* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2014 */
+/* Copyright (c) University of Cambridge 1995 - 2016 */
/* 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
}
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);
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));
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);
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;
/*************
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;
#if !defined(OS_UNSETENV)
int
-os_unsetenv(const char *name)
+os_unsetenv(const unsigned char * name)
+{
+return unsetenv(CS name);
+}
+#endif
+
+/* ----------------------------------------------------------------------- */
+
+/***********************************************************
+* getcwd() *
+***********************************************************/
+
+/* Glibc allows getcwd(NULL, 0) to do auto-allocation. Some systems
+do auto-allocation, but need the size of the buffer, and others
+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)
+unsigned char *
+os_getcwd(unsigned char * buffer, size_t size)
{
- return unsetenv(name);
+return US getcwd(CS buffer, size);
}
+#else
+#ifndef PATH_MAX
+# define PATH_MAX 4096
#endif
+unsigned char *
+os_getcwd(unsigned char * buffer, size_t size)
+{
+char * b = CS buffer;
+if (!size) size = PATH_MAX;
+if (!b && !(b = malloc(size))) return NULL;
+if (!(b = getcwd(b, size))) return NULL;
+return buffer ? buffer : realloc(b, strlen(b) + 1);
+}
+#endif
/* ----------------------------------------------------------------------- */