diff options
Diffstat (limited to 'src/conn-tools/s6-accessrules-cdb-from-fs.c')
| -rw-r--r-- | src/conn-tools/s6-accessrules-cdb-from-fs.c | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/src/conn-tools/s6-accessrules-cdb-from-fs.c b/src/conn-tools/s6-accessrules-cdb-from-fs.c deleted file mode 100644 index 82da64c..0000000 --- a/src/conn-tools/s6-accessrules-cdb-from-fs.c +++ /dev/null @@ -1,195 +0,0 @@ -/* ISC license. */ - -#include <unistd.h> -#include <errno.h> -#include <stdio.h> /* for rename() */ -#include <skalibs/bytestr.h> -#include <skalibs/uint16.h> -#include <skalibs/fmtscan.h> -#include <skalibs/cdb_make.h> -#include <skalibs/strerr2.h> -#include <skalibs/stralloc.h> -#include <skalibs/direntry.h> -#include <skalibs/djbunix.h> -#include <skalibs/skamisc.h> -#include <skalibs/random.h> - -#define USAGE "s6-accessrules-cdb-from-fs cdbfile dir" - -static stralloc tmp = STRALLOC_ZERO ; - -static void cleanup (void) -{ - register int e = errno ; - unlink(tmp.s) ; - errno = e ; -} - -static void dienomem (void) -{ - cleanup() ; - strerr_diefu1sys(111, "stralloc_catb") ; -} - -static void doit (struct cdb_make *c, stralloc *sa, unsigned int start) -{ - unsigned int tmpbase = tmp.len ; - unsigned int k = sa->len ; - if (!stralloc_readyplus(sa, 10)) dienomem() ; - stralloc_catb(sa, "/allow", 7) ; - tmp.s[tmpbase] = 0 ; - if (access(sa->s, R_OK) < 0) - { - if ((errno != ENOENT) && (errno != EACCES)) - { - cleanup() ; - strerr_diefu2sys(111, "access ", sa->s) ; - } - sa->len = k+1 ; - stralloc_catb(sa, "deny", 5) ; - if (access(sa->s, R_OK) < 0) - if ((errno != ENOENT) && (errno != EACCES)) - { - cleanup() ; - strerr_diefu2sys(111, "access ", sa->s) ; - } - else return ; - else if (cdb_make_add(c, sa->s + start, k - start, "D", 1) < 0) - { - cleanup() ; - strerr_diefu1sys(111, "cdb_make_add") ; - } - } - else - { - uint16 envlen = 0 ; - uint16 execlen = 0 ; - register int r ; - tmp.s[tmpbase] = 'A' ; - sa->len = k+1 ; - stralloc_catb(sa, "env", 4) ; - tmp.len = tmpbase + 3 ; - if ((envdir(sa->s, &tmp) < 0) && (errno != ENOENT)) - { - cleanup() ; - strerr_diefu2sys(111, "s6_envdir ", sa->s) ; - } - if (tmp.len > tmpbase + 4103) - { - cleanup() ; - strerr_diefu2sys(100, sa->s, "too big") ; - } - envlen = tmp.len - tmpbase - 3 ; - tmp.len = tmpbase ; - uint16_pack_big(tmp.s + tmpbase + 1, envlen) ; - sa->len = k+1 ; - stralloc_catb(sa, "exec", 5) ; - r = openreadnclose(sa->s, tmp.s + tmpbase + 5 + envlen, 4096) ; - if ((r < 0) && (errno != ENOENT)) - { - cleanup() ; - strerr_diefu2sys(111, "openreadnclose ", sa->s) ; - } - if (r > 0) execlen = r ; - uint16_pack_big(tmp.s + tmpbase + 3 + envlen, execlen) ; - if (cdb_make_add(c, sa->s + start, k - start, tmp.s + tmpbase, 5 + envlen + execlen) < 0) - { - cleanup() ; - strerr_diefu1sys(111, "cdb_make_add") ; - } - } -} - - -int main (int argc, char const *const *argv) -{ - stralloc sa = STRALLOC_ZERO ; - struct cdb_make c = CDB_MAKE_ZERO ; - DIR *dir ; - unsigned int start ; - int fd ; - PROG = "s6-accessrules-cdb-from-fs" ; - if (argc < 3) strerr_dieusage(100, USAGE) ; - if (!stralloc_cats(&tmp, argv[1])) return 0 ; - if (random_sauniquename(&tmp, 8) < 0) - strerr_diefu1sys(111, "random_sauniquename") ; - if (!stralloc_readyplus(&tmp, 8210)) - strerr_diefu1sys(111, "stralloc_catb") ; - stralloc_0(&tmp) ; - fd = open_trunc(tmp.s) ; - if (fd < 0) strerr_diefu2sys(111, "open_trunc ", tmp.s) ; - if (cdb_make_start(&c, fd) < 0) - { - cleanup() ; - strerr_diefu1sys(111, "cdb_make_start") ; - } - dir = opendir(argv[2]) ; - if (!dir) - { - cleanup() ; - strerr_diefu2sys(111, "opendir ", argv[2]) ; - } - if (!stralloc_cats(&sa, argv[2]) || !stralloc_catb(&sa, "/", 1)) dienomem() ; - start = sa.len ; - - for (;;) - { - DIR *subdir ; - direntry *d ; - unsigned int base ; - errno = 0 ; - d = readdir(dir) ; - if (!d) break ; - if (d->d_name[0] == '.') continue ; - sa.len = start ; - if (!stralloc_cats(&sa, d->d_name) || !stralloc_0(&sa)) dienomem() ; - base = sa.len ; - subdir = opendir(sa.s) ; - if (!subdir) - { - cleanup() ; - strerr_diefu2sys(111, "opendir ", sa.s) ; - } - sa.s[base-1] = '/' ; - for (;;) - { - errno = 0 ; - d = readdir(subdir) ; - if (!d) break ; - if (d->d_name[0] == '.') continue ; - sa.len = base ; - if (!stralloc_cats(&sa, d->d_name)) dienomem() ; - doit(&c, &sa, start) ; - } - if (errno) - { - sa.s[base-1] = 0 ; - cleanup() ; - strerr_diefu2sys(111, "readdir ", sa.s) ; - } - dir_close(subdir) ; - } - if (errno) - { - cleanup() ; - strerr_diefu2sys(111, "readdir ", argv[2]) ; - } - dir_close(dir) ; - if (cdb_make_finish(&c) < 0) - { - cleanup() ; - strerr_diefu1sys(111, "cdb_make_finish") ; - } - if (fd_sync(fd) < 0) - { - cleanup() ; - strerr_diefu1sys(111, "fd_sync") ; - } - fd_close(fd) ; - if (rename(tmp.s, argv[1]) < 0) - { - cleanup() ; - strerr_diefu4sys(111, "rename ", tmp.s, " to ", argv[1]) ; - } - return 0 ; -} |