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collapseos/tools/upload.c
Virgil Dupras 40b41d296c tools/upload: send data as string hex to avoid control characters
So far, I've been using this tool on remotes that had no control
character handling, but it doesn't work on a TRS-80 4P remote.

Much slower, but at least it works.

Later, I'll try to put some order in this so that we use the fast
lane when possible.
2020-12-16 16:52:54 -05:00

85 lines
2.3 KiB
C

#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include "common.h"
/* Push specified file to specified device running Forth and verify
* that the sent contents is correct.
*/
int main(int argc, char **argv)
{
if (argc != 4) {
fprintf(stderr, "Usage: ./upload device memptr fname\n");
return 1;
}
unsigned int memptr = strtol(argv[2], NULL, 16);
FILE *fp = fopen(argv[3], "r");
if (!fp) {
fprintf(stderr, "Can't open %s.\n", argv[3]);
return 1;
}
fseek(fp, 0, SEEK_END);
unsigned int bytecount = ftell(fp);
fprintf(stderr, "memptr: 0x%04x bytecount: 0x%04x.\n", memptr, bytecount);
if (!bytecount) {
// Nothing to read
fclose(fp);
return 0;
}
if (memptr+bytecount > 0xffff) {
fprintf(stderr, "memptr+bytecount out of range.\n");
fclose(fp);
return 1;
}
rewind(fp);
int fd = ttyopen(argv[1]);
if (fd < 0) {
fprintf(stderr, "Could not open %s\n", argv[1]);
return 1;
}
char s[0x40];
sendcmdp(fd, ": K KEY DUP EMIT ;");
// P: parse digit. We assume '0-9' or 'a-f' range and return a 0-15 value.
sendcmdp(fd, ": P DUP '0' '9' =><= IF '0' ELSE 0x57 THEN - ;");
// R: receive hex pairs. we receive values in hex pairs, re-emit them upon
// reception, and then write them to memory.
sprintf(s,
": R %d %d DO K P 16 * K P OR I C! LOOP ; R",
memptr+bytecount, memptr);
sendcmd(fd, s);
int returncode = 0;
while (fread(s, 1, 1, fp)) {
unsigned char c1, c2;
c1 = s[0];
sprintf(s, "%02x", c1);
for (int i=0; i<2; i++) {
c1 = s[i];
write(fd, &c1, 1);
usleep(1000); // let it breathe
mread(fd, &c2, 1); // read ping back
if (c1 != c2) {
// mismatch!
unsigned int pos = ftell(fp);
fprintf(stderr, "Mismatch at byte %d! %d != %d.\n", pos, c1, c2);
// we don't exit now because we need to "consume" our whole program.
returncode = 1;
}
}
putc('.', stderr);
fflush(stderr);
}
readprompt(fd);
sendcmdp(fd, "FORGET K");
fprintf(stderr, "Done!\n");
fclose(fp);
if (fd > 0) {
close(fd);
}
return returncode;
}