"const correctness" cleanup

added the following default flags:
  -Wformat
  -Wformat-security
  -Wmultichar
  -Wwrite-strings
fixed several other warnings

1 files changed, 5 insertions, 5 deletions

diff --git a/src/htsserver.h b/src/htsserver.h
index 3690bce..7daeec0 100644
--- a/src/htsserver.h
+++ b/src/htsserver.h
@@ -100,7 +100,7 @@ int htslang_uninit(void);
 
 /* Static definitions */
 
-HTS_UNUSED static char *gethomedir(void);
+HTS_UNUSED static const char *gethomedir(void);
 HTS_UNUSED static int linput_cpp(FILE * fp, char *s, int max);
 HTS_UNUSED static int linput_trim(FILE * fp, char *s, int max);
 HTS_UNUSED static int fexist(const char *s);
@@ -163,8 +163,8 @@ HTS_UNUSED static int linputsoc_t(T_SOC soc, char *s, int max, int timeout) {
   return -1;
 }
 
-static char *gethomedir(void) {
-  char *home = getenv("HOME");
+static const char *gethomedir(void) {
+  const char *home = getenv("HOME");
 
   if (home)
     return home;
@@ -267,11 +267,11 @@ static int ehexh(char c) {
   return 0;
 }
 
-static int ehex(char *s) {
+static int ehex(const char *s) {
   return 16 * ehexh(*s) + ehexh(*(s + 1));
 }
 
-HTS_UNUSED static void unescapehttp(char *s, String * tempo) {
+HTS_UNUSED static void unescapehttp(const char *s, String * tempo) {
   size_t i;
 
   for(i = 0; s[i] != '\0'; i++) {