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#include "slip.h"
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
void
die(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
fputs("libslip-test: ", stderr);
vfprintf(stderr, fmt, ap);
if (*fmt && fmt[strlen(fmt) - 1] == ':') {
fputc(' ', stderr);
perror(NULL);
} else {
fputc('\n', stderr);
}
va_end(ap);
exit(1);
}
int
slip_realloc(void **buf, size_t size)
{
*buf = realloc(*buf, size);
if (!*buf) die("realloc:");
return 0;
}
void
slip_restart(struct slip *slip, uint8_t b)
{
printf("RESTART due to '%02x' byte\n", b);
}
void
slip_rx(struct slip *slip, uint8_t *data, size_t len, void *user)
{
printf("PACKET %.*s\n", (int) len, data);
}
int
main(int argc, const char **argv)
{
uint8_t iobuf[BUFSIZ];
uint8_t encbuf[BUFSIZ * 2 + 2];
struct slip slip = { 0 };
size_t enclen, nread;
int rc;
slip.realloc = slip_realloc;
slip.rx_packet = slip_rx;
slip.rx_restart = slip_restart;
slip.esc = '\\';
slip.start = '<';
slip.end = '>';
slip.esc_active['\\'] = true;
slip.esc_enc['\\'] = '\\';
slip.esc_active['<'] = true;
slip.esc_enc['<'] = '<';
slip.esc_active['>'] = true;
slip.esc_enc['>'] = '>';
rc = slip_init(&slip);
if (rc) die("slip_init");
if (argc == 2 && !strcmp(argv[1], "-d")) {
while ((nread = fread(iobuf, 1, sizeof(iobuf), stdin))) {
rc = slip_decode(&slip, iobuf, nread);
if (rc) die("slip_decode");
}
} else {
while ((nread = fread(iobuf, 1, sizeof(iobuf), stdin))) {
rc = slip_encode(&slip, encbuf, &enclen,
sizeof(encbuf), iobuf, nread);
if (rc) die("slip_encode");
fwrite(encbuf, 1, enclen, stdout);
}
}
slip_deinit(&slip);
}
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