Ensure everything compiles with -Wall without giving warnings.

[meshlink] / src / utils.c

diff --git a/src/utils.c b/src/utils.c
index 5111fe1da03d5f8a0334f7488eee380a8527f866..e45e5942d8a477a82e08924ba59e727c1feca4ff 100644 (file)
--- a/src/utils.c
+++ b/src/utils.c
@@ -51,14 +51,16 @@ static int charhex2bin(char c) {
                return toupper(c) - 'A' + 10;
 }
 
-int hex2bin(const char *src, char *dst, int length) {
+int hex2bin(const char *src, void *vdst, int length) {
+       uint8_t *dst = vdst;
        int i;
        for(i = 0; i < length && isxdigit(src[i * 2]) && isxdigit(src[i * 2 + 1]); i++)
                dst[i] = charhex2bin(src[i * 2]) * 16 + charhex2bin(src[i * 2 + 1]);
        return i;
 }
 
-int bin2hex(const char *src, char *dst, int length) {
+int bin2hex(const void *vsrc, char *dst, int length) {
+       const uint8_t *src = vsrc;
        for(int i = length - 1; i >= 0; i--) {
                dst[i * 2 + 1] = hexadecimals[(unsigned char) src[i] & 15];
                dst[i * 2] = hexadecimals[(unsigned char) src[i] >> 4];
@@ -67,10 +69,10 @@ int bin2hex(const char *src, char *dst, int length) {
        return length * 2;
 }
 
-int b64decode(const char *src, char *dst, int length) {
+int b64decode(const char *src, void *dst, int length) {
        int i;
        uint32_t triplet = 0;
-       unsigned char *udst = (unsigned char *)dst;
+       unsigned char *udst = dst;
 
        for(i = 0; i < length / 3 * 4 && src[i]; i++) {
                triplet |= base64_decode[src[i] & 0xff] << (6 * (i & 3));
@@ -98,9 +100,9 @@ int b64decode(const char *src, char *dst, int length) {
        }
 }
 
-static int b64encode_internal(const char *src, char *dst, int length, const char *alphabet) {
+static int b64encode_internal(const void *src, char *dst, int length, const char *alphabet) {
        uint32_t triplet;
-       const unsigned char *usrc = (unsigned char *)src;
+       const unsigned char *usrc = src;
        int si = length / 3 * 3;
        int di = length / 3 * 4;
 
@@ -139,11 +141,11 @@ static int b64encode_internal(const char *src, char *dst, int length, const char
        return length;
 }
 
-int b64encode(const char *src, char *dst, int length) {
+int b64encode(const void *src, char *dst, int length) {
        return b64encode_internal(src, dst, length, base64_original);
 }
 
-int b64encode_urlsafe(const char *src, char *dst, int length) {
+int b64encode_urlsafe(const void *src, char *dst, int length) {
        return b64encode_internal(src, dst, length, base64_urlsafe);
 }