NCURSES_SP_NAME(tgetent) (NCURSES_SP_DCLx char *bufp, const char *name)
{
int rc = ERR;
int n;
bool found_cache = FALSE;
#ifdef USE_TERM_DRIVER
TERMINAL *termp = 0;
#endif
START_TRACE();
T((T_CALLED("tgetent()")));
TINFO_SETUP_TERM(&termp, (NCURSES_CONST char *) name,
STDOUT_FILENO, &rc, TRUE);
#ifdef USE_TERM_DRIVER
if (termp == 0 ||
!((TERMINAL_CONTROL_BLOCK *) termp)->drv->isTerminfo)
returnCode(rc);
#endif
/*
* In general we cannot tell if the fixed sgr0 is still used by the
* caller, but if tgetent() is called with the same buffer, that is
* good enough, since the previous data would be invalidated by the
* current call.
*
* bufp may be a null pointer, e.g., GNU termcap. That allocates data,
* which is good until the next tgetent() call. The conventional termcap
* is inconvenient because of the fixed buffer size, but because it uses
* caller-supplied buffers, can have multiple terminal descriptions in
* use at a given time.
*/
for (n = 0; n < TGETENT_MAX; ++n) {
bool same_result = (MyCache[n].last_used && MyCache[n].last_bufp == bufp);
if (same_result) {
CacheInx = n;
if (FIX_SGR0 != 0) {
FreeAndNull(FIX_SGR0);
}
/*
* Also free the terminfo data that we loaded (much bigger leak).
*/
if (LAST_TRM != 0 && LAST_TRM != TerminalOf(SP_PARM)) {
TERMINAL *trm = LAST_TRM;
NCURSES_SP_NAME(del_curterm) (NCURSES_SP_ARGx LAST_TRM);
for (CacheInx = 0; CacheInx < TGETENT_MAX; ++CacheInx)
if (LAST_TRM == trm)
LAST_TRM = 0;
CacheInx = n;
}
found_cache = TRUE;
break;
}
}
if (!found_cache) {
int best = 0;
for (CacheInx = 0; CacheInx < TGETENT_MAX; ++CacheInx) {
if (LAST_SEQ < MyCache[best].sequence) {
best = CacheInx;
}
}
CacheInx = best;
}
if (rc == 1) {
LAST_TRM = TerminalOf(SP_PARM);
LAST_SEQ = ++CacheSeq;
} else {
LAST_TRM = 0;
}
PC = 0;
UP = 0;
BC = 0;
FIX_SGR0 = 0; /* don't free it - application may still use */
if (rc == 1) {
if (cursor_left)
if ((backspaces_with_bs = (char) !strcmp(cursor_left, "\b")) == 0)
backspace_if_not_bs = cursor_left;
/* we're required to export these */
if (pad_char != NULL)
PC = pad_char[0];
if (cursor_up != NULL)
UP = cursor_up;
if (backspace_if_not_bs != NULL)
BC = backspace_if_not_bs;
if ((FIX_SGR0 = _nc_trim_sgr0(&TerminalType(TerminalOf(SP_PARM))))
!= 0) {
if (!strcmp(FIX_SGR0, exit_attribute_mode)) {
if (FIX_SGR0 != exit_attribute_mode) {
free(FIX_SGR0);
}
FIX_SGR0 = 0;
}
}
LAST_BUF = bufp;
LAST_USE = TRUE;
SetNoPadding(SP_PARM);
(void) NCURSES_SP_NAME(baudrate) (NCURSES_SP_ARG); /* sets ospeed as a side-effect */
/* LINT_PREPRO
#if 0*/
#include <capdefaults.c>
/* LINT_PREPRO
#endif*/
}
returnCode(rc);
}
tgetent(char *bufp, const char *name)
{
int errcode;
int n;
bool found_cache = FALSE;
START_TRACE();
T((T_CALLED("tgetent()")));
_nc_setupterm((NCURSES_CONST char *) name, STDOUT_FILENO, &errcode, TRUE);
/*
* In general we cannot tell if the fixed sgr0 is still used by the
* caller, but if tgetent() is called with the same buffer, that is
* good enough, since the previous data would be invalidated by the
* current call.
*
* bufp may be a null pointer, e.g., GNU termcap. That allocates data,
* which is good until the next tgetent() call. The conventional termcap
* is inconvenient because of the fixed buffer size, but because it uses
* caller-supplied buffers, can have multiple terminal descriptions in
* use at a given time.
*/
for (n = 0; n < TGETENT_MAX; ++n) {
bool same_result = (MyCache[n].last_used && MyCache[n].last_bufp == bufp);
if (same_result) {
CacheInx = n;
if (FIX_SGR0 != 0) {
FreeAndNull(FIX_SGR0);
}
/*
* Also free the terminfo data that we loaded (much bigger leak).
*/
if (LAST_TRM != 0 && LAST_TRM != cur_term) {
TERMINAL *trm = LAST_TRM;
del_curterm(LAST_TRM);
for (CacheInx = 0; CacheInx < TGETENT_MAX; ++CacheInx)
if (LAST_TRM == trm)
LAST_TRM = 0;
CacheInx = n;
}
found_cache = TRUE;
break;
}
}
if (!found_cache) {
int best = 0;
for (CacheInx = 0; CacheInx < TGETENT_MAX; ++CacheInx) {
if (LAST_SEQ < MyCache[best].sequence) {
best = CacheInx;
}
}
CacheInx = best;
}
LAST_TRM = cur_term;
LAST_SEQ = ++CacheSeq;
PC = 0;
UP = 0;
BC = 0;
FIX_SGR0 = 0; /* don't free it - application may still use */
if (errcode == 1) {
if (cursor_left)
if ((backspaces_with_bs = (char) !strcmp(cursor_left, "\b")) == 0)
backspace_if_not_bs = cursor_left;
/* we're required to export these */
if (pad_char != NULL)
PC = pad_char[0];
if (cursor_up != NULL)
UP = cursor_up;
if (backspace_if_not_bs != NULL)
BC = backspace_if_not_bs;
if ((FIX_SGR0 = _nc_trim_sgr0(&(cur_term->type))) != 0) {
if (!strcmp(FIX_SGR0, exit_attribute_mode)) {
if (FIX_SGR0 != exit_attribute_mode) {
free(FIX_SGR0);
}
FIX_SGR0 = 0;
}
}
LAST_BUF = bufp;
LAST_USE = TRUE;
SetNoPadding(SP);
(void) baudrate(); /* sets ospeed as a side-effect */
/* LINT_PREPRO
#if 0*/
#include <capdefaults.c>
/* LINT_PREPRO
#endif*/
}
#ifdef FREEBSD_NATIVE
/*
* This is a REALLY UGLY hack. Basically, if we originate with
* a termcap source, try and copy it out.
*/
if (bufp && _nc_termcap[0])
strncpy(bufp, _nc_termcap, 1024);
#endif
returnCode(errcode);
}
