static int
make_db_path(char *dst, const char *src, unsigned limit)
{
int rc = -1;
const char *top = _nc_tic_dir(0);
if (src == top || _nc_is_abs_path(src)) {
if (strlen(src) + 1 <= limit) {
(void) strlcpy(dst, src, limit);
rc = 0;
}
} else {
if (strlen(top) + strlen(src) + 2 <= limit) {
(void) snprintf(dst, limit, "%s/%s", top, src);
rc = 0;
}
}
#if USE_HASHED_DB
if (rc == 0) {
if (_nc_is_dir_path(dst)) {
rc = -1;
} else {
unsigned have = strlen(dst);
if (have > 3 && strcmp(dst + have - 3, DBM_SUFFIX)) {
if (have + 3 <= limit)
strlcat(dst, DBM_SUFFIX, limit);
else
rc = -1;
}
}
}
#endif
return rc;
}
static int
make_db_path(char *dst, const char *src, size_t limit)
{
int rc = -1;
const char *top = _nc_tic_dir(0);
if (src == top || _nc_is_abs_path(src)) {
if (strlen(src) + 1 <= limit) {
_nc_STRCPY(dst, src, limit);
rc = 0;
}
} else {
if (strlen(top) + strlen(src) + 2 <= limit) {
_nc_SPRINTF(dst, _nc_SLIMIT(limit) "%s/%s", top, src);
rc = 0;
}
}
#if USE_HASHED_DB
if (rc == 0) {
static const char suffix[] = DBM_SUFFIX;
size_t have = strlen(dst);
size_t need = strlen(suffix);
if (have > need && strcmp(dst + (int) (have - need), suffix)) {
if (have + need <= limit) {
_nc_STRCAT(dst, suffix, limit);
} else {
rc = -1;
}
} else if (_nc_is_dir_path(dst)) {
rc = -1;
}
}
#endif
return rc;
}
static int
make_db_path(char *dst, const char *src, unsigned limit)
{
int rc = -1;
const char *top = _nc_tic_dir(0);
if (src == top || _nc_is_abs_path(src)) {
if (strlen(src) + 1 <= limit) {
(void) strcpy(dst, src);
rc = 0;
}
} else {
if (strlen(top) + strlen(src) + 2 <= limit) {
(void) sprintf(dst, "%s/%s", top, src);
rc = 0;
}
}
#if USE_HASHED_DB
if (rc == 0) {
if (_nc_is_dir_path(dst)) {
rc = -1;
} else {
static const char suffix[] = DBM_SUFFIX;
unsigned have = strlen(dst);
unsigned need = strlen(suffix);
if (have > need && strcmp(dst + have - need, suffix)) {
if (have + need <= limit)
strcat(dst, suffix);
else
rc = -1;
}
}
}
#endif
return rc;
}
/*
* Figure out what kind of terminal we're dealing with, and then read in
* its termcap entry.
*/
static const char *
get_termcap_entry(char *userarg)
{
int errret;
char *p;
const char *ttype;
#if HAVE_GETTTYNAM
struct ttyent *t;
#else
FILE *fp;
#endif
char *ttypath;
if (userarg) {
ttype = userarg;
goto found;
}
/* Try the environment. */
if ((ttype = getenv("TERM")) != 0)
goto map;
if ((ttypath = ttyname(STDERR_FILENO)) != 0) {
p = _nc_basename(ttypath);
#if HAVE_GETTTYNAM
/*
* We have the 4.3BSD library call getttynam(3); that means
* there's an /etc/ttys to look up device-to-type mappings in.
* Try ttyname(3); check for dialup or other mapping.
*/
if ((t = getttynam(p))) {
ttype = t->ty_type;
goto map;
}
#else
if ((fp = fopen("/etc/ttytype", "r")) != 0
|| (fp = fopen("/etc/ttys", "r")) != 0) {
char buffer[BUFSIZ];
char *s, *t, *d;
while (fgets(buffer, sizeof(buffer), fp) != NULL) {
for (s = buffer, t = d = 0; *s; s++) {
if (isspace(UChar(*s)))
*s = '\0';
else if (t == 0)
t = s;
else if (d == 0 && s != buffer && s[-1] == '\0')
d = s;
}
if (t != 0 && d != 0 && !strcmp(d, p)) {
ttype = strdup(t);
fclose(fp);
goto map;
}
}
fclose(fp);
}
#endif /* HAVE_GETTTYNAM */
}
/* If still undefined, use "unknown". */
ttype = "unknown";
map:ttype = mapped(ttype);
/*
* If not a path, remove TERMCAP from the environment so we get a
* real entry from /etc/termcap. This prevents us from being fooled
* by out of date stuff in the environment.
*/
found:if ((p = getenv("TERMCAP")) != 0 && !_nc_is_abs_path(p)) {
/* 'unsetenv("TERMCAP")' is not portable.
* The 'environ' array is better.
*/
int n;
for (n = 0; environ[n] != 0; n++) {
if (!strncmp("TERMCAP=", environ[n], 8)) {
while ((environ[n] = environ[n + 1]) != 0) {
n++;
}
break;
}
}
}
/*
* ttype now contains a pointer to the type of the terminal.
* If the first character is '?', ask the user.
*/
if (ttype[0] == '?') {
if (ttype[1] != '\0')
ttype = askuser(ttype + 1);
else
ttype = askuser(0);
}
/* Find the terminfo entry. If it doesn't exist, ask the user. */
while (setupterm((NCURSES_CONST char *) ttype, STDOUT_FILENO, &errret)
!= OK) {
if (errret == 0) {
(void) fprintf(stderr, "%s: unknown terminal type %s\n",
_nc_progname, ttype);
ttype = 0;
} else {
(void) fprintf(stderr,
"%s: can't initialize terminal type %s (error %d)\n",
_nc_progname, ttype, errret);
ttype = 0;
}
ttype = askuser(ttype);
}
#if BROKEN_LINKER
tgetflag("am"); /* force lib_termcap.o to be linked for 'ospeed' */
#endif
return (ttype);
}
