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authorLaurent Bercot <ska-skaware@skarnet.org>2023-01-09 11:09:14 +0000
committerLaurent Bercot <ska@appnovation.com>2023-01-09 11:09:14 +0000
commit09750ce3525129a676dec4f579aea3ad2eca1b19 (patch)
treeacae6b5f47914d7ed85bbb8fe9780ed34a85cfd0 /src/instance/s6-instance-control.c
parent191b46491407632f2431c46eab97dbf5543fa26d (diff)
downloads6-09750ce3525129a676dec4f579aea3ad2eca1b19.tar.xz
Add instances implementation (still needs testing)
Signed-off-by: Laurent Bercot <ska@appnovation.com>
Diffstat (limited to 'src/instance/s6-instance-control.c')
-rw-r--r--src/instance/s6-instance-control.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/src/instance/s6-instance-control.c b/src/instance/s6-instance-control.c
new file mode 100644
index 0000000..899ab89
--- /dev/null
+++ b/src/instance/s6-instance-control.c
@@ -0,0 +1,79 @@
+/* ISC license. */
+
+#include <string.h>
+
+#include <skalibs/bytestr.h>
+#include <skalibs/types.h>
+#include <skalibs/strerr.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/exec.h>
+
+#include <s6/config.h>
+
+#define USAGE "s6-instance-control [ -wu | -wU | -wd | -wD | -wr | -wR ] [ -T timeout ] [ -abqhkti12pcyroduDUxOX ] service instance"
+#define dieusage() strerr_dieusage(100, USAGE)
+
+#define DATASIZE 63
+
+int main (int argc, char const **argv)
+{
+ char const **fullargv = argv ;
+ size_t namelen ;
+ PROG = "s6-instance-control" ;
+
+ {
+ subgetopt l = SUBGETOPT_ZERO ;
+ unsigned int datalen = 1 ;
+ unsigned int timeout = 0 ;
+ for (;;)
+ {
+ int opt = subgetopt_r(argc, argv, "abqhkti12pcyroduxOT:w:", &l) ;
+ if (opt == -1) break ;
+ switch (opt)
+ {
+ case 'a' :
+ case 'b' :
+ case 'q' :
+ case 'h' :
+ case 'k' :
+ case 't' :
+ case 'i' :
+ case '1' :
+ case '2' :
+ case 'p' :
+ case 'c' :
+ case 'y' :
+ case 'r' :
+ case 'o' :
+ case 'd' :
+ case 'u' :
+ case 'D' :
+ case 'U' :
+ case 'x' :
+ case 'O' : if (datalen++ >= DATASIZE) strerr_dief1x(100, "too many commands") ; break ;
+ case 'T' : if (!uint0_scan(l.arg, &timeout)) dieusage() ; break ;
+ case 'w' : if (!memchr("dDuUrR", l.arg[0], 6)) dieusage() ; break ;
+ default : dieusage() ;
+ }
+ }
+ argc -= l.ind ; argv += l.ind ;
+ }
+
+ if (argc < 2) dieusage() ;
+ namelen = strlen(argv[1]) ;
+ if (!argv[0][0]) strerr_dief1x(100, "invalid service name") ;
+ if (!argv[1][0] || argv[1][0] == '.' || byte_in(argv[1], namelen, " \t\f\r\n", 5) < 5)
+ strerr_dief1x(100, "invalid instance name") ;
+
+ {
+ size_t svlen = strlen(argv[0]) ;
+ char fn[svlen + 11 + namelen] ;
+ memcpy(fn, argv[0], svlen) ;
+ memcpy(fn + svlen, "/instance/", 10) ;
+ memcpy(fn + svlen + 10, argv[1], namelen + 1) ;
+ argv[0] = fn ;
+ argv[1] = 0 ;
+ fullargv[0] = S6_BINPREFIX "s6-svc" ;
+ xexec(fullargv) ;
+ }
+}