dadada/netcalc
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Create and tranmit string from binary representation of result.

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tim.schubert@tu-bs.de 2016-10-28 00:18:19 +02:00
parent 80dc59be01
commit 1f42a13ee0
1 changed files with 17 additions and 1 deletions
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18
netcalc.c
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@ -163,6 +163,19 @@ void report_error(char *buf, unsigned long buflen, char *msg)
sprintf(buf, "%s\n", msg);
}
void bstr(unsigned int n, char **out)
{
// voodoo
int msb = 32 - __builtin_clz(n);
(*out) = (char*) calloc(msb+1, sizeof (char));
printf("This is ZORK! %d\n", msb);
(*out)[msb] = '\0';
for (msb = msb-1; msb >= 0; msb--) {
(*out)[msb] = (char) (48 + n % 2);
n = n/2;
}
}
int server()
{
while (1) {
@ -200,7 +213,10 @@ int server()
fprintf(stderr, "debug: %u %c %u = %u\n", first, op, second, result);
// TODO output binary format
memset(buf, 0, sizeof buf);
sprintf(buf, "%u 0x%X \n", result, result);
char *bin;
bstr(result, &bin);
sprintf(buf, "%u 0x%X %sb\n", result, result, bin);
free(bin);
}
if (send(c_fd, buf, sizeof buf, 0) == -1) {