
917 * @void *p@ = uninteresting argument
921 * Use: Flushes the passphrase cache on receipt of a signal.
924 static void pix_sigflush(int sig, void *p)
931 case SIGHUP: p = "SIGHUP"; break;
932 case SIGQUIT: p = "SIGQUIT"; break;
934 sprintf(buf, "signal %i", sig);
938 log("received %s; flushing passphrases", p);
943 /* --- @pix_setup@ --- *
945 * Arguments: @struct sockaddr_un *sun@ = pointer to address to use
946 * @size_t sz@ = size of socket address
950 * Use: Sets up the pixie's Unix-domain socket.
953 static void pix_setup(struct sockaddr_un *sun, size_t sz)
957 /* --- Set up the parent directory --- */
961 char *p = sun->sun_path;
962 char *q = strrchr(p, '/');
971 if (stat(d.buf, &st))
972 die(1, "couldn't stat `%s': %s", d.buf, strerror(errno));
973 if (st.st_mode & 0077)
974 die(1, "parent directory `%s' has group or world access", d.buf);
978 /* --- Initialize the socket --- */
986 if ((fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0)
987 die(1, "couldn't create socket: %s", strerror(errno));
988 if (bind(fd, (struct sockaddr *)sun, sz) < 0) {
990 if (errno != EADDRINUSE)
991 die(1, "couldn't bind to address: %s", strerror(e));
993 die(1, "too many retries; giving up");
995 if (connect(fd, (struct sockaddr *)sun, sz)) {
996 if (errno != ECONNREFUSED)
997 die(1, "couldn't bind to address: %s", strerror(e));
999 log("stale socket found; removing it");
1000 unlink(sun->sun_path);
1004 log("server already running; shutting it down");
1005 write(fd, "QUIT\n", 5);
1011 chmod(sun->sun_path, 0600);
1012 fdflags(fd, O_NONBLOCK, O_NONBLOCK, FD_CLOEXEC, FD_CLOEXEC);
1014 die(1, "couldn't listen on socket: %s", strerror(errno));
1017 /* --- Set up the rest of the server --- */
1020 static sel_file serv;
1021 sockpath = sun->sun_path;
1022 atexit(unlinksocket);
1023 sel_initfile(&sel, &serv, fd, SEL_READ, pixserv_accept, 0);
1028 /*----- Client support code -----------------------------------------------*/
1030 /* --- Variables --- */
1032 static selbuf c_server, c_client;
1034 enum { cf_uclose = 1, cf_sclose = 2 };
1036 /* --- Line handler functions --- */
1038 static void c_uline(char *s, void *p)
1042 selbuf_destroy(&c_client);
1043 shutdown(c_server.reader.fd, 1);
1044 c_flags |= cf_uclose;
1048 write(c_server.reader.fd, s, sz);
1052 static void c_sline(char *s, void *p)
1055 selbuf_destroy(&c_server);
1056 if (!(c_flags & cf_uclose)) {
1057 moan("server closed the connection");
1058 selbuf_destroy(&c_client);
1065 /* --- @pix_client@ --- *
1067 * Arguments: @struct sockaddr_un *sun@ = pointer to socket address
1068 * @size_t sz@ = size of socket address
1069 * @char *argv[]@ = pointer to arguments to send
1073 * Use: Performs client-side actions for the passphrase pixie.
1076 static void pix_client(struct sockaddr_un *sun, size_t sz, char *argv[])
1080 /* --- Open the socket --- */
1082 if ((fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0)
1083 die(1, "couldn't create socket: %s", strerror(errno));
1084 if (connect(fd, (struct sockaddr *)sun, sz))
1085 die(1, "couldn't connect to server: %s", strerror(errno));
1086 selbuf_init(&c_server, &sel, fd, c_sline, 0);
1088 /* --- If there are any arguments, turn them into a string --- */
1091 selbuf_init(&c_client, &sel, STDIN_FILENO, c_uline, 0);
1100 write(fd, d.buf, d.len);
1105 /* --- And repeat --- */
1111 /*----- Main code ---------------------------------------------------------*/
1113 /* --- @help@, @version@, @usage@ --- *
1115 * Arguments: @FILE *fp@ = stream to write on
1119 * Use: Emit helpful messages.
1122 static void usage(FILE *fp)
1126 $ [-qvidl] [-c command] [-t timeout] [-s socket]\n\
1127 $ [-s socket] -C [command args...]\n\
1131 static void version(FILE *fp)
1133 pquis(fp, "$, Catacomb version " VERSION "\n");
1136 static void help(FILE *fp)
1142 The Catacomb passphrase pixie collects and caches passphrases used to\n\
1143 protect important keys. Options provided:\n\
1145 -h, --help Show this help text.\n\
1146 -V, --version Show the program's version number.\n\
1147 -u, --usage Show a (very) terse usage summary.\n\
1149 -C, --client Connect to a running pixie as a client.\n\
1151 -q, --quiet Emit fewer log messages.\n\
1152 -v, --version Emit more log messages.\n\
1153 -s, --socket=FILE Name the pixie's socket.\n\
1154 -c, --command=COMMAND Shell command to read a passphrase.\n\
1155 -f, --fetch Fetch passphrases from the terminal.\n\
1156 -t, --timeout=TIMEOUT Length of time to retain a passphrase in memory.\n\
1157 -i, --interactive Allow commands to be typed interactively.\n\
1158 -d, --daemon Fork into the background after initialization.\n\
1159 -l, --syslog Emit log messages to the system log.\n\
1161 The COMMAND may contain `%m' and `%t' markers which are replaced by a\n\
1162 prompt message and the passphrase tag respectively. The TIMEOUT is an\n\
1163 integer, optionally followed by `d', `h', `m' or `s' to specify units of\n\
1164 days, hours, minutes or seconds respectively.\n\
1166 In client mode, if a command is specified on the command line, it is sent\n\
1167 to the running server; otherwise the program reads requests from stdin.\n\
1168 Responses from the pixie are written to stdout. Send a HELP request for\n\
1169 a quick summary of the pixie communication protocol.\n\
1175 * Arguments: @int argc@ = number of arguments
1176 * @char *argv[]@ = vector of argument values
1178 * Returns: Zero if OK.
1180 * Use: Main program. Listens on a socket and responds with a PGP
1181 * passphrase when asked.
1184 int main(int argc, char *argv[])
1187 struct sockaddr_un *sun;
1199 /* --- Initialize libraries --- */
1204 /* --- Set up the locked memory area --- */
1209 /* --- Parse command line arguments --- */
1212 static struct option opts[] = {
1214 /* --- Standard GNUy help options --- */
1216 { "help", 0, 0, 'h' },
1217 { "version", 0, 0, 'V' },
1218 { "usage", 0, 0, 'u' },
1220 /* --- Other options --- */
1222 { "quiet", 0, 0, 'q' },
1223 { "verbose", 0, 0, 'v' },
1224 { "client", 0, 0, 'C' },
1225 { "socket", OPTF_ARGREQ, 0, 's' },
1226 { "command", OPTF_ARGREQ, 0, 'c' },
1227 { "fetch", 0, 0, 'f' },
1228 { "timeout", OPTF_ARGREQ, 0, 't' },
1229 { "interactive", 0, 0, 'i' },
1230 { "stdin", 0, 0, 'i' },
1231 { "daemon", 0, 0, 'd' },
1232 { "log", 0, 0, 'l' },
1233 { "syslog", 0, 0, 'l' },
1235 /* --- Magic terminator --- */
1240 int i = mdwopt(argc, argv, "hVuqvCs:c:ft:idl", opts, 0, 0, 0);
1246 /* --- GNUy help options --- */
1258 /* --- Other interesting things --- */
1274 if ((timeout = pixserv_timeout(optarg)) == 0)
1275 die(1, "bad timeout `%s'", optarg);
1294 /* --- Something else --- */
1302 if (f & f_bogus || (optind < argc && !(f & f_client))) {
1307 /* --- Set up the socket address --- */
1309 sun = pixie_address(path, &sz);
1311 /* --- Initialize selectory --- */
1314 signal(SIGPIPE, SIG_IGN);
1316 /* --- Be a client if a client's wanted --- */
1319 pix_client(sun, sz, argv + optind);
1321 /* --- Open the syslog if requested --- */
1325 openlog(QUIS, 0, LOG_DAEMON);
1328 /* --- Check on the locked memory area --- */
1332 int rc = l_report(&lm, &d);
1334 die(EXIT_FAILURE, d.buf);
1335 else if (rc && verbose) {
1337 log("couldn't lock passphrase buffer");
1340 arena_setsecure(&lm.a);
1343 /* --- Set signal behaviours --- */
1346 static sig sigint, sigterm, sigquit, sighup;
1348 sig_add(&sigint, SIGINT, pix_sigdie, 0);
1349 sig_add(&sigterm, SIGTERM, pix_sigdie, 0);
1350 sig_add(&sigquit, SIGQUIT, pix_sigflush, 0);
1351 sig_add(&sighup, SIGHUP, pix_sigflush, 0);
1354 /* --- Set up the server --- */
1358 pixserv *px = pixserv_create(STDIN_FILENO, STDOUT_FILENO);
1359 sel_rmtimer(&px->timer);
1363 /* --- Fork into the background if requested --- */
1368 if (((f & f_stdin) &&
1369 (isatty(STDIN_FILENO) || isatty(STDOUT_FILENO))) ||
1370 (!command && (flags & F_FETCH)))
1371 die(1, "can't become a daemon if terminal required");
1373 if ((kid = fork()) < 0)
1374 die(1, "fork failed: %s", strerror(errno));
1380 if ((fd = open("/dev/tty", O_RDONLY)) >= 0) {
1381 ioctl(fd, TIOCNOTTY);
1393 log("initialized ok");
1399 /*----- That's all, folks -------------------------------------------------*/