zlibWrapper: convert to C89 / ANSI C

Clang 16 (which is the system compiler in FreeBSD 14.0) no longer allows
K&R function definitions.  Formatting of the changes matches current
zlib.

zlibWrapper/gzread.c

@@ -29,12 +29,8 @@ local z_size_t gz_read _Z_OF((gz_statep, voidp, z_size_t));
    state.state->fd, and update state.state->eof, state.state->err, and state.state->msg as appropriate.
    This function needs to loop on read(), since read() is not guaranteed to
    read the number of bytes requested, depending on the type of descriptor. */
-local int gz_load(state, buf, len, have)
-    gz_statep state;
-    unsigned char *buf;
-    unsigned len;
-    unsigned *have;
-{
+local int gz_load(gz_statep state, unsigned char *buf, unsigned len,
+                  unsigned *have) {
     ssize_t ret;
     unsigned get, max = ((unsigned)-1 >> 2) + 1;
 
@@ -64,8 +60,7 @@ local int gz_load(state, buf, len, have)
    If strm->avail_in != 0, then the current data is moved to the beginning of
    the input buffer, and then the remainder of the buffer is loaded with the
    available data from the input file. */
-local int gz_avail(state)
-    gz_statep state;
+local int gz_avail(gz_statep state)
 {
     unsigned got;
     z_streamp strm = &(state.state->strm);
@@ -99,9 +94,7 @@ local int gz_avail(state)
    case, all further file reads will be directly to either the output buffer or
    a user buffer.  If decompressing, the inflate state will be initialized.
    gz_look() will return 0 on success or -1 on failure. */
-local int gz_look(state)
-    gz_statep state;
-{
+local int gz_look(gz_statep state) {
     z_streamp strm = &(state.state->strm);
 
     /* allocate read buffers and inflate memory */
@@ -184,9 +177,7 @@ local int gz_look(state)
    data.  If the gzip stream completes, state.state->how is reset to LOOK to look for
    the next gzip stream or raw data, once state.state->x.have is depleted.  Returns 0
    on success, -1 on failure. */
-local int gz_decomp(state)
-    gz_statep state;
-{
+local int gz_decomp(gz_statep state) {
     int ret = Z_OK;
     unsigned had;
     z_streamp strm = &(state.state->strm);
@@ -238,9 +229,7 @@ local int gz_decomp(state)
    looked for to determine whether to copy or decompress.  Returns -1 on error,
    otherwise 0.  gz_fetch() will leave state.state->how as COPY or GZIP unless the
    end of the input file has been reached and all data has been processed.  */
-local int gz_fetch(state)
-    gz_statep state;
-{
+local int gz_fetch(gz_statep state) {
     z_streamp strm = &(state.state->strm);
 
     do {
@@ -268,10 +257,7 @@ local int gz_fetch(state)
 }
 
 /* Skip len uncompressed bytes of output.  Return -1 on error, 0 on success. */
-local int gz_skip(state, len)
-    gz_statep state;
-    z_off64_t len;
-{
+local int gz_skip(gz_statep state, z_off64_t len) {
     unsigned n;
 
     /* skip over len bytes or reach end-of-file, whichever comes first */
@@ -303,11 +289,7 @@ local int gz_skip(state, len)
    input.  Return the number of bytes read.  If zero is returned, either the
    end of file was reached, or there was an error.  state.state->err must be
    consulted in that case to determine which. */
-local z_size_t gz_read(state, buf, len)
-    gz_statep state;
-    voidp buf;
-    z_size_t len;
-{
+local z_size_t gz_read(gz_statep state, voidp buf, z_size_t len) {
     z_size_t got;
     unsigned n;
 
@@ -384,11 +366,7 @@ local z_size_t gz_read(state, buf, len)
 }
 
 /* -- see zlib.h -- */
-int ZEXPORT gzread(file, buf, len)
-    gzFile file;
-    voidp buf;
-    unsigned len;
-{
+int ZEXPORT gzread(gzFile file, voidp buf, unsigned len) {
     gz_statep state;
 
     /* get internal structure */
@@ -420,12 +398,8 @@ int ZEXPORT gzread(file, buf, len)
 }
 
 /* -- see zlib.h -- */
-z_size_t ZEXPORT gzfread(buf, size, nitems, file)
-    voidp buf;
-    z_size_t size;
-    z_size_t nitems;
-    gzFile file;
-{
+z_size_t ZEXPORT gzfread(voidp buf, z_size_t size, z_size_t nitems,
+                         gzFile file) {
     z_size_t len;
     gz_statep state;
 
@@ -468,9 +442,7 @@ ZEXTERN int ZEXPORT gzgetc _Z_OF((gzFile file));
 ZEXTERN int ZEXPORT gzgetc_ _Z_OF((gzFile file));
 #endif
 
-int ZEXPORT gzgetc(file)
-    gzFile file;
-{
+int ZEXPORT gzgetc(gzFile file) {
     int ret;
     unsigned char buf[1];
     gz_statep state;
@@ -497,17 +469,12 @@ int ZEXPORT gzgetc(file)
     return ret < 1 ? -1 : buf[0];
 }
 
-int ZEXPORT gzgetc_(file)
-gzFile file;
-{
+int ZEXPORT gzgetc_(gzFile file) {
     return gzgetc(file);
 }
 
 /* -- see zlib.h -- */
-int ZEXPORT gzungetc(c, file)
-    int c;
-    gzFile file;
-{
+int ZEXPORT gzungetc(int c, gzFile file) {
     gz_statep state;
 
     /* get internal structure */
@@ -564,11 +531,7 @@ int ZEXPORT gzungetc(c, file)
 }
 
 /* -- see zlib.h -- */
-char * ZEXPORT gzgets(file, buf, len)
-    gzFile file;
-    char *buf;
-    int len;
-{
+char * ZEXPORT gzgets(gzFile file, char *buf, int len) {
     unsigned left, n;
     char *str;
     unsigned char *eol;
@@ -628,9 +591,7 @@ char * ZEXPORT gzgets(file, buf, len)
 }
 
 /* -- see zlib.h -- */
-int ZEXPORT gzdirect(file)
-    gzFile file;
-{
+int ZEXPORT gzdirect(gzFile file) {
     gz_statep state;
 
     /* get internal structure */
@@ -648,9 +609,7 @@ int ZEXPORT gzdirect(file)
 }
 
 /* -- see zlib.h -- */
-int ZEXPORT gzclose_r(file)
-    gzFile file;
-{
+int ZEXPORT gzclose_r(gzFile file) {
     int ret, err;
     gz_statep state;