1 files changed, 134 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/pathconf.c b/sysdeps/unix/sysv/linux/pathconf.c
index b4886158f3..d4159753a6 100644
--- a/sysdeps/unix/sysv/linux/pathconf.c
+++ b/sysdeps/unix/sysv/linux/pathconf.c
@@ -17,7 +17,10 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
+#include <unistd.h>
+#include <errno.h>
 #include "pathconf.h"
+#include "linux_fsinfo.h"
 
 static long int posix_pathconf (const char *file, int name);
 
@@ -35,15 +38,143 @@ __pathconf (const char *file, int name)
   switch (name)
     {
     case _PC_LINK_MAX:
-      return statfs_link_max (__statfs (file, &fsbuf), &fsbuf);
+      return __statfs_link_max (__statfs (file, &fsbuf), &fsbuf);
 
     case _PC_FILESIZEBITS:
-      return statfs_filesize_max (__statfs (file, &fsbuf), &fsbuf);
+      return __statfs_filesize_max (__statfs (file, &fsbuf), &fsbuf);
 
     case _PC_2_SYMLINKS:
-      return statfs_symlinks (__statfs (file, &fsbuf), &fsbuf);
+      return __statfs_symlinks (__statfs (file, &fsbuf), &fsbuf);
 
     default:
       return posix_pathconf (file, name);
     }
 }
+
+
+/* Used like: return statfs_link_max (__statfs (name, &buf), &buf); */
+long int
+__statfs_link_max (int result, const struct statfs *fsbuf)
+{
+  if (result < 0)
+    {
+      if (errno == ENOSYS)
+	/* Not possible, return the default value.  */
+	return LINUX_LINK_MAX;
+
+      /* Some error occured.  */
+      return -1;
+    }
+
+  switch (fsbuf->f_type)
+    {
+    case EXT2_SUPER_MAGIC:
+      return EXT2_LINK_MAX;
+
+    case MINIX_SUPER_MAGIC:
+    case MINIX_SUPER_MAGIC2:
+      return MINIX_LINK_MAX;
+
+    case MINIX2_SUPER_MAGIC:
+    case MINIX2_SUPER_MAGIC2:
+      return MINIX2_LINK_MAX;
+
+    case XENIX_SUPER_MAGIC:
+      return XENIX_LINK_MAX;
+
+    case SYSV4_SUPER_MAGIC:
+    case SYSV2_SUPER_MAGIC:
+      return SYSV_LINK_MAX;
+
+    case COH_SUPER_MAGIC:
+      return COH_LINK_MAX;
+
+    case UFS_MAGIC:
+    case UFS_CIGAM:
+      return UFS_LINK_MAX;
+
+    case REISERFS_SUPER_MAGIC:
+      return REISERFS_LINK_MAX;
+
+    case XFS_SUPER_MAGIC:
+      return XFS_LINK_MAX;
+
+    default:
+      return LINUX_LINK_MAX;
+    }
+}
+
+
+/* Used like: return statfs_filesize_max (__statfs (name, &buf), &buf); */
+long int
+__statfs_filesize_max (int result, const struct statfs *fsbuf)
+{
+  if (result < 0)
+    {
+      if (errno == ENOSYS)
+	/* Not possible, return the default value.  */
+	return 32;
+
+      /* Some error occured.  */
+      return -1;
+    }
+
+  switch (fsbuf->f_type)
+    {
+    case EXT2_SUPER_MAGIC:
+    case UFS_MAGIC:
+    case UFS_CIGAM:
+    case REISERFS_SUPER_MAGIC:
+    case XFS_SUPER_MAGIC:
+    case SMB_SUPER_MAGIC:
+    case NTFS_SUPER_MAGIC:
+    case UDF_SUPER_MAGIC:
+    case JFS_SUPER_MAGIC:
+      return 64;
+
+    case MSDOS_SUPER_MAGIC:
+    case JFFS_SUPER_MAGIC:
+    case JFFS2_SUPER_MAGIC:
+    case NCP_SUPER_MAGIC:
+    case ROMFS_SUPER_MAGIC:
+      return 32;
+
+    default:
+      return 32;
+    }
+}
+
+
+/* Used like: return statfs_link_max (__statfs (name, &buf), &buf); */
+long int
+__statfs_symlinks (int result, const struct statfs *fsbuf)
+{
+  if (result < 0)
+    {
+      if (errno == ENOSYS)
+	/* Not possible, return the default value.  */
+	return 1;
+
+      /* Some error occured.  */
+      return -1;
+    }
+
+  switch (fsbuf->f_type)
+    {
+    case ADFS_SUPER_MAGIC:
+    case BFS_MAGIC:
+    case CRAMFS_MAGIC:
+    case DEVPTS_SUPER_MAGIC:
+    case EFS_SUPER_MAGIC:
+    case EFS_MAGIC:
+    case MSDOS_SUPER_MAGIC:
+    case NTFS_SUPER_MAGIC:
+    case QNX4_SUPER_MAGIC:
+    case ROMFS_SUPER_MAGIC:
+      /* No symlink support.  */
+      return 0;
+
+    default:
+      return 1;
+    }
+}