rustit/mirror_runit/runit-2.1.2/src/runsvctrl.c
2024-03-24 23:51:57 +00:00

82 lines
1.8 KiB
C

#include <unistd.h>
#include "strerr.h"
#include "error.h"
#include "open.h"
#define USAGE " u|d|o|p|c|h|a|i|q|1|2|t|k|x|e service ..."
#define VERSION "$Id: ccf8fc8ee3c340d8de97b5ddd9270b55e0f437cb $"
#define FATAL "runsvctrl: fatal: "
#define WARNING "runsvctrl: warning: "
char *progname;
unsigned int rc =0;
void usage() { strerr_die4x(1, "usage: ", progname, USAGE, "\n"); }
void fatal(char *m1) { strerr_die3sys(111, FATAL, m1, ": "); }
void warn(char *m1, char *m2) {
rc++;
strerr_warn5(WARNING, m1, ": ", m2, ": ", &strerr_sys);
}
void warnx(char *m1, char *m2) {
rc++;
strerr_warn4(WARNING, m1, ": ", m2, 0);
}
int ctrl(char *name, char c) {
int fd;
if ((fd =open_write("supervise/control")) == -1) {
if (errno == error_nodevice)
warnx(name, "runsv not running.");
else
warn(name, "unable to open supervise/control");
return(-1);
}
if (write(fd, &c, 1) != 1) {
warn(name, "unable to write to supervise/control");
return(-1);
}
return(1);
}
int main(int argc, char **argv) {
char **dir;
int curdir;
char c;
progname =*argv++;
if (! argv || ! *argv) usage();
switch ((c =**argv)) {
case 'e': c ='x';
case 'u': case 'd': case 'o': case 'x': case 'p': case 'c': case 'h':
case 'a': case 'i': case 't': case 'k': case 'q': case '1': case '2':
break;
default:
usage();
}
dir =++argv;
if (! dir || ! *dir) usage();
if ((curdir =open_read(".")) == -1) {
rc =100;
fatal("unable to open current directory");
}
for (; dir && *dir; dir++) {
if (chdir(*dir) == -1) {
warn(*dir, "unable to change directory");
continue;
}
ctrl(*dir, c);
if (fchdir(curdir) == -1) {
rc =100;
fatal("unable to change directory");
}
}
if (rc > 100) rc =100;
_exit(rc);
}