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- /*
- * By: Thomas Buck <taucher.bodensee@gmail.com>
- * Visit: www.xythobuz.org
- */
- #include <stdlib.h>
- #include <stdio.h>
- #include "helper/winSerial.c"
-
- char *fileData = NULL;
-
- void removeFromBeginning(size_t size, size_t remove);
- size_t readFile(char *path);
- size_t getFileSize(FILE *fp);
-
- /*
- Return values:
- 0: Success
- 1: Usage error
- 2: Serial Port Error
- 3: Data File Error
- */
- int main(int argc, char *argv[]) {
- size_t length, written;
-
- if (argc < 3) {
- printf("Usage:\n%s COM1 C:\\file\\to\\send.txt\n", argv[0]);
- return 1;
- } else {
- if (serialOpen(argv[1]) != 0) {
- printf("Error: Could not open %s\n", argv[1]);
- return 2;
- }
-
- length = readFile(argv[2]);
- if (length == 0) {
- printf("Error while reading %s\n", argv[2]);
- return 3;
- }
-
- written = serialWrite(fileData, length);
- while (written < length) {
- removeFromBeginning(length, written);
- length -= written;
- written = serialWrite(fileData, length);
- }
-
- free(fileData);
- fileData = NULL;
- serialClose();
- return 0;
- }
- }
-
- void removeFromBeginning(size_t size, size_t remove) {
- size_t i;
- char *tmp = (char *)malloc((size - remove) * sizeof(char));
-
- for (i = 0; i < (size - remove); i++) {
- tmp[i] = fileData[i + remove];
- }
- free(fileData);
- fileData = tmp;
- }
-
- size_t readFile(char *path) {
- size_t size, i;
- FILE *fp;
-
- fp = fopen(path, "r");
- if (!fp) {
- return 0;
- }
-
- size = getFileSize(fp);
- fileData = (char *)malloc(size * sizeof(char));
- for (i = 0; i < size; i++) {
- fileData[i] = fgetc(fp);
- }
-
- fclose(fp);
- return size;
- }
-
- size_t getFileSize(FILE *fp) {
- size_t size = 0;
- int c;
-
- fseek(fp, 0, 0); // Set file pointer to beginning
-
- do { // Calculate size
- c = fgetc(fp);
- size++;
- } while (c != EOF);
-
- fseek(fp, 0, 0);
-
- return size;
- }
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