cploader.c

进行arm－linux嵌入式系统开发时

/**
 * Title: cploader.c
 * Type: C (*.c)
 * Complier: gcc version 3.3.2 20031022 (Red Hat Linux 3.3.2-1)
 * Description: send file to armboard's flash
 * Copyright: Copyright (c) 2004
 * Company: djws
 * author djws
 * version 1.0
 */

/* Copy The Client's Binary Program to Main Program */

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

long
flen(FILE *fp) {
	int i = 0;
	if(fp == NULL)
		return 0;
	if(fseek(fp, 0, SEEK_SET))
		return 0;
	while(!feof(fp)) {
		i++;
		fgetc(fp);
	}
	if(fseek(fp, 0, SEEK_SET))
		return 0;
	return i-1;
}

int
main(int argc, char** argv) {
	char schstr[128];
	char mainprog[128];
	char binprog[128];
	FILE *binfp;
	FILE *mainfp;
	char *buf;
	char tmp[128];
	int len = 0;
	int i, j;
	if(argc < 4) {
		strcpy(schstr, "Copy Client Binary Program Here...");
	}
	else {
		if(strlen(argv[3]) >= 128)
			argv[3][127] = '\0';
		strcpy(schstr, argv[3]);
	}
	if(argc < 3) {
		strcpy(binprog, "loader.bin");
	}
	else {
		if(strlen(argv[2]) > 128)
			argv[2][127] = '\0';
		strcpy(binprog, argv[2]);
	}
	if(argc < 2) {
		strcpy(mainprog, "download");
	}
	else {
		if(strlen(argv[1]) > 128)
			argv[1][127] = '\0';
		strcpy(binprog, argv[1]);
	}
	if((mainfp=fopen(mainprog, "rb+")) == NULL) {
		printf("fail to open the file: %s\nexit.\n", mainprog);
		exit(0);
	}
	if((binfp=fopen(binprog, "rb+")) == NULL) {
		printf("fail to open the file: %s\nexit.\n", binprog);
		exit(0);
	}
	len = flen(mainfp);
	buf = (char *)malloc(len);
	fread((void *)buf, len, 1, mainfp);
	for(i=0;i<len-strlen(schstr);i++) {
		for(j=0;j<strlen(schstr);j++)
			tmp[j] = *(buf+i+j);
		tmp[strlen(schstr)] = '\0';
		if(strcmp(tmp, schstr) == 0)
			break;
	}
	fseek(mainfp, i, SEEK_SET);
 	free(buf);
	len = flen(binfp);
	buf = (char *)malloc(len);
	fread((void *)buf, len, 1, binfp);
	fwrite((void *)buf, len, 1, mainfp);
	free(buf);
	printf("Copy binary program successful!\n");
}