1 files changed, 456 insertions, 456 deletions

diff --git a/libs/zlib/src/gzlib.c b/libs/zlib/src/gzlib.c
index fae202ef89..775af2f3c9 100644
--- a/libs/zlib/src/gzlib.c
+++ b/libs/zlib/src/gzlib.c
@@ -73,562 +73,562 @@ char ZLIB_INTERNAL *gz_strwinerror (error)
 
 /* Reset gzip file state */
 local void gz_reset(state)
-    gz_statep state;
+gz_statep state;
 {
-    state->x.have = 0;              /* no output data available */
-    if (state->mode == GZ_READ) {   /* for reading ... */
-        state->eof = 0;             /* not at end of file */
-        state->past = 0;            /* have not read past end yet */
-        state->how = LOOK;          /* look for gzip header */
-    }
-    state->seek = 0;                /* no seek request pending */
-    gz_error(state, Z_OK, NULL);    /* clear error */
-    state->x.pos = 0;               /* no uncompressed data yet */
-    state->strm.avail_in = 0;       /* no input data yet */
+	state->x.have = 0;              /* no output data available */
+	if (state->mode == GZ_READ) {   /* for reading ... */
+		state->eof = 0;             /* not at end of file */
+		state->past = 0;            /* have not read past end yet */
+		state->how = LOOK;          /* look for gzip header */
+	}
+	state->seek = 0;                /* no seek request pending */
+	gz_error(state, Z_OK, NULL);    /* clear error */
+	state->x.pos = 0;               /* no uncompressed data yet */
+	state->strm.avail_in = 0;       /* no input data yet */
 }
 
 /* Open a gzip file either by name or file descriptor. */
 local gzFile gz_open(path, fd, mode)
-    const void *path;
-    int fd;
-    const char *mode;
+const void *path;
+int fd;
+const char *mode;
 {
-    gz_statep state;
-    size_t len;
-    int oflag;
-#ifdef O_CLOEXEC
-    int cloexec = 0;
-#endif
-#ifdef O_EXCL
-    int exclusive = 0;
-#endif
-
-    /* check input */
-    if (path == NULL)
-        return NULL;
-
-    /* allocate gzFile structure to return */
-    state = (gz_statep)malloc(sizeof(gz_state));
-    if (state == NULL)
-        return NULL;
-    state->size = 0;            /* no buffers allocated yet */
-    state->want = GZBUFSIZE;    /* requested buffer size */
-    state->msg = NULL;          /* no error message yet */
-
-    /* interpret mode */
-    state->mode = GZ_NONE;
-    state->level = Z_DEFAULT_COMPRESSION;
-    state->strategy = Z_DEFAULT_STRATEGY;
-    state->direct = 0;
-    while (*mode) {
-        if (*mode >= '0' && *mode <= '9')
-            state->level = *mode - '0';
-        else
-            switch (*mode) {
-            case 'r':
-                state->mode = GZ_READ;
-                break;
-#ifndef NO_GZCOMPRESS
-            case 'w':
-                state->mode = GZ_WRITE;
-                break;
-            case 'a':
-                state->mode = GZ_APPEND;
-                break;
-#endif
-            case '+':       /* can't read and write at the same time */
-                free(state);
-                return NULL;
-            case 'b':       /* ignore -- will request binary anyway */
-                break;
-#ifdef O_CLOEXEC
-            case 'e':
-                cloexec = 1;
-                break;
-#endif
-#ifdef O_EXCL
-            case 'x':
-                exclusive = 1;
-                break;
-#endif
-            case 'f':
-                state->strategy = Z_FILTERED;
-                break;
-            case 'h':
-                state->strategy = Z_HUFFMAN_ONLY;
-                break;
-            case 'R':
-                state->strategy = Z_RLE;
-                break;
-            case 'F':
-                state->strategy = Z_FIXED;
-                break;
-            case 'T':
-                state->direct = 1;
-                break;
-            default:        /* could consider as an error, but just ignore */
-                ;
-            }
-        mode++;
-    }
-
-    /* must provide an "r", "w", or "a" */
-    if (state->mode == GZ_NONE) {
-        free(state);
-        return NULL;
-    }
-
-    /* can't force transparent read */
-    if (state->mode == GZ_READ) {
-        if (state->direct) {
-            free(state);
-            return NULL;
-        }
-        state->direct = 1;      /* for empty file */
-    }
-
-    /* save the path name for error messages */
-#ifdef _WIN32
-    if (fd == -2) {
-        len = wcstombs(NULL, path, 0);
-        if (len == (size_t)-1)
-            len = 0;
-    }
-    else
-#endif
-        len = strlen((const char *)path);
-    state->path = (char *)malloc(len + 1);
-    if (state->path == NULL) {
-        free(state);
-        return NULL;
-    }
-#ifdef _WIN32
-    if (fd == -2)
-        if (len)
-            wcstombs(state->path, path, len + 1);
-        else
-            *(state->path) = 0;
-    else
-#endif
-#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
-        snprintf(state->path, len + 1, "%s", (const char *)path);
-#else
-        strcpy(state->path, path);
-#endif
-
-    /* compute the flags for open() */
-    oflag =
-#ifdef O_LARGEFILE
-        O_LARGEFILE |
-#endif
-#ifdef O_BINARY
-        O_BINARY |
-#endif
-#ifdef O_CLOEXEC
-        (cloexec ? O_CLOEXEC : 0) |
-#endif
-        (state->mode == GZ_READ ?
-         O_RDONLY :
-         (O_WRONLY | O_CREAT |
-#ifdef O_EXCL
-          (exclusive ? O_EXCL : 0) |
-#endif
-          (state->mode == GZ_WRITE ?
-           O_TRUNC :
-           O_APPEND)));
-
-    /* open the file with the appropriate flags (or just use fd) */
-    state->fd = fd > -1 ? fd : (
-#ifdef _WIN32
-        fd == -2 ? _wopen(path, oflag, 0666) :
-#endif
-        open((const char *)path, oflag, 0666));
-    if (state->fd == -1) {
-        free(state->path);
-        free(state);
-        return NULL;
-    }
-    if (state->mode == GZ_APPEND)
-        state->mode = GZ_WRITE;         /* simplify later checks */
-
-    /* save the current position for rewinding (only if reading) */
-    if (state->mode == GZ_READ) {
-        state->start = LSEEK(state->fd, 0, SEEK_CUR);
-        if (state->start == -1) state->start = 0;
-    }
-
-    /* initialize stream */
-    gz_reset(state);
-
-    /* return stream */
-    return (gzFile)state;
+	gz_statep state;
+	size_t len;
+	int oflag;
+	#ifdef O_CLOEXEC
+	int cloexec = 0;
+	#endif
+	#ifdef O_EXCL
+	int exclusive = 0;
+	#endif
+
+	/* check input */
+	if (path == NULL)
+		return NULL;
+
+	/* allocate gzFile structure to return */
+	state = (gz_statep)malloc(sizeof(gz_state));
+	if (state == NULL)
+		return NULL;
+	state->size = 0;            /* no buffers allocated yet */
+	state->want = GZBUFSIZE;    /* requested buffer size */
+	state->msg = NULL;          /* no error message yet */
+
+	/* interpret mode */
+	state->mode = GZ_NONE;
+	state->level = Z_DEFAULT_COMPRESSION;
+	state->strategy = Z_DEFAULT_STRATEGY;
+	state->direct = 0;
+	while (*mode) {
+		if (*mode >= '0' && *mode <= '9')
+			state->level = *mode - '0';
+		else
+			switch (*mode) {
+			case 'r':
+				state->mode = GZ_READ;
+				break;
+				#ifndef NO_GZCOMPRESS
+			case 'w':
+				state->mode = GZ_WRITE;
+				break;
+			case 'a':
+				state->mode = GZ_APPEND;
+				break;
+				#endif
+			case '+':       /* can't read and write at the same time */
+				free(state);
+				return NULL;
+			case 'b':       /* ignore -- will request binary anyway */
+				break;
+				#ifdef O_CLOEXEC
+			case 'e':
+				cloexec = 1;
+				break;
+				#endif
+				#ifdef O_EXCL
+			case 'x':
+				exclusive = 1;
+				break;
+				#endif
+			case 'f':
+				state->strategy = Z_FILTERED;
+				break;
+			case 'h':
+				state->strategy = Z_HUFFMAN_ONLY;
+				break;
+			case 'R':
+				state->strategy = Z_RLE;
+				break;
+			case 'F':
+				state->strategy = Z_FIXED;
+				break;
+			case 'T':
+				state->direct = 1;
+				break;
+			default:        /* could consider as an error, but just ignore */
+				;
+			}
+		mode++;
+	}
+
+	/* must provide an "r", "w", or "a" */
+	if (state->mode == GZ_NONE) {
+		free(state);
+		return NULL;
+	}
+
+	/* can't force transparent read */
+	if (state->mode == GZ_READ) {
+		if (state->direct) {
+			free(state);
+			return NULL;
+		}
+		state->direct = 1;      /* for empty file */
+	}
+
+	/* save the path name for error messages */
+	#ifdef _WIN32
+	if (fd == -2) {
+		len = wcstombs(NULL, path, 0);
+		if (len == (size_t)-1)
+			len = 0;
+	}
+	else
+		#endif
+		len = strlen((const char *)path);
+	state->path = (char *)malloc(len + 1);
+	if (state->path == NULL) {
+		free(state);
+		return NULL;
+	}
+	#ifdef _WIN32
+	if (fd == -2)
+		if (len)
+			wcstombs(state->path, path, len + 1);
+		else
+			*(state->path) = 0;
+	else
+		#endif
+		#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+		snprintf(state->path, len + 1, "%s", (const char *)path);
+	#else
+		strcpy(state->path, path);
+	#endif
+
+	/* compute the flags for open() */
+	oflag =
+		#ifdef O_LARGEFILE
+		O_LARGEFILE |
+		#endif
+		#ifdef O_BINARY
+		O_BINARY |
+		#endif
+		#ifdef O_CLOEXEC
+		(cloexec ? O_CLOEXEC : 0) |
+		#endif
+		(state->mode == GZ_READ ?
+			O_RDONLY :
+			(O_WRONLY | O_CREAT |
+				#ifdef O_EXCL
+				(exclusive ? O_EXCL : 0) |
+				#endif
+				(state->mode == GZ_WRITE ?
+					O_TRUNC :
+					O_APPEND)));
+
+	/* open the file with the appropriate flags (or just use fd) */
+	state->fd = fd > -1 ? fd : (
+		#ifdef _WIN32
+		fd == -2 ? _wopen(path, oflag, 0666) :
+		#endif
+		open((const char *)path, oflag, 0666));
+	if (state->fd == -1) {
+		free(state->path);
+		free(state);
+		return NULL;
+	}
+	if (state->mode == GZ_APPEND)
+		state->mode = GZ_WRITE;         /* simplify later checks */
+
+  /* save the current position for rewinding (only if reading) */
+	if (state->mode == GZ_READ) {
+		state->start = LSEEK(state->fd, 0, SEEK_CUR);
+		if (state->start == -1) state->start = 0;
+	}
+
+	/* initialize stream */
+	gz_reset(state);
+
+	/* return stream */
+	return (gzFile)state;
 }
 
 /* -- see zlib.h -- */
 gzFile ZEXPORT gzopen(path, mode)
-    const char *path;
-    const char *mode;
+const char *path;
+const char *mode;
 {
-    return gz_open(path, -1, mode);
+	return gz_open(path, -1, mode);
 }
 
 /* -- see zlib.h -- */
 gzFile ZEXPORT gzopen64(path, mode)
-    const char *path;
-    const char *mode;
+const char *path;
+const char *mode;
 {
-    return gz_open(path, -1, mode);
+	return gz_open(path, -1, mode);
 }
 
 /* -- see zlib.h -- */
 gzFile ZEXPORT gzdopen(fd, mode)
-    int fd;
-    const char *mode;
+int fd;
+const char *mode;
 {
-    char *path;         /* identifier for error messages */
-    gzFile gz;
-
-    if (fd == -1 || (path = (char *)malloc(7 + 3 * sizeof(int))) == NULL)
-        return NULL;
-#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
-    snprintf(path, 7 + 3 * sizeof(int), "<fd:%d>", fd); /* for debugging */
-#else
-    sprintf(path, "<fd:%d>", fd);   /* for debugging */
-#endif
-    gz = gz_open(path, fd, mode);
-    free(path);
-    return gz;
+	char *path;         /* identifier for error messages */
+	gzFile gz;
+
+	if (fd == -1 || (path = (char *)malloc(7 + 3 * sizeof(int))) == NULL)
+		return NULL;
+	#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+	snprintf(path, 7 + 3 * sizeof(int), "<fd:%d>", fd); /* for debugging */
+	#else
+	sprintf(path, "<fd:%d>", fd);   /* for debugging */
+	#endif
+	gz = gz_open(path, fd, mode);
+	free(path);
+	return gz;
 }
 
 /* -- see zlib.h -- */
 #ifdef _WIN32
 gzFile ZEXPORT gzopen_w(path, mode)
-    const wchar_t *path;
-    const char *mode;
+const wchar_t *path;
+const char *mode;
 {
-    return gz_open(path, -2, mode);
+	return gz_open(path, -2, mode);
 }
 #endif
 
 /* -- see zlib.h -- */
 int ZEXPORT gzbuffer(file, size)
-    gzFile file;
-    unsigned size;
+gzFile file;
+unsigned size;
 {
-    gz_statep state;
-
-    /* get internal structure and check integrity */
-    if (file == NULL)
-        return -1;
-    state = (gz_statep)file;
-    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
-        return -1;
-
-    /* make sure we haven't already allocated memory */
-    if (state->size != 0)
-        return -1;
-
-    /* check and set requested size */
-    if (size < 2)
-        size = 2;               /* need two bytes to check magic header */
-    state->want = size;
-    return 0;
+	gz_statep state;
+
+	/* get internal structure and check integrity */
+	if (file == NULL)
+		return -1;
+	state = (gz_statep)file;
+	if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+		return -1;
+
+	/* make sure we haven't already allocated memory */
+	if (state->size != 0)
+		return -1;
+
+	/* check and set requested size */
+	if (size < 2)
+		size = 2;               /* need two bytes to check magic header */
+	state->want = size;
+	return 0;
 }
 
 /* -- see zlib.h -- */
 int ZEXPORT gzrewind(file)
-    gzFile file;
+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 error */
-    if (state->mode != GZ_READ ||
-            (state->err != Z_OK && state->err != Z_BUF_ERROR))
-        return -1;
-
-    /* back up and start over */
-    if (LSEEK(state->fd, state->start, SEEK_SET) == -1)
-        return -1;
-    gz_reset(state);
-    return 0;
+	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 error */
+	if (state->mode != GZ_READ ||
+		(state->err != Z_OK && state->err != Z_BUF_ERROR))
+		return -1;
+
+	/* back up and start over */
+	if (LSEEK(state->fd, state->start, SEEK_SET) == -1)
+		return -1;
+	gz_reset(state);
+	return 0;
 }
 
 /* -- see zlib.h -- */
 z_off64_t ZEXPORT gzseek64(file, offset, whence)
-    gzFile file;
-    z_off64_t offset;
-    int whence;
+gzFile file;
+z_off64_t offset;
+int whence;
 {
-    unsigned n;
-    z_off64_t ret;
-    gz_statep state;
-
-    /* get internal structure and check integrity */
-    if (file == NULL)
-        return -1;
-    state = (gz_statep)file;
-    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
-        return -1;
-
-    /* check that there's no error */
-    if (state->err != Z_OK && state->err != Z_BUF_ERROR)
-        return -1;
-
-    /* can only seek from start or relative to current position */
-    if (whence != SEEK_SET && whence != SEEK_CUR)
-        return -1;
-
-    /* normalize offset to a SEEK_CUR specification */
-    if (whence == SEEK_SET)
-        offset -= state->x.pos;
-    else if (state->seek)
-        offset += state->skip;
-    state->seek = 0;
-
-    /* if within raw area while reading, just go there */
-    if (state->mode == GZ_READ && state->how == COPY &&
-            state->x.pos + offset >= 0) {
-        ret = LSEEK(state->fd, offset - state->x.have, SEEK_CUR);
-        if (ret == -1)
-            return -1;
-        state->x.have = 0;
-        state->eof = 0;
-        state->past = 0;
-        state->seek = 0;
-        gz_error(state, Z_OK, NULL);
-        state->strm.avail_in = 0;
-        state->x.pos += offset;
-        return state->x.pos;
-    }
-
-    /* calculate skip amount, rewinding if needed for back seek when reading */
-    if (offset < 0) {
-        if (state->mode != GZ_READ)         /* writing -- can't go backwards */
-            return -1;
-        offset += state->x.pos;
-        if (offset < 0)                     /* before start of file! */
-            return -1;
-        if (gzrewind(file) == -1)           /* rewind, then skip to offset */
-            return -1;
-    }
-
-    /* if reading, skip what's in output buffer (one less gzgetc() check) */
-    if (state->mode == GZ_READ) {
-        n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > offset ?
-            (unsigned)offset : state->x.have;
-        state->x.have -= n;
-        state->x.next += n;
-        state->x.pos += n;
-        offset -= n;
-    }
-
-    /* request skip (if not zero) */
-    if (offset) {
-        state->seek = 1;
-        state->skip = offset;
-    }
-    return state->x.pos + offset;
+	unsigned n;
+	z_off64_t ret;
+	gz_statep state;
+
+	/* get internal structure and check integrity */
+	if (file == NULL)
+		return -1;
+	state = (gz_statep)file;
+	if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+		return -1;
+
+	/* check that there's no error */
+	if (state->err != Z_OK && state->err != Z_BUF_ERROR)
+		return -1;
+
+	/* can only seek from start or relative to current position */
+	if (whence != SEEK_SET && whence != SEEK_CUR)
+		return -1;
+
+	/* normalize offset to a SEEK_CUR specification */
+	if (whence == SEEK_SET)
+		offset -= state->x.pos;
+	else if (state->seek)
+		offset += state->skip;
+	state->seek = 0;
+
+	/* if within raw area while reading, just go there */
+	if (state->mode == GZ_READ && state->how == COPY &&
+		state->x.pos + offset >= 0) {
+		ret = LSEEK(state->fd, offset - state->x.have, SEEK_CUR);
+		if (ret == -1)
+			return -1;
+		state->x.have = 0;
+		state->eof = 0;
+		state->past = 0;
+		state->seek = 0;
+		gz_error(state, Z_OK, NULL);
+		state->strm.avail_in = 0;
+		state->x.pos += offset;
+		return state->x.pos;
+	}
+
+	/* calculate skip amount, rewinding if needed for back seek when reading */
+	if (offset < 0) {
+		if (state->mode != GZ_READ)         /* writing -- can't go backwards */
+			return -1;
+		offset += state->x.pos;
+		if (offset < 0)                     /* before start of file! */
+			return -1;
+		if (gzrewind(file) == -1)           /* rewind, then skip to offset */
+			return -1;
+	}
+
+	/* if reading, skip what's in output buffer (one less gzgetc() check) */
+	if (state->mode == GZ_READ) {
+		n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > offset ?
+			(unsigned)offset : state->x.have;
+		state->x.have -= n;
+		state->x.next += n;
+		state->x.pos += n;
+		offset -= n;
+	}
+
+	/* request skip (if not zero) */
+	if (offset) {
+		state->seek = 1;
+		state->skip = offset;
+	}
+	return state->x.pos + offset;
 }
 
 /* -- see zlib.h -- */
 z_off_t ZEXPORT gzseek(file, offset, whence)
-    gzFile file;
-    z_off_t offset;
-    int whence;
+gzFile file;
+z_off_t offset;
+int whence;
 {
-    z_off64_t ret;
+	z_off64_t ret;
 
-    ret = gzseek64(file, (z_off64_t)offset, whence);
-    return ret == (z_off_t)ret ? (z_off_t)ret : -1;
+	ret = gzseek64(file, (z_off64_t)offset, whence);
+	return ret == (z_off_t)ret ? (z_off_t)ret : -1;
 }
 
 /* -- see zlib.h -- */
 z_off64_t ZEXPORT gztell64(file)
-    gzFile file;
+gzFile file;
 {
-    gz_statep state;
+	gz_statep state;
 
-    /* get internal structure and check integrity */
-    if (file == NULL)
-        return -1;
-    state = (gz_statep)file;
-    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
-        return -1;
+	/* get internal structure and check integrity */
+	if (file == NULL)
+		return -1;
+	state = (gz_statep)file;
+	if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+		return -1;
 
-    /* return position */
-    return state->x.pos + (state->seek ? state->skip : 0);
+	/* return position */
+	return state->x.pos + (state->seek ? state->skip : 0);
 }
 
 /* -- see zlib.h -- */
 z_off_t ZEXPORT gztell(file)
-    gzFile file;
+gzFile file;
 {
-    z_off64_t ret;
+	z_off64_t ret;
 
-    ret = gztell64(file);
-    return ret == (z_off_t)ret ? (z_off_t)ret : -1;
+	ret = gztell64(file);
+	return ret == (z_off_t)ret ? (z_off_t)ret : -1;
 }
 
 /* -- see zlib.h -- */
 z_off64_t ZEXPORT gzoffset64(file)
-    gzFile file;
+gzFile file;
 {
-    z_off64_t offset;
-    gz_statep state;
-
-    /* get internal structure and check integrity */
-    if (file == NULL)
-        return -1;
-    state = (gz_statep)file;
-    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
-        return -1;
-
-    /* compute and return effective offset in file */
-    offset = LSEEK(state->fd, 0, SEEK_CUR);
-    if (offset == -1)
-        return -1;
-    if (state->mode == GZ_READ)             /* reading */
-        offset -= state->strm.avail_in;     /* don't count buffered input */
-    return offset;
+	z_off64_t offset;
+	gz_statep state;
+
+	/* get internal structure and check integrity */
+	if (file == NULL)
+		return -1;
+	state = (gz_statep)file;
+	if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+		return -1;
+
+	/* compute and return effective offset in file */
+	offset = LSEEK(state->fd, 0, SEEK_CUR);
+	if (offset == -1)
+		return -1;
+	if (state->mode == GZ_READ)             /* reading */
+		offset -= state->strm.avail_in;     /* don't count buffered input */
+	return offset;
 }
 
 /* -- see zlib.h -- */
 z_off_t ZEXPORT gzoffset(file)
-    gzFile file;
+gzFile file;
 {
-    z_off64_t ret;
+	z_off64_t ret;
 
-    ret = gzoffset64(file);
-    return ret == (z_off_t)ret ? (z_off_t)ret : -1;
+	ret = gzoffset64(file);
+	return ret == (z_off_t)ret ? (z_off_t)ret : -1;
 }
 
 /* -- see zlib.h -- */
 int ZEXPORT gzeof(file)
-    gzFile file;
+gzFile file;
 {
-    gz_statep state;
+	gz_statep state;
 
-    /* get internal structure and check integrity */
-    if (file == NULL)
-        return 0;
-    state = (gz_statep)file;
-    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
-        return 0;
+	/* get internal structure and check integrity */
+	if (file == NULL)
+		return 0;
+	state = (gz_statep)file;
+	if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+		return 0;
 
-    /* return end-of-file state */
-    return state->mode == GZ_READ ? state->past : 0;
+	/* return end-of-file state */
+	return state->mode == GZ_READ ? state->past : 0;
 }
 
 /* -- see zlib.h -- */
 const char * ZEXPORT gzerror(file, errnum)
-    gzFile file;
-    int *errnum;
+gzFile file;
+int *errnum;
 {
-    gz_statep state;
-
-    /* get internal structure and check integrity */
-    if (file == NULL)
-        return NULL;
-    state = (gz_statep)file;
-    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
-        return NULL;
-
-    /* return error information */
-    if (errnum != NULL)
-        *errnum = state->err;
-    return state->err == Z_MEM_ERROR ? "out of memory" :
-                                       (state->msg == NULL ? "" : state->msg);
+	gz_statep state;
+
+	/* get internal structure and check integrity */
+	if (file == NULL)
+		return NULL;
+	state = (gz_statep)file;
+	if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+		return NULL;
+
+	/* return error information */
+	if (errnum != NULL)
+		*errnum = state->err;
+	return state->err == Z_MEM_ERROR ? "out of memory" :
+		(state->msg == NULL ? "" : state->msg);
 }
 
 /* -- see zlib.h -- */
 void ZEXPORT gzclearerr(file)
-    gzFile file;
+gzFile file;
 {
-    gz_statep state;
-
-    /* get internal structure and check integrity */
-    if (file == NULL)
-        return;
-    state = (gz_statep)file;
-    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
-        return;
-
-    /* clear error and end-of-file */
-    if (state->mode == GZ_READ) {
-        state->eof = 0;
-        state->past = 0;
-    }
-    gz_error(state, Z_OK, NULL);
+	gz_statep state;
+
+	/* get internal structure and check integrity */
+	if (file == NULL)
+		return;
+	state = (gz_statep)file;
+	if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+		return;
+
+	/* clear error and end-of-file */
+	if (state->mode == GZ_READ) {
+		state->eof = 0;
+		state->past = 0;
+	}
+	gz_error(state, Z_OK, NULL);
 }
 
 /* Create an error message in allocated memory and set state->err and
-   state->msg accordingly.  Free any previous error message already there.  Do
-   not try to free or allocate space if the error is Z_MEM_ERROR (out of
-   memory).  Simply save the error message as a static string.  If there is an
-   allocation failure constructing the error message, then convert the error to
-   out of memory. */
+	state->msg accordingly.  Free any previous error message already there.  Do
+	not try to free or allocate space if the error is Z_MEM_ERROR (out of
+	memory).  Simply save the error message as a static string.  If there is an
+	allocation failure constructing the error message, then convert the error to
+	out of memory. */
 void ZLIB_INTERNAL gz_error(state, err, msg)
-    gz_statep state;
-    int err;
-    const char *msg;
+gz_statep state;
+int err;
+const char *msg;
 {
-    /* free previously allocated message and clear */
-    if (state->msg != NULL) {
-        if (state->err != Z_MEM_ERROR)
-            free(state->msg);
-        state->msg = NULL;
-    }
-
-    /* if fatal, set state->x.have to 0 so that the gzgetc() macro fails */
-    if (err != Z_OK && err != Z_BUF_ERROR)
-        state->x.have = 0;
-
-    /* set error code, and if no message, then done */
-    state->err = err;
-    if (msg == NULL)
-        return;
-
-    /* for an out of memory error, return literal string when requested */
-    if (err == Z_MEM_ERROR)
-        return;
-
-    /* construct error message with path */
-    if ((state->msg = (char *)malloc(strlen(state->path) + strlen(msg) + 3)) ==
-            NULL) {
-        state->err = Z_MEM_ERROR;
-        return;
-    }
-#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
-    snprintf(state->msg, strlen(state->path) + strlen(msg) + 3,
-             "%s%s%s", state->path, ": ", msg);
-#else
-    strcpy(state->msg, state->path);
-    strcat(state->msg, ": ");
-    strcat(state->msg, msg);
-#endif
-    return;
+	/* free previously allocated message and clear */
+	if (state->msg != NULL) {
+		if (state->err != Z_MEM_ERROR)
+			free(state->msg);
+		state->msg = NULL;
+	}
+
+	/* if fatal, set state->x.have to 0 so that the gzgetc() macro fails */
+	if (err != Z_OK && err != Z_BUF_ERROR)
+		state->x.have = 0;
+
+	/* set error code, and if no message, then done */
+	state->err = err;
+	if (msg == NULL)
+		return;
+
+	/* for an out of memory error, return literal string when requested */
+	if (err == Z_MEM_ERROR)
+		return;
+
+	/* construct error message with path */
+	if ((state->msg = (char *)malloc(strlen(state->path) + strlen(msg) + 3)) ==
+		NULL) {
+		state->err = Z_MEM_ERROR;
+		return;
+	}
+	#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+	snprintf(state->msg, strlen(state->path) + strlen(msg) + 3,
+		"%s%s%s", state->path, ": ", msg);
+	#else
+	strcpy(state->msg, state->path);
+	strcat(state->msg, ": ");
+	strcat(state->msg, msg);
+	#endif
+	return;
 }
 
 #ifndef INT_MAX
 /* portably return maximum value for an int (when limits.h presumed not
-   available) -- we need to do this to cover cases where 2's complement not
-   used, since C standard permits 1's complement and sign-bit representations,
-   otherwise we could just use ((unsigned)-1) >> 1 */
+	available) -- we need to do this to cover cases where 2's complement not
+	used, since C standard permits 1's complement and sign-bit representations,
+	otherwise we could just use ((unsigned)-1) >> 1 */
 unsigned ZLIB_INTERNAL gz_intmax()
 {
-    unsigned p, q;
-
-    p = 1;
-    do {
-        q = p;
-        p <<= 1;
-        p++;
-    } while (p > q);
-    return q >> 1;
+	unsigned p, q;
+
+	p = 1;
+	do {
+		q = p;
+		p <<= 1;
+		p++;
+	} while (p > q);
+	return q >> 1;
 }
 #endif