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author | Laurent Bercot <ska-skaware@skarnet.org> | 2021-08-30 19:11:44 +0000 |
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committer | Laurent Bercot <ska@appnovation.com> | 2021-08-30 19:11:44 +0000 |
commit | 691c69e626e4ceb85567a5288348bd04378fd410 (patch) | |
tree | 9ae1c3f2c2984aafa2b9caf7987fe0011fcf6828 /src/supervision/s6-svdir-link.c | |
parent | 1719a60278cf36558b568349c0c9f9b5eb91c999 (diff) | |
download | s6-691c69e626e4ceb85567a5288348bd04378fd410.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.c | 105 |
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 ; -} |