diff options
Diffstat (limited to 'src/usertree/s6-usertree-maker.c')
| -rw-r--r-- | src/usertree/s6-usertree-maker.c | 219 |
1 files changed, 83 insertions, 136 deletions
diff --git a/src/usertree/s6-usertree-maker.c b/src/usertree/s6-usertree-maker.c index 3edbd8b..f8740aa 100644 --- a/src/usertree/s6-usertree-maker.c +++ b/src/usertree/s6-usertree-maker.c @@ -22,186 +22,139 @@ #include <s6/config.h> #include <s6/auto.h> -#define USAGE "s6-usertree-maker [ -d userscandir ] [ -p path ] [ -E envdir [ -e var ... ] ] [ -r service/logger[/pipeline] ] [ -l loguser ] [ -t stamptype ] [ -n nfiles ] [ -s filesize ] [ -S maxsize ] user logdir dir" +#define USAGE "s6-usertree-maker [ -d userscandir ] [ -p path ] [ -E envdir [ -e var ... ] ] [ -r service/logger[/pipeline] ] [ -l loguser ] [ -t stamptype ] [ -n nfiles ] [ -s filesize ] [ -S maxsize ] [ -P prefix ] user logdir dir" #define dieusage() strerr_dieusage(100, USAGE) #define VARS_MAX 64 -static mode_t mask ; static stralloc sa = STRALLOC_ZERO ; -static inline void write_run (char const *runfile, char const *user, char const *sc, char const *path, char const *userenvdir, char const *const *vars, size_t varlen) +typedef struct svinfo_s svinfo, *svinfo_ref ; +struct svinfo_s { - buffer b ; - char buf[2048] ; - int fd = open_trunc(runfile) ; - if (fd < 0) strerr_diefu3sys(111, "open ", runfile, " for writing") ; - buffer_init(&b, &buffer_write, fd, buf, 2048) ; - if (!string_quote(&sa, user, strlen(user))) goto errq ; - if (buffer_puts(&b, "#!" EXECLINE_SHEBANGPREFIX "execlineb -P\n" + char const *user ; + char const *sc ; + char const *logger ; + char const *path ; + char const *userenvdir ; + char const **vars ; + size_t varlen ; +} ; + +static int write_run (buffer *b, void *data) +{ + svinfo *t = data ; + if (!string_quote(&sa, t->user, strlen(t->user))) return 0 ; + if (buffer_puts(b, "#!" EXECLINE_SHEBANGPREFIX "execlineb -P\n" EXECLINE_EXTBINPREFIX "fdmove -c 2 1\n" EXECLINE_EXTBINPREFIX "emptyenv -p\n" EXECLINE_EXTBINPREFIX "export USER ") < 0 - || buffer_put(&b, sa.s, sa.len) < 0 - || buffer_puts(&b, "\n" + || buffer_put(b, sa.s, sa.len) < 0 + || buffer_puts(b, "\n" S6_EXTBINPREFIX "s6-envuidgid -i -- ") < 0 - || buffer_put(&b, sa.s, sa.len) < 0 - || buffer_puts(&b, "\n" + || buffer_put(b, sa.s, sa.len) < 0 + || buffer_puts(b, "\n" S6_EXTBINPREFIX "s6-applyuidgid -U --\n" EXECLINE_EXTBINPREFIX "backtick -in HOME { " EXECLINE_EXTBINPREFIX "homeof ") < 0 - || buffer_put(&b, sa.s, sa.len) < 0 - || buffer_put(&b, " }\n", 3) < 0) goto err ; + || buffer_put(b, sa.s, sa.len) < 0 + || buffer_put(b, " }\n", 3) < 0) goto err ; sa.len = 0 ; - if (userenvdir) + if (t->userenvdir) { - if (!string_quote(&sa, userenvdir, strlen(userenvdir))) goto errq ; - if (buffer_puts(&b, S6_EXTBINPREFIX "s6-envdir -i -- ") < 0 - || buffer_put(&b, sa.s, sa.len) < 0 - || buffer_put(&b, "\n", 1) < 0) goto err ; + if (!string_quote(&sa, t->userenvdir, strlen(t->userenvdir))) return 0 ; + if (buffer_puts(b, S6_EXTBINPREFIX "s6-envdir -i -- ") < 0 + || buffer_put(b, sa.s, sa.len) < 0 + || buffer_put(b, "\n", 1) < 0) goto err ; sa.len = 0 ; - if (varlen) + if (t->varlen) { - if (buffer_puts(&b, EXECLINE_EXTBINPREFIX "multisubstitute\n{\n") < 0) goto err ; - for (size_t i = 0 ; i < varlen ; i++) + if (buffer_puts(b, EXECLINE_EXTBINPREFIX "multisubstitute\n{\n") < 0) return 0 ; + for (size_t i = 0 ; i < t->varlen ; i++) { - if (!string_quote(&sa, vars[i], strlen(vars[i]))) goto errq ; - if (buffer_puts(&b, " importas -D \"\" -- ") < 0 - || buffer_put(&b, sa.s, sa.len) < 0 - || buffer_put(&b, " ", 1) < 0 - || buffer_put(&b, sa.s, sa.len) < 0 - || buffer_put(&b, "\n", 1) < 0) goto err ; + if (!string_quote(&sa, t->vars[i], strlen(t->vars[i]))) return 0 ; + if (buffer_puts(b, " importas -D \"\" -- ") < 0 + || buffer_put(b, sa.s, sa.len) < 0 + || buffer_put(b, " ", 1) < 0 + || buffer_put(b, sa.s, sa.len) < 0 + || buffer_put(b, "\n", 1) < 0) goto err ; sa.len = 0 ; } - if (buffer_put(&b, "}\n", 2) < 0) goto err ; + if (buffer_put(b, "}\n", 2) < 0) return 0 ; } } - if (buffer_puts(&b, EXECLINE_EXTBINPREFIX "multisubstitute\n{\n" + if (buffer_puts(b, EXECLINE_EXTBINPREFIX "multisubstitute\n{\n" " importas -i USER USER\n" " importas -i HOME HOME\n" " importas -i UID UID\n" " importas -i GID GID\n" - " importas -i GIDLIST GIDLIST\n}\n") < 0) goto err ; - if (userenvdir && varlen) + " importas -i GIDLIST GIDLIST\n}\n") < 0) return 0 ; + if (t->userenvdir && t->varlen) { - for (size_t i = 0 ; i < varlen ; i++) + for (size_t i = 0 ; i < t->varlen ; i++) { - if (!string_quote(&sa, vars[i], strlen(vars[i]))) goto errq ; - if (buffer_puts(&b, EXECLINE_EXTBINPREFIX "export ") < 0 - || buffer_put(&b, sa.s, sa.len) < 0 - || buffer_put(&b, " ${", 3) < 0 - || buffer_put(&b, sa.s, sa.len) < 0 - || buffer_put(&b, "}\n", 2) < 0) goto err ; + if (!string_quote(&sa, t->vars[i], strlen(t->vars[i]))) return 0 ; + if (buffer_puts(b, EXECLINE_EXTBINPREFIX "export ") < 0 + || buffer_put(b, sa.s, sa.len) < 0 + || buffer_put(b, " ${", 3) < 0 + || buffer_put(b, sa.s, sa.len) < 0 + || buffer_put(b, "}\n", 2) < 0) goto err ; sa.len = 0 ; } } - if (!string_quote(&sa, path, strlen(path))) goto errq ; - if (buffer_puts(&b, EXECLINE_EXTBINPREFIX "export PATH ") < 0 - || buffer_put(&b, sa.s, sa.len) < 0) goto err ; + if (!string_quote(&sa, t->path, strlen(t->path))) return 0 ; + if (buffer_puts(b, EXECLINE_EXTBINPREFIX "export PATH ") < 0 + || buffer_put(b, sa.s, sa.len) < 0) goto err ; sa.len = 0 ; - if (!string_quote(&sa, sc, strlen(sc))) goto errq ; - if (buffer_puts(&b, "\n" + if (!string_quote(&sa, t->sc, strlen(t->sc))) return 0 ; + if (buffer_puts(b, "\n" S6_EXTBINPREFIX "s6-svscan -d3 -- ") < 0 - || buffer_put(&b, sa.s, sa.len) < 0) goto err ; + || buffer_put(b, sa.s, sa.len) < 0) goto err ; sa.len = 0 ; - if (!buffer_putflush(&b, "\n", 1)) goto err ; - fd_close(fd) ; - return ; - err: - strerr_diefu2sys(111, "write to ", runfile) ; - errq: - strerr_diefu1sys(111, "quote string") ; -} + if (!buffer_putflush(b, "\n", 1)) return 0 ; + return 1 ; -static void write_service (char const *dir, char const *user, char const *sc, char const *logger, char const *path, char const *userenvdir, char const *const *vars, size_t varlen) -{ - size_t dirlen = strlen(dir) ; - char fn[dirlen + 17] ; - memcpy(fn, dir, dirlen) ; - memcpy(fn + dirlen, "/notification-fd", 17) ; - if (!openwritenclose_unsafe(fn, "3\n", 2)) strerr_diefu2sys(111, "write to ", fn) ; - memcpy(fn + dirlen + 1, "run", 4) ; - write_run(fn, user, sc, path, userenvdir, vars, varlen) ; - if (logger) - { - struct iovec v[2] = { { .iov_base = (char *)logger, .iov_len = strlen(logger) }, { .iov_base = "\n", .iov_len = 1 } } ; - memcpy(fn + dirlen + 1, "type", 5) ; - if (!openwritenclose_unsafe(fn, "longrun\n", 8)) strerr_diefu2sys(111, "write to ", fn) ; - memcpy(fn + dirlen + 1, "producer-for", 13) ; - if (!openwritevnclose_unsafe(fn, v, 2)) strerr_diefu2sys(111, "write to ", fn) ; - } - else - { - if (chmod(fn, mask | ((mask >> 2) & 0111)) < 0) - strerr_diefu2sys(111, "chmod ", fn) ; - } -} - -static void write_logger (char const *dir, char const *user, char const *logdir, unsigned int stamptype, unsigned int nfiles, uint64_t filesize, uint64_t maxsize, char const *service, char const *pipelinename) -{ - size_t dirlen = strlen(dir) ; - char fn[dirlen + 17] ; - memcpy(fn, dir, dirlen) ; - memcpy(fn + dirlen, "/notification-fd", 17) ; - if (!openwritenclose_unsafe(fn, "3\n", 2)) goto err ; - memcpy(fn + dirlen + 1, "run", 4) ; - if (!s6_auto_write_logrun(fn, user, logdir, stamptype, nfiles, filesize, maxsize, &sa)) goto err ; - if (service) - { - struct iovec v[2] = { { .iov_base = (char *)service, .iov_len = strlen(service) }, { .iov_base = "\n", .iov_len = 1 } } ; - memcpy(fn + dirlen + 1, "type", 5) ; - if (!openwritenclose_unsafe(fn, "longrun\n", 8)) goto err ; - memcpy(fn + dirlen + 1, "consumer-for", 13) ; - if (!openwritevnclose_unsafe(fn, v, 2)) goto err ; - if (pipelinename) - { - v[0].iov_base = (char *)pipelinename ; - v[0].iov_len = strlen(pipelinename) ; - memcpy(fn + dirlen + 1, "pipeline-name", 14) ; - if (!openwritevnclose_unsafe(fn, v, 2)) goto err ; - } - } - else - { - if (chmod(fn, mask | ((mask >> 2) & 0111)) < 0) - strerr_diefu2sys(111, "chmod ", fn) ; - } - return ; err: - strerr_diefu2sys(111, "write to ", fn) ; + sa.len = 0 ; + return 0 ; } int main (int argc, char *const *argv) { - char const *userscandir = "${HOME}/service" ; - char const *path = SKALIBS_DEFAULTPATH ; - char const *userenvdir = 0 ; + char const *vars[VARS_MAX] ; + svinfo t = + { + .sc = "${HOME}/service", + .logger = 0, + .path = SKALIBS_DEFAULTPATH, + .userenvdir = 0, + .vars = vars, + .varlen = 0 + } ; char *rcinfo[3] = { 0, 0, 0 } ; char const *loguser = 0 ; unsigned int stamptype = 1 ; unsigned int nfiles = 10 ; uint64_t filesize = 1000000 ; uint64_t maxsize = 0 ; + char const *prefix = 0 ; size_t dirlen ; - size_t varlen = 0 ; - mode_t m ; - char const *vars[VARS_MAX] ; PROG = "s6-usertree-maker" ; { subgetopt l = SUBGETOPT_ZERO ; for (;;) { - int opt = subgetopt_r(argc, (char const *const *)argv, "d:p:E:e:r:l:t:n:s:S:", &l) ; + int opt = subgetopt_r(argc, (char const *const *)argv, "d:p:E:e:r:l:t:n:s:S:P:", &l) ; if (opt == -1) break ; switch (opt) { - case 'd' : userscandir = l.arg ; break ; - case 'p' : path = l.arg ; break ; - case 'E' : userenvdir = l.arg ; break ; + case 'd' : t.sc = l.arg ; break ; + case 'p' : t.path = l.arg ; break ; + case 'E' : t.userenvdir = l.arg ; break ; case 'e' : - if (varlen >= VARS_MAX) strerr_dief1x(100, "too many -v variables") ; + if (t.varlen >= VARS_MAX) strerr_dief1x(100, "too many -v variables") ; if (strchr(l.arg, '=')) strerr_dief2x(100, "invalid variable name: ", l.arg) ; - vars[varlen++] = l.arg ; + t.vars[t.varlen++] = l.arg ; break ; case 'r' : rcinfo[0] = (char *)l.arg ; break ; case 'l' : loguser = l.arg ; break ; @@ -209,6 +162,7 @@ int main (int argc, char *const *argv) case 'n' : if (!uint0_scan(l.arg, &nfiles)) dieusage() ; break ; case 's' : if (!uint640_scan(l.arg, &filesize)) dieusage() ; break ; case 'S' : if (!uint640_scan(l.arg, &maxsize)) dieusage() ; break ; + case 'P' : prefix = l.arg ; break ; default : dieusage() ; } } @@ -216,7 +170,7 @@ int main (int argc, char *const *argv) } if (argc < 3) dieusage() ; if (argv[1][0] != '/') strerr_dief1x(100, "logdir must be absolute") ; - if (userscandir[0] != '/' && !str_start(userscandir, "${HOME}/")) + if (t.sc[0] != '/' && !str_start(t.sc, "${HOME}/")) strerr_dief1x(100, "userscandir must be absolute or start with ${HOME}/") ; if (stamptype > 3) strerr_dief1x(100, "stamptype must be 0, 1, 2 or 3") ; if (rcinfo[0]) @@ -239,8 +193,7 @@ int main (int argc, char *const *argv) if (strchr(rcinfo[2], '/')) strerr_dief2x(100, "slashes", " are forbidden in s6-rc names") ; } } - m = umask(0) ; - mask = ~m & 0666 ; + t.user = argv[0] ; dirlen = strlen(argv[2]) ; if (rcinfo[0]) @@ -252,25 +205,19 @@ int main (int argc, char *const *argv) dir[dirlen] = '/' ; if (mkdir(argv[2], 0755) < 0 && errno != EEXIST) strerr_diefu2sys(111, "mkdir ", argv[2]) ; + t.logger = rcinfo[1] ; memcpy(dir + dirlen + 1, rcinfo[0], svclen + 1) ; - if (mkdir(dir, 0755) < 0) strerr_diefu2sys(111, "mkdir ", dir) ; + s6_auto_write_service(dir, 3, &write_run, &t, rcinfo[1]) ; memcpy(dir + dirlen + 1, rcinfo[1], loglen + 1) ; - if (mkdir(dir, 0755) < 0) strerr_diefu2sys(111, "mkdir ", dir) ; - umask(m) ; - write_logger(dir, loguser, argv[1], stamptype, nfiles, filesize, maxsize, rcinfo[0], rcinfo[2]) ; - memcpy(dir + dirlen + 1, rcinfo[0], svclen + 1) ; - write_service(dir, argv[0], userscandir, rcinfo[1], path, userenvdir, vars, varlen) ; + s6_auto_write_logger_tmp(dir, loguser, argv[1], stamptype, nfiles, filesize, maxsize, prefix, rcinfo[0], rcinfo[2], &sa) ; } else { char dir[dirlen + 5] ; memcpy(dir, argv[2], dirlen) ; memcpy(dir + dirlen, "/log", 5) ; - if (mkdir(argv[2], 0755) < 0) strerr_diefu2sys(111, "mkdir ", argv[2]) ; - if (mkdir(dir, 0755) < 0) strerr_diefu2sys(111, "mkdir ", argv[2]) ; - umask(m) ; - write_service(argv[2], argv[0], userscandir, 0, path, userenvdir, vars, varlen) ; - write_logger(dir, loguser, argv[1], stamptype, nfiles, filesize, maxsize, 0, 0) ; + s6_auto_write_service(argv[2], 3, &write_run, &t, 0) ; + s6_auto_write_logger_tmp(dir, loguser, argv[1], stamptype, nfiles, filesize, maxsize, prefix, 0, 0, &sa) ; } return 0 ; } |