#include <mLib/daemonize.h>
#include <mLib/darray.h>
#include <mLib/dstr.h>
+#include <mLib/macros.h>
+#include <mLib/mdup.h>
#include <mLib/mdwopt.h>
#include <mLib/quis.h>
#include <mLib/report.h>
/*----- Static variables --------------------------------------------------*/
+static sel_state sel;
static const char *pidfile = 0;
static const char *logname = 0;
static FILE *logfp = 0;
#define f_noinput 64u
#define f_warn 128u
#define f_uclose 256u
+#define f_losing 512u
/*----- Main code ---------------------------------------------------------*/
die(EXIT_FAILURE, "unexpected background tag `%s'", q);
}
+static void PRINTF_LIKE(2, 3) dolog(int prio, const char *msg, ...)
+{
+ va_list ap;
+ dstr d = DSTR_INIT;
+ const char *cat;
+
+ va_start(ap, msg);
+ dstr_vputf(&d, msg, &ap);
+ va_end(ap);
+ if (f & f_syslog) syslog(prio, "%s", d.buf);
+ if (logfp) {
+ switch (prio) {
+ case LOG_WARNING: cat = "warning"; break;
+ case LOG_DEBUG: cat = "debug"; break;
+ case LOG_ERR: cat = "error"; break;
+ default: cat = "message"; break;
+ }
+ writelog(cat, d.buf);
+ }
+ if (prio == LOG_WARNING && (f & f_warn))
+ fprintf(stderr, "Warning: %s\n", d.buf);
+ dstr_destroy(&d);
+}
+
static void checkfg(void)
{ if (bgtag) die(EXIT_FAILURE, "unexpected foreground response"); }
if (!p) {
if (f & f_command)
die(EXIT_FAILURE, "server dropped the connection");
+ f &= ~f_losing;
exit(0);
}
q = str_getword(&p);
if (!q)
return;
- if (strcmp(q, "WARN") == 0) {
- if (f & f_syslog)
- syslog(LOG_WARNING, "%s", p);
- if (logfp)
- writelog("warning", p);
- if (f & f_warn)
- fprintf(stderr, "Warning: %s\n", p);
- } else if (strcmp(q, "TRACE") == 0) {
- if (f & f_syslog)
- syslog(LOG_DEBUG, "%s", p);
- if (logfp)
- writelog("debug", p);
- } else if (!(f & f_command)) {
- if (f & f_syslog)
- syslog(LOG_ERR, "unexpected output `%s %s'", q, p);
- if (logfp) {
- dstr d = DSTR_INIT;
- dstr_putf(&d, "unexpected output `%s %s'", q, p);
- writelog("error", d.buf);
- dstr_destroy(&d);
- }
- } else if (strcmp(q, "FAIL") == 0) {
+ if (strcmp(q, "WARN") == 0)
+ dolog(LOG_WARNING, "%s", p);
+ else if (strcmp(q, "TRACE") == 0)
+ dolog(LOG_DEBUG, "%s", p);
+ else if (!(f & f_command))
+ dolog(LOG_ERR, "unexpected output `%s %s'", q, p);
+ else if (strcmp(q, "FAIL") == 0) {
checkfg();
die(EXIT_FAILURE, "%s", p);
} else if (strcmp(q, "INFO") == 0) {
}
}
+static void eline(char *p, size_t len, void *b)
+{
+ if (p)
+ dolog(LOG_WARNING, "(stderr): %s", p);
+ else {
+ selbuf_destroy(b);
+ close(fd);
+ }
+}
+
static void setup(const char *cmd)
{
dstr d = DSTR_INIT;
if (logfp)
writelog("error", d.buf);
else if (logname)
- die(EXIT_FAILURE, d.buf);
+ die(EXIT_FAILURE, "%s", d.buf);
if (f & f_syslog)
- syslog(LOG_ERR, d.buf);
+ syslog(LOG_ERR, "%s", d.buf);
dstr_destroy(&d);
}
}
static void sigdie(int sig)
{ cleanup(); signal(sig, SIG_DFL); raise(sig); }
-static void putarg(string_v *av, const char *fmt, ...)
+static void PRINTF_LIKE(2, 3) putarg(string_v *av, const char *fmt, ...)
{
va_list ap;
dstr d = DSTR_INIT;
string_v spawnopts = DA_INIT;
char *p;
FILE *pidfp = 0;
+ int i;
+ size_t sz;
uid_t u = -1;
gid_t g = -1;
+ int pfd[2], efd[2];
+ mdup_fd md[3];
+ pid_t kid;
+ struct sigaction sa;
+ sigset_t newmask, oldmask;
+ struct sockaddr_un sun;
+ selbuf bu, bs, be;
+ dstr d = DSTR_INIT;
+ sig hup;
ego(argv[0]);
{ 0, 0, 0, 0 }
};
- int i = mdwopt(argc, argv, "+hvuDU:G:d:a:sp:S:lwf:nP:", opts, 0, 0, 0);
+ i = mdwopt(argc, argv, "+hvuDU:G:d:a:sp:S:lwf:nP:", opts, 0, 0, 0);
if (i < 0)
break;
switch (i) {
die(EXIT_FAILURE, "couldn't set `%s' as current directory: %s",
dir, strerror(errno));
}
- if (logname)
- logfile(logname);
if (!pidfile && (f & f_daemon) && ((f & f_syslog) || logname))
pidfile = "tripectl.pid";
if (pidfile && (pidfp = fopen(pidfile, "w")) == 0) {
die(EXIT_FAILURE, "couldn't open `%s' for writing: %s",
pidfile, strerror(errno));
}
+ sel_init(&sel);
+ sig_init(&sel);
signal(SIGINT, sigdie);
signal(SIGQUIT, sigdie);
signal(SIGTERM, sigdie);
/* --- Connect to the server --- */
if (f & f_spawn) {
- int pfd[2];
- pid_t kid;
- struct sigaction sa;
- sigset_t newmask, oldmask;
-
sa.sa_handler = reap;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_NOCLDSTOP;
putarg(&spawnopts, "-d.");
putarg(&spawnopts, "-F");
putarg(&spawnopts, "%s", spawnpath);
- if (socketpair(PF_UNIX, SOCK_STREAM, 0, pfd))
+ if (socketpair(PF_UNIX, SOCK_STREAM, 0, pfd) || pipe(efd))
die(EXIT_FAILURE, "error from socketpair: %s", strerror(errno));
sigemptyset(&newmask);
sigaddset(&newmask, SIGCHLD);
if ((kid = fork()) < 0)
die(EXIT_FAILURE, "fork failed: %s", strerror(errno));
if (!kid) {
- dup2(pfd[1], STDIN_FILENO);
- dup2(pfd[1], STDOUT_FILENO);
- close(pfd[0]);
- close(pfd[1]);
- if (logfp) fclose(logfp);
+ close(pfd[0]); close(efd[0]);
+ sigprocmask(SIG_SETMASK, &oldmask, 0);
+ md[0].cur = pfd[1]; md[0].want = STDIN_FILENO;
+ md[1].cur = pfd[1]; md[1].want = STDOUT_FILENO;
+ md[2].cur = efd[1]; md[2].want = STDERR_FILENO;
+ mdup(md, 3);
if (pidfp) fclose(pidfp);
closelog();
if (f & f_daemon) detachtty();
}
sigprocmask(SIG_SETMASK, &oldmask, 0);
fd = pfd[0];
- close(pfd[1]);
+ close(pfd[1]); close(efd[1]);
+ selbuf_init(&be, &sel, efd[0], eline, &be);
} else {
- struct sockaddr_un sun;
- size_t sz = strlen(sock) + 1;
+ sz = strlen(sock) + 1;
if (sz > sizeof(sun.sun_path))
die(EXIT_FAILURE, "socket name `%s' too long", sock);
memset(&sun, 0, sizeof(sun));
}
}
+ f |= f_losing; /* pessimism */
u_setugid(u, g);
+ if (logname)
+ logfile(logname);
if (f & f_daemon) {
if (daemonize())
die(EXIT_FAILURE, "error becoming daemon: %s", strerror(errno));
if (optind == argc)
setup("WATCH -A+tw");
if (!(f & f_noinput) && optind == argc) {
- sel_state sel;
- selbuf bu, bs;
-
- sel_init(&sel);
selbuf_init(&bu, &sel, STDIN_FILENO, uline, &bu);
selbuf_init(&bs, &sel, fd, sline, &bs);
for (;;) {
/* --- If there's a command, submit it --- */
if (optind < argc) {
- dstr d = DSTR_INIT;
setup((f & f_warn) ? "WATCH -A+w" : "WATCH -A");
while (optind < argc)
u_quotify(&d, argv[optind++]);
/* --- Pull everything else out of the box --- */
- {
- sel_state sel;
- selbuf b;
- sig hup;
-
- sel_init(&sel);
- selbuf_init(&b, &sel, fd, cline, 0);
+ selbuf_init(&bs, &sel, fd, cline, 0);
- if (f & f_syslog)
- openlog(QUIS, 0, LOG_DAEMON);
- if (logfp) {
- sig_init(&sel);
- sig_add(&hup, SIGHUP, sighup, 0);
- }
- for (;;) {
- if (sel_select(&sel) && errno != EINTR && errno != EAGAIN)
- die(EXIT_FAILURE, "select failed: %s", strerror(errno));
- }
+ if (f & f_syslog)
+ openlog(QUIS, 0, LOG_DAEMON);
+ if (logfp)
+ sig_add(&hup, SIGHUP, sighup, 0);
+ for (;;) {
+ if (sel_select(&sel) && errno != EINTR && errno != EAGAIN)
+ die(EXIT_FAILURE, "select failed: %s", strerror(errno));
}
return (0);
~mdw / tripe / blobdiff