bulk upload of source

1 files changed, 65 insertions, 0 deletions

diff --git a/pidfile.c b/pidfile.c
new file mode 100644
index 0000000..d8e14e6
--- /dev/null
+++ b/pidfile.c
@@ -0,0 +1,65 @@
+#include <unistd.h>
+#include <errno.h>
+#include <alloca.h>
+#include <fcntl.h>
+#include "ninitfeatures.h"
+#include "process_defs.h"
+
+static int infd, outfd;
+
+#include "open_inout.h"
+#include "tryservice.h"
+
+int main(int argc, char* argv[]) {
+  char *x, *initroot, **arg;
+  struct process pr[6];
+  unsigned long pidfile;
+  int count=0, pid, ret=1;
+
+  if (argc<4) die(1,
+	"usage: ninit-pidfile",
+	" service /var/run/daemon.pid [-H home] /sbin/daemon ...");
+  errmsg_iam("ninit-pidfile");
+
+  if (unlink(argv[2]) && errno != ENOENT)
+    die(1, "could not remove pid file: ", argv[2]);
+
+  arg = argv + 3;
+  x = arg[0];
+
+  if (argc > 5 && x[0] =='-' && x[1] =='H' && x[2] ==0) {
+    initroot = arg[1];
+    arg += 2;
+  } else
+    initroot = INITROOT;
+
+  while ((pid = fork()) < 0) nano_sleep(0, 500000000); /* 0.5 sec */
+
+  if (pid == 0) {
+    x = arg[0];
+
+    arg[0] = x + str_rchr(x,'/');
+    if (arg[0]) arg[0]++;
+    else        arg[0]=x;
+
+    execve(x,arg,environ);
+    die(3, "execve failed on: ", x);
+  }
+
+  while (1) {
+    if (read_ulongs(argv[2], &pidfile, 1)) {
+      if (str_len(argv[1]) > 320) ret=1;
+      else {
+	ret = tryservice(initroot,argv[1],"P",fu(pidfile), pr);
+	ret = (ret != sizeof(pr[0]) || pr->pid != (pid_t)pidfile);
+      }
+      break;
+    }
+    if (++count>=30) break;
+    else
+      nano_sleep(1, 0);
+  }
+
+  if (ret) carp("could not set PID of service ", argv[1]);
+  return ret;
+}