X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Futils.c;h=6104fada3ab62b2007be2d5f4c835c06f963970a;hb=0912276c6467aa3ee6f570b31245367319da572a;hp=d0d106279268a3efb183fd2eeee386b2bf0b554f;hpb=7208397398f7e08d741bfa83594a88e5d01b6220;p=tinc

diff --git a/src/utils.c b/src/utils.c
index d0d10627..6104fada 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -45,11 +45,13 @@ static const char base64_decode[256] = {
 	        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
         };
 
-static int charhex2bin(char c) {
-	if(isdigit(c)) {
-		return c - '0';
+static uint8_t charhex2bin(char c) {
+	uint8_t cu = (uint8_t) c;
+
+	if(isdigit(cu)) {
+		return cu - '0';
 	} else {
-		return toupper(c) - 'A' + 10;
+		return toupper(cu) - 'A' + 10;
 	}
 }
 
@@ -57,7 +59,7 @@ size_t hex2bin(const char *src, void *vdst, size_t length) {
 	uint8_t *dst = vdst;
 	size_t i;
 
-	for(i = 0; i < length && isxdigit(src[i * 2]) && isxdigit(src[i * 2 + 1]); i++) {
+	for(i = 0; i < length && isxdigit((uint8_t) src[i * 2]) && isxdigit((uint8_t) src[i * 2 + 1]); i++) {
 		dst[i] = charhex2bin(src[i * 2]) * 16 + charhex2bin(src[i * 2 + 1]);
 	}
 
@@ -77,7 +79,7 @@ size_t bin2hex(const void *vsrc, char *dst, size_t length) {
 	return length * 2;
 }
 
-size_t b64decode(const char *src, void *dst, size_t length) {
+size_t b64decode_tinc(const char *src, void *dst, size_t length) {
 	size_t i;
 	uint32_t triplet = 0;
 	unsigned char *udst = (unsigned char *)dst;
@@ -117,7 +119,7 @@ size_t b64decode(const char *src, void *dst, size_t length) {
 	}
 }
 
-static size_t b64encode_internal(const void *src, char *dst, size_t length, const char *alphabet) {
+static size_t b64encode_tinc_internal(const void *src, char *dst, size_t length, const char *alphabet) {
 	uint32_t triplet;
 	const unsigned char *usrc = (unsigned char *)src;
 	size_t si = length / 3 * 3;
@@ -166,12 +168,12 @@ static size_t b64encode_internal(const void *src, char *dst, size_t length, cons
 	return length;
 }
 
-size_t b64encode(const void *src, char *dst, size_t length) {
-	return b64encode_internal(src, dst, length, base64_original);
+size_t b64encode_tinc(const void *src, char *dst, size_t length) {
+	return b64encode_tinc_internal(src, dst, length, base64_original);
 }
 
-size_t b64encode_urlsafe(const void *src, char *dst, size_t length) {
-	return b64encode_internal(src, dst, length, base64_urlsafe);
+size_t b64encode_tinc_urlsafe(const void *src, char *dst, size_t length) {
+	return b64encode_tinc_internal(src, dst, length, base64_urlsafe);
 }
 
 #ifdef HAVE_MINGW
@@ -210,7 +212,7 @@ bool check_id(const char *id) {
 	}
 
 	for(; *id; id++)
-		if(!isalnum(*id) && *id != '_') {
+		if(!isalnum((uint8_t) *id) && *id != '_') {
 			return false;
 		}
 
@@ -223,7 +225,7 @@ bool check_netname(const char *netname, bool strict) {
 	}
 
 	for(const char *c = netname; *c; c++) {
-		if(iscntrl(*c)) {
+		if(iscntrl((uint8_t) *c)) {
 			return false;
 		}
 
@@ -269,7 +271,7 @@ char *replace_name(const char *name) {
 		ret_name = xstrdup(envname);
 
 		for(char *c = ret_name; *c; c++)
-			if(!isalnum(*c)) {
+			if(!isalnum((uint8_t) *c)) {
 				*c = '_';
 			}
 	} else {
@@ -302,7 +304,7 @@ FILE *fopenmask(const char *filename, const char *mode, mode_t perms) {
 
 #ifdef HAVE_FCHMOD
 
-	if((perms & 0444) && f) {
+	if(perms & 0444) {
 		fchmod(fileno(f), perms);
 	}