firmware-utils: fix -Wpointer-sign warnings

[openwrt/staging/hauke.git] / tools / firmware-utils / src / dns313-header.c

diff --git a/tools/firmware-utils/src/dns313-header.c b/tools/firmware-utils/src/dns313-header.c
index c5c70e1bbcd28d3cfccc9fb20819acf7a121b8a0..42dd67771d81e19845f2024837390020c765c393 100644 (file)
--- a/tools/firmware-utils/src/dns313-header.c
+++ b/tools/firmware-utils/src/dns313-header.c
@@ -102,9 +102,11 @@ static const uint32_t crc32_table[256] = {
 };
 
 static uint32_t crc32(uint32_t crc,
-                     const unsigned char *buf,
+                     const void *data,
                      unsigned int len)
 {
+       const uint8_t *buf = data;
+
        crc = crc ^ 0xffffffffUL;
        do {
                crc = crc32_table[((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8);
@@ -112,7 +114,7 @@ static uint32_t crc32(uint32_t crc,
        return crc ^ 0xffffffffUL;
 }
 
-static void be_wr(unsigned char *buf, uint32_t val)
+static void be_wr(char *buf, uint32_t val)
 {
        buf[0] = (val >> 24) & 0xFFU;
        buf[1] = (val >> 16) & 0xFFU;
@@ -129,7 +131,7 @@ int main(int argc, char **argv)
        int ret = 0;
        const char *pathin;
        const char *pathout;
-       unsigned char *buffer;
+       char *buffer;
        uint32_t sum;
        size_t bufsize;
        size_t bytes;