Apple-2gs-SW/gopher
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use TCPIPReadLineTCP for text files.

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This commit is contained in:
Kelvin Sherlock 2012-04-05 22:52:09 -04:00
parent 4ca427272e
commit b0ffd6cfad
1 changed files with 63 additions and 82 deletions
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145
gopher.c
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@ -99,7 +99,7 @@ int gopher_binary(Word ipid, FILE *file)
if (rv && !count) break;
if (!count) continue;
fwrite(buffer, count, 1, file);
fwrite(buffer, 1, count, file);
}
@ -113,81 +113,65 @@ int gopher_text(Word ipid, FILE *file)
// . \r\n
// any leading '.' must be doubled.
enum {
kStateText = 0,
kStateCR,
kStateEOL,
kStateDot,
kStateDotCR,
kStateEOF
};
Word eof = 0;
Word rv = 0;
static char buffer[256];
unsigned state = kStateEOL;
int rv = 0;
// I have bad luck with ReadLineTCP.
while (state != kStateEOF)
{
static char buffer[512];
rrBuff rb;
for(;;)
{
Word count;
Word i;
Handle h;
rlrBuff rb;
TCPIPPoll();
rv = TCPIPReadTCP(ipid, 0, (Ref)buffer, 512, &rb);
count = rb.rrBuffCount;
if (rv == 0 && count == 0) continue;
//fprintf(stderr, "rv = %x, count = %u\n", rv, rb.rrBuffCount);
//if (rv == tcperrConClosing) rv = 0;
if (rv && !count) break;
if (!count) continue;
// scan the buffer for a line.
for (i = 0; i < count; ++i)
{
char c = buffer[i];
if (c == '.')
{
if (state == kStateEOL) state = kStateDot;
else fputc(c, file);
continue;
}
if (c == '\r')
{
if (state == kStateDot) state = kStateDotCR;
else state = kStateCR;
continue;
}
if (c == '\n')
{
if (state == kStateCR)
{
state = kStateEOL;
fputc('\r', file);
}
else if (state == kStateDotCR)
{
state = kStateEOF;
break;
}
// otherwise, silently drop?
continue;
}
rv = TCPIPReadLineTCP(ipid,
"\p\r\n",
2,
NULL,
0xffff,
&rb);
{
state = kStateText; // reset if kStateDot.
// . and \r will be silently dropped
fputc(c, file);
}
count = rb.rlrBuffCount;
h = rb.rlrBuffHandle;
if (rv && !count)
{
DisposeHandle(h);
break;
}
HLock(h);
if (count)
{
char *cp;
cp = *((char **)h);
// .. -> .
// . \r\n -> eof
if (*cp == '.')
{
if (count == 1)
{
DisposeHandle(h);
eof = 1;
break;
}
cp++;
count--;
}
fwrite(cp, 1, count, file);
fputc('\r', file);
}
DisposeHandle(h);
}
if (state != kStateEOF)
if (!eof)
fprintf(stderr, "Warning: eof not found.\n");
return rv;
@ -204,7 +188,6 @@ int gopher_dir(Word ipid, FILE *file)
Word count;
Handle h;
#if 1
rlrBuff rb;
TCPIPPoll();
@ -218,16 +201,6 @@ int gopher_dir(Word ipid, FILE *file)
count = rb.rlrBuffCount;
h = rb.rlrBuffHandle;
#else
rrBuff rb;
TCPIPPoll();
rv = TCPIPReadTCP(ipid, 2, NULL, 0xffff, &rb);
count = rb.rrBuffCount;
h = rb.rrBuffHandle;
#endif
#if 0
if (rv || count || _toolErr)
@ -237,8 +210,13 @@ int gopher_dir(Word ipid, FILE *file)
}
#endif
if (rv && !count) break;
if (rv && !count)
{
DisposeHandle(h);
break;
}
HLock(h);
if (count)
{
@ -276,8 +254,11 @@ int gopher_dir(Word ipid, FILE *file)
if (type == 'i')
{
if (tabs[1] == -1)
fprintf(file, "%.*s\r", count, buffer);
else fprintf(file, "%s\r", buffer);
fwrite(buffer, 1, count, file);
else
fputs(buffer, file);
fputc('\r', file);
}
else if (j == 4) // all the tabs.
{