Add restrict qualifiers to base64_decode and base64_encode

Author: LumioseSil

plugins/sudoers/b64_decode.c

@@ -54,7 +54,7 @@ static const unsigned char base64dec_tab[256]= {
  * result in dst.
  */
 size_t
-base64_decode(const char *in, unsigned char *out, size_t out_size)
+base64_decode(const char * restrict in, unsigned char * restrict out, size_t out_size)
 {
     unsigned char *out_end = out + out_size;
     const unsigned char *out0 = out;

plugins/sudoers/b64_encode.c

@@ -29,7 +29,7 @@ static const unsigned char base64enc_tab[64] =
     "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 
 size_t
-base64_encode(const unsigned char *in, size_t in_len, char *out, size_t out_len)
+base64_encode(const unsigned char * restrict in, size_t in_len, char * restrict out, size_t out_len)
 {
     size_t ii, io;
     unsigned int rem, v;

plugins/sudoers/parse.h

@@ -446,8 +446,8 @@ extern FILE *sudoersin;
 extern char *sudoers;
 
 /* base64.c */
-size_t base64_decode(const char *str, unsigned char *dst, size_t dsize);
-size_t base64_encode(const unsigned char *in, size_t in_len, char *out, size_t out_len);
+size_t base64_decode(const char * restrict str, unsigned char *dst, size_t dsize);
+size_t base64_encode(const unsigned char * restrict in, size_t in_len, char * restrict out, size_t out_len);
 
 /* timeout.c */
 int parse_timeout(const char *timestr);