文件CheckSUM

/** Function: Get File checksum value for win32 Author: Tody Kwok Revsion: 1.0.0.1 (c) Tody 2010 */ #include <stdio.h> #include <stdlib.h> #include <conio2.h> #define progname "wsum.exe" #define header "(c) Tody 2010, FIC Inc." void drawline() { int i=0; textcolor(LIGHTBLUE); for(i=0; i< 79; i++) printf("-"); textcolor(WHITE); } int main(int argc, char *argv[]) { FILE *f; int ch = 0; int i = 0; unsigned int cksum= 0; if (argc < 2) { printf("%s/nUsage:/n %s <filename>", header, progname); return 1; } printf("%s/nCaculate in process, please wait.../n", header, progname); _setcursortype(0); /* no cursor */ drawline(); for (i=1; i< argc; i++) { f = fopen(argv[i],"rb"); /* Open File */ if (f==NULL) { fprintf(stderr, "/n%s not found!/n",argv[i]); continue; } printf("/nComputing.../r"); /* Caculate file checksum */ cksum = 0; /* Reset cksum to default */ ch = fgetc(f); while(ch!=EOF) { cksum += ch; ch = fgetc(f); } printf("checkSum: %04X | %s/n", cksum&0xffff, argv[i]); drawline(); fclose(f); } printf("/nAll Done."); getch(); return 0; }