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#include <stdlib.h>
#include <stdio.h>
#if defined __WIN32__
#include <windows.h>
#include <fcntl.h>
#endif
static int read_exact(char *buffer, int len);
static int write_exact(char *buffer, int len);
int main(void)
{
char msg[100];
int msg_len;
#ifdef __WIN32__
_setmode(_fileno( stdin), _O_BINARY);
_setmode(_fileno( stdout), _O_BINARY);
#endif
msg_len = read_exact(msg, 100);
write_exact("Content-type: text/plain\r\n\r\n", 28);
write_exact(msg, msg_len);
exit(EXIT_SUCCESS);
}
/* read from stdin */
#ifdef __WIN32__
static int read_exact(char *buffer, int len)
{
HANDLE standard_input = GetStdHandle(STD_INPUT_HANDLE);
unsigned read_result;
unsigned sofar = 0;
if (!len) { /* Happens for "empty packages */
return 0;
}
for (;;) {
if (!ReadFile(standard_input, buffer + sofar,
len - sofar, &read_result, NULL)) {
return -1; /* EOF */
}
if (!read_result) {
return -2; /* Interrupted while reading? */
}
sofar += read_result;
if (sofar == len) {
return len;
}
}
}
#else
static int read_exact(char *buffer, int len) {
int i, got = 0;
do {
if ((i = read(0, buffer + got, len - got)) <= 0)
return(i);
got += i;
} while (got < len);
return len;
}
#endif
/* write to stdout */
#ifdef __WIN32__
static int write_exact(char *buffer, int len)
{
HANDLE standard_output = GetStdHandle(STD_OUTPUT_HANDLE);
unsigned written;
if (!WriteFile(standard_output, buffer, len, &written, NULL)) {
return -1; /* Broken Pipe */
}
if (written < ((unsigned) len)) {
/* This should not happen, standard output is not blocking? */
return -2;
}
return (int) written;
}
#else
static int write_exact(char *buffer, int len) {
int i, wrote = 0;
do {
if ((i = write(1, buffer + wrote, len - wrote)) <= 0)
return i;
wrote += i;
} while (wrote < len);
return len;
}
#endif
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