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authorLuke Shumaker <lukeshu@sbcglobal.net>2016-06-17 20:09:33 -0400
committerLuke Shumaker <lukeshu@sbcglobal.net>2016-06-17 20:09:33 -0400
commit4d12729aa4026229e4e118b924cc3b1c75ca214b (patch)
treeabd9a69ec11504844148b1017f9e9601ef7e90b8 /test
parent4f175a22cf726bfa09652d8d9ca6374785561348 (diff)
write setuid, move things around
Diffstat (limited to 'test')
-rw-r--r--test/.gitignore1
-rw-r--r--test/runner.c168
2 files changed, 0 insertions, 169 deletions
diff --git a/test/.gitignore b/test/.gitignore
deleted file mode 100644
index 09230a9..0000000
--- a/test/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/runner
diff --git a/test/runner.c b/test/runner.c
deleted file mode 100644
index 110819d..0000000
--- a/test/runner.c
+++ /dev/null
@@ -1,168 +0,0 @@
-/* Copyright (C) 2015 Luke Shumaker <lukeshu@sbcglobal.net>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301 USA
- */
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <error.h>
-#include <errno.h>
-#include <stdarg.h>
-#include <signal.h>
-#include <unistd.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-
-#define _(s) s
-
-const char *xgetenv(const char *name, const char *unset) {
- const char *val = getenv(name);
- if (!val)
- val = unset;
- return val;
-}
-
-char *xasprintf(const char *format, ...) {
- va_list arg;
- int len;
- char *str = NULL;
-
- va_start(arg, format);
- len = vasprintf(&str, format, arg);
- va_end(arg);
-
- if (len < 0)
- error(EXIT_FAILURE, errno, _("Could not allocate memory in vasprintf"));
-
- return str;
-}
-
-#define xasprintfa(...) (__extension__ ({ char *heap = xasprintf(__VA_ARGS__); char *stack = strdupa(heap); free(heap); stack; }))
-
-int pid = -1;
-void
-sigchld_handler(int sig __attribute__((__unused__))) {
- int status;
- pid = waitpid(pid, &status, WNOHANG);
- int exited = WEXITSTATUS(status);
- error(exited, 0, "%ld exited with status %d", (long)pid, exited);
- exit(0);
-}
-
-union addr {
- struct sockaddr gen;
- struct sockaddr_un un;
-};
-
-int new_unix_sock(const char *filename, int type) {
- union addr addr;
- addr.un.sun_family = AF_UNIX;
- strcpy(addr.un.sun_path, filename);
-
- int sock = socket(AF_UNIX, type, 0);
- if (sock < 0)
- error(EXIT_FAILURE, errno, "socket(%d, %d)", AF_UNIX, type);
- unlink(filename);
- if (bind(sock, &addr.gen, sizeof(addr)))
- error(EXIT_FAILURE, errno, "bind(%d, sockaddr(\"%s\"))", sock, filename);
- switch (type) {
- case SOCK_STREAM:
- case SOCK_SEQPACKET:
- if (listen(sock, 5))
- error(EXIT_FAILURE, errno, "listen(%d /* \"%s\" */, %d)", sock, filename, 5);
- break;
- case SOCK_DGRAM:
- break;
- default:
- error(EXIT_FAILURE, errno, "new_unix_sock: Unrecognized type: %d", type);
- }
- return sock;
-}
-
-char *cmdname = "nshd_runner";
-const char *notify_sockname = "notify.sock";
-const char *nslcd_sockname = "nslcd.sock";
-void cleanup(void) {
- if (nslcd_sockname)
- unlink(nslcd_sockname);
- if (notify_sockname)
- unlink(notify_sockname);
- fprintf(stderr, "%s: Exiting\n", cmdname);
-}
-
-int main(int argc, char *argv[]) {
- cmdname = argv[0];
- if (argc != 2) {
- error(2, 0, _("Usage: %s NSHD_PROGRAM"), argv[0]);
- }
-
- atexit(&cleanup);
- int nslcd_sock = new_unix_sock(nslcd_sockname , SOCK_STREAM);
- int notify_sock = new_unix_sock(notify_sockname, SOCK_DGRAM );
-
- struct sigaction act;
- sigemptyset(&act.sa_mask);
- act.sa_flags = SA_RESTART;
- act.sa_handler = sigchld_handler;
- if (sigaction(SIGCHLD, &act, 0))
- error(EXIT_FAILURE, errno, "sigaction");
-
-
- pid = fork();
- switch (pid) {
- case -1:
- error(EXIT_FAILURE, errno, "fork");
- case 0:
- close(notify_sock);
- dup2(nslcd_sock, 3);
- if (nslcd_sock != 3)
- close(nslcd_sock);
- pid = getpid();
- setenv("LISTEN_PID", xasprintfa("%ld", (long)pid), 1);
- setenv("LISTEN_FDS", "1", 1);
- setenv("NOTIFY_SOCKET", notify_sockname, 1);
- execl(argv[1], argv[1], NULL);
- error(EXIT_FAILURE, errno, "execl");
- }
-
- while (1) {
- union addr client_addr;
- socklen_t client_size;
- char buf[4097];
- ssize_t bytes_read = recvfrom(notify_sock, buf, sizeof(buf)-1, 0, &client_addr.gen, &client_size);
- if (bytes_read < 1)
- error(EXIT_FAILURE, errno, "recvfrom");
- if (buf[bytes_read-1] != '\n') {
- buf[bytes_read] = '\n';
- bytes_read++;
- }
- ssize_t bytes_written = 0;
- while (bytes_written < bytes_read) {
- ssize_t n = write(2, &(buf[bytes_written]), bytes_read-bytes_written);
- if (n < 0) {
- bytes_written = -1;
- break;
- }
- bytes_written += n;
- }
- if (bytes_written < 0)
- error(EXIT_FAILURE, errno, "write");
- }
- error(EXIT_FAILURE, 0, "not reached");
- return EXIT_FAILURE;
-}