toaruos/apps/basename.c
2018-10-09 21:04:35 +09:00

46 lines
886 B
C

/* vim: tabstop=4 shiftwidth=4 noexpandtab
* This file is part of ToaruOS and is released under the terms
* of the NCSA / University of Illinois License - see LICENSE.md
* Copyright (C) 2018 K. Lange
*
* basename - print file name
*/
#include <stdio.h>
#include <string.h>
int main(int argc, char * argv[]) {
if (argc < 2) {
fprintf(stderr, "%s: expected argument\n", argv[0]);
return 1;
}
char * s = argv[1];
char * c = NULL;
do {
while (*s == '/') {
*s = '\0'; s++;
if (!*s) goto _done;
}
c = s;
s = strchr(c,'/');
} while (s);
_done:
if (!c) {
/* Special case */
fprintf(stdout, "/\n");
return 0;
}
if (argc > 2) {
char * suffix = argv[2];
char * found = strstr(c + strlen(c) - strlen(suffix), suffix);
if (found && (found - c == (int)(strlen(c)-strlen(suffix)))) {
*found = '\0';
}
}
fprintf(stdout, "%s\n", c);
return 0;
}