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Differential D18578 Diff 52080 contrib/openrc/src/rc/do_e.c

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contrib/openrc/src/rc/do_e.c

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/*
* Copyright (c) 2007-2015 The OpenRC Authors.
* See the Authors file at the top-level directory of this distribution and
* https://github.com/OpenRC/openrc/blob/master/AUTHORS
*
* This file is part of OpenRC. It is subject to the license terms in
* the LICENSE file found in the top-level directory of this
* distribution and at https://github.com/OpenRC/openrc/blob/master/LICENSE
* This file may not be copied, modified, propagated, or distributed
* except according to the terms contained in the LICENSE file.
*/
#define SYSLOG_NAMES
#include <sys/types.h>
#include <sys/time.h>
#include <errno.h>
#include <ctype.h>
#include <inttypes.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <string.h>
#include <syslog.h>
#include <time.h>
#include <unistd.h>
#include "einfo.h"
#include "helpers.h"
/* usecs to wait while we poll the file existance */
#define WAIT_INTERVAL 20000000
const char *applet = NULL;
static int syslog_decode(char *name, const CODE *codetab)
{
const CODE *c;
if (isdigit((unsigned char)*name))
return atoi(name);
for (c = codetab; c->c_name; c++)
if (! strcasecmp(name, c->c_name))
return c->c_val;
return -1;
}
int main(int argc, char **argv)
{
int retval = EXIT_SUCCESS;
int i;
size_t l = 0;
char *message = NULL;
char *p;
int level = 0;
struct timespec ts;
struct timeval stop, now;
int (*e) (const char *, ...) EINFO_PRINTF(1, 2) = NULL;
int (*ee) (int, const char *, ...) EINFO_PRINTF(2, 3) = NULL;
applet = basename_c(argv[0]);
argc--;
argv++;
if (strcmp(applet, "eval_ecolors") == 0) {
printf("GOOD='%s'\nWARN='%s'\nBAD='%s'\nHILITE='%s'\nBRACKET='%s'\nNORMAL='%s'\n",
ecolor(ECOLOR_GOOD),
ecolor(ECOLOR_WARN),
ecolor(ECOLOR_BAD),
ecolor(ECOLOR_HILITE),
ecolor(ECOLOR_BRACKET),
ecolor(ECOLOR_NORMAL));
exit(EXIT_SUCCESS);
}
if (argc > 0) {
if (strcmp(applet, "eend") == 0 ||
strcmp(applet, "ewend") == 0 ||
strcmp(applet, "veend") == 0 ||
strcmp(applet, "vweend") == 0 ||
strcmp(applet, "ewaitfile") == 0)
{
errno = 0;
retval = (int)strtoimax(argv[0], &p, 0);
if (!p || *p != '\0')
errno = EINVAL;
if (errno)
retval = EXIT_FAILURE;
else {
argc--;
argv++;
}
} else if (strcmp(applet, "esyslog") == 0 ||
strcmp(applet, "elog") == 0) {
p = strchr(argv[0], '.');
if (!p ||
(level = syslog_decode(p + 1, prioritynames)) == -1)
eerrorx("%s: invalid log level `%s'", applet, argv[0]);
if (argc < 3)
eerrorx("%s: not enough arguments", applet);
unsetenv("EINFO_LOG");
setenv("EINFO_LOG", argv[1], 1);
argc -= 2;
argv += 2;
}
}
if (strcmp(applet, "ewaitfile") == 0) {
if (errno)
eerrorx("%s: invalid timeout", applet);
if (argc == 0)
eerrorx("%s: not enough arguments", applet);
gettimeofday(&stop, NULL);
/* retval stores the timeout */
stop.tv_sec += retval;
ts.tv_sec = 0;
ts.tv_nsec = WAIT_INTERVAL;
for (i = 0; i < argc; i++) {
ebeginv("Waiting for %s", argv[i]);
for (;;) {
if (exists(argv[i]))
break;
if (nanosleep(&ts, NULL) == -1)
return EXIT_FAILURE;
gettimeofday(&now, NULL);
if (retval <= 0)
continue;
if (timercmp(&now, &stop, <))
continue;
eendv(EXIT_FAILURE,
"timed out waiting for %s", argv[i]);
return EXIT_FAILURE;
}
eendv(EXIT_SUCCESS, NULL);
}
return EXIT_SUCCESS;
}
if (argc > 0) {
for (i = 0; i < argc; i++)
l += strlen(argv[i]) + 1;
message = xmalloc(l);
p = message;
for (i = 0; i < argc; i++) {
if (i > 0)
*p++ = ' ';
l = strlen(argv[i]);
memcpy(p, argv[i], l);
p += l;
}
*p = 0;
}
if (strcmp(applet, "einfo") == 0)
e = einfo;
else if (strcmp(applet, "einfon") == 0)
e = einfon;
else if (strcmp(applet, "ewarn") == 0)
e = ewarn;
else if (strcmp(applet, "ewarnn") == 0)
e = ewarnn;
else if (strcmp(applet, "eerror") == 0) {
e = eerror;
retval = 1;
} else if (strcmp(applet, "eerrorn") == 0) {
e = eerrorn;
retval = 1;
} else if (strcmp(applet, "ebegin") == 0)
e = ebegin;
else if (strcmp(applet, "eend") == 0)
ee = eend;
else if (strcmp(applet, "ewend") == 0)
ee = ewend;
else if (strcmp(applet, "esyslog") == 0) {
elog(retval, "%s", message);
retval = 0;
} else if (strcmp(applet, "veinfo") == 0)
e = einfov;
else if (strcmp(applet, "veinfon") == 0)
e = einfovn;
else if (strcmp(applet, "vewarn") == 0)
e = ewarnv;
else if (strcmp(applet, "vewarnn") == 0)
e = ewarnvn;
else if (strcmp(applet, "vebegin") == 0)
e = ebeginv;
else if (strcmp(applet, "veend") == 0)
ee = eendv;
else if (strcmp(applet, "vewend") == 0)
ee = ewendv;
else if (strcmp(applet, "eindent") == 0)
eindent();
else if (strcmp(applet, "eoutdent") == 0)
eoutdent();
else if (strcmp(applet, "veindent") == 0)
eindentv();
else if (strcmp(applet, "veoutdent") == 0)
eoutdentv();
else {
eerror("%s: unknown applet", applet);
retval = EXIT_FAILURE;
}
if (message) {
if (e)
e("%s", message);
else if (ee)
ee(retval, "%s", message);
} else {
if (e)
e(NULL);
else if (ee)
ee(retval, NULL);
}
free(message);
return retval;
}