[u/mdw/putty] / mac / macstore.c

/* $Id: macstore.c,v 1.14 2003/02/01 15:44:08 ben Exp $ */

/*
 * macstore.c: Macintosh-specific impementation of the interface
 * defined in storage.h
 */

#include <MacTypes.h>
#include <Folders.h>
#include <Memory.h>
#include <Resources.h>
#include <TextUtils.h>

#include <stdio.h>
#include <string.h>

#include "putty.h"
#include "storage.h"
#include "mac.h"
#include "macresid.h"


OSErr FSpGetDirID(FSSpec *f, long *idp, Boolean makeit);

/*
 * We store each session as a file in the "PuTTY" sub-directory of the
 * preferences folder.  Each (key,value) pair is stored as a resource.
 */

OSErr get_putty_dir(Boolean makeit, short *pVRefNum, long *pDirID)
{
    OSErr error = noErr;
    short prefVRefNum;
    FSSpec puttydir;
    long prefDirID, puttyDirID;

    error = FindFolder(kOnSystemDisk, kPreferencesFolderType, makeit,
		       &prefVRefNum, &prefDirID);
    if (error != noErr) goto out;

    error = FSMakeFSSpec(prefVRefNum, prefDirID, "\pPuTTY", &puttydir);
    if (error != noErr && error != fnfErr) goto out;
    error = FSpGetDirID(&puttydir, &puttyDirID, makeit);
    if (error != noErr) goto out;

    *pVRefNum = prefVRefNum;
    *pDirID = puttyDirID;

  out:
    return error;
}

OSErr get_session_dir(Boolean makeit, short *pVRefNum, long *pDirID) {
    OSErr error = noErr;
    short puttyVRefNum;
    FSSpec sessdir;
    long puttyDirID, sessDirID;

    error = get_putty_dir(makeit, &puttyVRefNum, &puttyDirID);
    if (error != noErr) goto out;
    error = FSMakeFSSpec(puttyVRefNum, puttyDirID, "\pSaved Sessions",
			 &sessdir);
    if (error != noErr && error != fnfErr) goto out;
    error = FSpGetDirID(&sessdir, &sessDirID, makeit);
    if (error != noErr) goto out;

    *pVRefNum = puttyVRefNum;
    *pDirID = sessDirID;

  out:
    return error;
}

OSErr FSpGetDirID(FSSpec *f, long *idp, Boolean makeit) {
    CInfoPBRec pb;
    OSErr error = noErr;

    pb.dirInfo.ioNamePtr = f->name;
    pb.dirInfo.ioVRefNum = f->vRefNum;
    pb.dirInfo.ioDrDirID = f->parID;
    pb.dirInfo.ioFDirIndex = 0;
    error = PBGetCatInfoSync(&pb);
    if (error == fnfErr && makeit)
	return FSpDirCreate(f, smSystemScript, idp);
    if (error != noErr) goto out;
    if ((pb.dirInfo.ioFlAttrib & ioDirMask) == 0) {
	error = dirNFErr;
	goto out;
    }
    *idp = pb.dirInfo.ioDrDirID;

  out:
    return error;
}

/* Copy a resource into the current resource file */
static OSErr copy_resource(ResType restype, short resid)
{
    Handle h;
    Str255 resname;

    h = GetResource(restype, resid);
    if (h != NULL) {
	GetResInfo(h, &resid, &restype, resname);
	DetachResource(h);
	AddResource(h, restype, resid, resname);
	if (ResError() == noErr)
	    WriteResource(h);
    }
    return ResError();
}

struct write_settings {
    int fd;
    FSSpec tmpfile;
    FSSpec dstfile;
};

void *open_settings_w(char const *sessionname) {
    short sessVRefNum;
    long sessDirID;
    OSErr error;
    Str255 psessionname;
    FSSpec dstfile;
    
    error = get_session_dir(kCreateFolder, &sessVRefNum, &sessDirID);
    if (error != noErr) return NULL;

    c2pstrcpy(psessionname, sessionname);
    error = FSMakeFSSpec(sessVRefNum, sessDirID, psessionname, &dstfile);
    if (error == fnfErr) {
	FSpCreateResFile(&dstfile, PUTTY_CREATOR, SESS_TYPE, smSystemScript);
	if ((error = ResError()) != noErr) return NULL;
    } else if (error != noErr) return NULL;

    return open_settings_w_fsp(&dstfile);
}

/*
 * NB: Destination file must exist.
 */
void *open_settings_w_fsp(FSSpec *dstfile)
{
    short tmpVRefNum;
    long tmpDirID;
    struct write_settings *ws;
    OSErr error;
    Str255 tmpname;

    ws = smalloc(sizeof *ws);
    ws->dstfile = *dstfile;

    /* Create a temporary file to save to first. */
    error = FindFolder(ws->dstfile.vRefNum, kTemporaryFolderType,
		       kCreateFolder, &tmpVRefNum, &tmpDirID);
    if (error != noErr) goto out;
    c2pstrcpy(tmpname, tmpnam(NULL));
    error = FSMakeFSSpec(tmpVRefNum, tmpDirID, tmpname, &ws->tmpfile);
    if (error != noErr && error != fnfErr) goto out;
    if (error == noErr) {
	error = FSpDelete(&ws->tmpfile);
	if (error != noErr) goto out;
    }
    FSpCreateResFile(&ws->tmpfile, PUTTY_CREATOR, SESS_TYPE, smSystemScript);
    if ((error = ResError()) != noErr) goto out;

    ws->fd = FSpOpenResFile(&ws->tmpfile, fsWrPerm);
    if (ws->fd == -1) {error = ResError(); goto out;}

    /* Set up standard resources.  Doesn't matter if these fail. */
    copy_resource('STR ', -16396);
    copy_resource('TMPL', TMPL_Int);

    return ws;

  out:
    safefree(ws);
    fatalbox("Failed to open session for write (%d)", error);
}

void write_setting_s(void *handle, char const *key, char const *value) {
    int fd = *(int *)handle;
    Handle h;
    int id;
    OSErr error;

    UseResFile(fd);
    if (ResError() != noErr)
        fatalbox("Failed to open saved session (%d)", ResError());

    error = PtrToHand(value, &h, strlen(value));
    if (error != noErr)
	fatalbox("Failed to allocate memory");
    /* Put the data in a resource. */
    id = Unique1ID(FOUR_CHAR_CODE('TEXT'));
    if (ResError() != noErr)
	fatalbox("Failed to get ID for resource %s (%d)", key, ResError());
    addresource(h, FOUR_CHAR_CODE('TEXT'), id, key);
    if (ResError() != noErr)
	fatalbox("Failed to add resource %s (%d)", key, ResError());
}

void write_setting_i(void *handle, char const *key, int value) {
    int fd = *(int *)handle;
    Handle h;
    int id;
    OSErr error;

    UseResFile(fd);
    if (ResError() != noErr)
        fatalbox("Failed to open saved session (%d)", ResError());

    /* XXX assume all systems have the same "int" format */
    error = PtrToHand(&value, &h, sizeof(int));
    if (error != noErr)
	fatalbox("Failed to allocate memory (%d)", error);

    /* Put the data in a resource. */
    id = Unique1ID(FOUR_CHAR_CODE('Int '));
    if (ResError() != noErr)
	fatalbox("Failed to get ID for resource %s (%d)", key, ResError());
    addresource(h, FOUR_CHAR_CODE('Int '), id, key);
    if (ResError() != noErr)
	fatalbox("Failed to add resource %s (%d)", key, ResError());
}

void close_settings_w(void *handle) {
    struct write_settings *ws = handle;
    OSErr error;

    CloseResFile(ws->fd);
    if ((error = ResError()) != noErr)
	goto out;
    error = FSpExchangeFiles(&ws->tmpfile, &ws->dstfile);
    if (error != noErr) goto out;
    error = FSpDelete(&ws->tmpfile);
    if (error != noErr) goto out;
    return;

  out:
    fatalbox("Close of saved session failed (%d)", error);
    safefree(handle);
}

void *open_settings_r(char const *sessionname)
{
    short sessVRefNum;
    long sessDirID;
    FSSpec sessfile;
    OSErr error;
    Str255 psessionname;

    error = get_session_dir(kDontCreateFolder, &sessVRefNum, &sessDirID);

    c2pstrcpy(psessionname, sessionname);
    error = FSMakeFSSpec(sessVRefNum, sessDirID, psessionname, &sessfile);
    if (error != noErr) goto out;
    return open_settings_r_fsp(&sessfile);

  out:
    return NULL;
}

void *open_settings_r_fsp(FSSpec *sessfile)
{
    OSErr error;
    int fd;
    int *handle;

    fd = FSpOpenResFile(sessfile, fsRdPerm);
    if (fd == 0) {error = ResError(); goto out;}

    handle = safemalloc(sizeof *handle);
    *handle = fd;
    return handle;

  out:
    return NULL;
}

char *read_setting_s(void *handle, char const *key, char *buffer, int buflen) {
    int fd;
    Handle h;
    size_t len;

    if (handle == NULL) goto out;
    fd = *(int *)handle;
    UseResFile(fd);
    if (ResError() != noErr) goto out;
    h = get1namedresource(FOUR_CHAR_CODE('TEXT'), key);
    if (h == NULL) goto out;

    len = GetHandleSize(h);
    if (len + 1 > buflen) goto out;
    memcpy(buffer, *h, len);
    buffer[len] = '\0';

    ReleaseResource(h);
    if (ResError() != noErr) goto out;
    return buffer;

  out:
    return NULL;
}

int read_setting_i(void *handle, char const *key, int defvalue) {
    int fd;
    Handle h;
    int value;

    if (handle == NULL) goto out;
    fd = *(int *)handle;
    UseResFile(fd);
    if (ResError() != noErr) goto out;
    h = get1namedresource(FOUR_CHAR_CODE('Int '), key);
    if (h == NULL) goto out;
    value = *(int *)*h;
    ReleaseResource(h);
    if (ResError() != noErr) goto out;
    return value;

  out:
    return defvalue;
}

int read_setting_fontspec(void *handle, const char *name, FontSpec *result)
{
    char *settingname;
    FontSpec ret;
    char tmp[256];

    if (!read_setting_s(handle, name, tmp, sizeof(tmp)))
	return 0;
    c2pstrcpy(ret.name, tmp);
    settingname = dupcat(name, "Face", NULL);
    ret.face = read_setting_i(handle, settingname, 0);
    sfree(settingname);
    settingname = dupcat(name, "Height", NULL);
    ret.size = read_setting_i(handle, settingname, 0);
    sfree(settingname);
    if (ret.size == 0) return 0;
    *result = ret;
    return 1;
}

void write_setting_fontspec(void *handle, const char *name, FontSpec font)
{
    char *settingname;
    char tmp[256];

    p2cstrcpy(tmp, font.name);
    write_setting_s(handle, name, tmp);
    settingname = dupcat(name, "Face", NULL);
    write_setting_i(handle, settingname, font.face);
    sfree(settingname);
    settingname = dupcat(name, "Size", NULL);
    write_setting_i(handle, settingname, font.size);
    sfree(settingname);
}

int read_setting_filename(void *handle, const char *name, Filename *result)
{
    return !!read_setting_s(handle, name, result->path, sizeof(result->path));
}

void write_setting_filename(void *handle, const char *name, Filename result)
{
    write_setting_s(handle, name, result.path);
}

void close_settings_r(void *handle) {
    int fd;

    if (handle == NULL) return;
    fd = *(int *)handle;
    CloseResFile(fd);
    if (ResError() != noErr)
	fatalbox("Close of saved session failed (%d)", ResError());
    safefree(handle);
}

void del_settings(char const *sessionname) {
    OSErr error;
    FSSpec sessfile;
    short sessVRefNum;
    long sessDirID;
    Str255 psessionname;

    error = get_session_dir(kDontCreateFolder, &sessVRefNum, &sessDirID);

    c2pstrcpy(psessionname, sessionname);
    error = FSMakeFSSpec(sessVRefNum, sessDirID, psessionname, &sessfile);
    if (error != noErr) goto out;

    error = FSpDelete(&sessfile);
    return;
  out:
    fatalbox("Delete session failed (%d)", error);
}

struct enum_settings_state {
    short vRefNum;
    long dirID;
    int index;
};

void *enum_settings_start(void) {
    OSErr error;
    struct enum_settings_state *state;

    state = safemalloc(sizeof(*state));
    error = get_session_dir(kDontCreateFolder, &state->vRefNum, &state->dirID);
    if (error != noErr) {
	safefree(state);
	return NULL;
    }
    state->index = 1;
    return state;
}

char *enum_settings_next(void *handle, char *buffer, int buflen) {
    struct enum_settings_state *e = handle;
    CInfoPBRec pb;
    OSErr error = noErr;
    Str255 name;

    if (e == NULL) return NULL;
    do {
	pb.hFileInfo.ioNamePtr = name;
	pb.hFileInfo.ioVRefNum = e->vRefNum;
	pb.hFileInfo.ioDirID = e->dirID;
	pb.hFileInfo.ioFDirIndex = e->index++;
	error = PBGetCatInfoSync(&pb);
	if (error != noErr) return NULL;
    } while (!((pb.hFileInfo.ioFlAttrib & ioDirMask) == 0 &&
	       pb.hFileInfo.ioFlFndrInfo.fdCreator == PUTTY_CREATOR &&
	       pb.hFileInfo.ioFlFndrInfo.fdType == SESS_TYPE &&
	       name[0] < buflen));

    p2cstrcpy(buffer, name);
    return buffer;
}

void enum_settings_finish(void *handle) {

    safefree(handle);
}

#define SEED_SIZE 512

void read_random_seed(noise_consumer_t consumer)
{
    short puttyVRefNum;
    long puttyDirID;
    OSErr error;
    char buf[SEED_SIZE];
    short refnum;
    long count = SEED_SIZE;

    if (get_putty_dir(kDontCreateFolder, &puttyVRefNum, &puttyDirID) != noErr)
	return;
    if (HOpenDF(puttyVRefNum, puttyDirID, "\pPuTTY Random Seed", fsRdPerm,
		&refnum) != noErr)
	return;
    error = FSRead(refnum, &count, buf);
    if (error != noErr && error != eofErr)
	return;
    (*consumer)(buf, count);
    FSClose(refnum);
}

/*
 * We don't bother with the usual FSpExchangeFiles dance here because
 * it doesn't really matter if the old random seed gets lost.
 */
void write_random_seed(void *data, int len)
{
    short puttyVRefNum;
    long puttyDirID;
    OSErr error;
    FSSpec dstfile;
    short refnum;
    long count = len;

    if (get_putty_dir(kCreateFolder, &puttyVRefNum, &puttyDirID) != noErr)
	return;

    error = FSMakeFSSpec(puttyVRefNum, puttyDirID, "\pPuTTY Random Seed",
			 &dstfile);
    if (error == fnfErr) {
	/* Set up standard resources */
	FSpCreateResFile(&dstfile, INTERNAL_CREATOR, SEED_TYPE, smRoman);
	refnum = FSpOpenResFile(&dstfile, fsWrPerm);
	if (ResError() == noErr) {
	    copy_resource('STR ', -16397);
	    CloseResFile(refnum);
	}
    } else if (error != noErr) return;

    if (FSpOpenDF(&dstfile, fsWrPerm, &refnum) != noErr) return;
    FSWrite(refnum, &count, data);
    FSClose(refnum);

    return;
}

/*
 * Emacs magic:
 * Local Variables:
 * c-file-style: "simon"
 * End:
 */
Commit	Line	Data
e3c5b245	1	/* $Id: macstore.c,v 1.14 2003/02/01 15:44:08 ben Exp $ */
d082ac49	2
	3	/*
	4	* macstore.c: Macintosh-specific impementation of the interface
	5	* defined in storage.h
	6	*/
	7
	8	#include <MacTypes.h>
	9	#include <Folders.h>
	10	#include <Memory.h>
	11	#include <Resources.h>
	12	#include <TextUtils.h>
	13
b537dd42	14	#include <stdio.h>
d082ac49	15	#include <string.h>
	16
	17	#include "putty.h"
	18	#include "storage.h"
ce283213	19	#include "mac.h"
1d4cb74b	20	#include "macresid.h"
d082ac49	21
d082ac49	22
d082ac49	23	OSErr FSpGetDirID(FSSpec f, long idp, Boolean makeit);
	24
	25	/*
	26	* We store each session as a file in the "PuTTY" sub-directory of the
	27	* preferences folder. Each (key,value) pair is stored as a resource.
	28	*/
	29
0c4b7799	30	OSErr get_putty_dir(Boolean makeit, short pVRefNum, long pDirID)
0c4b7799	31	{
d082ac49	32	OSErr error = noErr;
d082ac49	33	short prefVRefNum;
0c4b7799	34	FSSpec puttydir;
0c4b7799	35	long prefDirID, puttyDirID;
d082ac49	36
	37	error = FindFolder(kOnSystemDisk, kPreferencesFolderType, makeit,
	38	&prefVRefNum, &prefDirID);
	39	if (error != noErr) goto out;
	40
	41	error = FSMakeFSSpec(prefVRefNum, prefDirID, "\pPuTTY", &puttydir);
	42	if (error != noErr && error != fnfErr) goto out;
	43	error = FSpGetDirID(&puttydir, &puttyDirID, makeit);
	44	if (error != noErr) goto out;
	45
0c4b7799	46	*pVRefNum = prefVRefNum;
	47	*pDirID = puttyDirID;
	48
	49	out:
	50	return error;
	51	}
	52
	53	OSErr get_session_dir(Boolean makeit, short pVRefNum, long pDirID) {
	54	OSErr error = noErr;
	55	short puttyVRefNum;
	56	FSSpec sessdir;
	57	long puttyDirID, sessDirID;
	58
	59	error = get_putty_dir(makeit, &puttyVRefNum, &puttyDirID);
	60	if (error != noErr) goto out;
	61	error = FSMakeFSSpec(puttyVRefNum, puttyDirID, "\pSaved Sessions",
d082ac49	62	&sessdir);
	63	if (error != noErr && error != fnfErr) goto out;
	64	error = FSpGetDirID(&sessdir, &sessDirID, makeit);
	65	if (error != noErr) goto out;
	66
0c4b7799	67	*pVRefNum = puttyVRefNum;
d082ac49	68	*pDirID = sessDirID;
	69
	70	out:
	71	return error;
	72	}
	73
	74	OSErr FSpGetDirID(FSSpec f, long idp, Boolean makeit) {
	75	CInfoPBRec pb;
	76	OSErr error = noErr;
	77
	78	pb.dirInfo.ioNamePtr = f->name;
	79	pb.dirInfo.ioVRefNum = f->vRefNum;
	80	pb.dirInfo.ioDrDirID = f->parID;
	81	pb.dirInfo.ioFDirIndex = 0;
	82	error = PBGetCatInfoSync(&pb);
	83	if (error == fnfErr && makeit)
	84	return FSpDirCreate(f, smSystemScript, idp);
	85	if (error != noErr) goto out;
	86	if ((pb.dirInfo.ioFlAttrib & ioDirMask) == 0) {
	87	error = dirNFErr;
	88	goto out;
	89	}
	90	*idp = pb.dirInfo.ioDrDirID;
	91
	92	out:
	93	return error;
	94	}
	95
1d4cb74b	96	/* Copy a resource into the current resource file */
	97	static OSErr copy_resource(ResType restype, short resid)
	98	{
	99	Handle h;
	100	Str255 resname;
	101
1d4cb74b	102	h = GetResource(restype, resid);
	103	if (h != NULL) {
	104	GetResInfo(h, &resid, &restype, resname);
	105	DetachResource(h);
	106	AddResource(h, restype, resid, resname);
	107	if (ResError() == noErr)
	108	WriteResource(h);
	109	}
1d4cb74b	110	return ResError();
	111	}
	112
d082ac49	113	struct write_settings {
	114	int fd;
	115	FSSpec tmpfile;
	116	FSSpec dstfile;
	117	};
	118
f5d2d791	119	void open_settings_w(char const sessionname) {
b537dd42	120	short sessVRefNum;
b537dd42	121	long sessDirID;
d082ac49	122	OSErr error;
d082ac49	123	Str255 psessionname;
b537dd42	124	FSSpec dstfile;
d082ac49	125
d082ac49	126	error = get_session_dir(kCreateFolder, &sessVRefNum, &sessDirID);
b537dd42	127	if (error != noErr) return NULL;
d082ac49	128
d082ac49	129	c2pstrcpy(psessionname, sessionname);
b537dd42	130	error = FSMakeFSSpec(sessVRefNum, sessDirID, psessionname, &dstfile);
d082ac49	131	if (error == fnfErr) {
b537dd42	132	FSpCreateResFile(&dstfile, PUTTY_CREATOR, SESS_TYPE, smSystemScript);
	133	if ((error = ResError()) != noErr) return NULL;
	134	} else if (error != noErr) return NULL;
	135
	136	return open_settings_w_fsp(&dstfile);
	137	}
	138
	139	/*
	140	* NB: Destination file must exist.
	141	*/
	142	void open_settings_w_fsp(FSSpec dstfile)
	143	{
	144	short tmpVRefNum;
	145	long tmpDirID;
	146	struct write_settings *ws;
	147	OSErr error;
	148	Str255 tmpname;
	149
	150	ws = smalloc(sizeof *ws);
	151	ws->dstfile = *dstfile;
d082ac49	152
d082ac49	153	/* Create a temporary file to save to first. */
b537dd42	154	error = FindFolder(ws->dstfile.vRefNum, kTemporaryFolderType,
b537dd42	155	kCreateFolder, &tmpVRefNum, &tmpDirID);
d082ac49	156	if (error != noErr) goto out;
b537dd42	157	c2pstrcpy(tmpname, tmpnam(NULL));
b537dd42	158	error = FSMakeFSSpec(tmpVRefNum, tmpDirID, tmpname, &ws->tmpfile);
d082ac49	159	if (error != noErr && error != fnfErr) goto out;
	160	if (error == noErr) {
	161	error = FSpDelete(&ws->tmpfile);
	162	if (error != noErr) goto out;
	163	}
	164	FSpCreateResFile(&ws->tmpfile, PUTTY_CREATOR, SESS_TYPE, smSystemScript);
	165	if ((error = ResError()) != noErr) goto out;
	166
	167	ws->fd = FSpOpenResFile(&ws->tmpfile, fsWrPerm);
	168	if (ws->fd == -1) {error = ResError(); goto out;}
	169
1d4cb74b	170	/* Set up standard resources. Doesn't matter if these fail. */
	171	copy_resource('STR ', -16396);
	172	copy_resource('TMPL', TMPL_Int);
	173
d082ac49	174	return ws;
	175
	176	out:
	177	safefree(ws);
	178	fatalbox("Failed to open session for write (%d)", error);
	179	}
	180
f5d2d791	181	void write_setting_s(void handle, char const key, char const *value) {
d082ac49	182	int fd = (int )handle;
	183	Handle h;
	184	int id;
803efcdf	185	OSErr error;
d082ac49	186
	187	UseResFile(fd);
	188	if (ResError() != noErr)
	189	fatalbox("Failed to open saved session (%d)", ResError());
	190
	191	error = PtrToHand(value, &h, strlen(value));
	192	if (error != noErr)
	193	fatalbox("Failed to allocate memory");
	194	/* Put the data in a resource. */
	195	id = Unique1ID(FOUR_CHAR_CODE('TEXT'));
	196	if (ResError() != noErr)
	197	fatalbox("Failed to get ID for resource %s (%d)", key, ResError());
	198	addresource(h, FOUR_CHAR_CODE('TEXT'), id, key);
	199	if (ResError() != noErr)
	200	fatalbox("Failed to add resource %s (%d)", key, ResError());
	201	}
	202
f5d2d791	203	void write_setting_i(void handle, char const key, int value) {
d082ac49	204	int fd = (int )handle;
	205	Handle h;
	206	int id;
	207	OSErr error;
	208
	209	UseResFile(fd);
	210	if (ResError() != noErr)
	211	fatalbox("Failed to open saved session (%d)", ResError());
	212
	213	/* XXX assume all systems have the same "int" format */
	214	error = PtrToHand(&value, &h, sizeof(int));
	215	if (error != noErr)
	216	fatalbox("Failed to allocate memory (%d)", error);
	217
	218	/* Put the data in a resource. */
	219	id = Unique1ID(FOUR_CHAR_CODE('Int '));
	220	if (ResError() != noErr)
	221	fatalbox("Failed to get ID for resource %s (%d)", key, ResError());
	222	addresource(h, FOUR_CHAR_CODE('Int '), id, key);
	223	if (ResError() != noErr)
	224	fatalbox("Failed to add resource %s (%d)", key, ResError());
	225	}
	226
	227	void close_settings_w(void *handle) {
	228	struct write_settings *ws = handle;
	229	OSErr error;
	230
	231	CloseResFile(ws->fd);
	232	if ((error = ResError()) != noErr)
	233	goto out;
	234	error = FSpExchangeFiles(&ws->tmpfile, &ws->dstfile);
	235	if (error != noErr) goto out;
	236	error = FSpDelete(&ws->tmpfile);
	237	if (error != noErr) goto out;
	238	return;
	239
	240	out:
	241	fatalbox("Close of saved session failed (%d)", error);
	242	safefree(handle);
	243	}
	244
f5d2d791	245	void open_settings_r(char const sessionname)
ce283213	246	{
d082ac49	247	short sessVRefNum;
	248	long sessDirID;
	249	FSSpec sessfile;
	250	OSErr error;
	251	Str255 psessionname;
d082ac49	252
	253	error = get_session_dir(kDontCreateFolder, &sessVRefNum, &sessDirID);
	254
	255	c2pstrcpy(psessionname, sessionname);
	256	error = FSMakeFSSpec(sessVRefNum, sessDirID, psessionname, &sessfile);
	257	if (error != noErr) goto out;
ce283213	258	return open_settings_r_fsp(&sessfile);
	259
	260	out:
	261	return NULL;
	262	}
	263
	264	void open_settings_r_fsp(FSSpec sessfile)
	265	{
	266	OSErr error;
	267	int fd;
	268	int *handle;
	269
	270	fd = FSpOpenResFile(sessfile, fsRdPerm);
d082ac49	271	if (fd == 0) {error = ResError(); goto out;}
	272
	273	handle = safemalloc(sizeof *handle);
	274	*handle = fd;
	275	return handle;
	276
	277	out:
	278	return NULL;
	279	}
	280
f5d2d791	281	char read_setting_s(void handle, char const key, char buffer, int buflen) {
d082ac49	282	int fd;
d082ac49	283	Handle h;
086efcde	284	size_t len;
d082ac49	285
	286	if (handle == NULL) goto out;
	287	fd = (int )handle;
	288	UseResFile(fd);
	289	if (ResError() != noErr) goto out;
	290	h = get1namedresource(FOUR_CHAR_CODE('TEXT'), key);
	291	if (h == NULL) goto out;
	292
086efcde	293	len = GetHandleSize(h);
	294	if (len + 1 > buflen) goto out;
	295	memcpy(buffer, *h, len);
	296	buffer[len] = '\0';
	297
d082ac49	298	ReleaseResource(h);
	299	if (ResError() != noErr) goto out;
	300	return buffer;
	301
	302	out:
	303	return NULL;
	304	}
	305
f5d2d791	306	int read_setting_i(void handle, char const key, int defvalue) {
d082ac49	307	int fd;
d082ac49	308	Handle h;
d082ac49	309	int value;
	310
	311	if (handle == NULL) goto out;
	312	fd = (int )handle;
	313	UseResFile(fd);
	314	if (ResError() != noErr) goto out;
	315	h = get1namedresource(FOUR_CHAR_CODE('Int '), key);
	316	if (h == NULL) goto out;
	317	value = (int )*h;
	318	ReleaseResource(h);
	319	if (ResError() != noErr) goto out;
	320	return value;
	321
	322	out:
	323	return defvalue;
	324	}
	325
9a30e26b	326	int read_setting_fontspec(void handle, const char name, FontSpec *result)
	327	{
	328	char *settingname;
	329	FontSpec ret;
e3c5b245	330	char tmp[256];
9a30e26b	331
e3c5b245	332	if (!read_setting_s(handle, name, tmp, sizeof(tmp)))
9a30e26b	333	return 0;
e3c5b245	334	c2pstrcpy(ret.name, tmp);
	335	settingname = dupcat(name, "Face", NULL);
	336	ret.face = read_setting_i(handle, settingname, 0);
9a30e26b	337	sfree(settingname);
9a30e26b	338	settingname = dupcat(name, "Height", NULL);
e3c5b245	339	ret.size = read_setting_i(handle, settingname, 0);
9a30e26b	340	sfree(settingname);
e3c5b245	341	if (ret.size == 0) return 0;
9a30e26b	342	*result = ret;
	343	return 1;
	344	}
	345
	346	void write_setting_fontspec(void handle, const char name, FontSpec font)
	347	{
	348	char *settingname;
e3c5b245	349	char tmp[256];
9a30e26b	350
e3c5b245	351	p2cstrcpy(tmp, font.name);
	352	write_setting_s(handle, name, tmp);
	353	settingname = dupcat(name, "Face", NULL);
	354	write_setting_i(handle, settingname, font.face);
9a30e26b	355	sfree(settingname);
e3c5b245	356	settingname = dupcat(name, "Size", NULL);
e3c5b245	357	write_setting_i(handle, settingname, font.size);
9a30e26b	358	sfree(settingname);
	359	}
	360
	361	int read_setting_filename(void handle, const char name, Filename *result)
	362	{
	363	return !!read_setting_s(handle, name, result->path, sizeof(result->path));
	364	}
	365
	366	void write_setting_filename(void handle, const char name, Filename result)
	367	{
	368	write_setting_s(handle, name, result.path);
	369	}
	370
d082ac49	371	void close_settings_r(void *handle) {
	372	int fd;
	373
	374	if (handle == NULL) return;
	375	fd = (int )handle;
	376	CloseResFile(fd);
	377	if (ResError() != noErr)
	378	fatalbox("Close of saved session failed (%d)", ResError());
	379	safefree(handle);
	380	}
	381
f5d2d791	382	void del_settings(char const *sessionname) {
d082ac49	383	OSErr error;
	384	FSSpec sessfile;
	385	short sessVRefNum;
	386	long sessDirID;
	387	Str255 psessionname;
	388
	389	error = get_session_dir(kDontCreateFolder, &sessVRefNum, &sessDirID);
	390
	391	c2pstrcpy(psessionname, sessionname);
	392	error = FSMakeFSSpec(sessVRefNum, sessDirID, psessionname, &sessfile);
	393	if (error != noErr) goto out;
	394
	395	error = FSpDelete(&sessfile);
	396	return;
	397	out:
	398	fatalbox("Delete session failed (%d)", error);
	399	}
	400
	401	struct enum_settings_state {
	402	short vRefNum;
	403	long dirID;
	404	int index;
	405	};
	406
	407	void *enum_settings_start(void) {
	408	OSErr error;
	409	struct enum_settings_state *state;
	410
	411	state = safemalloc(sizeof(*state));
	412	error = get_session_dir(kDontCreateFolder, &state->vRefNum, &state->dirID);
	413	if (error != noErr) {
	414	safefree(state);
	415	return NULL;
	416	}
	417	state->index = 1;
	418	return state;
	419	}
	420
	421	char enum_settings_next(void handle, char *buffer, int buflen) {
	422	struct enum_settings_state *e = handle;
	423	CInfoPBRec pb;
	424	OSErr error = noErr;
	425	Str255 name;
	426
	427	if (e == NULL) return NULL;
	428	do {
	429	pb.hFileInfo.ioNamePtr = name;
	430	pb.hFileInfo.ioVRefNum = e->vRefNum;
	431	pb.hFileInfo.ioDirID = e->dirID;
	432	pb.hFileInfo.ioFDirIndex = e->index++;
	433	error = PBGetCatInfoSync(&pb);
	434	if (error != noErr) return NULL;
	435	} while (!((pb.hFileInfo.ioFlAttrib & ioDirMask) == 0 &&
	436	pb.hFileInfo.ioFlFndrInfo.fdCreator == PUTTY_CREATOR &&
	437	pb.hFileInfo.ioFlFndrInfo.fdType == SESS_TYPE &&
	438	name[0] < buflen));
	439
	440	p2cstrcpy(buffer, name);
	441	return buffer;
	442	}
	443
	444	void enum_settings_finish(void *handle) {
	445
	446	safefree(handle);
447	}
448
0c4b7799	449	#define SEED_SIZE 512
	450
	451	void read_random_seed(noise_consumer_t consumer)
	452	{
	453	short puttyVRefNum;
	454	long puttyDirID;
	455	OSErr error;
	456	char buf[SEED_SIZE];
	457	short refnum;
	458	long count = SEED_SIZE;
	459
	460	if (get_putty_dir(kDontCreateFolder, &puttyVRefNum, &puttyDirID) != noErr)
	461	return;
	462	if (HOpenDF(puttyVRefNum, puttyDirID, "\pPuTTY Random Seed", fsRdPerm,
	463	&refnum) != noErr)
	464	return;
	465	error = FSRead(refnum, &count, buf);
	466	if (error != noErr && error != eofErr)
	467	return;
	468	(*consumer)(buf, count);
	469	FSClose(refnum);
	470	}
	471
604379f1	472	/*
	473	* We don't bother with the usual FSpExchangeFiles dance here because
	474	* it doesn't really matter if the old random seed gets lost.
	475	*/
0c4b7799	476	void write_random_seed(void *data, int len)
0c4b7799	477	{
604379f1	478	short puttyVRefNum;
604379f1	479	long puttyDirID;
0c4b7799	480	OSErr error;
604379f1	481	FSSpec dstfile;
0c4b7799	482	short refnum;
	483	long count = len;
	484
	485	if (get_putty_dir(kCreateFolder, &puttyVRefNum, &puttyDirID) != noErr)
	486	return;
	487
	488	error = FSMakeFSSpec(puttyVRefNum, puttyDirID, "\pPuTTY Random Seed",
	489	&dstfile);
1d4cb74b	490	if (error == fnfErr) {
	491	/* Set up standard resources */
	492	FSpCreateResFile(&dstfile, INTERNAL_CREATOR, SEED_TYPE, smRoman);
	493	refnum = FSpOpenResFile(&dstfile, fsWrPerm);
	494	if (ResError() == noErr) {
	495	copy_resource('STR ', -16397);
	496	CloseResFile(refnum);
	497	}
	498	} else if (error != noErr) return;
0c4b7799	499
604379f1	500	if (FSpOpenDF(&dstfile, fsWrPerm, &refnum) != noErr) return;
604379f1	501	FSWrite(refnum, &count, data);
0c4b7799	502	FSClose(refnum);
1d4cb74b	503
604379f1	504	return;
0c4b7799	505	}
d082ac49	506
	507	/*
	508	* Emacs magic:
	509	* Local Variables:
	510	* c-file-style: "simon"
	511	* End:
	512	*/