X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fsrc%2Fos.c;h=6e88b844a51bfa80c4cec0efcd4111df3186528e;hb=ffbc20ed9c9ed09a68ff0a608f623c3c83d521a8;hp=d40fb606d0e06c547649466db83d3e3a84977b70;hpb=3ae121c94f0dfaeba5938de26931c49e29677d0a;p=user%2Fhenk%2Fcode%2Fexim.git

diff --git a/src/src/os.c b/src/src/os.c
index d40fb606d..6e88b844a 100644
--- a/src/src/os.c
+++ b/src/src/os.c
@@ -2,13 +2,18 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2014 */
+/* Copyright (c) University of Cambridge 1995 - 2018 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 #ifdef STAND_ALONE
-#include <signal.h>
-#include <stdio.h>
-#include <time.h>
+# include <signal.h>
+# include <stdio.h>
+# include <time.h>
+#endif
+
+#ifndef CS
+# define CS (char *)
+# define US (unsigned char *)
 #endif
 
 /* This source file contains "default" system-dependent functions which
@@ -413,7 +418,7 @@ if (avg_kd < 0)
   }
 
 if (lseek (avg_kd, avg_offset, 0) == -1L
-    || read (avg_kd, (char *)(&avg), sizeof (avg)) != sizeof(avg))
+    || read (avg_kd, CS (&avg), sizeof (avg)) != sizeof(avg))
   return -1;
 
 return (int)(((double)avg/FSCALE)*1000.0);
@@ -645,7 +650,7 @@ ifc.V_ifc_family = V_FAMILY_QUERY;
 ifc.V_ifc_flags = 0;
 #endif
 
-if (ioctl(vs, V_GIFCONF, (char *)&ifc) < 0)
+if (ioctl(vs, V_GIFCONF, CS &ifc) < 0)
   log_write(0, LOG_PANIC_DIE, "Unable to get interface configuration: %d %s",
     errno, strerror(errno));
 
@@ -680,7 +685,7 @@ find its length, and then recopy the correct length. */
 
 for (cp = buf; cp < buf + ifc.V_ifc_len; cp += len)
   {
-  memcpy((char *)&ifreq, cp, sizeof(ifreq));
+  memcpy(CS &ifreq, cp, sizeof(ifreq));
 
   #ifndef HAVE_SA_LEN
   len = sizeof(struct V_ifreq);
@@ -710,7 +715,7 @@ for (cp = buf; cp < buf + ifc.V_ifc_len; cp += len)
   interface hasn't been "plumbed" to any protocol (IPv4 or IPv6). Therefore,
   we now just treat this case as "down" as well. */
 
-  if (ioctl(vs, V_GIFFLAGS, (char *)&ifreq) < 0)
+  if (ioctl(vs, V_GIFFLAGS, CS &ifreq) < 0)
     {
     continue;
     /*************
@@ -726,7 +731,7 @@ for (cp = buf; cp < buf + ifc.V_ifc_len; cp += len)
   GIFFLAGS may have wrecked the data. */
 
   #ifndef SIOCGIFCONF_GIVES_ADDR
-  if (ioctl(vs, V_GIFADDR, (char *)&ifreq) < 0)
+  if (ioctl(vs, V_GIFADDR, CS &ifreq) < 0)
     log_write(0, LOG_PANIC_DIE, "Unable to get IP address for %s interface: "
       "%d %s", ifreq.V_ifr_name, errno, strerror(errno));
   addrp = &ifreq.V_ifr_addr;
@@ -844,9 +849,9 @@ os_get_dns_resolver_res(void)
 
 #if !defined(OS_UNSETENV)
 int
-os_unsetenv(const char *name)
+os_unsetenv(const unsigned char * name)
 {
-  return unsetenv(name);
+return unsetenv(CS name);
 }
 #endif
 
@@ -862,24 +867,24 @@ may not even do this. If the OS supports getcwd(NULL, 0) we'll use
 this, for all other systems we provide our own getcwd() */
 
 #if !defined(OS_GETCWD)
-char *
-os_getcwd(char *buffer, size_t size)
+unsigned char *
+os_getcwd(unsigned char * buffer, size_t size)
 {
-return getcwd(buffer, size);
+return US  getcwd(CS buffer, size);
 }
 #else
 #ifndef PATH_MAX
 # define PATH_MAX 4096
 #endif
-char *
-os_getcwd(char *buffer, size_t size)
+unsigned char *
+os_getcwd(unsigned char * buffer, size_t size)
 {
-void *rc;
+char * b = CS buffer;
 
 if (!size) size = PATH_MAX;
-if (!buffer && !(buffer = (char*) malloc(size))) return NULL;
-if (!(buffer = getcwd(buffer, size))) return NULL;
-return realloc(buffer, strlen(buffer) + 1);
+if (!b && !(b = malloc(size))) return NULL;
+if (!(b = getcwd(b, size))) return NULL;
+return buffer ? buffer : realloc(b, strlen(b) + 1);
 }
 #endif