Return to modules.c CVS log

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Replace <sys/param.h> with <limits.h> and other less dirty headers where
possible.  Annotate <sys/param.h> lines with their current reasons.  Switch
to PATH_MAX, NGROUPS_MAX, HOST_NAME_MAX+1, LOGIN_NAME_MAX, etc.  Change
MIN() and MAX() to local definitions of MINIMUM() and MAXIMUM() where
sensible to avoid pulling in the pollution.  These are the files confirmed
through binary verification.
ok guenther, millert, doug (helped with the verification protocol)

/*	$OpenBSD: modules.c,v 1.18 2015/01/16 06:40:07 deraadt Exp $	*/
/*
 * Copyright (c) 2008 Joris Vink <joris@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/types.h>
#include <sys/dirent.h>
#include <sys/resource.h>

#include <ctype.h>
#include <stdlib.h>
#include <string.h>

#include "cvs.h"
#include "config.h"

TAILQ_HEAD(, module_info)	modules;

struct module_checkout *current_module = NULL;
char *module_repo_root = NULL;

void
cvs_parse_modules(void)
{
	cvs_log(LP_TRACE, "cvs_parse_modules()");

	TAILQ_INIT(&modules);
	cvs_read_config(CVS_PATH_MODULES, modules_parse_line);
}

void
cvs_modules_list(void)
{
	struct module_info *mi;

	TAILQ_FOREACH(mi, &modules, m_list)
		cvs_printf("%s\n", mi->mi_str);
}

int
modules_parse_line(char *line, int lineno)
{
	int flags;
	struct module_info *mi;
	char *bline, *val, *p, *module, *sp, *dp;
	char *dirname, fpath[PATH_MAX], *prog;

	prog = NULL;
	bline = xstrdup(line);

	flags = 0;
	p = val = line;
	while (!isspace((unsigned char)*p) && *p != '\0')
		p++;

	if (*p == '\0')
		goto bad;

	*(p++) = '\0';
	module = val;

	while (isspace((unsigned char)*p))
		p++;

	if (*p == '\0')
		goto bad;

	val = p;
	while (!isspace((unsigned char)*p) && *p != '\0')
		p++;

	while (val[0] == '-') {
		p = val;
		while (!isspace((unsigned char)*p) && *p != '\0')
			p++;

		if (*p == '\0')
			goto bad;

		*(p++) = '\0';

		switch (val[1]) {
		case 'a':
			if (flags & MODULE_TARGETDIR) {
				cvs_log(LP_NOTICE, "cannot use -a with -d");
				goto bad;
			}
			flags |= MODULE_ALIAS;
			break;
		case 'd':
			if (flags & MODULE_ALIAS) {
				cvs_log(LP_NOTICE, "cannot use -d with -a");
				goto bad;
			}
			flags |= MODULE_TARGETDIR;
			break;
		case 'l':
			flags |= MODULE_NORECURSE;
			break;
		case 'o':
			if (flags != 0 || prog != NULL) {
				cvs_log(LP_NOTICE,
				    "-o cannot be used with other flags");
				goto bad;
			}

			val = p;
			while (!isspace((unsigned char)*val) && *val != '\0')
				val++;
			if (*val == '\0')
				goto bad;

			*(val++) = '\0';
			prog = xstrdup(p);
			p = val;
			flags |= MODULE_RUN_ON_CHECKOUT;
			break;
		case 'i':
			if (flags != 0 || prog != NULL) {
				cvs_log(LP_NOTICE,
				    "-i cannot be used with other flags");
				goto bad;
			}

			if ((val = strchr(p, ' ' )) == NULL)
				goto bad;

			*(val++) = '\0';
			prog = xstrdup(p);
			p = val;
			flags |= MODULE_RUN_ON_COMMIT;
			break;
		default:
			goto bad;
		}

		val = p;
	}

	if (*val == '\0')
		goto bad;

	mi = xmalloc(sizeof(*mi));
	mi->mi_name = xstrdup(module);
	mi->mi_flags = flags;
	mi->mi_prog = prog;
	mi->mi_str = bline;

	dirname = NULL;
	RB_INIT(&(mi->mi_modules));
	RB_INIT(&(mi->mi_ignores));

	for (sp = val; *sp != '\0'; sp = dp) {
		dp = sp;
		while (!isspace((unsigned char)*dp) && *dp != '\0')
			dp++;
		if (*dp != '\0')
			*(dp++) = '\0';

		if (mi->mi_flags & MODULE_ALIAS) {
			if (sp[0] == '!') {
				if (strlen(sp) < 2)
					fatal("invalid ! pattern");
				cvs_file_get((sp + 1), 0,
				    &(mi->mi_ignores), 0);
			} else {
				cvs_file_get(sp, 0,
				    &(mi->mi_modules), 0);
			}
		} else if (sp == val) {
			dirname = sp;
		} else {
			if (sp[0] == '!') {
				if (strlen(sp) < 2)
					fatal("invalid ! pattern");

				sp++;
				(void)xsnprintf(fpath, sizeof(fpath), "%s/%s",
				    dirname, sp);
				cvs_file_get(fpath, 0,
				    &(mi->mi_ignores), 0);
			} else {
				(void)xsnprintf(fpath, sizeof(fpath), "%s/%s",
				    dirname, sp);
				cvs_file_get(fpath, 0,
				    &(mi->mi_modules), 0);
			}
		}
	}

	if (!(mi->mi_flags & MODULE_ALIAS) && RB_EMPTY(&(mi->mi_modules)))
		cvs_file_get(dirname, 0, &(mi->mi_modules), 0);

	TAILQ_INSERT_TAIL(&modules, mi, m_list);
	return (0);

bad:
	if (prog != NULL)
		xfree(prog);
	xfree(bline);
	cvs_log(LP_NOTICE, "malformed line in CVSROOT/modules: %d", lineno);
	return (0);
}

struct module_checkout *
cvs_module_lookup(char *name)
{
	struct module_checkout *mc;
	struct module_info *mi;

	mc = xmalloc(sizeof(*mc));

	TAILQ_FOREACH(mi, &modules, m_list) {
		if (!strcmp(name, mi->mi_name)) {
			mc->mc_modules = mi->mi_modules;
			mc->mc_ignores = mi->mi_ignores;
			mc->mc_canfree = 0;
			mc->mc_name = mi->mi_name;
			mc->mc_flags = mi->mi_flags;
			mc->mc_prog = mi->mi_prog;
			return (mc);
		}
	}

	RB_INIT(&(mc->mc_modules));
	RB_INIT(&(mc->mc_ignores));
	cvs_file_get(name, 0, &(mc->mc_modules), 0);
	mc->mc_canfree = 1;
	mc->mc_name = name;
	mc->mc_flags = MODULE_ALIAS;
	mc->mc_prog = NULL;

	return (mc);
}