Differential D25500 Diff 73887 head/sbin/savecore/savecore.c

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head/sbin/savecore/savecore.c

Show First 20 Lines • Show All 967 Lines • ▼ Show 20 Lines	closeall:
fclose(core);		fclose(core);

closefd:		closefd:
free(dumpkey);		free(dumpkey);
free(temp);		free(temp);
close(fddev);		close(fddev);
}		}

		/* Prepend "/dev/" to any arguments that don't already have it */
static char **		static char **
		devify(int argc, char **argv)
		{
		char **devs;
		int i, l;

		devs = malloc(argc * sizeof(*argv));
		if (devs == NULL) {
		logmsg(LOG_ERR, "malloc(): %m");
		exit(1);
		}
		for (i = 0; i < argc; i++) {
		if (strncmp(argv[i], _PATH_DEV, sizeof(_PATH_DEV) - 1) == 0)
		devs[i] = strdup(argv[i]);
		else {
		char *fullpath;

		fullpath = malloc(PATH_MAX);
		if (fullpath == NULL) {
		logmsg(LOG_ERR, "malloc(): %m");
		exit(1);
		}
		l = snprintf(fullpath, PATH_MAX, "%s%s", _PATH_DEV,
		argv[i]);
		if (l < 0) {
		logmsg(LOG_ERR, "snprintf(): %m");
		exit(1);
		} else if (l >= PATH_MAX) {
		logmsg(LOG_ERR, "device name too long");
		exit(1);
		}
		devs[i] = fullpath;
		}
		}
		return (devs);
		}

		static char **
enum_dumpdevs(int *argcp)		enum_dumpdevs(int *argcp)
{		{
struct fstab *fsp;		struct fstab *fsp;
char **argv;		char **argv;
int argc, n;		int argc, n;

/*		/*
* We cannot use getfsent(3) in capability mode, so we must		* We cannot use getfsent(3) in capability mode, so we must
▲ Show 20 Lines • Show All 79 Lines • ▼ Show 20 Lines	usage(void)
exit(1);		exit(1);
}		}

int		int
main(int argc, char **argv)		main(int argc, char **argv)
{		{
cap_rights_t rights;		cap_rights_t rights;
const char *savedir;		const char *savedir;
		char **devs;
int i, ch, error, savedirfd;		int i, ch, error, savedirfd;

checkfor = compress = clear = force = keep = verbose = 0;		checkfor = compress = clear = force = keep = verbose = 0;
nfound = nsaved = nerr = 0;		nfound = nsaved = nerr = 0;
savedir = ".";		savedir = ".";

openlog("savecore", LOG_PERROR, LOG_DAEMON);		openlog("savecore", LOG_PERROR, LOG_DAEMON);
signal(SIGINFO, infohandler);		signal(SIGINFO, infohandler);
▲ Show 20 Lines • Show All 47 Lines • ▼ Show 20 Lines	if (error) {
logmsg(LOG_ERR, "chdir(%s): %m", argv[0]);		logmsg(LOG_ERR, "chdir(%s): %m", argv[0]);
exit(1);		exit(1);
}		}
savedir = argv[0];		savedir = argv[0];
argc--;		argc--;
argv++;		argv++;
}		}
if (argc == 0)		if (argc == 0)
argv = enum_dumpdevs(&argc);		devs = enum_dumpdevs(&argc);
		else
		devs = devify(argc, argv);

savedirfd = open(savedir, O_RDONLY \| O_DIRECTORY);		savedirfd = open(savedir, O_RDONLY \| O_DIRECTORY);
if (savedirfd < 0) {		if (savedirfd < 0) {
logmsg(LOG_ERR, "open(%s): %m", savedir);		logmsg(LOG_ERR, "open(%s): %m", savedir);
exit(1);		exit(1);
}		}
(void)cap_rights_init(&rights, CAP_CREATE, CAP_FCNTL, CAP_FSTATAT,		(void)cap_rights_init(&rights, CAP_CREATE, CAP_FCNTL, CAP_FSTATAT,
CAP_FSTATFS, CAP_PREAD, CAP_SYMLINKAT, CAP_FTRUNCATE, CAP_UNLINKAT,		CAP_FSTATFS, CAP_PREAD, CAP_SYMLINKAT, CAP_FTRUNCATE, CAP_UNLINKAT,
CAP_WRITE);		CAP_WRITE);
if (caph_rights_limit(savedirfd, &rights) < 0) {		if (caph_rights_limit(savedirfd, &rights) < 0) {
logmsg(LOG_ERR, "cap_rights_limit(): %m");		logmsg(LOG_ERR, "cap_rights_limit(): %m");
exit(1);		exit(1);
}		}

/* Enter capability mode. */		/* Enter capability mode. */
init_caps(argc, argv);		init_caps(argc, devs);

for (i = 0; i < argc; i++)		for (i = 0; i < argc; i++)
DoFile(savedir, savedirfd, argv[i]);		DoFile(savedir, savedirfd, devs[i]);

/* Emit minimal output. */		/* Emit minimal output. */
if (nfound == 0) {		if (nfound == 0) {
if (checkfor) {		if (checkfor) {
if (verbose)		if (verbose)
printf("No dump exists\n");		printf("No dump exists\n");
exit(1);		exit(1);
}		}
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