/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include <stdlib.h>#include <string.h>#include <stdio.h> voidmain(int argc, char **argv){	char *f, *b, *s;	int n; 	if(argc < 2 || argc > 3){		fprintf(stderr, "Usage: basename string [suffix]\n");		exit(1);	}	s = argv[1];	b = s + strlen(s) - 1;	while(b > s && *b == '/')		b--;	*++b = 0;	if(b == s+1 && s[0] == '/') {		printf("/");		exit(0);	}	/* now b is after last char of string, trailing slashes removed */ 	for(f = b; f >= s; f--)		if(*f == '/'){			f++;			break;		}	if(f < s)		f = s; 	/* now f is first char after last remaining slash, or first char */ 	if(argc == 3){		n = strlen(argv[2]);		if(n < b-f && strncmp(b-n, argv[2], n) == 0){			b -= n;			*b = 0;		}	}	printf("%s\n", f);	exit(0);}