json_t* extract(json_t* json, char* key)
{
int i, s;
json_t* temp;
switch (json_typeof(json))
{
case JSON_OBJECT:
temp = json_object_get(json, key);
if (temp == NULL)
{break;}
return temp;
case JSON_ARRAY:
s = json_array_size(json);
if (s == 0)
{json_err("index out of bounds", json); break;}
i = estrtol(key);
if ((i < -s) || (i >= s))
{json_err("index out of bounds", json);}
// stupid fix for a stupid modulus operation
while (i<0)
{i+=s;}
return json_array_get(json, i % s);
case JSON_STRING:
case JSON_INTEGER:
case JSON_REAL:
case JSON_TRUE:
case JSON_FALSE:
case JSON_NULL:
default:
break;
}
json_err("has no elements to extract", json);
return json_null();
}
int
main(int argc, char *argv[])
{
char c;
long n = 10;
FILE *fp;
void (*tail)(FILE *, const char *, long) = taketail;
while((c = getopt(argc, argv, "n:")) != -1)
switch(c) {
case 'n':
n = abs(estrtol(optarg, 0));
if(optarg[0] == '+')
tail = dropinit;
break;
default:
exit(EXIT_FAILURE);
}
if(optind == argc)
tail(stdin, "<stdin>", n);
else if(optind == argc-1) {
if(strcmp(argv[optind], "-") == 0) argv[optind] = "/dev/stdin";
if(!(fp = fopen(argv[optind], "r")))
eprintf("fopen %s:", argv[optind]);
tail(fp, argv[optind], n);
fclose(fp);
}
else
eprintf("usage: %s [-n lines] [file]\n", argv[0]);
return EXIT_SUCCESS;
}
int
main(int argc, char *argv[])
{
char c;
long width = 80;
FILE *fp;
while((c = getopt(argc, argv, "bsw:")) != -1)
switch(c) {
case 'b':
bflag = true;
break;
case 's':
sflag = true;
break;
case 'w':
width = estrtol(optarg, 0);
break;
default:
exit(EXIT_FAILURE);
}
if(optind == argc)
fold(stdin, width);
else for(; optind < argc; optind++) {
if(strcmp(argv[optind], "-") == 0) argv[optind] = "/dev/stdin";
if(!(fp = fopen(argv[optind], "r")))
eprintf("fopen %s:", argv[optind]);
fold(fp, width);
fclose(fp);
}
return EXIT_SUCCESS;
}
int
main(int argc, char *argv[])
{
char c;
FILE *fp;
while((c = getopt(argc, argv, "b:i:s:")) != -1)
switch(c) {
case 'b':
mode = optarg[0];
if(optarg[0] == 'p')
regcomp(&preg, &optarg[1], REG_NOSUB);
else if(!strchr("ant", optarg[0]) || optarg[1] != '\0')
eprintf("usage: %s [-b mode] [-i increment] [-s separator] [file...]\n", argv[0]);
break;
case 'i':
incr = estrtol(optarg, 0);
break;
case 's':
sep = optarg;
break;
default:
exit(2);
}
if(optind == argc)
nl(stdin);
else for(; optind < argc; optind++) {
if(strcmp(argv[optind], "-") == 0) argv[optind] = "/dev/stdin";
if(!(fp = fopen(argv[optind], "r")))
eprintf("fopen %s:", argv[optind]);
nl(fp);
fclose(fp);
}
return EXIT_SUCCESS;
}
json_t* extract(json_t* json, char* key)
{
int i, s;
json_t* temp;
switch (json_typeof(json))
{
case JSON_OBJECT:
temp = json_object_get(json, key);
if (temp == NULL)
{break;}
return temp;
case JSON_ARRAY:
s = json_array_size(json);
if (s == 0)
{break;}
i = estrtol(key);
return json_array_get(json, i % s);
case JSON_STRING:
case JSON_INTEGER:
case JSON_REAL:
case JSON_TRUE:
case JSON_FALSE:
case JSON_NULL:
default:
break;
}
json_err("has no elements to extract", json);
return json_null();
}
int
main(int argc, char *argv[])
{
char buf[BUFSIZ], c;
char *fmt = "%c";
struct tm *now = NULL;
struct tm *(*tztime)(const time_t *) = localtime;
const char *tz = "local";
time_t t;
t = time(NULL);
while((c = getopt(argc, argv, "d:u")) != -1)
switch(c) {
case 'd':
t = estrtol(optarg, 0);
break;
case 'u':
tztime = gmtime;
tz = "gm";
break;
default:
exit(EXIT_FAILURE);
}
if(optind < argc && argv[optind][0] == '+')
fmt = &argv[optind][1];
if(!(now = tztime(&t)))
eprintf("%stime failed\n", tz);
strftime(buf, sizeof buf, fmt, now);
puts(buf);
return EXIT_SUCCESS;
}
struct group *xgetgrnamid(char *group)
{
struct group *gr = getgrnam(group);
gid_t gid;
if (!gr) {
char *s = 0;
gid = estrtol(group, &s, 10);
if (!errno && s && !*s) gr = getgrgid(gid);
}
if (!gr) perror_exit("group '%s'", group);
return gr;
}
struct passwd *xgetpwnamid(char *user)
{
struct passwd *up = getpwnam(user);
uid_t uid;
if (!up) {
char *s = 0;
uid = estrtol(user, &s, 10);
if (!errno && s && !*s) up = getpwuid(uid);
}
if (!up) perror_exit("user '%s'", user);
return up;
}
int main(int argc, char** argv) {
long level = -1;
bool read = true;
bool clear_before = false;
bool clear_after = false;
/* Parse command line options */
OPTBEGIN {
case 'C':
clear_before = true;
read = false;
break;
case 'c':
clear_after = true;
read = true;
break;
case 'n':
level = estrtol(EOPTARG(usage()), 10);
break;
default:
usage();
} OPTEND;
/* clear the before before doing anything else */
if (clear_before)
eklogctl(SYSLOG_ACTION_CLEAR, NULL, 0);
/* Set the log level */
if (level >= 0)
eklogctl(SYSLOG_ACTION_CONSOLE_LEVEL, NULL, level);
/* Read the raw log data and print it out */
if (read) {
int nbytes = eklogctl(SYSLOG_ACTION_SIZE_BUFFER, NULL, 0);
char* buf = (char*)emalloc(nbytes);
eklogctl(SYSLOG_ACTION_READ_ALL, buf, nbytes);
nbytes = efwrite(buf, 1, nbytes, stdout);
if (buf[nbytes - 1] != '\n')
fputc('\n', stdout);
free(buf);
}
/* Clear the log after we've read it out */
if (clear_after)
eklogctl(SYSLOG_ACTION_CLEAR, NULL, 0);
return 0;
}
int
main(int argc, char *argv[])
{
int cflag = 0, sflag = 0;
int fd, i, ret = 0;
long size = 0;
ARGBEGIN {
case 's':
sflag = 1;
size = estrtol(EARGF(usage()), 10);
break;
case 'c':
cflag = 1;
break;
default:
usage();
} ARGEND;
if (argc < 1 || sflag == 0)
usage();
for (i = 0; i < argc; i++) {
fd = open(argv[i], O_WRONLY | (cflag ? 0 : O_CREAT), 0644);
if (fd < 0) {
weprintf("open: cannot open `%s' for writing:", argv[i]);
ret = 1;
continue;
}
if (ftruncate(fd, size) < 0) {
weprintf("ftruncate: cannot open `%s' for writing:", argv[i]);
ret = 1;
}
close(fd);
}
return ret;
}
int
main(int argc, char *argv[])
{
DIR *dp;
struct dirent *entry;
pid_t pid;
struct procstat ps;
char cmdline[BUFSIZ], *cmd, *cmdbase = NULL, *p, *arg = NULL;
int i, found = 0;
int sflag = 0, oflag = 0;
struct pidentry *pe, *tmp;
ARGBEGIN {
case 's':
sflag = 1;
break;
case 'o':
oflag = 1;
arg = EARGF(usage());
break;
default:
usage();
} ARGEND;
if (!argc)
return 1;
TAILQ_INIT(&omitpid_head);
for (p = strtok(arg, ","); p; p = strtok(NULL, ",")) {
pe = emalloc(sizeof(*pe));
if (strcmp(p, "%PPID") == 0)
pe->pid = getppid();
else
pe->pid = estrtol(p, 10);
TAILQ_INSERT_TAIL(&omitpid_head, pe, entry);
}
if (!(dp = opendir("/proc")))
eprintf("opendir /proc:");
while ((entry = readdir(dp))) {
if (!pidfile(entry->d_name))
continue;
pid = estrtol(entry->d_name, 10);
if (oflag) {
TAILQ_FOREACH(pe, &omitpid_head, entry)
if (pe->pid == pid)
break;
if (pe)
continue;
}
if (parsestat(pid, &ps) < 0)
continue;
if (parsecmdline(ps.pid, cmdline,
sizeof(cmdline)) < 0) {
cmd = ps.comm;
cmdbase = cmd;
} else {
if ((p = strchr(cmdline, ' ')))
*p = '\0';
cmd = cmdline;
cmdbase = basename(cmdline);
}
/* Workaround for login shells */
if (cmd[0] == '-')
cmd++;
for (i = 0; i < argc; i++) {
if (strcmp(cmd, argv[i]) == 0 ||
strcmp(cmdbase, argv[i]) == 0) {
putword(entry->d_name);
found++;
if (sflag)
goto out;
}
}
}
out:
if (found)
putchar('\n');
closedir(dp);
for (pe = TAILQ_FIRST(&omitpid_head); pe; pe = tmp) {
tmp = TAILQ_NEXT(pe, entry);
TAILQ_REMOVE(&omitpid_head, pe, entry);
free(pe);
}
return 0;
}
int main(int argc, char **argv) {
int i;
int linesold, colsold;
int graphlines = 0;
double delay = 0.5;
char key;
struct iface ifa;
WINDOW *title, *rxgraph, *txgraph, *stats;
bool colors = true;
bool siunits = false;
bool hidescale = false;
bool syncgraphmax = false;
bool fixedlines = false;
memset(&ifa, 0, sizeof ifa);
for (i = 1; i < argc; i++) {
if (!strcmp("-v", argv[i]))
eprintf("%s-%s\n", argv[0], VERSION);
else if (!strcmp("-C", argv[i]))
colors = false;
else if (!strcmp("-s", argv[i]))
siunits = true;
else if (!strcmp("-S", argv[i]))
hidescale = true;
else if (!strcmp("-m", argv[i]))
syncgraphmax = true;
else if (argv[i+1] == NULL || argv[i+1][0] == '-')
usage(argv);
else if (!strcmp("-d", argv[i]))
delay = estrtod(argv[++i]);
else if (!strcmp("-i", argv[i]))
strlcpy(ifa.ifname, argv[++i], IFNAMSIZ);
else if (!strcmp("-l", argv[i])) {
graphlines = estrtol(argv[++i]);
fixedlines = true;
}
}
if (ifa.ifname[0] == '\0')
detectiface(ifa.ifname);
initscr();
curs_set(0);
noecho();
keypad(stdscr, TRUE);
timeout(delay * 1000);
if (colors && has_colors()) {
start_color();
use_default_colors();
init_pair(1, COLOR_GREEN, -1);
init_pair(2, COLOR_RED, -1);
}
signal(SIGWINCH, sighandler);
ifa.rxs = ecalloc(COLS, sizeof(long));
ifa.txs = ecalloc(COLS, sizeof(long));
mvprintw(0, 0, "collecting data from %s for %.2f seconds\n", ifa.ifname, delay);
if (!fixedlines)
graphlines = (LINES-5)/2;
title = newwin(1, COLS, 0, 0);
rxgraph = newwin(graphlines, COLS, 1, 0);
txgraph = newwin(graphlines, COLS, graphlines+1, 0);
stats = newwin(LINES-(graphlines*2+1), COLS, graphlines*2+1, 0);
getdata(&ifa, delay, COLS);
while ((key = getch()) != 'q') {
if (key != ERR)
resize = 1;
getdata(&ifa, delay, COLS);
if (syncgraphmax)
ifa.rxmax = ifa.txmax = MAX(ifa.rxmax, ifa.txmax);
if (resize) {
linesold = LINES;
colsold = COLS;
endwin();
refresh();
if (COLS != colsold) {
arrayresize(&ifa.rxs, COLS, colsold);
arrayresize(&ifa.txs, COLS, colsold);
}
if (LINES != linesold && !fixedlines)
graphlines = (LINES-5)/2;
wresize(title, 1, COLS);
wresize(rxgraph, graphlines, COLS);
wresize(txgraph, graphlines, COLS);
wresize(stats, LINES-(graphlines*2+1), COLS);
mvwin(txgraph, graphlines+1, 0);
mvwin(stats, graphlines*2+1, 0);
resize = 0;
}
werase(title);
mvwprintw(title, 0, COLS/2-7, "interface: %s\n", ifa.ifname);
wnoutrefresh(title);
printgraphw(rxgraph, ifa.rxs, ifa.rxmax, siunits, graphlines, COLS, hidescale, COLOR_PAIR(1));
printgraphw(txgraph, ifa.txs, ifa.txmax, siunits, graphlines, COLS, hidescale, COLOR_PAIR(2));
printstatsw(stats, ifa, siunits, COLS);
doupdate();
}
delwin(title);
delwin(rxgraph);
delwin(txgraph);
delwin(stats);
endwin();
return EXIT_SUCCESS;
}