1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/cp.c	Thu Aug 25 08:53:01 2011 +0300
     1.3 @@ -0,0 +1,60 @@
     1.4 +/*! cc -o cp cp.c */
     1.5 +#include <stdio.h>
     1.6 +#include <string.h>
     1.7 +#include <errno.h>
     1.8 +#include <unistd.h>
     1.9 +#include <sys/types.h>
    1.10 +#include <sys/stat.h>
    1.11 +
    1.12 +int copy_file(const char *sname, const char *dname);
    1.13 +
    1.14 +char buf[4096];
    1.15 +
    1.16 +int main(int argc, char **argv)
    1.17 +{
    1.18 +	int i, src_count = argc - 2;
    1.19 +
    1.20 +	if(src_count > 1) {
    1.21 +		struct stat st;
    1.22 +		char *to_dir = argv[argc - 1];
    1.23 +
    1.24 +		if(stat(to_dir, &st) == -1) {
    1.25 +			fprintf(stderr, "failed to stat %s: %s\n", to_dir, strerror(errno));
    1.26 +			return 1;
    1.27 +		}
    1.28 +
    1.29 +		for(i=0; i<src_count; i++) {
    1.30 +			sprintf(buf, "%s/%s", to_dir, argv[i+1]);
    1.31 +			if(copy_file(argv[i+1], buf) == -1) {
    1.32 +				return 1;
    1.33 +			}
    1.34 +		}
    1.35 +		return 0;
    1.36 +	}
    1.37 +	
    1.38 +	return copy_file(argv[1], argv[2]) == -1 ? 1 : 0;
    1.39 +}
    1.40 +
    1.41 +int copy_file(const char *sname, const char *dname)
    1.42 +{
    1.43 +	FILE *src, *dst;
    1.44 +	size_t brd;
    1.45 +
    1.46 +	if(!(src = fopen(sname, "rb"))) {
    1.47 +		fprintf(stderr, "failed to open source file %s: %s\n", sname, strerror(errno));
    1.48 +		return -1;
    1.49 +	}
    1.50 +	if(!(dst = fopen(dname, "wb"))) {
    1.51 +		fclose(src);
    1.52 +		fprintf(stderr, "failed to open destination file %s: %s\n", dname, strerror(errno));
    1.53 +		return -1;
    1.54 +	}
    1.55 +
    1.56 +	while((brd = fread(buf, 1, sizeof buf, src)) > 0) {
    1.57 +		fwrite(buf, 1, brd, dst);
    1.58 +	}
    1.59 +
    1.60 +	fclose(dst);
    1.61 +	fclose(src);
    1.62 +	return 0;
    1.63 +}