Libc-498.tar.gz

[apple/libc.git] / gen / FreeBSD / gethostname.c.patch

diff --git a/gen/FreeBSD/gethostname.c.patch b/gen/FreeBSD/gethostname.c.patch
new file mode 100644 (file)
index 0000000..018f8bb
--- /dev/null
+++ b/gen/FreeBSD/gethostname.c.patch
@@ -0,0 +1,33 @@
+--- gethostname.c.orig 2004-11-25 11:38:01.000000000 -0800
++++ gethostname.c      2005-09-15 09:46:13.000000000 -0700
+@@ -39,6 +39,7 @@ __FBSDID("$FreeBSD: src/lib/libc/gen/get
+ 
+ #include <sys/param.h>
+ #include <sys/sysctl.h>
++#include <limits.h>
+ 
+ #include <errno.h>
+ 
+@@ -54,10 +55,22 @@ gethostname(name, namelen)
+ 
+       mib[0] = CTL_KERN;
+       mib[1] = KERN_HOSTNAME;
++      if (namelen < MAXHOSTNAMELEN + 1) {
++              char local_buf[MAXHOSTNAMELEN + 1];
++              size_t local_len = sizeof(local_buf);
++              if (sysctl(mib, 2, local_buf, &local_len, NULL, 0) == -1) {
++                      if (errno == ENOMEM)
++                              errno = ENAMETOOLONG;
++                      return (-1);
++              }
++              strncpy(name, local_buf, namelen);
++              name[namelen - 1] = 0;
++      } else {
+       if (sysctl(mib, 2, name, &namelen, NULL, 0) == -1) {
+               if (errno == ENOMEM)
+                       errno = ENAMETOOLONG;
+               return (-1);
++              }
+       }
+       return (0);
+ }