mirror of
https://github.com/hermitcore/libhermit.git
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124 lines
3.2 KiB
C
124 lines
3.2 KiB
C
/*
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* =====================================================================================
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*
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* Filename: opt.c
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*
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* Description:
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*
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* Version: 1.0
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* Created: 25.07.2014 15:01:32
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* Revision: none
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* Compiler: gcc
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*
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* Author: Georg Wassen (gw) (),
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* Company:
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*
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* =====================================================================================
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*/
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#define _GNU_SOURCE
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#include "opt.h"
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <libgen.h>
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#ifdef __hermit__
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char *basename(char *path)
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{
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char *p;
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if( path == NULL || *path == '\0' )
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return ".";
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p = path + strlen(path) - 1;
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while( *p == '/' ) {
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if( p == path )
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return path;
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*p-- = '\0';
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}
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while( p >= path && *p != '/' )
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p--;
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return p + 1;
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}
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#endif
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int opt(int argc, char *argv[], struct opt *opt)
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{
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char c;
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char *p;
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opt->secs = 4;
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opt->mode = stat;
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opt->threshold = 0;
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opt->hist_cnt = 100;
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opt->hist_width = 50;
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opt->list_cnt = 1000;
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/*
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* read command line arguments and store them in opt
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*/
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while ((c = getopt(argc, argv, "b:c:d:hr:t:")) != -1) {
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switch (c) {
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case 'h' :
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printf("usage: %s <options>\n", basename(argv[0]));
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printf(" -h help \n");
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printf(" -d N duration (in sec or 1m, 1h) \n");
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printf(" -r R report: hist, list\n");
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printf(" -c N count (hist or list)\n");
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printf(" -b N hist bin width (in ticks)\n");
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printf(" -t N threshold (in ticks)\n");
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exit(1);
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break;
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case 'd' :
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opt->secs = (unsigned)strtoul(optarg, &p, 0);
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if (p[0] == 'm' || p[0] == 'M') opt->secs *= 60u;
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else if (p[0] == 'h' || p[0] == 'H') opt->secs *= (60u*60u);
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else if (strlen(p) > 0) {
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printf("ERROR: Parameter: unrecognized characters in time: '%s'\n", p);
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return 2;
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}
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break;
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case 'r' :
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if (strncmp(optarg, "hist", 4) == 0) {
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opt->mode = hist;
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} else if (strncmp(optarg, "list", 4) == 0) {
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opt->mode = list;
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}
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break;
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case 'c' :
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if (opt->mode == hist) {
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opt->hist_cnt = (unsigned)strtoul(optarg, &p, 0);
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} else if (opt->mode == list) {
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opt->list_cnt = (unsigned)strtoul(optarg, &p, 0);
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}
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break;
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case 'b' :
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opt->hist_width = (unsigned)strtoul(optarg, &p, 0);
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break;
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case 't' :
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opt->threshold = (unsigned)strtoul(optarg, &p, 0);
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break;
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}
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}
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if (opt->mode == hist) {
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if (opt->hist_cnt == 0) {
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opt->hist_cnt = 1;
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}
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if (opt->hist_width == 0) {
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opt->hist_width = 1;
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}
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} else if (opt->mode == list) {
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if (opt->list_cnt == 0) {
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opt->list_cnt = 1;
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}
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}
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return 0;
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}
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