X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=src%2Fdropin.c;h=552998bc279fb96b97d6174226380fedd982016b;hb=4c57e6902219ecca1872e18e34365d8e54a0f407;hp=eb17acaad082ecb40d489bd5f7c0022cdadcd7d7;hpb=574b380dfc75ef13ee4accba1f2416165c58a5a2;p=meshlink

diff --git a/src/dropin.c b/src/dropin.c
index eb17acaa..552998bc 100644
--- a/src/dropin.c
+++ b/src/dropin.c
@@ -1,7 +1,6 @@
 /*
     dropin.c -- a set of drop-in replacements for libc functions
-    Copyright (C) 2000-2005 Ivo Timmermans,
-                  2000-2011 Guus Sliepen <guus@tinc-vpn.org>
+    Copyright (C) 2014 Guus Sliepen <guus@meshlink.io>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -22,104 +21,6 @@
 
 #include "xalloc.h"
 
-#ifndef HAVE_DAEMON
-/*
-  Replacement for the daemon() function.
-  
-  The daemon() function is for programs wishing to detach themselves
-  from the controlling terminal and run in the background as system
-  daemons.
-
-  Unless the argument nochdir is non-zero, daemon() changes the
-  current working directory to the root (``/'').
-
-  Unless the argument noclose is non-zero, daemon() will redirect
-  standard input, standard output and standard error to /dev/null.
-*/
-int daemon(int nochdir, int noclose) {
-#ifdef HAVE_FORK
-	pid_t pid;
-	int fd;
-
-	pid = fork();
-
-	/* Check if forking failed */
-	if(pid < 0) {
-		perror("fork");
-		exit(-1);
-	}
-
-	/* If we are the parent, terminate */
-	if(pid)
-		exit(0);
-
-	/* Detach by becoming the new process group leader */
-	if(setsid() < 0) {
-		perror("setsid");
-		return -1;
-	}
-
-	/* Change working directory to the root (to avoid keeping mount
-	   points busy) */
-	if(!nochdir) {
-		chdir("/");
-	}
-
-	/* Redirect stdin/out/err to /dev/null */
-	if(!noclose) {
-		fd = open("/dev/null", O_RDWR);
-
-		if(fd < 0) {
-			perror("opening /dev/null");
-			return -1;
-		} else {
-			dup2(fd, 0);
-			dup2(fd, 1);
-			dup2(fd, 2);
-		}
-	}
-
-	return 0;
-#else
-	return -1;
-#endif
-}
-#endif
-
-#ifndef HAVE_GET_CURRENT_DIR_NAME
-/*
-  Replacement for the GNU get_current_dir_name function:
-
-  get_current_dir_name will malloc(3) an array big enough to hold the
-  current directory name.  If the environment variable PWD is set, and
-  its value is correct, then that value will be returned.
-*/
-char *get_current_dir_name(void) {
-	size_t size;
-	char *buf;
-	char *r;
-
-	/* Start with 100 bytes.  If this turns out to be insufficient to
-	   contain the working directory, double the size.  */
-	size = 100;
-	buf = xmalloc(size);
-
-	errno = 0;					/* Success */
-	r = getcwd(buf, size);
-
-	/* getcwd returns NULL and sets errno to ERANGE if the bufferspace
-	   is insufficient to contain the entire working directory.  */
-	while(r == NULL && errno == ERANGE) {
-		free(buf);
-		size <<= 1;				/* double the size */
-		buf = xmalloc(size);
-		r = getcwd(buf, size);
-	}
-
-	return buf;
-}
-#endif
-
 #ifndef HAVE_ASPRINTF
 int asprintf(char **buf, const char *fmt, ...) {
 	int result;
@@ -142,8 +43,9 @@ int vasprintf(char **buf, const char *fmt, va_list ap) {
 	status = vsnprintf(*buf, len, fmt, aq);
 	va_end(aq);
 
-	if(status >= 0)
+	if(status >= 0) {
 		*buf = xrealloc(*buf, status + 1);
+	}
 
 	if(status > len - 1) {
 		len = status;
@@ -155,19 +57,3 @@ int vasprintf(char **buf, const char *fmt, va_list ap) {
 	return status;
 }
 #endif
-
-#ifndef HAVE_GETTIMEOFDAY
-int gettimeofday(struct timeval *tv, void *tz) {
-	tv->tv_sec = time(NULL);
-	tv->tv_usec = 0;
-	return 0;
-}
-#endif
-
-#ifndef HAVE_USLEEP
-int usleep(long long usec) {
-	struct timeval tv = {usec / 1000000, (usec / 1000) % 1000};
-	select(0, NULL, NULL, NULL, &tv);
-	return 0;
-}
-#endif