mirror of https://github.com/hsoft/collapseos.git
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdbool.h>
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#include "common.h"
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/* Push specified file to specified device blk device, starting from blkno
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* and upwards.
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*/
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int main(int argc, char **argv)
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{
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if (argc != 4) {
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fprintf(stderr, "Usage: ./blkup device blkno fname\n");
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return 1;
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}
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unsigned int blkno = strtol(argv[2], NULL, 10);
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FILE *fp = fopen(argv[3], "r");
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if (!fp) {
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fprintf(stderr, "Can't open %s.\n", argv[3]);
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return 1;
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}
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int fd = ttyopen(argv[1]);
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if (fd < 0) {
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fprintf(stderr, "Could not open %s\n", argv[1]);
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return 1;
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}
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char s[0x40];
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char buf[1024] = {0};
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sendcmdp(fd, ": _ 1024 0 DO KEY DUP .x I BLK( + C! LOOP ;");
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sendcmdp(fd, ": Z BLK( 1024 0 FILL ;");
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int returncode = 0;
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while (fread(buf, 1, 1024, fp)) {
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bool allzero = true;
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for (int i=0; i<1024; i++) {
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if (buf[i] != 0) {
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allzero = false;
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break;
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}
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}
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if (allzero) {
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sendcmdp(fd, "Z");
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putchar('Z');
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fflush(stdout);
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} else {
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sendcmd(fd, "_");
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for (int i=0; i<1024; i++) {
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putchar('.');
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fflush(stdout);
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write(fd, &buf[i], 1);
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usleep(1000); // let it breathe
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mread(fd, s, 2); // read hex pair
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s[2] = 0; // null terminate
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unsigned char c = strtol(s, NULL, 16);
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if (c != buf[i]) {
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// mismatch!
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fprintf(stderr, "Mismatch at bno %d (%d) %d != %d.\n", blkno, i, buf[i], c);
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// we don't exit now because we need to "consume" our whole program.
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returncode = 1;
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}
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usleep(1000); // let it breathe
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}
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readprompt(fd);
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if (returncode) break;
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memset(buf, 0, 1024);
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}
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sprintf(s, "%d BLK> ! BLK!", blkno);
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sendcmdp(fd, s);
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blkno++;
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}
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sendcmdp(fd, "FORGET _");
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printf("Done!\n");
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fclose(fp);
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return returncode;
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}
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