mirror of https://github.com/hsoft/collapseos.git
55 lines
1.1 KiB
C
55 lines
1.1 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 "common.h"
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/* Execute code from target file on the target machine.
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fname can be "-" for stdin.
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*/
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int main(int argc, char **argv)
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{
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if (argc != 3) {
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fprintf(stderr, "Usage: ./exec device fname\n");
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return 1;
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}
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FILE *fp = stdin;
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if (strcmp(argv[2], "-") != 0) {
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fp = fopen(argv[2], "r");
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if (fp == NULL) {
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fprintf(stderr, "Could not open %s\n", argv[2]);
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return 1;
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}
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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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set_blocking(fd, 0);
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int c = getc(fp);
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while (c != EOF) {
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if (c == '\n') c = '\r';
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write(fd, &c, 1);
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usleep(1000); // let it breathe
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while (read(fd, &c, 1) == 1) {
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putchar(c);
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fflush(stdout);
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}
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c = getc(fp);
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}
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if (fd > 0) {
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close(fd);
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}
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if (strcmp(argv[2], "-") != 0) {
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fclose(fp);
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}
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printf("Done!\n");
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return 0;
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}
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