1 files changed, 16 insertions, 2 deletions
diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index 628b8a0e1f09..186ee71f45d0 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -171,6 +171,7 @@ extern void (*_writeToStderr) (const unsigned char * buf, size_t count);
    requested number of bytes. */
 void readFull(int fd, unsigned char * buf, size_t count);
 void writeFull(int fd, const unsigned char * buf, size_t count);
+void writeFull(int fd, const string & s);
 
 MakeError(EndOfFile, Error)
 
@@ -269,8 +270,16 @@ void killUser(uid_t uid);
 
 /* Fork a process that runs the given function, and return the child
    pid to the caller. */
-pid_t startProcess(std::function<void()> fun, bool dieWithParent = true,
-    const string & errorPrefix = "error: ", bool runExitHandlers = false);
+struct ProcessOptions
+{
+    string errorPrefix;
+    bool dieWithParent;
+    bool runExitHandlers;
+    bool allowVfork;
+    ProcessOptions() : errorPrefix("error: "), dieWithParent(true), runExitHandlers(false), allowVfork(true) { };
+};
+
+pid_t startProcess(std::function<void()> fun, const ProcessOptions & options = ProcessOptions());
 
 
 /* Run a program and return its stdout in a string (i.e., like the
@@ -280,6 +289,11 @@ string runProgram(Path program, bool searchPath = false,
 
 MakeError(ExecError, Error)
 
+/* Convert a list of strings to a null-terminated vector of char
+   *'s. The result must not be accessed beyond the lifetime of the
+   list of strings. */
+std::vector<const char *> stringsToCharPtrs(const Strings & ss);
+
 /* Close all file descriptors except stdin, stdout, stderr, and those
    listed in the given set.  Good practice in child processes. */
 void closeMostFDs(const set<int> & exceptions);