minus 3 warnings

git-svn-id: http://svn.miranda-ng.org/main/trunk@14964 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c

1 files changed, 508 insertions, 508 deletions

diff --git a/libs/zlib/src/gzread.c b/libs/zlib/src/gzread.c
index bf4538eb27..cd994301a8 100644
--- a/libs/zlib/src/gzread.c
+++ b/libs/zlib/src/gzread.c
@@ -5,7 +5,7 @@
 
 #include "gzguts.h"
 
-/* Local functions */
+ /* Local functions */
 local int gz_load OF((gz_statep, unsigned char *, unsigned, unsigned *));
 local int gz_avail OF((gz_statep));
 local int gz_look OF((gz_statep));
@@ -14,368 +14,368 @@ local int gz_fetch OF((gz_statep));
 local int gz_skip OF((gz_statep, z_off64_t));
 
 /* Use read() to load a buffer -- return -1 on error, otherwise 0.  Read from
-   state->fd, and update state->eof, state->err, and 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. */
+	state->fd, and update state->eof, state->err, and 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;
+gz_statep state;
+unsigned char *buf;
+unsigned len;
+unsigned *have;
 {
-    int ret;
-
-    *have = 0;
-    do {
-        ret = read(state->fd, buf + *have, len - *have);
-        if (ret <= 0)
-            break;
-        *have += ret;
-    } while (*have < len);
-    if (ret < 0) {
-        gz_error(state, Z_ERRNO, zstrerror());
-        return -1;
-    }
-    if (ret == 0)
-        state->eof = 1;
-    return 0;
+	int ret;
+
+	*have = 0;
+	do {
+		ret = read(state->fd, buf + *have, len - *have);
+		if (ret <= 0)
+			break;
+		*have += ret;
+	} while (*have < len);
+	if (ret < 0) {
+		gz_error(state, Z_ERRNO, zstrerror());
+		return -1;
+	}
+	if (ret == 0)
+		state->eof = 1;
+	return 0;
 }
 
 /* Load up input buffer and set eof flag if last data loaded -- return -1 on
-   error, 0 otherwise.  Note that the eof flag is set when the end of the input
-   file is reached, even though there may be unused data in the buffer.  Once
-   that data has been used, no more attempts will be made to read the file.
-   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. */
+	error, 0 otherwise.  Note that the eof flag is set when the end of the input
+	file is reached, even though there may be unused data in the buffer.  Once
+	that data has been used, no more attempts will be made to read the file.
+	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;
+gz_statep state;
 {
-    unsigned got;
-    z_streamp strm = &(state->strm);
-
-    if (state->err != Z_OK && state->err != Z_BUF_ERROR)
-        return -1;
-    if (state->eof == 0) {
-        if (strm->avail_in) {       /* copy what's there to the start */
-            unsigned char *p = state->in;
-            unsigned const char *q = strm->next_in;
-            unsigned n = strm->avail_in;
-            do {
-                *p++ = *q++;
-            } while (--n);
-        }
-        if (gz_load(state, state->in + strm->avail_in,
-                    state->size - strm->avail_in, &got) == -1)
-            return -1;
-        strm->avail_in += got;
-        strm->next_in = state->in;
-    }
-    return 0;
+	unsigned got;
+	z_streamp strm = &(state->strm);
+
+	if (state->err != Z_OK && state->err != Z_BUF_ERROR)
+		return -1;
+	if (state->eof == 0) {
+		if (strm->avail_in) {       /* copy what's there to the start */
+			unsigned char *p = state->in;
+			unsigned const char *q = strm->next_in;
+			unsigned n = strm->avail_in;
+			do {
+				*p++ = *q++;
+			} while (--n);
+		}
+		if (gz_load(state, state->in + strm->avail_in,
+			state->size - strm->avail_in, &got) == -1)
+			return -1;
+		strm->avail_in += got;
+		strm->next_in = state->in;
+	}
+	return 0;
 }
 
 /* Look for gzip header, set up for inflate or copy.  state->x.have must be 0.
-   If this is the first time in, allocate required memory.  state->how will be
-   left unchanged if there is no more input data available, will be set to COPY
-   if there is no gzip header and direct copying will be performed, or it will
-   be set to GZIP for decompression.  If direct copying, then leftover input
-   data from the input buffer will be copied to the output buffer.  In that
-   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. */
+	If this is the first time in, allocate required memory.  state->how will be
+	left unchanged if there is no more input data available, will be set to COPY
+	if there is no gzip header and direct copying will be performed, or it will
+	be set to GZIP for decompression.  If direct copying, then leftover input
+	data from the input buffer will be copied to the output buffer.  In that
+	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;
+gz_statep state;
 {
-    z_streamp strm = &(state->strm);
-
-    /* allocate read buffers and inflate memory */
-    if (state->size == 0) {
-        /* allocate buffers */
-        state->in = (unsigned char *)malloc(state->want);
-        state->out = (unsigned char *)malloc(state->want << 1);
-        if (state->in == NULL || state->out == NULL) {
-            if (state->out != NULL)
-                free(state->out);
-            if (state->in != NULL)
-                free(state->in);
-            gz_error(state, Z_MEM_ERROR, "out of memory");
-            return -1;
-        }
-        state->size = state->want;
-
-        /* allocate inflate memory */
-        state->strm.zalloc = Z_NULL;
-        state->strm.zfree = Z_NULL;
-        state->strm.opaque = Z_NULL;
-        state->strm.avail_in = 0;
-        state->strm.next_in = Z_NULL;
-        if (inflateInit2(&(state->strm), 15 + 16) != Z_OK) {    /* gunzip */
-            free(state->out);
-            free(state->in);
-            state->size = 0;
-            gz_error(state, Z_MEM_ERROR, "out of memory");
-            return -1;
-        }
-    }
-
-    /* get at least the magic bytes in the input buffer */
-    if (strm->avail_in < 2) {
-        if (gz_avail(state) == -1)
-            return -1;
-        if (strm->avail_in == 0)
-            return 0;
-    }
-
-    /* look for gzip magic bytes -- if there, do gzip decoding (note: there is
-       a logical dilemma here when considering the case of a partially written
-       gzip file, to wit, if a single 31 byte is written, then we cannot tell
-       whether this is a single-byte file, or just a partially written gzip
-       file -- for here we assume that if a gzip file is being written, then
-       the header will be written in a single operation, so that reading a
-       single byte is sufficient indication that it is not a gzip file) */
-    if (strm->avail_in > 1 &&
-            strm->next_in[0] == 31 && strm->next_in[1] == 139) {
-        inflateReset(strm);
-        state->how = GZIP;
-        state->direct = 0;
-        return 0;
-    }
-
-    /* no gzip header -- if we were decoding gzip before, then this is trailing
-       garbage.  Ignore the trailing garbage and finish. */
-    if (state->direct == 0) {
-        strm->avail_in = 0;
-        state->eof = 1;
-        state->x.have = 0;
-        return 0;
-    }
-
-    /* doing raw i/o, copy any leftover input to output -- this assumes that
-       the output buffer is larger than the input buffer, which also assures
-       space for gzungetc() */
-    state->x.next = state->out;
-    if (strm->avail_in) {
-        memcpy(state->x.next, strm->next_in, strm->avail_in);
-        state->x.have = strm->avail_in;
-        strm->avail_in = 0;
-    }
-    state->how = COPY;
-    state->direct = 1;
-    return 0;
+	z_streamp strm = &(state->strm);
+
+	/* allocate read buffers and inflate memory */
+	if (state->size == 0) {
+		/* allocate buffers */
+		state->in = (unsigned char *)malloc(state->want);
+		state->out = (unsigned char *)malloc(state->want << 1);
+		if (state->in == NULL || state->out == NULL) {
+			if (state->out != NULL)
+				free(state->out);
+			if (state->in != NULL)
+				free(state->in);
+			gz_error(state, Z_MEM_ERROR, "out of memory");
+			return -1;
+		}
+		state->size = state->want;
+
+		/* allocate inflate memory */
+		state->strm.zalloc = Z_NULL;
+		state->strm.zfree = Z_NULL;
+		state->strm.opaque = Z_NULL;
+		state->strm.avail_in = 0;
+		state->strm.next_in = Z_NULL;
+		if (inflateInit2(&(state->strm), 15 + 16) != Z_OK) {    /* gunzip */
+			free(state->out);
+			free(state->in);
+			state->size = 0;
+			gz_error(state, Z_MEM_ERROR, "out of memory");
+			return -1;
+		}
+	}
+
+	/* get at least the magic bytes in the input buffer */
+	if (strm->avail_in < 2) {
+		if (gz_avail(state) == -1)
+			return -1;
+		if (strm->avail_in == 0)
+			return 0;
+	}
+
+	/* look for gzip magic bytes -- if there, do gzip decoding (note: there is
+		a logical dilemma here when considering the case of a partially written
+		gzip file, to wit, if a single 31 byte is written, then we cannot tell
+		whether this is a single-byte file, or just a partially written gzip
+		file -- for here we assume that if a gzip file is being written, then
+		the header will be written in a single operation, so that reading a
+		single byte is sufficient indication that it is not a gzip file) */
+	if (strm->avail_in > 1 &&
+		strm->next_in[0] == 31 && strm->next_in[1] == 139) {
+		inflateReset(strm);
+		state->how = GZIP;
+		state->direct = 0;
+		return 0;
+	}
+
+	/* no gzip header -- if we were decoding gzip before, then this is trailing
+		garbage.  Ignore the trailing garbage and finish. */
+	if (state->direct == 0) {
+		strm->avail_in = 0;
+		state->eof = 1;
+		state->x.have = 0;
+		return 0;
+	}
+
+	/* doing raw i/o, copy any leftover input to output -- this assumes that
+		the output buffer is larger than the input buffer, which also assures
+		space for gzungetc() */
+	state->x.next = state->out;
+	if (strm->avail_in) {
+		memcpy(state->x.next, strm->next_in, strm->avail_in);
+		state->x.have = strm->avail_in;
+		strm->avail_in = 0;
+	}
+	state->how = COPY;
+	state->direct = 1;
+	return 0;
 }
 
 /* Decompress from input to the provided next_out and avail_out in the state.
-   On return, state->x.have and state->x.next point to the just decompressed
-   data.  If the gzip stream completes, state->how is reset to LOOK to look for
-   the next gzip stream or raw data, once state->x.have is depleted.  Returns 0
-   on success, -1 on failure. */
+	On return, state->x.have and state->x.next point to the just decompressed
+	data.  If the gzip stream completes, state->how is reset to LOOK to look for
+	the next gzip stream or raw data, once state->x.have is depleted.  Returns 0
+	on success, -1 on failure. */
 local int gz_decomp(state)
-    gz_statep state;
+gz_statep state;
 {
-    int ret = Z_OK;
-    unsigned had;
-    z_streamp strm = &(state->strm);
-
-    /* fill output buffer up to end of deflate stream */
-    had = strm->avail_out;
-    do {
-        /* get more input for inflate() */
-        if (strm->avail_in == 0 && gz_avail(state) == -1)
-            return -1;
-        if (strm->avail_in == 0) {
-            gz_error(state, Z_BUF_ERROR, "unexpected end of file");
-            break;
-        }
-
-        /* decompress and handle errors */
-        ret = inflate(strm, Z_NO_FLUSH);
-        if (ret == Z_STREAM_ERROR || ret == Z_NEED_DICT) {
-            gz_error(state, Z_STREAM_ERROR,
-                     "internal error: inflate stream corrupt");
-            return -1;
-        }
-        if (ret == Z_MEM_ERROR) {
-            gz_error(state, Z_MEM_ERROR, "out of memory");
-            return -1;
-        }
-        if (ret == Z_DATA_ERROR) {              /* deflate stream invalid */
-            gz_error(state, Z_DATA_ERROR,
-                     strm->msg == NULL ? "compressed data error" : strm->msg);
-            return -1;
-        }
-    } while (strm->avail_out && ret != Z_STREAM_END);
-
-    /* update available output */
-    state->x.have = had - strm->avail_out;
-    state->x.next = strm->next_out - state->x.have;
-
-    /* if the gzip stream completed successfully, look for another */
-    if (ret == Z_STREAM_END)
-        state->how = LOOK;
-
-    /* good decompression */
-    return 0;
+	int ret = Z_OK;
+	unsigned had;
+	z_streamp strm = &(state->strm);
+
+	/* fill output buffer up to end of deflate stream */
+	had = strm->avail_out;
+	do {
+		/* get more input for inflate() */
+		if (strm->avail_in == 0 && gz_avail(state) == -1)
+			return -1;
+		if (strm->avail_in == 0) {
+			gz_error(state, Z_BUF_ERROR, "unexpected end of file");
+			break;
+		}
+
+		/* decompress and handle errors */
+		ret = inflate(strm, Z_NO_FLUSH);
+		if (ret == Z_STREAM_ERROR || ret == Z_NEED_DICT) {
+			gz_error(state, Z_STREAM_ERROR,
+				"internal error: inflate stream corrupt");
+			return -1;
+		}
+		if (ret == Z_MEM_ERROR) {
+			gz_error(state, Z_MEM_ERROR, "out of memory");
+			return -1;
+		}
+		if (ret == Z_DATA_ERROR) {              /* deflate stream invalid */
+			gz_error(state, Z_DATA_ERROR,
+				strm->msg == NULL ? "compressed data error" : strm->msg);
+			return -1;
+		}
+	} while (strm->avail_out && ret != Z_STREAM_END);
+
+	/* update available output */
+	state->x.have = had - strm->avail_out;
+	state->x.next = strm->next_out - state->x.have;
+
+	/* if the gzip stream completed successfully, look for another */
+	if (ret == Z_STREAM_END)
+		state->how = LOOK;
+
+	/* good decompression */
+	return 0;
 }
 
 /* Fetch data and put it in the output buffer.  Assumes state->x.have is 0.
-   Data is either copied from the input file or decompressed from the input
-   file depending on state->how.  If state->how is LOOK, then a gzip header is
-   looked for to determine whether to copy or decompress.  Returns -1 on error,
-   otherwise 0.  gz_fetch() will leave state->how as COPY or GZIP unless the
-   end of the input file has been reached and all data has been processed.  */
+	Data is either copied from the input file or decompressed from the input
+	file depending on state->how.  If state->how is LOOK, then a gzip header is
+	looked for to determine whether to copy or decompress.  Returns -1 on error,
+	otherwise 0.  gz_fetch() will leave 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;
+gz_statep state;
 {
-    z_streamp strm = &(state->strm);
-
-    do {
-        switch(state->how) {
-        case LOOK:      /* -> LOOK, COPY (only if never GZIP), or GZIP */
-            if (gz_look(state) == -1)
-                return -1;
-            if (state->how == LOOK)
-                return 0;
-            break;
-        case COPY:      /* -> COPY */
-            if (gz_load(state, state->out, state->size << 1, &(state->x.have))
-                    == -1)
-                return -1;
-            state->x.next = state->out;
-            return 0;
-        case GZIP:      /* -> GZIP or LOOK (if end of gzip stream) */
-            strm->avail_out = state->size << 1;
-            strm->next_out = state->out;
-            if (gz_decomp(state) == -1)
-                return -1;
-        }
-    } while (state->x.have == 0 && (!state->eof || strm->avail_in));
-    return 0;
+	z_streamp strm = &(state->strm);
+
+	do {
+		switch (state->how) {
+		case LOOK:      /* -> LOOK, COPY (only if never GZIP), or GZIP */
+			if (gz_look(state) == -1)
+				return -1;
+			if (state->how == LOOK)
+				return 0;
+			break;
+		case COPY:      /* -> COPY */
+			if (gz_load(state, state->out, state->size << 1, &(state->x.have))
+				== -1)
+				return -1;
+			state->x.next = state->out;
+			return 0;
+		case GZIP:      /* -> GZIP or LOOK (if end of gzip stream) */
+			strm->avail_out = state->size << 1;
+			strm->next_out = state->out;
+			if (gz_decomp(state) == -1)
+				return -1;
+		}
+	} while (state->x.have == 0 && (!state->eof || strm->avail_in));
+	return 0;
 }
 
 /* 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;
+gz_statep state;
+z_off64_t len;
 {
-    unsigned n;
-
-    /* skip over len bytes or reach end-of-file, whichever comes first */
-    while (len)
-        /* skip over whatever is in output buffer */
-        if (state->x.have) {
-            n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > len ?
-                (unsigned)len : state->x.have;
-            state->x.have -= n;
-            state->x.next += n;
-            state->x.pos += n;
-            len -= n;
-        }
-
-        /* output buffer empty -- return if we're at the end of the input */
-        else if (state->eof && state->strm.avail_in == 0)
-            break;
-
-        /* need more data to skip -- load up output buffer */
-        else {
-            /* get more output, looking for header if required */
-            if (gz_fetch(state) == -1)
-                return -1;
-        }
-    return 0;
+	unsigned n;
+
+	/* skip over len bytes or reach end-of-file, whichever comes first */
+	while (len)
+		/* skip over whatever is in output buffer */
+		if (state->x.have) {
+			n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > len ?
+				(unsigned)len : state->x.have;
+			state->x.have -= n;
+			state->x.next += n;
+			state->x.pos += n;
+			len -= n;
+		}
+
+	/* output buffer empty -- return if we're at the end of the input */
+		else if (state->eof && state->strm.avail_in == 0)
+			break;
+
+	/* need more data to skip -- load up output buffer */
+		else {
+			/* get more output, looking for header if required */
+			if (gz_fetch(state) == -1)
+				return -1;
+		}
+		return 0;
 }
 
 /* -- see zlib.h -- */
 int ZEXPORT gzread(file, buf, len)
-    gzFile file;
-    voidp buf;
-    unsigned len;
+gzFile file;
+voidp buf;
+unsigned len;
 {
-    unsigned got, n;
-    gz_statep state;
-    z_streamp strm;
-
-    /* get internal structure */
-    if (file == NULL)
-        return -1;
-    state = (gz_statep)file;
-    strm = &(state->strm);
-
-    /* check that we're reading and that there's no (serious) error */
-    if (state->mode != GZ_READ ||
-            (state->err != Z_OK && state->err != Z_BUF_ERROR))
-        return -1;
-
-    /* since an int is returned, make sure len fits in one, otherwise return
-       with an error (this avoids the flaw in the interface) */
-    if ((int)len < 0) {
-        gz_error(state, Z_DATA_ERROR, "requested length does not fit in int");
-        return -1;
-    }
-
-    /* if len is zero, avoid unnecessary operations */
-    if (len == 0)
-        return 0;
-
-    /* process a skip request */
-    if (state->seek) {
-        state->seek = 0;
-        if (gz_skip(state, state->skip) == -1)
-            return -1;
-    }
-
-    /* get len bytes to buf, or less than len if at the end */
-    got = 0;
-    do {
-        /* first just try copying data from the output buffer */
-        if (state->x.have) {
-            n = state->x.have > len ? len : state->x.have;
-            memcpy(buf, state->x.next, n);
-            state->x.next += n;
-            state->x.have -= n;
-        }
-
-        /* output buffer empty -- return if we're at the end of the input */
-        else if (state->eof && strm->avail_in == 0) {
-            state->past = 1;        /* tried to read past end */
-            break;
-        }
-
-        /* need output data -- for small len or new stream load up our output
-           buffer */
-        else if (state->how == LOOK || len < (state->size << 1)) {
-            /* get more output, looking for header if required */
-            if (gz_fetch(state) == -1)
-                return -1;
-            continue;       /* no progress yet -- go back to copy above */
-            /* the copy above assures that we will leave with space in the
-               output buffer, allowing at least one gzungetc() to succeed */
-        }
-
-        /* large len -- read directly into user buffer */
-        else if (state->how == COPY) {      /* read directly */
-            if (gz_load(state, (unsigned char *)buf, len, &n) == -1)
-                return -1;
-        }
-
-        /* large len -- decompress directly into user buffer */
-        else {  /* state->how == GZIP */
-            strm->avail_out = len;
-            strm->next_out = (unsigned char *)buf;
-            if (gz_decomp(state) == -1)
-                return -1;
-            n = state->x.have;
-            state->x.have = 0;
-        }
-
-        /* update progress */
-        len -= n;
-        buf = (char *)buf + n;
-        got += n;
-        state->x.pos += n;
-    } while (len);
-
-    /* return number of bytes read into user buffer (will fit in int) */
-    return (int)got;
+	unsigned got, n;
+	gz_statep state;
+	z_streamp strm;
+
+	/* get internal structure */
+	if (file == NULL)
+		return -1;
+	state = (gz_statep)file;
+	strm = &(state->strm);
+
+	/* check that we're reading and that there's no (serious) error */
+	if (state->mode != GZ_READ ||
+		(state->err != Z_OK && state->err != Z_BUF_ERROR))
+		return -1;
+
+	/* since an int is returned, make sure len fits in one, otherwise return
+		with an error (this avoids the flaw in the interface) */
+	if ((int)len < 0) {
+		gz_error(state, Z_DATA_ERROR, "requested length does not fit in int");
+		return -1;
+	}
+
+	/* if len is zero, avoid unnecessary operations */
+	if (len == 0)
+		return 0;
+
+	/* process a skip request */
+	if (state->seek) {
+		state->seek = 0;
+		if (gz_skip(state, state->skip) == -1)
+			return -1;
+	}
+
+	/* get len bytes to buf, or less than len if at the end */
+	got = 0;
+	do {
+		/* first just try copying data from the output buffer */
+		if (state->x.have) {
+			n = state->x.have > len ? len : state->x.have;
+			memcpy(buf, state->x.next, n);
+			state->x.next += n;
+			state->x.have -= n;
+		}
+
+		/* output buffer empty -- return if we're at the end of the input */
+		else if (state->eof && strm->avail_in == 0) {
+			state->past = 1;        /* tried to read past end */
+			break;
+		}
+
+		/* need output data -- for small len or new stream load up our output
+			buffer */
+		else if (state->how == LOOK || len < (state->size << 1)) {
+			/* get more output, looking for header if required */
+			if (gz_fetch(state) == -1)
+				return -1;
+			continue;       /* no progress yet -- go back to copy above */
+			/* the copy above assures that we will leave with space in the
+				output buffer, allowing at least one gzungetc() to succeed */
+		}
+
+		/* large len -- read directly into user buffer */
+		else if (state->how == COPY) {      /* read directly */
+			if (gz_load(state, (unsigned char *)buf, len, &n) == -1)
+				return -1;
+		}
+
+		/* large len -- decompress directly into user buffer */
+		else {  /* state->how == GZIP */
+			strm->avail_out = len;
+			strm->next_out = (unsigned char *)buf;
+			if (gz_decomp(state) == -1)
+				return -1;
+			n = state->x.have;
+			state->x.have = 0;
+		}
+
+		/* update progress */
+		len -= n;
+		buf = (char *)buf + n;
+		got += n;
+		state->x.pos += n;
+	} while (len);
+
+	/* return number of bytes read into user buffer (will fit in int) */
+	return (int)got;
 }
 
 /* -- see zlib.h -- */
@@ -385,210 +385,210 @@ int ZEXPORT gzread(file, buf, len)
 #  undef gzgetc
 #endif
 int ZEXPORT gzgetc(file)
-    gzFile file;
+gzFile file;
 {
-    int ret;
-    unsigned char buf[1];
-    gz_statep state;
-
-    /* get internal structure */
-    if (file == NULL)
-        return -1;
-    state = (gz_statep)file;
-
-    /* check that we're reading and that there's no (serious) error */
-    if (state->mode != GZ_READ ||
-        (state->err != Z_OK && state->err != Z_BUF_ERROR))
-        return -1;
-
-    /* try output buffer (no need to check for skip request) */
-    if (state->x.have) {
-        state->x.have--;
-        state->x.pos++;
-        return *(state->x.next)++;
-    }
-
-    /* nothing there -- try gzread() */
-    ret = gzread(file, buf, 1);
-    return ret < 1 ? -1 : buf[0];
+	int ret;
+	unsigned char buf[1];
+	gz_statep state;
+
+	/* get internal structure */
+	if (file == NULL)
+		return -1;
+	state = (gz_statep)file;
+
+	/* check that we're reading and that there's no (serious) error */
+	if (state->mode != GZ_READ ||
+		(state->err != Z_OK && state->err != Z_BUF_ERROR))
+		return -1;
+
+	/* try output buffer (no need to check for skip request) */
+	if (state->x.have) {
+		state->x.have--;
+		state->x.pos++;
+		return *(state->x.next)++;
+	}
+
+	/* nothing there -- try gzread() */
+	ret = gzread(file, buf, 1);
+	return ret < 1 ? -1 : buf[0];
 }
 
 int ZEXPORT gzgetc_(file)
 gzFile file;
 {
-    return gzgetc(file);
+	return gzgetc(file);
 }
 
 /* -- see zlib.h -- */
 int ZEXPORT gzungetc(c, file)
-    int c;
-    gzFile file;
+int c;
+gzFile file;
 {
-    gz_statep state;
-
-    /* get internal structure */
-    if (file == NULL)
-        return -1;
-    state = (gz_statep)file;
-
-    /* check that we're reading and that there's no (serious) error */
-    if (state->mode != GZ_READ ||
-        (state->err != Z_OK && state->err != Z_BUF_ERROR))
-        return -1;
-
-    /* process a skip request */
-    if (state->seek) {
-        state->seek = 0;
-        if (gz_skip(state, state->skip) == -1)
-            return -1;
-    }
-
-    /* can't push EOF */
-    if (c < 0)
-        return -1;
-
-    /* if output buffer empty, put byte at end (allows more pushing) */
-    if (state->x.have == 0) {
-        state->x.have = 1;
-        state->x.next = state->out + (state->size << 1) - 1;
-        state->x.next[0] = c;
-        state->x.pos--;
-        state->past = 0;
-        return c;
-    }
-
-    /* if no room, give up (must have already done a gzungetc()) */
-    if (state->x.have == (state->size << 1)) {
-        gz_error(state, Z_DATA_ERROR, "out of room to push characters");
-        return -1;
-    }
-
-    /* slide output data if needed and insert byte before existing data */
-    if (state->x.next == state->out) {
-        unsigned char *src = state->out + state->x.have;
-        unsigned char *dest = state->out + (state->size << 1);
-        while (src > state->out)
-            *--dest = *--src;
-        state->x.next = dest;
-    }
-    state->x.have++;
-    state->x.next--;
-    state->x.next[0] = c;
-    state->x.pos--;
-    state->past = 0;
-    return c;
+	gz_statep state;
+
+	/* get internal structure */
+	if (file == NULL)
+		return -1;
+	state = (gz_statep)file;
+
+	/* check that we're reading and that there's no (serious) error */
+	if (state->mode != GZ_READ ||
+		(state->err != Z_OK && state->err != Z_BUF_ERROR))
+		return -1;
+
+	/* process a skip request */
+	if (state->seek) {
+		state->seek = 0;
+		if (gz_skip(state, state->skip) == -1)
+			return -1;
+	}
+
+	/* can't push EOF */
+	if (c < 0)
+		return -1;
+
+	/* if output buffer empty, put byte at end (allows more pushing) */
+	if (state->x.have == 0) {
+		state->x.have = 1;
+		state->x.next = state->out + (state->size << 1) - 1;
+		state->x.next[0] = c;
+		state->x.pos--;
+		state->past = 0;
+		return c;
+	}
+
+	/* if no room, give up (must have already done a gzungetc()) */
+	if (state->x.have == (state->size << 1)) {
+		gz_error(state, Z_DATA_ERROR, "out of room to push characters");
+		return -1;
+	}
+
+	/* slide output data if needed and insert byte before existing data */
+	if (state->x.next == state->out) {
+		unsigned char *src = state->out + state->x.have;
+		unsigned char *dest = state->out + (state->size << 1);
+		while (src > state->out)
+			*--dest = *--src;
+		state->x.next = dest;
+	}
+	state->x.have++;
+	state->x.next--;
+	state->x.next[0] = c;
+	state->x.pos--;
+	state->past = 0;
+	return c;
 }
 
 /* -- see zlib.h -- */
 char * ZEXPORT gzgets(file, buf, len)
-    gzFile file;
-    char *buf;
-    int len;
+gzFile file;
+char *buf;
+int len;
 {
-    unsigned left, n;
-    char *str;
-    unsigned char *eol;
-    gz_statep state;
-
-    /* check parameters and get internal structure */
-    if (file == NULL || buf == NULL || len < 1)
-        return NULL;
-    state = (gz_statep)file;
-
-    /* check that we're reading and that there's no (serious) error */
-    if (state->mode != GZ_READ ||
-        (state->err != Z_OK && state->err != Z_BUF_ERROR))
-        return NULL;
-
-    /* process a skip request */
-    if (state->seek) {
-        state->seek = 0;
-        if (gz_skip(state, state->skip) == -1)
-            return NULL;
-    }
-
-    /* copy output bytes up to new line or len - 1, whichever comes first --
-       append a terminating zero to the string (we don't check for a zero in
-       the contents, let the user worry about that) */
-    str = buf;
-    left = (unsigned)len - 1;
-    if (left) do {
-        /* assure that something is in the output buffer */
-        if (state->x.have == 0 && gz_fetch(state) == -1)
-            return NULL;                /* error */
-        if (state->x.have == 0) {       /* end of file */
-            state->past = 1;            /* read past end */
-            break;                      /* return what we have */
-        }
-
-        /* look for end-of-line in current output buffer */
-        n = state->x.have > left ? left : state->x.have;
-        eol = (unsigned char *)memchr(state->x.next, '\n', n);
-        if (eol != NULL)
-            n = (unsigned)(eol - state->x.next) + 1;
-
-        /* copy through end-of-line, or remainder if not found */
-        memcpy(buf, state->x.next, n);
-        state->x.have -= n;
-        state->x.next += n;
-        state->x.pos += n;
-        left -= n;
-        buf += n;
-    } while (left && eol == NULL);
-
-    /* return terminated string, or if nothing, end of file */
-    if (buf == str)
-        return NULL;
-    buf[0] = 0;
-    return str;
+	unsigned left, n;
+	char *str;
+	unsigned char *eol;
+	gz_statep state;
+
+	/* check parameters and get internal structure */
+	if (file == NULL || buf == NULL || len < 1)
+		return NULL;
+	state = (gz_statep)file;
+
+	/* check that we're reading and that there's no (serious) error */
+	if (state->mode != GZ_READ ||
+		(state->err != Z_OK && state->err != Z_BUF_ERROR))
+		return NULL;
+
+	/* process a skip request */
+	if (state->seek) {
+		state->seek = 0;
+		if (gz_skip(state, state->skip) == -1)
+			return NULL;
+	}
+
+	/* copy output bytes up to new line or len - 1, whichever comes first --
+		append a terminating zero to the string (we don't check for a zero in
+		the contents, let the user worry about that) */
+	str = buf;
+	left = (unsigned)len - 1;
+	if (left) do {
+		/* assure that something is in the output buffer */
+		if (state->x.have == 0 && gz_fetch(state) == -1)
+			return NULL;                /* error */
+		if (state->x.have == 0) {       /* end of file */
+			state->past = 1;            /* read past end */
+			break;                      /* return what we have */
+		}
+
+		/* look for end-of-line in current output buffer */
+		n = state->x.have > left ? left : state->x.have;
+		eol = (unsigned char *)memchr(state->x.next, '\n', n);
+		if (eol != NULL)
+			n = (unsigned)(eol - state->x.next) + 1;
+
+		/* copy through end-of-line, or remainder if not found */
+		memcpy(buf, state->x.next, n);
+		state->x.have -= n;
+		state->x.next += n;
+		state->x.pos += n;
+		left -= n;
+		buf += n;
+	} while (left && eol == NULL);
+
+	/* return terminated string, or if nothing, end of file */
+	if (buf == str)
+		return NULL;
+	buf[0] = 0;
+	return str;
 }
 
 /* -- see zlib.h -- */
 int ZEXPORT gzdirect(file)
-    gzFile file;
+gzFile file;
 {
-    gz_statep state;
+	gz_statep state;
 
-    /* get internal structure */
-    if (file == NULL)
-        return 0;
-    state = (gz_statep)file;
+	/* get internal structure */
+	if (file == NULL)
+		return 0;
+	state = (gz_statep)file;
 
-    /* if the state is not known, but we can find out, then do so (this is
-       mainly for right after a gzopen() or gzdopen()) */
-    if (state->mode == GZ_READ && state->how == LOOK && state->x.have == 0)
-        (void)gz_look(state);
+	/* if the state is not known, but we can find out, then do so (this is
+		mainly for right after a gzopen() or gzdopen()) */
+	if (state->mode == GZ_READ && state->how == LOOK && state->x.have == 0)
+		(void)gz_look(state);
 
-    /* return 1 if transparent, 0 if processing a gzip stream */
-    return state->direct;
+	/* return 1 if transparent, 0 if processing a gzip stream */
+	return state->direct;
 }
 
 /* -- see zlib.h -- */
 int ZEXPORT gzclose_r(file)
-    gzFile file;
+gzFile file;
 {
-    int ret, err;
-    gz_statep state;
-
-    /* get internal structure */
-    if (file == NULL)
-        return Z_STREAM_ERROR;
-    state = (gz_statep)file;
-
-    /* check that we're reading */
-    if (state->mode != GZ_READ)
-        return Z_STREAM_ERROR;
-
-    /* free memory and close file */
-    if (state->size) {
-        inflateEnd(&(state->strm));
-        free(state->out);
-        free(state->in);
-    }
-    err = state->err == Z_BUF_ERROR ? Z_BUF_ERROR : Z_OK;
-    gz_error(state, Z_OK, NULL);
-    free(state->path);
-    ret = close(state->fd);
-    free(state);
-    return ret ? Z_ERRNO : err;
+	int ret, err;
+	gz_statep state;
+
+	/* get internal structure */
+	if (file == NULL)
+		return Z_STREAM_ERROR;
+	state = (gz_statep)file;
+
+	/* check that we're reading */
+	if (state->mode != GZ_READ)
+		return Z_STREAM_ERROR;
+
+	/* free memory and close file */
+	if (state->size) {
+		inflateEnd(&(state->strm));
+		free(state->out);
+		free(state->in);
+	}
+	err = state->err == Z_BUF_ERROR ? Z_BUF_ERROR : Z_OK;
+	gz_error(state, Z_OK, NULL);
+	free(state->path);
+	ret = close(state->fd);
+	free(state);
+	return ret ? Z_ERRNO : err;
 }