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authorLaurent Bercot <ska-skaware@skarnet.org>2021-08-30 19:11:44 +0000
committerLaurent Bercot <ska@appnovation.com>2021-08-30 19:11:44 +0000
commit691c69e626e4ceb85567a5288348bd04378fd410 (patch)
tree9ae1c3f2c2984aafa2b9caf7987fe0011fcf6828 /src/supervision/s6-svdir-link.c
parent1719a60278cf36558b568349c0c9f9b5eb91c999 (diff)
downloads6-691c69e626e4ceb85567a5288348bd04378fd410.tar.xz
s6-svlink, s6-svunlink, .h changes
Renamed from s6-svdir-(un)link. Doc added. Full functionality added. Still need to be tested. Unrelated: .h names simplified. Signed-off-by: Laurent Bercot <ska@appnovation.com>
Diffstat (limited to 'src/supervision/s6-svdir-link.c')
-rw-r--r--src/supervision/s6-svdir-link.c105
1 files changed, 0 insertions, 105 deletions
diff --git a/src/supervision/s6-svdir-link.c b/src/supervision/s6-svdir-link.c
deleted file mode 100644
index 8329197..0000000
--- a/src/supervision/s6-svdir-link.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/* ISC license. */
-
-#include <errno.h>
-#include <stdint.h>
-#include <string.h>
-#include <sys/stat.h>
-
-#include <skalibs/types.h>
-#include <skalibs/sgetopt.h>
-#include <skalibs/tai.h>
-#include <skalibs/strerr2.h>
-#include <skalibs/djbunix.h>
-
-#include <s6/s6-supervise.h>
-
-#define USAGE "s6-svdir-link [ -d ] [ -f ] [ -P | -p ] [ -t timeout ] scandir name servicedir"
-#define dieusage() strerr_dieusage(100, USAGE)
-
-static inline void checkscandir (char const *s)
-{
- int r ;
- int fd ;
- size_t len = strlen(s) ;
- char fn[len + 6 + sizeof(S6_SVSCAN_CTLDIR)] ;
- memcpy(fn, s, len) ;
- memcpy(fn + len, "/" S6_SVSCAN_CTLDIR "/lock", 6 + sizeof(S6_SVSCAN_CTLDIR)) ;
- fd = open_read(fn) ;
- if (fd < 0) strerr_diefu2sys(111, "open ", fn) ;
- r = fd_islocked(fd) ;
- if (r < 0) strerr_diefu2sys(111, "check lock on ", fn) ;
- if (!r) strerr_dief2x(1, "s6-svscan not running on ", s) ;
- fd_close(fd) ;
-}
-
-static inline void checkservicedir (char const *s)
-{
- int r ;
- struct stat st ;
- size_t len = strlen(s) ;
- char fn[len + 9] ;
- memcpy(fn, s, len) ;
- memcpy(fn + len, "/run", 4) ;
- if (stat(fn, &st) == -1) strerr_diefu2sys(111, "stat ", fn) ;
- if (!(st.st_mode & S_IXUSR)) strerr_dief2x(100, fn, " is not executable") ;
- r = s6_svc_ok(s) ;
- if (r < 0) strerr_diefu2sys(111, "check supervision status of ", s) ;
- if (r) strerr_warnw2x("supervisor already running on ", s) ;
- memcpy(fn + len + 1, "log", 4) ;
- if (stat(fn, &st) == -1)
- {
- if (errno != ENOENT) strerr_diefu2sys(111, "stat ", fn) ;
- }
- else
- {
- if (!S_ISDIR(st.st_mode)) strerr_dief2x(100, fn, " is not a directory") ;
- memcpy(fn + len + 4, "/run", 5) ;
- if (stat(fn, &st) == -1) strerr_diefu2sys(111, "stat ", fn) ;
- if (!(st.st_mode & S_IXUSR)) strerr_dief2x(100, fn, " is not executable") ;
- fn[len + 4] = 0 ;
- r = s6_svc_ok(fn) ;
- if (r < 0) strerr_diefu2sys(111, "check supervision status of ", fn) ;
- if (r) strerr_warnw2x("supervisor already running on ", fn) ;
- }
-}
-
-int main (int argc, char const *const *argv)
-{
- tain tto = TAIN_INFINITE_RELATIVE ;
- uint32_t options = 0 ;
- PROG = "s6-svdir-link" ;
- {
- unsigned int t = 0 ;
- subgetopt l = SUBGETOPT_ZERO ;
- for (;;)
- {
- int opt = subgetopt_r(argc, argv, "dfPpt:", &l) ;
- if (opt == -1) break ;
- switch (opt)
- {
- case 'd' : options |= 4 ; break ;
- case 'f' : options |= 1 ; break ;
- case 'P' : options |= 2 ; break ;
- case 'p' : options &= ~2U ; break ;
- case 't' : if (!uint0_scan(l.arg, &t)) dieusage() ; break ;
- default : dieusage() ;
- }
- }
- argc -= l.ind ; argv += l.ind ;
- if (t) tain_from_millisecs(&tto, t) ;
- }
- if (argc < 3) dieusage() ;
-
- if (!argv[0][0]) strerr_dief1x(100, "invalid scandir") ;
- if (!argv[1][0] || argv[1][0] == '.' || argv[1][0] == '/')
- strerr_dief1x(100, "invalid name") ;
- if (!argv[2][0]) strerr_dief1x(100, "invalid servicedir") ;
- checkscandir(argv[0]) ;
-
- tain_now_set_stopwatch_g() ;
- tain_add_g(&tto, &tto) ;
-
- if (s6_supervise_link_names_g(argv[0], argv + 2, argv + 1, 1, options, &tto) == -1)
- strerr_diefu6sys(111, "link servicedir ", argv[2], " into scandir ", argv[0], " with name ", argv[1]) ;
- return 0 ;
-}