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/*
* Read a line from a descriptor with fgets
*
* $Id: readline.c 377 2007-03-12 20:48:05Z bortz $
*
*/
#include "echoping.h"
int
readline(fs, ptr, maxlen, ln)
FILE *fs;
char *ptr;
int maxlen;
unsigned short ln;
{
int n = 1;
char *rc;
int r;
/* Reading with fgets or fread instead of read one-character-at-a-time is
* more than ten times faster, on a local server. */
if (ln) {
rc = fgets(ptr, maxlen + 1, fs);
if (rc == NULL) {
if (timeout_flag)
return n;
return (-1);
}
n = strlen(rc);
return n;
} else {
while (n < maxlen) {
r = fread(ptr, 1, maxlen, fs);
if (timeout_flag)
return r;
if (r == 0) {
if (n == 1)
return (0); /* EOF, no data read */
else
break; /* EOF, some data was read */
}
n = n + r;
}
}
return (n);
}
#ifdef OPENSSL
char SSL_buffer[MAXTOREAD];
int buf_ptr;
int buf_end;
int
SSL_readline(sslh, ptr, maxlen, ln)
SSL *sslh;
char *ptr;
int maxlen;
unsigned short ln;
{
int rc = 0;
int n = 0;
int i, oi;
if (ln) {
/* Empty buffer */
if (buf_end == 0) {
rc = SSL_read(sslh, SSL_buffer, maxlen);
if (rc == -1)
return rc;
buf_end = rc;
buf_ptr = 0;
}
/* No more data in the buffer */
else if (buf_ptr == buf_end) {
buf_ptr = 0;
rc = SSL_read(sslh, SSL_buffer, maxlen);
if (rc == -1)
return rc;
buf_end = rc;
} else if (SSL_buffer[buf_end] != '\n') {
/* We have a probleme here is the first SSL_read sent back a
* text not finished by a \n. See www.SSL.de for an example.
* We get more data. See bug #230384 */
rc = SSL_read(sslh, SSL_buffer + buf_end, maxlen);
if (rc == -1)
return rc;
buf_end = buf_end + rc;
}
for (oi = buf_ptr, i = buf_ptr;
i <= buf_end && SSL_buffer[i] != '\n'; i++) {
*ptr++ = SSL_buffer[i];
buf_ptr++;
}
if (SSL_buffer[i] == '\n')
buf_ptr++;
*ptr = '\0';
/* if (ln) printf ("SSL_readline returns %d (%s)\n", i - oi,
* SSL_buffer); */
return (i - oi);
} else {
/* OpenSSL reads at most 4096 characters */
rc = 1; /* Just to avoid exiting too soon */
while (n < maxlen && rc != 0) {
if ((buf_end == 0) || (buf_ptr > buf_end)) {
rc = SSL_read(sslh, ptr, maxlen);
buf_end = 0;
buf_ptr = 0;
} else {
for (i = buf_ptr; i < maxlen && i <= buf_end; i++) {
*ptr++ = SSL_buffer[i];
rc++;
}
buf_ptr = i;
}
n = n + rc;
}
return n;
}
}
#endif
#ifdef GNUTLS
char TLS_buffer[MAXTOREAD];
int buf_ptr;
int buf_end;
int
TLS_readline(session, ptr, maxlen, ln)
gnutls_session session;
char *ptr;
int maxlen;
unsigned short ln;
{
int rc = 0;
int n = 0;
int i, oi;
if (ln) {
/* Empty buffer */
if (buf_end == 0) {
rc = gnutls_record_recv(session, TLS_buffer, maxlen);
if (rc == -1)
return rc;
buf_end = rc;
buf_ptr = 0;
}
/* No more data in the buffer */
else if (buf_ptr == buf_end) {
buf_ptr = 0;
rc = gnutls_record_recv(session, TLS_buffer, maxlen);
if (rc == -1)
return rc;
buf_end = rc;
} else if (TLS_buffer[buf_end] != '\n') {
rc = gnutls_record_recv(session, TLS_buffer + buf_end,
maxlen);
if (rc == -1)
return rc;
buf_end = buf_end + rc;
}
for (oi = buf_ptr, i = buf_ptr;
i <= buf_end && TLS_buffer[i] != '\n'; i++) {
*ptr++ = TLS_buffer[i];
buf_ptr++;
}
if (TLS_buffer[i] == '\n')
buf_ptr++;
*ptr = '\0';
/* printf ("DEBUG: TLS_readline returns %d (%s)\n", i - oi,
* TLS_buffer); */
return (i - oi);
} else {
rc = 1; /* Just to avoid exiting too soon */
while (n < maxlen && rc > 0) {
if ((buf_end == 0) || (buf_ptr > buf_end)) {
rc = gnutls_record_recv(session, ptr, maxlen);
buf_end = 0;
buf_ptr = 0;
} else {
for (i = buf_ptr; i < maxlen && i <= buf_end; i++) {
*ptr++ = TLS_buffer[i];
rc++;
/* printf ("DEBUG: Now %d chars read\n",
* rc); */
}
buf_ptr = i;
}
if (rc > 0)
n = n + rc;
/* printf ("DEBUG: Now %d chars to send\n", n); */
}
return n;
}
}
#endif
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