[sgt/putty] / mac / macstore.c

/* $Id: macstore.c,v 1.15 2003/02/01 21:44:05 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)
{
    int fd;
    AliasHandle h;
    Boolean changed;
    OSErr err;

    if (handle == NULL) goto out;
    fd = *(int *)handle;
    UseResFile(fd);
    if (ResError() != noErr) goto out;
    h = (AliasHandle)get1namedresource(rAliasType, name);
    if (h == NULL) goto out;
    if ((*h)->userType == 'pTTY' && (*h)->aliasSize == sizeof(**h))
	memset(result, 0, sizeof(*result));
    else {
	err = ResolveAlias(NULL, h, &result->fss, &changed);
	if (err != noErr && err != fnfErr) goto out;
	if ((*h)->userType == 'pTTY') {
	    long dirid;
	    StrFileName fname;

	    /* Tail of record is pascal string contaning leafname */
	    if (FSpGetDirID(&result->fss, &dirid, FALSE) != noErr) goto out;
	    memcpy(fname, (char *)*h + (*h)->aliasSize,
		   GetHandleSize((Handle)h) - (*h)->aliasSize);
	    err = FSMakeFSSpec(result->fss.vRefNum, dirid, fname,
			       &result->fss);
	    if (err != noErr && err != fnfErr) goto out;
	}
    }
    ReleaseResource((Handle)h);
    if (ResError() != noErr) goto out;
    return 1;

  out:
    return 0;
}

void write_setting_filename(void *handle, const char *name, Filename fn)
{
    int fd = *(int *)handle;
    AliasHandle h;
    int id;
    OSErr error;

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

    if (filename_is_null(fn)) {
	/* Generate a special "null" alias */
	h = (AliasHandle)NewHandle(sizeof(**h));
	if (h == NULL)
	    fatalbox("Failed to create fake alias");
	(*h)->userType = 'pTTY';
	(*h)->aliasSize = sizeof(**h);
    } else {
	error = NewAlias(NULL, &fn.fss, &h);
	if (error == fnfErr) {
	    /*
	     * NewAlias can't create an alias for a nonexistent file.
	     * Create an alias for the directory, and record the
	     * filename as well.
	     */
	    FSSpec tmpfss;

	    FSMakeFSSpec(fn.fss.vRefNum, fn.fss.parID, NULL, &tmpfss);
	    error = NewAlias(NULL, &tmpfss, &h);
	    if (error != noErr)
		fatalbox("Failed to create alias");
	    (*h)->userType = 'pTTY';
	    SetHandleSize((Handle)h, (*h)->aliasSize + fn.fss.name[0] + 1);
	    if (MemError() != noErr)
		fatalbox("Failed to create alias");
	    memcpy((char *)*h + (*h)->aliasSize, fn.fss.name,
		   fn.fss.name[0] + 1);
	}
	if (error != noErr)
	    fatalbox("Failed to create alias");
    }
    /* Put the data in a resource. */
    id = Unique1ID(rAliasType);
    if (ResError() != noErr)
	fatalbox("Failed to get ID for resource %s (%d)", name, ResError());
    addresource((Handle)h, rAliasType, id, name);
    if (ResError() != noErr)
	fatalbox("Failed to add resource %s (%d)", name, ResError());
}

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
02cf4001	1	/* $Id: macstore.c,v 1.15 2003/02/01 21:44:05 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	{
02cf4001	363	int fd;
	364	AliasHandle h;
	365	Boolean changed;
	366	OSErr err;
	367
	368	if (handle == NULL) goto out;
	369	fd = (int )handle;
	370	UseResFile(fd);
	371	if (ResError() != noErr) goto out;
	372	h = (AliasHandle)get1namedresource(rAliasType, name);
	373	if (h == NULL) goto out;
	374	if ((h)->userType == 'pTTY' && (h)->aliasSize == sizeof(**h))
	375	memset(result, 0, sizeof(*result));
	376	else {
	377	err = ResolveAlias(NULL, h, &result->fss, &changed);
	378	if (err != noErr && err != fnfErr) goto out;
	379	if ((*h)->userType == 'pTTY') {
	380	long dirid;
	381	StrFileName fname;
	382
	383	/* Tail of record is pascal string contaning leafname */
	384	if (FSpGetDirID(&result->fss, &dirid, FALSE) != noErr) goto out;
	385	memcpy(fname, (char )h + (*h)->aliasSize,
	386	GetHandleSize((Handle)h) - (*h)->aliasSize);
	387	err = FSMakeFSSpec(result->fss.vRefNum, dirid, fname,
	388	&result->fss);
	389	if (err != noErr && err != fnfErr) goto out;
	390	}
	391	}
	392	ReleaseResource((Handle)h);
	393	if (ResError() != noErr) goto out;
	394	return 1;
	395
	396	out:
	397	return 0;
9a30e26b	398	}
9a30e26b	399
02cf4001	400	void write_setting_filename(void handle, const char name, Filename fn)
9a30e26b	401	{
02cf4001	402	int fd = (int )handle;
	403	AliasHandle h;
	404	int id;
	405	OSErr error;
	406
	407	UseResFile(fd);
	408	if (ResError() != noErr)
	409	fatalbox("Failed to open saved session (%d)", ResError());
	410
	411	if (filename_is_null(fn)) {
	412	/* Generate a special "null" alias */
	413	h = (AliasHandle)NewHandle(sizeof(**h));
	414	if (h == NULL)
	415	fatalbox("Failed to create fake alias");
	416	(*h)->userType = 'pTTY';
	417	(h)->aliasSize = sizeof(*h);
	418	} else {
	419	error = NewAlias(NULL, &fn.fss, &h);
	420	if (error == fnfErr) {
	421	/*
	422	* NewAlias can't create an alias for a nonexistent file.
	423	* Create an alias for the directory, and record the
	424	* filename as well.
	425	*/
	426	FSSpec tmpfss;
	427
	428	FSMakeFSSpec(fn.fss.vRefNum, fn.fss.parID, NULL, &tmpfss);
	429	error = NewAlias(NULL, &tmpfss, &h);
	430	if (error != noErr)
	431	fatalbox("Failed to create alias");
	432	(*h)->userType = 'pTTY';
	433	SetHandleSize((Handle)h, (*h)->aliasSize + fn.fss.name[0] + 1);
	434	if (MemError() != noErr)
	435	fatalbox("Failed to create alias");
	436	memcpy((char )h + (*h)->aliasSize, fn.fss.name,
	437	fn.fss.name[0] + 1);
	438	}
	439	if (error != noErr)
	440	fatalbox("Failed to create alias");
	441	}
	442	/* Put the data in a resource. */
	443	id = Unique1ID(rAliasType);
	444	if (ResError() != noErr)
	445	fatalbox("Failed to get ID for resource %s (%d)", name, ResError());
	446	addresource((Handle)h, rAliasType, id, name);
	447	if (ResError() != noErr)
	448	fatalbox("Failed to add resource %s (%d)", name, ResError());
9a30e26b	449	}
9a30e26b	450
d082ac49	451	void close_settings_r(void *handle) {
	452	int fd;
	453
	454	if (handle == NULL) return;
	455	fd = (int )handle;
	456	CloseResFile(fd);
	457	if (ResError() != noErr)
	458	fatalbox("Close of saved session failed (%d)", ResError());
	459	safefree(handle);
	460	}
	461
f5d2d791	462	void del_settings(char const *sessionname) {
d082ac49	463	OSErr error;
	464	FSSpec sessfile;
	465	short sessVRefNum;
	466	long sessDirID;
	467	Str255 psessionname;
	468
	469	error = get_session_dir(kDontCreateFolder, &sessVRefNum, &sessDirID);
	470
	471	c2pstrcpy(psessionname, sessionname);
	472	error = FSMakeFSSpec(sessVRefNum, sessDirID, psessionname, &sessfile);
	473	if (error != noErr) goto out;
	474
	475	error = FSpDelete(&sessfile);
	476	return;
	477	out:
	478	fatalbox("Delete session failed (%d)", error);
	479	}
	480
	481	struct enum_settings_state {
	482	short vRefNum;
	483	long dirID;
	484	int index;
	485	};
	486
	487	void *enum_settings_start(void) {
	488	OSErr error;
	489	struct enum_settings_state *state;
	490
	491	state = safemalloc(sizeof(*state));
	492	error = get_session_dir(kDontCreateFolder, &state->vRefNum, &state->dirID);
	493	if (error != noErr) {
	494	safefree(state);
	495	return NULL;
	496	}
	497	state->index = 1;
	498	return state;
	499	}
	500
	501	char enum_settings_next(void handle, char *buffer, int buflen) {
	502	struct enum_settings_state *e = handle;
	503	CInfoPBRec pb;
	504	OSErr error = noErr;
	505	Str255 name;
	506
	507	if (e == NULL) return NULL;
	508	do {
	509	pb.hFileInfo.ioNamePtr = name;
	510	pb.hFileInfo.ioVRefNum = e->vRefNum;
	511	pb.hFileInfo.ioDirID = e->dirID;
	512	pb.hFileInfo.ioFDirIndex = e->index++;
	513	error = PBGetCatInfoSync(&pb);
	514	if (error != noErr) return NULL;
	515	} while (!((pb.hFileInfo.ioFlAttrib & ioDirMask) == 0 &&
	516	pb.hFileInfo.ioFlFndrInfo.fdCreator == PUTTY_CREATOR &&
	517	pb.hFileInfo.ioFlFndrInfo.fdType == SESS_TYPE &&
	518	name[0] < buflen));
	519
	520	p2cstrcpy(buffer, name);
	521	return buffer;
	522	}
	523
	524	void enum_settings_finish(void *handle) {
	525
	526	safefree(handle);
527	}
528
0c4b7799	529	#define SEED_SIZE 512
	530
	531	void read_random_seed(noise_consumer_t consumer)
	532	{
	533	short puttyVRefNum;
	534	long puttyDirID;
	535	OSErr error;
	536	char buf[SEED_SIZE];
	537	short refnum;
	538	long count = SEED_SIZE;
	539
	540	if (get_putty_dir(kDontCreateFolder, &puttyVRefNum, &puttyDirID) != noErr)
	541	return;
	542	if (HOpenDF(puttyVRefNum, puttyDirID, "\pPuTTY Random Seed", fsRdPerm,
	543	&refnum) != noErr)
	544	return;
	545	error = FSRead(refnum, &count, buf);
	546	if (error != noErr && error != eofErr)
	547	return;
	548	(*consumer)(buf, count);
	549	FSClose(refnum);
	550	}
	551
604379f1	552	/*
	553	* We don't bother with the usual FSpExchangeFiles dance here because
	554	* it doesn't really matter if the old random seed gets lost.
	555	*/
0c4b7799	556	void write_random_seed(void *data, int len)
0c4b7799	557	{
604379f1	558	short puttyVRefNum;
604379f1	559	long puttyDirID;
0c4b7799	560	OSErr error;
604379f1	561	FSSpec dstfile;
0c4b7799	562	short refnum;
	563	long count = len;
	564
	565	if (get_putty_dir(kCreateFolder, &puttyVRefNum, &puttyDirID) != noErr)
	566	return;
	567
	568	error = FSMakeFSSpec(puttyVRefNum, puttyDirID, "\pPuTTY Random Seed",
	569	&dstfile);
1d4cb74b	570	if (error == fnfErr) {
	571	/* Set up standard resources */
	572	FSpCreateResFile(&dstfile, INTERNAL_CREATOR, SEED_TYPE, smRoman);
	573	refnum = FSpOpenResFile(&dstfile, fsWrPerm);
	574	if (ResError() == noErr) {
	575	copy_resource('STR ', -16397);
	576	CloseResFile(refnum);
	577	}
	578	} else if (error != noErr) return;
0c4b7799	579
604379f1	580	if (FSpOpenDF(&dstfile, fsWrPerm, &refnum) != noErr) return;
604379f1	581	FSWrite(refnum, &count, data);
0c4b7799	582	FSClose(refnum);
1d4cb74b	583
604379f1	584	return;
0c4b7799	585	}
d082ac49	586
	587	/*
	588	* Emacs magic:
	589	* Local Variables:
	590	* c-file-style: "simon"
	591	* End:
	592	*/