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Add support for direct file reading and writing in wayland-scanner.

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Add support for direct file reading and writing in wayland-scanner.

Signed-off-by: Jussi Pakkanen <jpakkane@gmail.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Acked-by: David Fort <rdp.effort@gmail.com>
This commit is contained in:
Jussi Pakkanen 2015-03-02 16:08:00 +02:00 • committed by Pekka Paalanen
parent 439b0a3863
commit 2d46da10d8
1 changed files with 21 additions and 5 deletions
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26
src/scanner.c
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@ -39,11 +39,12 @@ enum side {
static int
usage(int ret)
{
fprintf(stderr, "usage: ./scanner [client-header|server-header|code]\n");
fprintf(stderr, "usage: ./scanner [client-header|server-header|code]"
" [input_file output_file]\n");
fprintf(stderr, "\n");
fprintf(stderr, "Converts XML protocol descriptions supplied on "
"stdin to client headers,\n"
"server headers, or protocol marshalling code.\n");
"stdin or input file to client\n"
"headers, server headers, or protocol marshalling code.\n");
exit(ret);
}
@ -1252,6 +1253,7 @@ int main(int argc, char *argv[])
{
struct parse_context ctx;
struct protocol protocol;
FILE *input = stdin;
int len;
void *buf;
enum {
@ -1260,7 +1262,7 @@ int main(int argc, char *argv[])
CODE,
} mode;
if (argc != 2)
if (argc != 2 && argc != 4)
usage(EXIT_FAILURE);
else if (strcmp(argv[1], "help") == 0 || strcmp(argv[1], "--help") == 0)
usage(EXIT_SUCCESS);
@ -1273,6 +1275,20 @@ int main(int argc, char *argv[])
else
usage(EXIT_FAILURE);
if (argc == 4) {
input = fopen(argv[2], "r");
if (input == NULL) {
fprintf(stderr, "Could not open input file: %s\n",
strerror(errno));
exit(EXIT_FAILURE);
}
if (freopen(argv[3], "w", stdout) == NULL) {
fprintf(stderr, "Could not open output file: %s\n",
strerror(errno));
exit(EXIT_FAILURE);
}
}
wl_list_init(&protocol.interface_list);
protocol.type_index = 0;
protocol.null_run_length = 0;
@ -1293,7 +1309,7 @@ int main(int argc, char *argv[])
do {
buf = XML_GetBuffer(ctx.parser, XML_BUFFER_SIZE);
len = fread(buf, 1, XML_BUFFER_SIZE, stdin);
len = fread(buf, 1, XML_BUFFER_SIZE, input);
if (len < 0) {
fprintf(stderr, "fread: %m\n");
exit(EXIT_FAILURE);