/*
* PUBLIC: int f_print __P((SCR *, OPTION *, char *, u_long *));
*/
int
f_print(
SCR *sp,
OPTION *op,
char *str,
u_long *valp)
{
int offset = op - sp->opts;
/* Preset the value, needed for reinitialization of lookup table. */
if (offset == O_OCTAL) {
if (*valp)
O_SET(sp, offset);
else
O_CLR(sp, offset);
} else if (o_set(sp, offset, OS_STRDUP, str, 0))
return(1);
/* Reinitialize the key fast lookup table. */
v_key_ilookup(sp);
/* Reformat the screen. */
F_SET(sp, SC_SCR_REFORMAT);
return (0);
}
/*
* Return Msg* if dlr entry found in DB, otherwise NULL.
* NOTE: If typ is end status (e.g. DELIVERED) then dlr entry
* will be removed from DB.
*/
Msg *dlr_find(const Octstr *smsc, const Octstr *ts, const Octstr *dst, int typ)
{
Msg *msg = NULL;
struct dlr_entry *dlr = NULL;
if(octstr_len(smsc) == 0) {
warning(0, "DLR[%s]: Can't find a dlr without smsc-id", dlr_type());
return NULL;
}
/* check if we have handler registered */
if (handles == NULL || handles->dlr_get == NULL)
return NULL;
debug("dlr.dlr", 0, "DLR[%s]: Looking for DLR smsc=%s, ts=%s, dst=%s, type=%d",
dlr_type(), octstr_get_cstr(smsc), octstr_get_cstr(ts), octstr_get_cstr(dst), typ);
dlr = handles->dlr_get(smsc, ts, dst);
if (dlr == NULL) {
warning(0, "DLR[%s]: DLR from SMSC<%s> for DST<%s> not found.",
dlr_type(), octstr_get_cstr(smsc), octstr_get_cstr(dst));
return NULL;
}
#define O_SET(x, val) if (octstr_len(val) > 0) { x = val; val = NULL; }
if ((typ & dlr->mask) > 0) {
/* its an entry we are interested in */
msg = msg_create(sms);
msg->sms.sms_type = report_mo;
msg->sms.dlr_mask = typ;
O_SET(msg->sms.service, dlr->service);
O_SET(msg->sms.smsc_id, dlr->smsc);
O_SET(msg->sms.receiver, dlr->destination);
O_SET(msg->sms.sender, dlr->source);
/* if dlr_url was present, recode it here again */
O_SET(msg->sms.dlr_url, dlr->url);
/* add the foreign_id */
msg->sms.foreign_id = octstr_duplicate(ts);
/*
* insert original message to the data segment
* later in the smsc module
*/
msg->sms.msgdata = NULL;
/*
* If a boxc_id is available, then instruct bearerbox to
* route this msg back to originating smsbox
*/
O_SET(msg->sms.boxc_id, dlr->boxc_id);
time(&msg->sms.time);
debug("dlr.dlr", 0, "DLR[%s]: created DLR message for URL <%s>",
dlr_type(), (msg->sms.dlr_url?octstr_get_cstr(msg->sms.dlr_url):""));
} else {
debug("dlr.dlr", 0, "DLR[%s]: Ignoring DLR message because of mask type=%d dlr->mask=%d", dlr_type(), typ, dlr->mask);
/* ok that was a status report but we where not interested in having it */
msg = NULL;
}
#undef O_SET
/* check for end status and if so remove from storage */
if ((typ & DLR_BUFFERED) && ((dlr->mask & DLR_SUCCESS) || (dlr->mask & DLR_FAIL))) {
debug("dlr.dlr", 0, "DLR[%s]: DLR not destroyed, still waiting for other delivery report", dlr_type());
/* update dlr entry status if function defined */
if (handles != NULL && handles->dlr_update != NULL)
handles->dlr_update(smsc, ts, dst, typ);
} else {
if (handles != NULL && handles->dlr_remove != NULL) {
/* it's not good for internal storage, but better for all others */
handles->dlr_remove(smsc, ts, dst);
} else {
warning(0, "DLR[%s]: Storage don't have remove operation defined", dlr_type());
}
}
/* destroy struct dlr_entry */
dlr_entry_destroy(dlr);
return msg;
}
/*
* opts_set --
* Change the values of one or more options.
*
* PUBLIC: int opts_set __P((SCR *, ARGS *[], const char *));
*/
int
opts_set(SCR *sp, ARGS **argv, const char *usage)
{
enum optdisp disp;
enum nresult nret;
OPTLIST const *op;
OPTION *spo;
u_long isset, turnoff, value;
int ch, equals, nf, nf2, offset, qmark, rval;
CHAR_T *endp, *name, *p, *sep;
char *p2, *t2;
const char *np;
size_t nlen;
disp = NO_DISPLAY;
for (rval = 0; argv[0]->len != 0; ++argv) {
/*
* The historic vi dumped the options for each occurrence of
* "all" in the set list. Puhleeze.
*/
if (!STRCMP(argv[0]->bp, L("all"))) {
disp = ALL_DISPLAY;
continue;
}
/* Find equals sign or question mark. */
for (sep = NULL, equals = qmark = 0,
p = name = argv[0]->bp; (ch = *p) != '\0'; ++p)
if (ch == '=' || ch == '?') {
if (p == name) {
if (usage != NULL)
msgq(sp, M_ERR,
"032|Usage: %s", usage);
return (1);
}
sep = p;
if (ch == '=')
equals = 1;
else
qmark = 1;
break;
}
turnoff = 0;
op = NULL;
if (sep != NULL)
*sep++ = '\0';
/* Search for the name, then name without any leading "no". */
if ((op = opts_search(name)) == NULL &&
name[0] == L('n') && name[1] == L('o')) {
turnoff = 1;
name += 2;
op = opts_search(name);
}
if (op == NULL) {
opts_nomatch(sp, name);
rval = 1;
continue;
}
/* Find current option values. */
offset = op - optlist;
spo = sp->opts + offset;
/*
* !!!
* Historically, the question mark could be a separate
* argument.
*/
if (!equals && !qmark &&
argv[1]->len == 1 && argv[1]->bp[0] == '?') {
++argv;
qmark = 1;
}
/* Set name, value. */
switch (op->type) {
case OPT_0BOOL:
case OPT_1BOOL:
/* Some options may not be reset. */
if (F_ISSET(op, OPT_NOUNSET) && turnoff) {
msgq_wstr(sp, M_ERR, name,
"291|set: the %s option may not be turned off");
rval = 1;
break;
}
/* Some options may not be set. */
if (F_ISSET(op, OPT_NOSET) && !turnoff) {
msgq_wstr(sp, M_ERR, name,
"313|set: the %s option may never be turned on");
rval = 1;
break;
}
if (equals) {
msgq_wstr(sp, M_ERR, name,
"034|set: [no]%s option doesn't take a value");
rval = 1;
break;
}
if (qmark) {
if (!disp)
disp = SELECT_DISPLAY;
F_SET(spo, OPT_SELECTED);
break;
}
/*
* Do nothing if the value is unchanged, the underlying
* functions can be expensive.
*/
isset = !turnoff;
if (!F_ISSET(op, OPT_ALWAYS)) {
if (isset) {
if (O_ISSET(sp, offset))
break;
} else
if (!O_ISSET(sp, offset))
break;
}
/* Report to subsystems. */
if ((op->func != NULL &&
op->func(sp, spo, NULL, &isset)) ||
ex_optchange(sp, offset, NULL, &isset) ||
v_optchange(sp, offset, NULL, &isset) ||
sp->gp->scr_optchange(sp, offset, NULL, &isset)) {
rval = 1;
break;
}
/* Set the value. */
if (isset)
O_SET(sp, offset);
else
O_CLR(sp, offset);
break;
case OPT_NUM:
if (turnoff) {
msgq_wstr(sp, M_ERR, name,
"035|set: %s option isn't a boolean");
rval = 1;
break;
}
if (qmark || !equals) {
if (!disp)
disp = SELECT_DISPLAY;
F_SET(spo, OPT_SELECTED);
break;
}
if (!ISDIGIT((UCHAR_T)sep[0]))
goto badnum;
if ((nret =
nget_uslong(sp, &value, sep, &endp, 10)) != NUM_OK) {
INT2CHAR(sp, name, STRLEN(name) + 1,
np, nlen);
p2 = msg_print(sp, np, &nf);
INT2CHAR(sp, sep, STRLEN(sep) + 1,
np, nlen);
t2 = msg_print(sp, np, &nf2);
switch (nret) {
case NUM_ERR:
msgq(sp, M_SYSERR,
"036|set: %s option: %s", p2, t2);
break;
case NUM_OVER:
msgq(sp, M_ERR,
"037|set: %s option: %s: value overflow", p2, t2);
break;
case NUM_OK:
case NUM_UNDER:
abort();
}
if (nf)
FREE_SPACE(sp, p2, 0);
if (nf2)
FREE_SPACE(sp, t2, 0);
rval = 1;
break;
}
if (*endp && !ISBLANK(*endp)) {
badnum: INT2CHAR(sp, name, STRLEN(name) + 1,
np, nlen);
p2 = msg_print(sp, np, &nf);
INT2CHAR(sp, sep, STRLEN(sep) + 1,
np, nlen);
t2 = msg_print(sp, np, &nf2);
msgq(sp, M_ERR,
"038|set: %s option: %s is an illegal number", p2, t2);
if (nf)
FREE_SPACE(sp, p2, 0);
if (nf2)
FREE_SPACE(sp, t2, 0);
rval = 1;
break;
}
/* Some options may never be set to zero. */
if (F_ISSET(op, OPT_NOZERO) && value == 0) {
msgq_wstr(sp, M_ERR, name,
"314|set: the %s option may never be set to 0");
rval = 1;
break;
}
/*
* Do nothing if the value is unchanged, the underlying
* functions can be expensive.
*/
if (!F_ISSET(op, OPT_ALWAYS) &&
O_VAL(sp, offset) == value)
break;
/* Report to subsystems. */
INT2CHAR(sp, sep, STRLEN(sep) + 1, np, nlen);
if ((op->func != NULL &&
op->func(sp, spo, np, &value)) ||
ex_optchange(sp, offset, np, &value) ||
v_optchange(sp, offset, np, &value) ||
sp->gp->scr_optchange(sp, offset, np, &value)) {
rval = 1;
break;
}
/* Set the value. */
if (o_set(sp, offset, 0, NULL, value))
rval = 1;
break;
case OPT_STR:
if (turnoff) {
msgq_wstr(sp, M_ERR, name,
"039|set: %s option isn't a boolean");
rval = 1;
break;
}
if (qmark || !equals) {
if (!disp)
disp = SELECT_DISPLAY;
F_SET(spo, OPT_SELECTED);
break;
}
/* Check for strings that must have even length */
if (F_ISSET(op, OPT_PAIRS) && STRLEN(sep) & 1) {
msgq_wstr(sp, M_ERR, name,
"047|set: the %s option must be in two character groups");
rval = 1;
break;
}
/*
* Do nothing if the value is unchanged, the underlying
* functions can be expensive.
*/
INT2CHAR(sp, sep, STRLEN(sep) + 1, np, nlen);
if (!F_ISSET(op, OPT_ALWAYS) &&
O_STR(sp, offset) != NULL &&
!strcmp(O_STR(sp, offset), np))
break;
/* Report to subsystems. */
if ((op->func != NULL &&
op->func(sp, spo, np, NULL)) ||
ex_optchange(sp, offset, np, NULL) ||
v_optchange(sp, offset, np, NULL) ||
sp->gp->scr_optchange(sp, offset, np, NULL)) {
rval = 1;
break;
}
/* Set the value. */
if (o_set(sp, offset, OS_STRDUP, np, 0))
rval = 1;
break;
default:
abort();
}
}
if (disp != NO_DISPLAY)
opts_dump(sp, disp);
return (rval);
}
/*
* opts_init --
* Initialize some of the options.
*
* PUBLIC: int opts_init __P((SCR *, int *));
*/
int
opts_init(SCR *sp, int *oargs)
{
ARGS *argv[2], a, b;
OPTLIST const *op;
u_long isset, v;
int cnt, optindx = 0;
char *s;
CHAR_T b2[1024];
if (sizeof optlist / sizeof optlist[0] - 1 != O_OPTIONCOUNT) {
fprintf(stderr, "vi: option table size error (%d != %d)\n",
(int)(sizeof optlist / sizeof optlist[0] - 1),
O_OPTIONCOUNT);
exit(1);
}
a.bp = b2;
b.bp = NULL;
a.len = b.len = 0;
argv[0] = &a;
argv[1] = &b;
/* Set numeric and string default values. */
#define OI(indx, str) { \
a.len = STRLEN(str); \
if ((const CHAR_T*)str != b2)/* GCC puts strings in text-space. */\
(void)MEMCPY(b2, str, a.len+1); \
if (opts_set(sp, argv, NULL)) { \
optindx = indx; \
goto err; \
} \
}
/*
* Indirect global options to global space. Specifically, set up
* terminal, lines, columns first, they're used by other options.
* Note, don't set the flags until we've set up the indirection.
*/
if (o_set(sp, O_TERM, 0, NULL, GO_TERM))
goto err;
F_SET(&sp->opts[O_TERM], OPT_GLOBAL);
if (o_set(sp, O_LINES, 0, NULL, GO_LINES))
goto err;
F_SET(&sp->opts[O_LINES], OPT_GLOBAL);
if (o_set(sp, O_COLUMNS, 0, NULL, GO_COLUMNS))
goto err;
F_SET(&sp->opts[O_COLUMNS], OPT_GLOBAL);
if (o_set(sp, O_SECURE, 0, NULL, GO_SECURE))
goto err;
F_SET(&sp->opts[O_SECURE], OPT_GLOBAL);
/* Initialize string values. */
(void)SPRINTF(b2, SIZE(b2),
L("cdpath=%s"), (s = getenv("CDPATH")) == NULL ? ":" : s);
OI(O_CDPATH, b2);
/*
* !!!
* Vi historically stored temporary files in /var/tmp. We store them
* in /tmp by default, hoping it's a memory based file system. There
* are two ways to change this -- the user can set either the directory
* option or the TMPDIR environmental variable.
*/
(void)SPRINTF(b2, SIZE(b2),
L("directory=%s"), (s = getenv("TMPDIR")) == NULL ? _PATH_TMP : s);
OI(O_TMP_DIRECTORY, b2);
OI(O_ESCAPETIME, L("escapetime=1"));
OI(O_KEYTIME, L("keytime=6"));
OI(O_MATCHCHARS, L("matchchars=()[]{}<>"));
OI(O_MATCHTIME, L("matchtime=7"));
(void)SPRINTF(b2, SIZE(b2), L("msgcat=%s"), _PATH_MSGCAT);
OI(O_MSGCAT, b2);
OI(O_REPORT, L("report=5"));
OI(O_PARAGRAPHS, L("paragraphs=IPLPPPQPP LIpplpipbp"));
(void)SPRINTF(b2, SIZE(b2), L("path=%s"), "");
OI(O_PATH, b2);
(void)SPRINTF(b2, SIZE(b2), L("recdir=%s"), _PATH_PRESERVE);
OI(O_RECDIR, b2);
OI(O_SECTIONS, L("sections=NHSHH HUnhsh"));
(void)SPRINTF(b2, SIZE(b2),
L("shell=%s"), (s = getenv("SHELL")) == NULL ? _PATH_BSHELL : s);
OI(O_SHELL, b2);
OI(O_SHELLMETA, L("shellmeta=~{[*?$`'\"\\"));
OI(O_SHIFTWIDTH, L("shiftwidth=8"));
OI(O_SIDESCROLL, L("sidescroll=16"));
OI(O_TABSTOP, L("tabstop=8"));
(void)SPRINTF(b2, SIZE(b2), L("tags=%s"), _PATH_TAGS);
OI(O_TAGS, b2);
/*
* XXX
* Initialize O_SCROLL here, after term; initializing term should
* have created a LINES/COLUMNS value.
*/
if ((v = (O_VAL(sp, O_LINES) - 1) / 2) == 0)
v = 1;
(void)SPRINTF(b2, SIZE(b2), L("scroll=%ld"), v);
OI(O_SCROLL, b2);
/*
* The default window option values are:
* 8 if baud rate <= 600
* 16 if baud rate <= 1200
* LINES - 1 if baud rate > 1200
*
* Note, the windows option code will correct any too-large value
* or when the O_LINES value is 1.
*/
if (sp->gp->scr_baud(sp, &v))
return (1);
if (v <= 600)
v = 8;
else if (v <= 1200)
v = 16;
else if ((v = O_VAL(sp, O_LINES) - 1) == 0)
v = 1;
(void)SPRINTF(b2, SIZE(b2), L("window=%lu"), v);
OI(O_WINDOW, b2);
/*
* Set boolean default values, and copy all settings into the default
* information. OS_NOFREE is set, we're copying, not replacing.
*/
for (op = optlist, cnt = 0; op->name != NULL; ++op, ++cnt)
switch (op->type) {
case OPT_0BOOL:
break;
case OPT_1BOOL:
O_SET(sp, cnt);
O_D_SET(sp, cnt);
break;
case OPT_NUM:
o_set(sp, cnt, OS_DEF, NULL, O_VAL(sp, cnt));
break;
case OPT_STR:
if (O_STR(sp, cnt) != NULL && o_set(sp, cnt,
OS_DEF | OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0))
goto err;
break;
default:
abort();
}
/*
* !!!
* Some options can be initialized by the command name or the
* command-line arguments. They don't set the default values,
* it's historic practice.
*/
for (; *oargs != -1; ++oargs)
OI(*oargs, optlist[*oargs].name);
#undef OI
/*
* Inform the underlying screen of the initial values of the
* edit options.
*/
for (op = optlist, cnt = 0; op->name != NULL; ++op, ++cnt) {
isset = O_ISSET(sp, cnt);
(void)sp->gp->scr_optchange(sp, cnt, O_STR(sp, cnt), &isset);
}
return (0);
err: msgq_wstr(sp, M_ERR, optlist[optindx].name,
"031|Unable to set default %s option");
return (1);
}
/*
* file_init --
* Start editing a file, based on the FREF structure. If successsful,
* let go of any previous file. Don't release the previous file until
* absolutely sure we have the new one.
*
* PUBLIC: int file_init __P((SCR *, FREF *, char *, int));
*/
int
file_init(SCR *sp, FREF *frp, char *rcv_name, int flags)
{
EXF *ep;
struct stat sb;
size_t psize;
int fd, exists, open_err, readonly, stolen;
char *oname, tname[MAXPATHLEN];
stolen = open_err = readonly = 0;
/*
* If the file is a recovery file, let the recovery code handle it.
* Clear the FR_RECOVER flag first -- the recovery code does set up,
* and then calls us! If the recovery call fails, it's probably
* because the named file doesn't exist. So, move boldly forward,
* presuming that there's an error message the user will get to see.
*/
if (F_ISSET(frp, FR_RECOVER)) {
F_CLR(frp, FR_RECOVER);
return (rcv_read(sp, frp));
}
/*
* Required FRP initialization; the only flag we keep is the
* cursor information.
*/
F_CLR(frp, ~FR_CURSORSET);
/*
* Scan the user's path to find the file that we're going to
* try and open.
*/
if (file_spath(sp, frp, &sb, &exists))
return (1);
/*
* Check whether we already have this file opened in some
* other screen.
*/
if (exists) {
EXF *exfp;
for (exfp = sp->gp->exfq.cqh_first;
exfp != (EXF *)&sp->gp->exfq; exfp = exfp->q.cqe_next) {
if (exfp->mdev == sb.st_dev &&
exfp->minode == sb.st_ino &&
(exfp != sp->ep || exfp->refcnt > 1)) {
ep = exfp;
goto postinit;
}
}
}
/*
* Required EXF initialization:
* Flush the line caches.
* Default recover mail file fd to -1.
* Set initial EXF flag bits.
*/
CALLOC_RET(sp, ep, EXF *, 1, sizeof(EXF));
CIRCLEQ_INIT(&ep->scrq);
sp->c_lno = ep->c_nlines = OOBLNO;
ep->rcv_fd = ep->fcntl_fd = -1;
F_SET(ep, F_FIRSTMODIFY);
/*
* If no name or backing file, for whatever reason, create a backing
* temporary file, saving the temp file name so we can later unlink
* it. If the user never named this file, copy the temporary file name
* to the real name (we display that until the user renames it).
*/
oname = frp->name;
if (LF_ISSET(FS_OPENERR) || oname == NULL || !exists) {
if (opts_empty(sp, O_TMP_DIRECTORY, 0))
goto err;
(void)snprintf(tname, sizeof(tname),
"%s/vi.XXXXXX", O_STR(sp, O_TMP_DIRECTORY));
if ((fd = mkstemp(tname)) == -1) {
msgq(sp, M_SYSERR,
"237|Unable to create temporary file");
goto err;
}
(void)close(fd);
if (frp->name == NULL)
F_SET(frp, FR_TMPFILE);
if ((frp->tname = strdup(tname)) == NULL ||
(frp->name == NULL &&
(frp->name = strdup(tname)) == NULL)) {
if (frp->tname != NULL) {
free(frp->tname);
}
msgq(sp, M_SYSERR, NULL);
(void)unlink(tname);
goto err;
}
oname = frp->tname;
psize = 1024;
if (!LF_ISSET(FS_OPENERR))
F_SET(frp, FR_NEWFILE);
time(&ep->mtime);
} else {
/*
* XXX
* A seat of the pants calculation: try to keep the file in
* 15 pages or less. Don't use a page size larger than 10K
* (vi should have good locality) or smaller than 1K.
*/
psize = ((sb.st_size / 15) + 1023) / 1024;
if (psize > 10)
psize = 10;
if (psize == 0)
psize = 1;
psize *= 1024;
F_SET(ep, F_DEVSET);
ep->mdev = sb.st_dev;
ep->minode = sb.st_ino;
ep->mtime = sb.st_mtime;
if (!S_ISREG(sb.st_mode))
msgq_str(sp, M_ERR, oname,
"238|Warning: %s is not a regular file");
}
/* Set up recovery. */
if (rcv_name == NULL) {
/* ep->rcv_path NULL if rcv_tmp fails */
rcv_tmp(sp, ep, frp->name);
} else {
if ((ep->rcv_path = strdup(rcv_name)) == NULL) {
msgq(sp, M_SYSERR, NULL);
goto err;
}
F_SET(ep, F_MODIFIED);
}
if (db_setup(sp, ep))
goto err;
/* Open a db structure. */
if ((sp->db_error = db_create(&ep->db, 0, 0)) != 0) {
msgq(sp, M_DBERR, "db_create");
goto err;
}
ep->db->set_re_delim(ep->db, '\n'); /* Always set. */
ep->db->set_pagesize(ep->db, psize);
ep->db->set_flags(ep->db, DB_RENUMBER | DB_SNAPSHOT);
if (rcv_name == NULL)
ep->db->set_re_source(ep->db, oname);
/*
* Don't let db use mmap when using fcntl for locking
*/
#ifdef HAVE_LOCK_FCNTL
#define NOMMAPIFFCNTL DB_NOMMAP
#else
#define NOMMAPIFFCNTL 0
#endif
#define _DB_OPEN_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH
if ((sp->db_error = db_open(ep->db, ep->rcv_path, DB_RECNO,
((rcv_name == 0) ? DB_TRUNCATE : 0) | VI_DB_THREAD | NOMMAPIFFCNTL,
_DB_OPEN_MODE)) != 0) {
msgq_str(sp,
M_DBERR, rcv_name == NULL ? oname : rcv_name, "%s");
/*
* !!!
* Historically, vi permitted users to edit files that couldn't
* be read. This isn't useful for single files from a command
* line, but it's quite useful for "vi *.c", since you can skip
* past files that you can't read.
*/
ep->db = NULL; /* Don't close it; it wasn't opened */
if (LF_ISSET(FS_OPENERR))
goto err;
open_err = 1;
goto oerr;
}
/* re_source is loaded into the database.
* Close it and reopen it in the environment.
*/
if ((sp->db_error = ep->db->close(ep->db, 0))) {
msgq(sp, M_DBERR, "close");
goto err;
}
if ((sp->db_error = db_create(&ep->db, ep->env, 0)) != 0) {
msgq(sp, M_DBERR, "db_create 2");
goto err;
}
if ((sp->db_error = db_open(ep->db, ep->rcv_path, DB_RECNO,
VI_DB_THREAD | NOMMAPIFFCNTL, _DB_OPEN_MODE)) != 0) {
msgq_str(sp,
M_DBERR, ep->rcv_path, "%s");
goto err;
}
/*
* Do the remaining things that can cause failure of the new file,
* mark and logging initialization.
*/
if (mark_init(sp, ep) || log_init(sp, ep))
goto err;
postinit:
/*
* Set the alternate file name to be the file we're discarding.
*
* !!!
* Temporary files can't become alternate files, so there's no file
* name. This matches historical practice, although it could only
* happen in historical vi as the result of the initial command, i.e.
* if vi was executed without a file name.
*/
if (LF_ISSET(FS_SETALT))
set_alt_name(sp, sp->frp == NULL ||
F_ISSET(sp->frp, FR_TMPFILE) ? NULL : sp->frp->name);
/*
* Close the previous file; if that fails, close the new one and run
* for the border.
*
* !!!
* There's a nasty special case. If the user edits a temporary file,
* and then does an ":e! %", we need to re-initialize the backing
* file, but we can't change the name. (It's worse -- we're dealing
* with *names* here, we can't even detect that it happened.) Set a
* flag so that the file_end routine ignores the backing information
* of the old file if it happens to be the same as the new one.
*
* !!!
* Side-effect: after the call to file_end(), sp->frp may be NULL.
*/
if (sp->ep != NULL) {
F_SET(frp, FR_DONTDELETE);
if (file_end(sp, NULL, LF_ISSET(FS_FORCE))) {
(void)file_end(sp, ep, 1);
goto err;
}
sp->ep = NULL;
F_CLR(frp, FR_DONTDELETE);
}
/*
* Lock the file; if it's a recovery file, it should already be
* locked. Note, we acquire the lock after the previous file
* has been ended, so that we don't get an "already locked" error
* for ":edit!".
*
* XXX
* While the user can't interrupt us between the open and here,
* there's a race between the dbopen() and the lock. Not much
* we can do about it.
*
* XXX
* We don't make a big deal of not being able to lock the file. As
* locking rarely works over NFS, and often fails if the file was
* mmap(2)'d, it's far too common to do anything like print an error
* message, let alone make the file readonly. At some future time,
* when locking is a little more reliable, this should change to be
* an error.
*/
if (rcv_name == NULL && ep->refcnt == 0) {
if ((ep->fd = open(oname, O_RDWR)) == -1)
goto no_lock;
switch (file_lock(sp, oname, &ep->fcntl_fd, ep->fd, 1)) {
case LOCK_FAILED:
no_lock:
F_SET(frp, FR_UNLOCKED);
break;
case LOCK_UNAVAIL:
readonly = 1;
msgq_str(sp, M_INFO, oname,
"239|%s already locked, session is read-only");
break;
case LOCK_SUCCESS:
break;
}
}
/*
* Historically, the readonly edit option was set per edit buffer in
* vi, unless the -R command-line option was specified or the program
* was executed as "view". (Well, to be truthful, if the letter 'w'
* occurred anywhere in the program name, but let's not get into that.)
* So, the persistant readonly state has to be stored in the screen
* structure, and the edit option value toggles with the contents of
* the edit buffer. If the persistant readonly flag is set, set the
* readonly edit option.
*
* Otherwise, try and figure out if a file is readonly. This is a
* dangerous thing to do. The kernel is the only arbiter of whether
* or not a file is writeable, and the best that a user program can
* do is guess. Obvious loopholes are files that are on a file system
* mounted readonly (access catches this one on a few systems), or
* alternate protection mechanisms, ACL's for example, that we can't
* portably check. Lots of fun, and only here because users whined.
*
* !!!
* Historic vi displayed the readonly message if none of the file
* write bits were set, or if an an access(2) call on the path
* failed. This seems reasonable. If the file is mode 444, root
* users may want to know that the owner of the file did not expect
* it to be written.
*
* Historic vi set the readonly bit if no write bits were set for
* a file, even if the access call would have succeeded. This makes
* the superuser force the write even when vi expects that it will
* succeed. I'm less supportive of this semantic, but it's historic
* practice and the conservative approach to vi'ing files as root.
*
* It would be nice if there was some way to update this when the user
* does a "^Z; chmod ...". The problem is that we'd first have to
* distinguish between readonly bits set because of file permissions
* and those set for other reasons. That's not too hard, but deciding
* when to reevaluate the permissions is trickier. An alternative
* might be to turn off the readonly bit if the user forces a write
* and it succeeds.
*
* XXX
* Access(2) doesn't consider the effective uid/gid values. This
* probably isn't a problem for vi when it's running standalone.
*/
if (readonly || F_ISSET(sp, SC_READONLY) ||
(!F_ISSET(frp, FR_NEWFILE) &&
(!(sb.st_mode & (S_IWUSR | S_IWGRP | S_IWOTH)) ||
access(frp->name, W_OK))))
O_SET(sp, O_READONLY);
else
O_CLR(sp, O_READONLY);
/* Switch... */
++ep->refcnt;
CIRCLEQ_INSERT_HEAD(&ep->scrq, sp, eq);
sp->ep = ep;
sp->frp = frp;
/* Set the initial cursor position, queue initial command. */
file_cinit(sp);
/* Report conversion errors again. */
F_CLR(sp, SC_CONV_ERROR);
/* Redraw the screen from scratch, schedule a welcome message. */
F_SET(sp, SC_SCR_REFORMAT | SC_STATUS);
if (frp->lno == OOBLNO)
F_SET(sp, SC_SCR_TOP);
/* Append into the chain of file structures. */
if (ep->refcnt == 1)
CIRCLEQ_INSERT_TAIL(&sp->gp->exfq, ep, q);
return (0);
err:
if (frp->name != NULL) {
free(frp->name);
frp->name = NULL;
}
if (frp->tname != NULL) {
(void)unlink(frp->tname);
free(frp->tname);
frp->tname = NULL;
}
oerr:
if (F_ISSET(ep, F_RCV_ON))
(void)unlink(ep->rcv_path);
if (ep->rcv_path != NULL) {
free(ep->rcv_path);
ep->rcv_path = NULL;
}
if (ep->db != NULL) {
(void)ep->db->close(ep->db, DB_NOSYNC);
ep->db = NULL;
}
free(ep);
return (open_err && !LF_ISSET(FS_OPENERR) ?
file_init(sp, frp, rcv_name, flags | FS_OPENERR) : 1);
}
/*
* ex_visual -- :[line] vi[sual] [^-.+] [window_size] [flags]
* Switch to visual mode.
*
* PUBLIC: int ex_visual(SCR *, EXCMD *);
*/
int
ex_visual(SCR *sp, EXCMD *cmdp)
{
SCR *tsp;
size_t len;
int pos;
char buf[256];
/* If open option off, disallow visual command. */
if (!O_ISSET(sp, O_OPEN)) {
msgq(sp, M_ERR,
"The visual command requires that the open option be set");
return (1);
}
/* Move to the address. */
sp->lno = cmdp->addr1.lno == 0 ? 1 : cmdp->addr1.lno;
/*
* Push a command based on the line position flags. If no
* flag specified, the line goes at the top of the screen.
*/
switch (FL_ISSET(cmdp->iflags,
E_C_CARAT | E_C_DASH | E_C_DOT | E_C_PLUS)) {
case E_C_CARAT:
pos = '^';
break;
case E_C_DASH:
pos = '-';
break;
case E_C_DOT:
pos = '.';
break;
case E_C_PLUS:
pos = '+';
break;
default:
sp->frp->lno = sp->lno;
sp->frp->cno = 0;
(void)nonblank(sp, sp->lno, &sp->cno);
F_SET(sp->frp, FR_CURSORSET);
goto nopush;
}
if (FL_ISSET(cmdp->iflags, E_C_COUNT))
len = snprintf(buf, sizeof(buf),
"%luz%c%lu", (ulong)sp->lno, pos, cmdp->count);
else
len = snprintf(buf, sizeof(buf), "%luz%c", (ulong)sp->lno, pos);
if (len >= sizeof(buf))
len = sizeof(buf) - 1;
(void)v_event_push(sp, NULL, buf, len, CH_NOMAP | CH_QUOTED);
/*
* !!!
* Historically, if no line address was specified, the [p#l] flags
* caused the cursor to be moved to the last line of the file, which
* was then positioned as described above. This seems useless, so
* I haven't implemented it.
*/
switch (FL_ISSET(cmdp->iflags, E_C_HASH | E_C_LIST | E_C_PRINT)) {
case E_C_HASH:
O_SET(sp, O_NUMBER);
break;
case E_C_LIST:
O_SET(sp, O_LIST);
break;
case E_C_PRINT:
break;
}
nopush: /*
* !!!
* You can call the visual part of the editor from within an ex
* global command.
*
* XXX
* Historically, undoing a visual session was a single undo command,
* i.e. you could undo all of the changes you made in visual mode.
* We don't get this right; I'm waiting for the new logging code to
* be available.
*
* It's explicit, don't have to wait for the user, unless there's
* already a reason to wait.
*/
if (!F_ISSET(sp, SC_SCR_EXWROTE))
F_SET(sp, SC_EX_WAIT_NO);
if (F_ISSET(sp, SC_EX_GLOBAL)) {
/*
* When the vi screen(s) exit, we don't want to lose our hold
* on this screen or this file, otherwise we're going to fail
* fairly spectacularly.
*/
++sp->refcnt;
++sp->ep->refcnt;
/*
* Fake up a screen pointer -- vi doesn't get to change our
* underlying file, regardless.
*/
tsp = sp;
if (vi(&tsp))
return (1);
/*
* !!!
* Historically, if the user exited the vi screen(s) using an
* ex quit command (e.g. :wq, :q) ex/vi exited, it was only if
* they exited vi using the Q command that ex continued. Some
* early versions of nvi continued in ex regardless, but users
* didn't like the semantic.
*
* Reset the screen.
*/
if (ex_init(sp))
return (1);
/* Move out of the vi screen. */
(void)ex_puts(sp, "\n");
} else {
F_CLR(sp, SC_EX | SC_SCR_EX);
F_SET(sp, SC_VI);
}
return (0);
}
