diff options
| -rw-r--r-- | runit/Kbuild.src | 8 | ||||
| -rw-r--r-- | runit/runit_lib.c | 275 | ||||
| -rw-r--r-- | runit/runit_lib.h | 53 | ||||
| -rw-r--r-- | runit/runsv.c | 6 | ||||
| -rw-r--r-- | runit/runsvdir.c | 2 | ||||
| -rw-r--r-- | runit/sv.c | 11 | ||||
| -rw-r--r-- | runit/svlogd.c | 50 |
7 files changed, 63 insertions, 342 deletions
diff --git a/runit/Kbuild.src b/runit/Kbuild.src index d38bad2..0fce955 100644 --- a/runit/Kbuild.src +++ b/runit/Kbuild.src @@ -8,10 +8,10 @@ lib-y:= INSERT -lib-$(CONFIG_RUNSV) += runsv.o runit_lib.o -lib-$(CONFIG_RUNSVDIR) += runsvdir.o runit_lib.o -lib-$(CONFIG_SV) += sv.o runit_lib.o -lib-$(CONFIG_SVLOGD) += svlogd.o runit_lib.o +lib-$(CONFIG_RUNSV) += runsv.o +lib-$(CONFIG_RUNSVDIR) += runsvdir.o +lib-$(CONFIG_SV) += sv.o +lib-$(CONFIG_SVLOGD) += svlogd.o lib-$(CONFIG_CHPST) += chpst.o lib-$(CONFIG_ENVDIR) += chpst.o diff --git a/runit/runit_lib.c b/runit/runit_lib.c deleted file mode 100644 index 8182a90..0000000 --- a/runit/runit_lib.c +++ /dev/null @@ -1,275 +0,0 @@ -/* -Copyright (c) 2001-2006, Gerrit Pape -All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - - 1. Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - 2. Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - 3. The name of the author may not be used to endorse or promote products - derived from this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED -WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF -MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO -EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, -PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; -OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, -WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR -OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF -ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ - -/* Busyboxed by Denys Vlasenko <vda.linux@googlemail.com> */ -/* Collected into one file from runit's many tiny files */ -/* TODO: review, eliminate unneeded stuff, move good stuff to libbb */ - -#include <sys/poll.h> -#include <sys/file.h> -#include "libbb.h" -#include "runit_lib.h" - -#ifdef UNUSED -unsigned byte_chr(char *s,unsigned n,int c) -{ - char ch; - char *t; - - ch = c; - t = s; - for (;;) { - if (!n) break; - if (*t == ch) break; - ++t; - --n; - } - return t - s; -} - -static /* as it isn't used anywhere else */ -void tai_pack(char *s, const struct tai *t) -{ - uint64_t x; - - x = t->x; - s[7] = x & 255; x >>= 8; - s[6] = x & 255; x >>= 8; - s[5] = x & 255; x >>= 8; - s[4] = x & 255; x >>= 8; - s[3] = x & 255; x >>= 8; - s[2] = x & 255; x >>= 8; - s[1] = x & 255; x >>= 8; - s[0] = x; -} - -void tai_unpack(const char *s,struct tai *t) -{ - uint64_t x; - - x = (unsigned char) s[0]; - x <<= 8; x += (unsigned char) s[1]; - x <<= 8; x += (unsigned char) s[2]; - x <<= 8; x += (unsigned char) s[3]; - x <<= 8; x += (unsigned char) s[4]; - x <<= 8; x += (unsigned char) s[5]; - x <<= 8; x += (unsigned char) s[6]; - x <<= 8; x += (unsigned char) s[7]; - t->x = x; -} - - -void taia_add(struct taia *t,const struct taia *u,const struct taia *v) -{ - t->sec.x = u->sec.x + v->sec.x; - t->nano = u->nano + v->nano; - t->atto = u->atto + v->atto; - if (t->atto > 999999999UL) { - t->atto -= 1000000000UL; - ++t->nano; - } - if (t->nano > 999999999UL) { - t->nano -= 1000000000UL; - ++t->sec.x; - } -} - -int taia_less(const struct taia *t, const struct taia *u) -{ - if (t->sec.x < u->sec.x) return 1; - if (t->sec.x > u->sec.x) return 0; - if (t->nano < u->nano) return 1; - if (t->nano > u->nano) return 0; - return t->atto < u->atto; -} - -void taia_now(struct taia *t) -{ - struct timeval now; - gettimeofday(&now, NULL); - tai_unix(&t->sec, now.tv_sec); - t->nano = 1000 * now.tv_usec + 500; - t->atto = 0; -} - -/* UNUSED -void taia_pack(char *s, const struct taia *t) -{ - unsigned long x; - - tai_pack(s, &t->sec); - s += 8; - - x = t->atto; - s[7] = x & 255; x >>= 8; - s[6] = x & 255; x >>= 8; - s[5] = x & 255; x >>= 8; - s[4] = x; - x = t->nano; - s[3] = x & 255; x >>= 8; - s[2] = x & 255; x >>= 8; - s[1] = x & 255; x >>= 8; - s[0] = x; -} -*/ - -void taia_sub(struct taia *t, const struct taia *u, const struct taia *v) -{ - unsigned long unano = u->nano; - unsigned long uatto = u->atto; - - t->sec.x = u->sec.x - v->sec.x; - t->nano = unano - v->nano; - t->atto = uatto - v->atto; - if (t->atto > uatto) { - t->atto += 1000000000UL; - --t->nano; - } - if (t->nano > unano) { - t->nano += 1000000000UL; - --t->sec.x; - } -} - -/* XXX: breaks tai encapsulation */ -void taia_uint(struct taia *t, unsigned s) -{ - t->sec.x = s; - t->nano = 0; - t->atto = 0; -} - -static -uint64_t taia2millisec(const struct taia *t) -{ - return (t->sec.x * 1000) + (t->nano / 1000000); -} - -void iopause(iopause_fd *x, unsigned len, struct taia *deadline, struct taia *stamp) -{ - int millisecs; - int i; - - if (taia_less(deadline, stamp)) - millisecs = 0; - else { - uint64_t m; - struct taia t; - t = *stamp; - taia_sub(&t, deadline, &t); - millisecs = m = taia2millisec(&t); - if (m > 1000) millisecs = 1000; - millisecs += 20; - } - - for (i = 0; i < len; ++i) - x[i].revents = 0; - - poll(x, len, millisecs); - /* XXX: some kernels apparently need x[0] even if len is 0 */ - /* XXX: how to handle EAGAIN? are kernels really this dumb? */ - /* XXX: how to handle EINVAL? when exactly can this happen? */ -} -#endif - -int lock_ex(int fd) -{ - return flock(fd, LOCK_EX); -} - -int lock_exnb(int fd) -{ - return flock(fd, LOCK_EX | LOCK_NB); -} - -#ifdef UNUSED -int open_append(const char *fn) -{ - return open(fn, O_WRONLY | O_NDELAY | O_APPEND | O_CREAT, 0600); -} - -int open_trunc(const char *fn) -{ - return open(fn, O_WRONLY | O_NDELAY | O_TRUNC | O_CREAT, 0644); -} -#endif - -int open_read(const char *fn) -{ - return open(fn, O_RDONLY|O_NDELAY); -} - -int open_write(const char *fn) -{ - return open(fn, O_WRONLY|O_NDELAY); -} - -unsigned FAST_FUNC pmatch(const char *p, const char *s, unsigned len) -{ - for (;;) { - char c = *p++; - if (!c) return !len; - switch (c) { - case '*': - c = *p; - if (!c) return 1; - for (;;) { - if (!len) return 0; - if (*s == c) break; - ++s; - --len; - } - continue; - case '+': - c = *p++; - if (c != *s) return 0; - for (;;) { - if (!len) return 1; - if (*s != c) break; - ++s; - --len; - } - continue; - /* - case '?': - if (*p == '?') { - if (*s != '?') return 0; - ++p; - } - ++s; --len; - continue; - */ - default: - if (!len) return 0; - if (*s != c) return 0; - ++s; - --len; - continue; - } - } - return 0; -} diff --git a/runit/runit_lib.h b/runit/runit_lib.h index d8304ac..c36ea4c 100644 --- a/runit/runit_lib.h +++ b/runit/runit_lib.h @@ -27,59 +27,6 @@ ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN -//extern unsigned byte_chr(char *s,unsigned n,int c); -// -//struct tai { -// uint64_t x; -//}; -// -//#define tai_unix(t,u) ((void) ((t)->x = 0x400000000000000aULL + (uint64_t) (u))) -// -//#define TAI_PACK 8 -//extern void tai_unpack(const char *,struct tai *); -// -//extern void tai_uint(struct tai *,unsigned); -// -//struct taia { -// struct tai sec; -// unsigned long nano; /* 0...999999999 */ -// unsigned long atto; /* 0...999999999 */ -//}; -// -//extern void taia_now(struct taia *); -// -//extern void taia_add(struct taia *,const struct taia *,const struct taia *); -//extern void taia_addsec(struct taia *,const struct taia *,int); -//extern void taia_sub(struct taia *,const struct taia *,const struct taia *); -//extern void taia_half(struct taia *,const struct taia *); -//extern int taia_less(const struct taia *,const struct taia *); -// -//#define TAIA_PACK 16 -//extern void taia_pack(char *,const struct taia *); -// -//extern void taia_uint(struct taia *,unsigned); -// -//typedef struct pollfd iopause_fd; -//#define IOPAUSE_READ POLLIN -//#define IOPAUSE_WRITE POLLOUT -// -//extern void iopause(iopause_fd *,unsigned,struct taia *,struct taia *); - -extern int lock_ex(int); -//extern int lock_un(int); -extern int lock_exnb(int); - -extern int open_read(const char *); -extern int open_write(const char *); -//extern int open_excl(const char *); -//extern int open_append(const char *); -//extern int open_trunc(const char *); - -extern unsigned FAST_FUNC pmatch(const char *, const char *, unsigned); - -//#define str_diff(s,t) strcmp((s), (t)) -#define str_equal(s,t) (!strcmp((s), (t))) - /* * runsv / supervise / sv stuff */ diff --git a/runit/runsv.c b/runit/runsv.c index 6bb6ec8..ebb0318 100644 --- a/runit/runsv.c +++ b/runit/runsv.c @@ -524,7 +524,7 @@ int runsv_main(int argc UNUSED_PARAM, char **argv) } svd[0].fdlock = xopen3("log/supervise/lock"+4, O_WRONLY|O_NDELAY|O_APPEND|O_CREAT, 0600); - if (lock_exnb(svd[0].fdlock) == -1) + if (flock(svd[0].fdlock, LOCK_EX | LOCK_NB) == -1) fatal_cannot("lock supervise/lock"); close_on_exec_on(svd[0].fdlock); if (haslog) { @@ -548,7 +548,7 @@ int runsv_main(int argc UNUSED_PARAM, char **argv) } svd[1].fdlock = xopen3("log/supervise/lock", O_WRONLY|O_NDELAY|O_APPEND|O_CREAT, 0600); - if (lock_ex(svd[1].fdlock) == -1) + if (flock(svd[1].fdlock, LOCK_EX) == -1) fatal_cannot("lock log/supervise/lock"); close_on_exec_on(svd[1].fdlock); } @@ -618,7 +618,7 @@ int runsv_main(int argc UNUSED_PARAM, char **argv) pidchanged = 1; svd[0].ctrl &= ~C_TERM; if (svd[0].state != S_FINISH) { - fd = open_read("finish"); + fd = open("finish", O_RDONLY|O_NDELAY); if (fd != -1) { close(fd); svd[0].state = S_FINISH; diff --git a/runit/runsvdir.c b/runit/runsvdir.c index 71fde75..e77eeff 100644 --- a/runit/runsvdir.c +++ b/runit/runsvdir.c @@ -276,7 +276,7 @@ int runsvdir_main(int argc UNUSED_PARAM, char **argv) } run: #endif - curdir = open_read("."); + curdir = open(".", O_RDONLY|O_NDELAY); if (curdir == -1) fatal2_cannot("open current directory", ""); close_on_exec_on(curdir); @@ -176,6 +176,9 @@ struct globals { #define INIT_G() do { } while (0) +#define str_equal(s,t) (!strcmp((s), (t))) + + static void fatal_cannot(const char *m1) NORETURN; static void fatal_cannot(const char *m1) { @@ -221,7 +224,7 @@ static int svstatus_get(void) { int fd, r; - fd = open_write("supervise/ok"); + fd = open("supervise/ok", O_WRONLY|O_NDELAY); if (fd == -1) { if (errno == ENODEV) { *acts == 'x' ? ok("runsv not running") @@ -232,7 +235,7 @@ static int svstatus_get(void) return -1; } close(fd); - fd = open_read("supervise/status"); + fd = open("supervise/status", O_RDONLY|O_NDELAY); if (fd == -1) { warn("can't open supervise/status"); return -1; @@ -397,7 +400,7 @@ static int control(const char *a) if (svstatus.want == *a) return 0; */ - fd = open_write("supervise/control"); + fd = open("supervise/control", O_WRONLY|O_NDELAY); if (fd == -1) { if (errno != ENODEV) warn("can't open supervise/control"); @@ -446,7 +449,7 @@ int sv_main(int argc UNUSED_PARAM, char **argv) tnow = time(NULL) + 0x400000000000000aULL; tstart = tnow; - curdir = open_read("."); + curdir = open(".", O_RDONLY|O_NDELAY); if (curdir == -1) fatal_cannot("open current directory"); diff --git a/runit/svlogd.c b/runit/svlogd.c index 1f0a77c..052806c 100644 --- a/runit/svlogd.c +++ b/runit/svlogd.c @@ -261,6 +261,52 @@ static char* wstrdup(const char *str) return s; } +static unsigned pmatch(const char *p, const char *s, unsigned len) +{ + for (;;) { + char c = *p++; + if (!c) return !len; + switch (c) { + case '*': + c = *p; + if (!c) return 1; + for (;;) { + if (!len) return 0; + if (*s == c) break; + ++s; + --len; + } + continue; + case '+': + c = *p++; + if (c != *s) return 0; + for (;;) { + if (!len) return 1; + if (*s != c) break; + ++s; + --len; + } + continue; + /* + case '?': + if (*p == '?') { + if (*s != '?') return 0; + ++p; + } + ++s; --len; + continue; + */ + default: + if (!len) return 0; + if (*s != c) return 0; + ++s; + --len; + continue; + } + } + return 0; +} + /*** ex fmt_ptime.[ch] ***/ /* NUL terminated */ @@ -342,7 +388,7 @@ static void processorstart(struct logdir *ld) ld->fnsave[26] = 't'; /* <- that's why we need sv_ch! */ fd = xopen(ld->fnsave, O_WRONLY|O_NDELAY|O_TRUNC|O_CREAT); xmove_fd(fd, 1); - fd = open_read("state"); + fd = open("state", O_RDONLY|O_NDELAY); if (fd == -1) { if (errno != ENOENT) bb_perror_msg_and_die(FATAL"can't %s processor %s", "open state for", ld->name); @@ -626,7 +672,7 @@ static NOINLINE unsigned logdir_open(struct logdir *ld, const char *fn) } ld->fdlock = open("lock", O_WRONLY|O_NDELAY|O_APPEND|O_CREAT, 0600); if ((ld->fdlock == -1) - || (lock_exnb(ld->fdlock) == -1) + || (flock(ld->fdlock, LOCK_EX | LOCK_NB) == -1) ) { logdir_close(ld); warn2("can't lock directory", (char*)fn); |