Author: delphij
Date: Wed Oct 16 17:16:40 2013
New Revision: 256644
URL: http://svnweb.freebsd.org/changeset/base/256644
Log:
Make it possible to seek within a gzip stream.
Modified:
head/lib/libz/zopen.c
Modified: head/lib/libz/zopen.c
==============================================================================
--- head/lib/libz/zopen.c Wed Oct 16 17:03:46 2013 (r256643)
+++ head/lib/libz/zopen.c Wed Oct 16 17:16:40 2013 (r256644)
@@ -29,6 +29,12 @@ xgzclose(void *cookie)
return gzclose(cookie);
}
+static fpos_t
+xgzseek(void *cookie, fpos_t offset, int whence)
+{
+ return gzseek(cookie, (z_off_t)offset, whence);
+}
+
FILE *
zopen(const char *fname, const char *mode)
{
@@ -37,7 +43,7 @@ zopen(const char *fname, const char *mod
return NULL;
if(*mode == 'r')
- return (funopen(gz, xgzread, NULL, NULL, xgzclose));
+ return (funopen(gz, xgzread, NULL, xgzseek, xgzclose));
else
- return (funopen(gz, NULL, xgzwrite, NULL, xgzclose));
+ return (funopen(gz, NULL, xgzwrite, xgzseek, xgzclose));
}
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