/* Distributed Checksum Clearinghouse
 *
 * --C-LICENSE--
 * $Revision: 1.5 $
 */

#include "dcc_defs.h"
#ifdef DCC_WIN32
#include <direct.h>
#endif



/* change to the DCC home directory */
u_char					/* 0=failed 1=ok */
dcc_cdhome(DCC_EMSG *emsg, const char *newdir, u_char rdonly)
{
	DCC_PATH tmp;
	u_char result;

	result = 1;
	if (!newdir)
		newdir = DCC_HOMEDIR;

	if (*newdir == '\0') {
		dcc_pemsg(EX_NOINPUT, emsg,
			  "invalid null DCC home directory");
		newdir = DCC_HOMEDIR;
		result = 0;
	}

	if (!dcc_fnm2abs(&tmp, newdir, 0)) {
		dcc_pemsg(EX_NOINPUT, emsg,
			  "bad DCC home directory \"%s\"", newdir);
		result = 0;
	}
#ifdef DCC_WIN32
	if (!SetCurrentDirectory(tmp.c)) {
		dcc_pemsg(EX_NOINPUT, emsg, "SetCurrentDirectory(%s): %s" ,
			  tmp, ERROR_STR());
		return 0;
	}
	if (!getcwd(dcc_homedir, sizeof(dcc_homedir)))
		BUFCPY(dcc_homedir, tmp.c);
	dcc_homedir_len = strlen(dcc_homedir);
#else
	if (0 > chdir(tmp.c)) {
		dcc_pemsg(EX_NOINPUT, emsg, "chdir(%s): %s",
			  tmp.c, ERROR_STR());
		result = 0;
	} else {
		if (tmp.c[0] == '/'
		    || !getcwd(dcc_homedir.c, sizeof(dcc_homedir)))
			BUFCPY(dcc_homedir.c, tmp.c);
		dcc_homedir_len = strlen(dcc_homedir.c);
	}

	if (!rdonly && 0 > access(dcc_homedir.c, W_OK)) {
#ifdef HAVE_EACCESS
		if (errno == EACCES || errno == EPERM) {
			dcc_get_priv();
			if (0 > eaccess(dcc_homedir.c, W_OK)) {
				dcc_pemsg(EX_NOINPUT, emsg, "%s: %s",
					  tmp.c, ERROR_STR());
				result = 0;
			}
			dcc_rel_priv();
		} else {
#endif
			dcc_pemsg(EX_NOINPUT, emsg, "%s: %s",
				  tmp.c, ERROR_STR());
			result = 0;
#ifdef HAVE_EACCESS
		}
#endif
	}
#endif /* !DCC_WIN32 */

	return result;
}