63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
#include "test-tool.h"
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#include "git-zlib.h"
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#include "strbuf.h"
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static const char *zlib_usage = "test-tool zlib [inflate|deflate]";
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static void do_zlib(struct git_zstream *stream,
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int (*zlib_func)(git_zstream *, int),
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int fd_in, int fd_out)
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{
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struct strbuf buf_in = STRBUF_INIT;
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int status = Z_OK;
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if (strbuf_read(&buf_in, fd_in, 0) < 0)
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die_errno("read error");
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stream->next_in = (unsigned char *)buf_in.buf;
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stream->avail_in = buf_in.len;
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while (status == Z_OK ||
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(status == Z_BUF_ERROR && !stream->avail_out)) {
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unsigned char buf_out[4096];
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stream->next_out = buf_out;
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stream->avail_out = sizeof(buf_out);
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status = zlib_func(stream, Z_FINISH);
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if (write_in_full(fd_out, buf_out,
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sizeof(buf_out) - stream->avail_out) < 0)
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die_errno("write error");
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}
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if (status != Z_STREAM_END)
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die("zlib error %d", status);
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strbuf_release(&buf_in);
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}
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int cmd__zlib(int argc, const char **argv)
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{
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git_zstream stream;
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if (argc != 2)
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usage(zlib_usage);
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memset(&stream, 0, sizeof(stream));
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if (!strcmp(argv[1], "inflate")) {
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git_inflate_init(&stream);
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do_zlib(&stream, git_inflate, 0, 1);
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git_inflate_end(&stream);
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} else if (!strcmp(argv[1], "deflate")) {
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git_deflate_init(&stream, Z_DEFAULT_COMPRESSION);
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do_zlib(&stream, git_deflate, 0, 1);
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git_deflate_end(&stream);
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} else {
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error("unknown mode: %s", argv[1]);
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usage(zlib_usage);
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}
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return 0;
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}
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