Constify some input pointers

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>

lib/libalpm/diskspace.c

@@ -359,7 +359,7 @@ static int check_mountpoint(alpm_handle_t *handle, alpm_mountpoint_t *mp)
 }
 
 int _alpm_check_downloadspace(alpm_handle_t *handle, const char *cachedir,
-		size_t num_files, off_t *file_sizes)
+		size_t num_files, const off_t *file_sizes)
 {
 	alpm_list_t *mount_points;
 	alpm_mountpoint_t *cachedir_mp;

lib/libalpm/diskspace.h

@@ -58,6 +58,6 @@ typedef struct __alpm_mountpoint_t {
 
 int _alpm_check_diskspace(alpm_handle_t *handle);
 int _alpm_check_downloadspace(alpm_handle_t *handle, const char *cachedir,
-		size_t num_files, off_t *file_sizes);
+		size_t num_files, const off_t *file_sizes);
 
 #endif /* ALPM_DISKSPACE_H */

lib/libalpm/util.c

@@ -1006,7 +1006,7 @@ static int sha256_file(const char *path, unsigned char output[32])
  * @return a NULL terminated string with the hexadecimal representation of
  * bytes or NULL on error. This string must be freed.
  */
-static char *hex_representation(unsigned char *bytes, size_t size)
+static char *hex_representation(const unsigned char *bytes, size_t size)
 {
 	static const char *hex_digits = "0123456789abcdef";
 	char *str;

src/pacman/util.c

@@ -515,7 +515,7 @@ void string_display(const char *title, const char *string, unsigned short cols)
 }
 
 static void table_print_line(const alpm_list_t *line, short col_padding,
-		size_t colcount, size_t *widths, int *has_data)
+		size_t colcount, const size_t *widths, const int *has_data)
 {
 	size_t i;
 	int need_padding = 0;