43 lines
789 B
C
43 lines
789 B
C
|
/* This file is part of ToaruOS and is released under the terms
|
||
|
|
* of the NCSA / University of Illinois License - see LICENSE.md
|
||
|
|
* Copyright (C) 2014-2018 K. Lange
|
||
|
|
*/
|
||
|
|
/*
|
||
|
|
* Dump grep
|
||
|
|
*/
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#define LINE_SIZE 4096
|
||
|
|
|
||
|
|
int main(int argc, char ** argv) {
|
||
|
|
if (argc < 2) {
|
||
|
|
fprintf(stderr, "usage: %s thing-to-grep-for\n", argv[0]);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
char * needle = argv[1];
|
||
|
|
char buf[LINE_SIZE];
|
||
|
|
int ret = 1;
|
||
|
|
|
||
|
|
while (fgets(buf, LINE_SIZE, stdin)) {
|
||
|
|
char * found = strstr(buf, needle);
|
||
|
|
if (found) {
|
||
|
|
*found = '\0';
|
||
|
|
found += strlen(needle);
|
||
|
|
fprintf(stdout, "%s\033[1;31m%s\033[0m%s", buf, needle, found);
|
||
|
|
ret = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* vim:tabstop=4
|
||
|
|
* vim:noexpandtab
|
||
|
|
* vim:shiftwidth=4
|
||
|
|
*/
|