/*
* make_directory(char *path)
*
* Make a directory if it doesn't exist.
*/
static int
make_directory(const char *path)
{
int rc;
struct stat statbuf;
char fullpath[PATH_MAX];
const char *destination = _nc_tic_dir(0);
if (path == destination || *path == '/') {
if (strlen(path) + 1 > sizeof(fullpath))
return (-1);
(void) strcpy(fullpath, path);
} else {
if (strlen(destination) + strlen(path) + 2 > sizeof(fullpath))
return (-1);
(void) sprintf(fullpath, "%s/%s", destination, path);
}
if ((rc = stat(path, &statbuf)) < 0) {
rc = mkdir(path, 0777);
} else {
if (_nc_access(path, R_OK | W_OK | X_OK) < 0) {
rc = -1; /* permission denied */
} else if (!(S_ISDIR(statbuf.st_mode))) {
rc = -1; /* not a directory */
}
}
return rc;
}
trace(const unsigned int tracelevel GCC_UNUSED)
{
static bool been_here = FALSE;
static char my_name[] = "trace";
if (!been_here && tracelevel) {
been_here = TRUE;
_nc_tracing = tracelevel;
if (_nc_access(my_name, W_OK) < 0
|| (tracefp = fopen(my_name, "wb")) == 0) {
perror("curses: Can't open 'trace' file: ");
exit(EXIT_FAILURE);
}
/* Try to set line-buffered mode, or (failing that) unbuffered,
* so that the trace-output gets flushed automatically at the
* end of each line. This is useful in case the program dies.
*/
#if HAVE_SETVBUF /* ANSI */
(void) setvbuf(tracefp, (char *) 0, _IOLBF, 0);
#elif HAVE_SETBUF /* POSIX */
(void) setbuffer(tracefp, (char *) 0);
#endif
_tracef("TRACING NCURSES version %s (tracelevel=%#x)",
curses_version(), tracelevel);
} else if (_nc_tracing != tracelevel) {
_nc_tracing = tracelevel;
_tracef("tracelevel=%#x", tracelevel);
}
}
NCURSES_SP_NAME(scr_init) (NCURSES_SP_DCLx const char *file)
{
FILE *fp = 0;
int code = ERR;
T((T_CALLED("scr_init(%p,%s)"), (void *) SP_PARM, _nc_visbuf(file)));
if (SP_PARM != 0 &&
#ifdef USE_TERM_DRIVER
InfoOf(SP_PARM).caninit
#else
!(exit_ca_mode && non_rev_rmcup)
#endif
) {
if (_nc_access(file, R_OK) >= 0
&& (fp = fopen(file, "rb")) != 0) {
delwin(CurScreen(SP_PARM));
CurScreen(SP_PARM) = getwin(fp);
#if !USE_REENTRANT
curscr = CurScreen(SP_PARM);
#endif
(void) fclose(fp);
if (CurScreen(SP_PARM) != 0) {
code = OK;
}
}
}
returnCode(code);
}
/*
* Make a database-root if it doesn't exist.
*/
static int
make_db_root(const char *path)
{
int rc;
char fullpath[PATH_MAX];
if ((rc = make_db_path(fullpath, path, sizeof(fullpath))) == 0) {
#if USE_HASHED_DB
DB *capdbp;
if ((capdbp = _nc_db_open(fullpath, TRUE)) == NULL)
rc = -1;
else if (_nc_db_close(capdbp) < 0)
rc = -1;
#else
struct stat statbuf;
if ((rc = stat(path, &statbuf)) < 0) {
rc = mkdir(path, 0777);
} else if (_nc_access(path, R_OK | W_OK | X_OK) < 0) {
rc = -1; /* permission denied */
} else if (!(S_ISDIR(statbuf.st_mode))) {
rc = -1; /* not a directory */
}
#endif
}
return rc;
}
static int add_tc(char *termpaths[], char *path, int count)
{
if (count < MAXPATHS
&& _nc_access(path, R_OK) == 0)
termpaths[count++] = path;
termpaths[count] = 0;
return count;
}
static void write_file(char *filename, TERMTYPE *tp)
{
FILE *fp = (_nc_access(filename, W_OK) == 0) ? fopen(filename, "wb") : 0;
if (fp == 0) {
perror(filename);
_nc_syserr_abort("can't open %s/%s", _nc_tic_dir(0), filename);
}
DEBUG(1, ("Created %s", filename));
if (write_object(fp, tp) == ERR) {
_nc_syserr_abort("error writing %s/%s", _nc_tic_dir(0), filename);
}
fclose(fp);
}
trace(const unsigned int tracelevel)
{
if ((TraceFP == 0) && tracelevel) {
const char *mode = _nc_globals.init_trace ? "ab" : "wb";
if (TracePath[0] == '\0') {
int size = sizeof(TracePath) - 12;
if (getcwd(TracePath, size) == 0) {
perror("curses: Can't get working directory");
exit(EXIT_FAILURE);
}
TracePath[size] = '\0';
assert(strlen(TracePath) <= size);
strlcat(TracePath, "/trace", sizeof(TracePath));
if (_nc_is_dir_path(TracePath)) {
strlcat(TracePath, ".log", sizeof(TracePath));
}
}
_nc_globals.init_trace = TRUE;
_nc_tracing = tracelevel;
if (_nc_access(TracePath, W_OK) < 0
|| (TraceFP = fopen(TracePath, mode)) == 0) {
perror("curses: Can't open 'trace' file");
exit(EXIT_FAILURE);
}
/* Try to set line-buffered mode, or (failing that) unbuffered,
* so that the trace-output gets flushed automatically at the
* end of each line. This is useful in case the program dies.
*/
#if HAVE_SETVBUF /* ANSI */
(void) setvbuf(TraceFP, (char *) 0, _IOLBF, 0);
#elif HAVE_SETBUF /* POSIX */
(void) setbuffer(TraceFP, (char *) 0);
#endif
_tracef("TRACING NCURSES version %s.%d (tracelevel=%#x)",
NCURSES_VERSION,
NCURSES_VERSION_PATCH,
tracelevel);
} else if (tracelevel == 0) {
if (TraceFP != 0) {
fclose(TraceFP);
TraceFP = 0;
}
_nc_tracing = tracelevel;
} else if (_nc_tracing != tracelevel) {
_nc_tracing = tracelevel;
_tracef("tracelevel=%#x", tracelevel);
}
}
scr_dump(const char *file)
{
FILE *fp = 0;
T((T_CALLED("scr_dump(%s)"), _nc_visbuf(file)));
if (_nc_access(file, W_OK) < 0
|| (fp = fopen(file, "wb")) == 0) {
returnCode(ERR);
} else {
(void) putwin(newscr, fp);
(void) fclose(fp);
returnCode(OK);
}
}
scr_restore(const char *file)
{
FILE *fp = 0;
T((T_CALLED("scr_restore(%s)"), _nc_visbuf(file)));
if (_nc_access(file, R_OK) < 0
|| (fp = fopen(file, "rb")) == 0) {
returnCode(ERR);
} else {
delwin(newscr);
SP->_newscr = newscr = getwin(fp);
(void) fclose(fp);
returnCode(OK);
}
}
scr_init(const char *file)
{
FILE *fp = 0;
T((T_CALLED("scr_init(%s)"), _nc_visbuf(file)));
if (exit_ca_mode && non_rev_rmcup)
returnCode(ERR);
if (_nc_access(file, R_OK) < 0
|| (fp = fopen(file, "rb")) == 0) {
returnCode(ERR);
} else {
delwin(curscr);
SP->_curscr = curscr = getwin(fp);
(void) fclose(fp);
returnCode(OK);
}
}
NCURSES_SP_NAME(scr_restore) (NCURSES_SP_DCLx const char *file)
{
FILE *fp = 0;
T((T_CALLED("scr_restore(%s)"), _nc_visbuf(file)));
if (_nc_access(file, R_OK) < 0
|| (fp = fopen(file, "rb")) == 0) {
returnCode(ERR);
} else {
delwin(newscr);
SP_PARM->_newscr = getwin(fp);
#if !USE_REENTRANT
newscr = SP_PARM->_newscr;
#endif
(void) fclose(fp);
returnCode(OK);
}
}
NCURSES_SP_NAME(scr_restore) (NCURSES_SP_DCLx const char *file)
{
FILE *fp = 0;
int code = ERR;
T((T_CALLED("scr_restore(%p,%s)"), (void *) SP_PARM, _nc_visbuf(file)));
if (_nc_access(file, R_OK) >= 0
&& (fp = fopen(file, "rb")) != 0) {
delwin(NewScreen(SP_PARM));
NewScreen(SP_PARM) = getwin(fp);
#if !USE_REENTRANT
newscr = NewScreen(SP_PARM);
#endif
(void) fclose(fp);
if (NewScreen(SP_PARM) != 0) {
code = OK;
}
}
returnCode(code);
}
static void
write_file(char *filename, TERMTYPE *tp)
{
char buffer[MAX_ENTRY_SIZE];
unsigned limit = sizeof(buffer);
unsigned offset = 0;
FILE *fp = (_nc_access(filename, W_OK) == 0) ? fopen(filename, "wb") : 0;
if (fp == 0) {
perror(filename);
_nc_syserr_abort("can't open %s/%s", _nc_tic_dir(0), filename);
}
DEBUG(1, ("Created %s", filename));
if (write_object(tp, buffer, &offset, limit) == ERR
|| fwrite(buffer, sizeof(char), offset, fp) != offset) {
_nc_syserr_abort("error writing %s/%s", _nc_tic_dir(0), filename);
}
fclose(fp);
}
scr_init(const char *file)
{
FILE *fp = 0;
struct stat stb;
T((T_CALLED("scr_init(%s)"), _nc_visbuf(file)));
if (exit_ca_mode && non_rev_rmcup)
returnCode(ERR);
if (_nc_access(file, R_OK) < 0
|| (fp = fopen(file, "rb")) == 0)
returnCode(ERR);
else if (fstat(STDOUT_FILENO, &stb) || stb.st_mtime > dumptime)
returnCode(ERR);
else {
delwin(curscr);
curscr = getwin(fp);
(void) fclose(fp);
returnCode(OK);
}
}
NCURSES_SP_NAME(scr_init) (NCURSES_SP_DCLx const char *file)
{
FILE *fp = 0;
T((T_CALLED("scr_init(%s)"), _nc_visbuf(file)));
if (exit_ca_mode && non_rev_rmcup)
returnCode(ERR);
if (_nc_access(file, R_OK) < 0
|| (fp = fopen(file, "rb")) == 0) {
returnCode(ERR);
} else {
delwin(curscr);
SP_PARM->_curscr = getwin(fp);
#if !USE_REENTRANT
curscr = SP_PARM->_curscr;
#endif
(void) fclose(fp);
returnCode(OK);
}
}
/*
* Getent implements the functions of cgetent. If fd is non-negative,
* *db_array has already been opened and fd is the open file descriptor. We
* do this to save time and avoid using up file descriptors for tc=
* recursions.
*
* Getent returns the same success/failure codes as cgetent. On success, a
* pointer to a malloc'd capability record with all tc= capabilities fully
* expanded and its length (not including trailing ASCII NUL) are left in
* *cap and *len.
*
* Basic algorithm:
* + Allocate memory incrementally as needed in chunks of size BFRAG
* for capability buffer.
* + Recurse for each tc=name and interpolate result. Stop when all
* names interpolated, a name can't be found, or depth exceeds
* MAX_RECURSION.
*/
static int
_nc_getent(
char **cap, /* termcap-content */
unsigned int *len, /* length, needed for recursion */
int *beginning, /* line-number at match */
int in_array, /* index in 'db_array[] */
char **db_array, /* list of files to search */
int fd,
const char *name,
int depth,
char *nfield)
{
register char *r_end, *rp;
int myfd = FALSE;
char *record;
int tc_not_resolved;
int current;
int lineno;
/*
* Return with ``loop detected'' error if we've recurred more than
* MAX_RECURSION times.
*/
if (depth > MAX_RECURSION)
return (TC_REF_LOOP);
/*
* Check if we have a top record from cgetset().
*/
if (depth == 0 && toprec != 0 && _nc_cgetmatch(toprec, name) == 0) {
if ((record = malloc (topreclen + BFRAG)) == 0) {
errno = ENOMEM;
return (TC_SYS_ERR);
}
(void)strcpy(record, toprec);
rp = record + topreclen + 1;
r_end = rp + BFRAG;
current = in_array;
} else {
int foundit;
/*
* Allocate first chunk of memory.
*/
if ((record = malloc(BFRAG)) == 0) {
errno = ENOMEM;
return (TC_SYS_ERR);
}
rp = r_end = record + BFRAG;
foundit = FALSE;
/*
* Loop through database array until finding the record.
*/
for (current = in_array; db_array[current] != 0; current++) {
int eof = FALSE;
/*
* Open database if not already open.
*/
if (fd >= 0) {
(void)lseek(fd, (off_t)0, SEEK_SET);
} else if (_nc_access(db_array[current], R_OK) < 0
|| (fd = open(db_array[current], O_RDONLY, 0) < 0)) {
/* No error on unfound file. */
if (errno == ENOENT)
continue;
free(record);
return (TC_SYS_ERR);
} else {
myfd = TRUE;
}
lineno = 0;
/*
* Find the requested capability record ...
*/
{
char buf[2048];
register char *b_end = buf;
register char *bp = buf;
register int c;
/*
* Loop invariants:
* There is always room for one more character in record.
* R_end always points just past end of record.
* Rp always points just past last character in record.
* B_end always points just past last character in buf.
* Bp always points at next character in buf.
*/
for (;;) {
int first = lineno + 1;
/*
* Read in a line implementing (\, newline)
* line continuation.
*/
rp = record;
for (;;) {
if (bp >= b_end) {
int n;
n = read(fd, buf, sizeof(buf));
if (n <= 0) {
if (myfd)
(void)close(fd);
if (n < 0) {
free(record);
return (TC_SYS_ERR);
}
fd = -1;
eof = TRUE;
break;
}
b_end = buf+n;
bp = buf;
}
c = *bp++;
if (c == '\n') {
lineno++;
if (rp == record || *(rp-1) != '\\')
break;
}
*rp++ = c;
/*
* Enforce loop invariant: if no room
* left in record buffer, try to get
* some more.
*/
if (rp >= r_end) {
unsigned int pos;
size_t newsize;
char *nrecord;
pos = rp - record;
newsize = r_end - record + BFRAG;
nrecord = realloc(record, newsize);
if (nrecord == 0) {
if (record != 0)
free(nrecord);
if (myfd)
(void)close(fd);
errno = ENOMEM;
return (TC_SYS_ERR);
}
record = nrecord;
r_end = record + newsize;
rp = record + pos;
}
}
/* loop invariant lets us do this */
*rp++ = '\0';
/*
* If encountered eof check next file.
*/
if (eof)
break;
/*
* Toss blank lines and comments.
*/
if (*record == '\0' || *record == '#')
continue;
/*
* See if this is the record we want ...
*/
if (_nc_cgetmatch(record, name) == 0
&& (nfield == 0
|| !_nc_nfcmp(nfield, record))) {
foundit = TRUE;
*beginning = first;
break; /* found it! */
}
}
}
if (foundit)
break;
}
if (!foundit)
return (TC_NOT_FOUND);
}
/*
* Got the capability record, but now we have to expand all tc=name
* references in it ...
*/
{
register char *newicap, *s;
register int newilen;
unsigned int ilen;
int diff, iret, tclen, oline;
char *icap, *scan, *tc, *tcstart, *tcend;
/*
* Loop invariants:
* There is room for one more character in record.
* R_end points just past end of record.
* Rp points just past last character in record.
* Scan points at remainder of record that needs to be
* scanned for tc=name constructs.
*/
scan = record;
tc_not_resolved = FALSE;
for (;;) {
if ((tc = _nc_cgetcap(scan, "tc", '=')) == 0)
break;
/*
* Find end of tc=name and stomp on the trailing `:'
* (if present) so we can use it to call ourselves.
*/
s = tc;
while (*s != '\0') {
if (*s++ == ':') {
*(s - 1) = '\0';
break;
}
}
tcstart = tc - 3;
tclen = s - tcstart;
tcend = s;
iret = _nc_getent(&icap, &ilen, &oline, current, db_array, fd, tc, depth+1, 0);
newicap = icap; /* Put into a register. */
newilen = ilen;
if (iret != TC_SUCCESS) {
/* an error */
if (iret < TC_NOT_FOUND) {
if (myfd)
(void)close(fd);
free(record);
return (iret);
}
if (iret == TC_UNRESOLVED)
tc_not_resolved = TRUE;
/* couldn't resolve tc */
if (iret == TC_NOT_FOUND) {
*(s - 1) = ':';
scan = s - 1;
tc_not_resolved = TRUE;
continue;
}
}
/* not interested in name field of tc'ed record */
s = newicap;
while (*s != '\0' && *s++ != ':')
;
newilen -= s - newicap;
newicap = s;
/* make sure interpolated record is `:'-terminated */
s += newilen;
if (*(s-1) != ':') {
*s = ':'; /* overwrite NUL with : */
newilen++;
}
/*
* Make sure there's enough room to insert the
* new record.
*/
diff = newilen - tclen;
if (diff >= r_end - rp) {
unsigned int pos, tcpos, tcposend;
size_t newsize;
char *nrecord;
pos = rp - record;
newsize = r_end - record + diff + BFRAG;
tcpos = tcstart - record;
tcposend = tcend - record;
nrecord = realloc(record, newsize);
if (record == 0) {
if (record != 0)
free(record);
if (myfd)
(void)close(fd);
free(icap);
errno = ENOMEM;
return (TC_SYS_ERR);
}
record = nrecord;
r_end = record + newsize;
rp = record + pos;
tcstart = record + tcpos;
tcend = record + tcposend;
}
/*
* Insert tc'ed record into our record.
*/
s = tcstart + newilen;
memmove(s, tcend, (size_t)(rp - tcend));
memmove(tcstart, newicap, (size_t)newilen);
rp += diff;
free(icap);
/*
* Start scan on `:' so next cgetcap works properly
* (cgetcap always skips first field).
*/
scan = s-1;
}
}
/*
* Close file (if we opened it), give back any extra memory, and
* return capability, length and success.
*/
if (myfd)
(void)close(fd);
*len = rp - record - 1; /* don't count NUL */
if (r_end > rp) {
char *nrecord;
if ((nrecord = realloc(record, (size_t)(rp - record))) == 0) {
if (record != 0)
free(record);
errno = ENOMEM;
return (TC_SYS_ERR);
}
record = nrecord;
}
*cap = record;
if (tc_not_resolved)
return (TC_UNRESOLVED);
return (current);
}
int _nc_read_termcap_entry(const char *const tn, TERMTYPE *const tp)
{
int found = FALSE;
ENTRY *ep;
#if USE_GETCAP_CACHE
char cwd_buf[PATH_MAX];
#endif
#if USE_GETCAP
char tc[TBUFSIZ];
static char *source;
static int lineno;
/* we're using getcap(3) */
if (_nc_tgetent(tc, &source, &lineno, tn) < 0)
return (ERR);
_nc_curr_line = lineno;
_nc_set_source(source);
_nc_read_entry_source((FILE *)0, tc, FALSE, FALSE, NULLHOOK);
#else
/*
* Here is what the 4.4BSD termcap(3) page prescribes:
*
* It will look in the environment for a TERMCAP variable. If found,
* and the value does not begin with a slash, and the terminal type
* name is the same as the environment string TERM, the TERMCAP string
* is used instead of reading a termcap file. If it does begin with a
* slash, the string is used as a path name of the termcap file to
* search. If TERMCAP does not begin with a slash and name is
* different from TERM, tgetent() searches the files $HOME/.termcap and
* /usr/share/misc/termcap, in that order, unless the environment
* variable TERMPATH exists, in which case it specifies a list of file
* pathnames (separated by spaces or colons) to be searched instead.
*
* It goes on to state:
*
* Whenever multiple files are searched and a tc field occurs in the
* requested entry, the entry it names must be found in the same file
* or one of the succeeding files.
*
* However, this restriction is relaxed in ncurses; tc references to
* previous files are permitted.
*
* This routine returns 1 if an entry is found, 0 if not found, and -1
* if the database is not accessible.
*/
FILE *fp;
char *tc, *termpaths[MAXPATHS];
int filecount = 0;
bool use_buffer = FALSE;
char tc_buf[1024];
char pathbuf[PATH_MAX];
termpaths[filecount] = 0;
if ((tc = getenv("TERMCAP")) != 0)
{
if (is_pathname(tc)) /* interpret as a filename */
{
ADD_TC(tc, 0);
}
else if (_nc_name_match(tc, tn, "|:")) /* treat as a capability file */
{
use_buffer = TRUE;
(void) sprintf(tc_buf, "%.*s\n", (int)sizeof(tc_buf)-2, tc);
}
else if ((tc = getenv("TERMPATH")) != 0)
{
char *cp;
for (cp = tc; *cp; cp++)
{
if (*cp == ':')
*cp = '\0';
else if (cp == tc || cp[-1] == '\0')
{
ADD_TC(cp, filecount);
}
}
}
}
else /* normal case */
{
char envhome[PATH_MAX], *h;
filecount = 0;
/*
* Probably /etc/termcap is a symlink to /usr/share/misc/termcap.
* Avoid reading the same file twice.
*/
if (_nc_access("/etc/termcap", F_OK) == 0)
ADD_TC("/etc/termcap", filecount);
else
ADD_TC("/usr/share/misc/termcap", filecount);
if ((h = getenv("HOME")) != NULL && strlen(h) + 9 < PATH_MAX)
{
/* user's .termcap, if any, should override it */
(void) strcpy(envhome, h);
(void) sprintf(pathbuf, "%s/.termcap", envhome);
ADD_TC(pathbuf, filecount);
}
}
/* parse the sources */
if (use_buffer)
{
_nc_set_source("TERMCAP");
/*
* We don't suppress warning messages here. The presumption is
* that since it's just a single entry, they won't be a pain.
*/
_nc_read_entry_source((FILE *)0, tc_buf, FALSE, FALSE, NULLHOOK);
} else {
int i;
for (i = 0; i < filecount; i++) {
T(("Looking for %s in %s", tn, termpaths[i]));
if ((fp = fopen(termpaths[i], "r")) != (FILE *)0)
{
_nc_set_source(termpaths[i]);
/*
* Suppress warning messages. Otherwise you
* get 400 lines of crap from archaic termcap
* files as ncurses complains about all the
* obsolete capabilities.
*/
_nc_read_entry_source(fp, (char*)0, FALSE, TRUE, NULLHOOK);
(void) fclose(fp);
}
}
}
#endif /* USE_GETCAP */
if (_nc_head == 0)
return(ERR);
/* resolve all use references */
_nc_resolve_uses();
/* find a terminal matching tn, if we can */
#if USE_GETCAP_CACHE
if (getcwd(cwd_buf, sizeof(cwd_buf)) != 0)
{
_nc_set_writedir((char *)0); /* note: this does a chdir */
#endif
for_entry_list(ep) {
if (_nc_name_match(ep->tterm.term_names, tn, "|:"))
{
/*
* Make a local copy of the terminal
* capabilities. Free all entry storage except
* the string table for the loaded type (which
* we disconnected from the list by NULLing out
* ep->tterm.str_table above).
*/
memcpy(tp, &ep->tterm, sizeof(TERMTYPE));
ep->tterm.str_table = (char *)0;
/*
* OK, now try to write the type to user's
* terminfo directory. Next time he loads
* this, it will come through terminfo.
*
* Advantage: Second and subsequent fetches of
* this entry will be very fast.
*
* Disadvantage: After the first time a
* termcap type is loaded by its user, editing
* it in the /etc/termcap file, or in TERMCAP,
* or in a local ~/.termcap, will be
* ineffective unless the terminfo entry is
* explicitly removed.
*/
#if USE_GETCAP_CACHE
(void) _nc_write_entry(tp);
#endif
found = TRUE;
break;
}
}
#if USE_GETCAP_CACHE
chdir(cwd_buf);
}
void
_nc_write_entry(TERMTYPE * const tp)
{
struct stat statbuf;
char name_list[MAX_TERMINFO_LENGTH];
char *first_name, *other_names;
char *ptr;
char filename[PATH_MAX];
char linkname[PATH_MAX];
#if USE_SYMLINKS
char symlinkname[PATH_MAX];
#if !HAVE_LINK
#undef HAVE_LINK
#define HAVE_LINK 1
#endif
#endif /* USE_SYMLINKS */
static int call_count;
static time_t start_time; /* time at start of writes */
if (call_count++ == 0) {
start_time = 0;
}
(void) strcpy(name_list, tp->term_names);
DEBUG(7, ("Name list = '%s'", name_list));
first_name = name_list;
ptr = &name_list[strlen(name_list) - 1];
other_names = ptr + 1;
while (ptr > name_list && *ptr != '|')
ptr--;
if (ptr != name_list) {
*ptr = '\0';
for (ptr = name_list; *ptr != '\0' && *ptr != '|'; ptr++)
continue;
if (*ptr == '\0')
other_names = ptr;
else {
*ptr = '\0';
other_names = ptr + 1;
}
}
DEBUG(7, ("First name = '%s'", first_name));
DEBUG(7, ("Other names = '%s'", other_names));
_nc_set_type(first_name);
if (strlen(first_name) > sizeof(filename) - 3)
_nc_warning("terminal name too long.");
sprintf(filename, "%c/%s", first_name[0], first_name);
/*
* Has this primary name been written since the first call to
* write_entry()? If so, the newer write will step on the older,
* so warn the user.
*/
if (start_time > 0 &&
stat(filename, &statbuf) >= 0
&& statbuf.st_mtime >= start_time) {
_nc_warning("name multiply defined.");
}
check_writeable(first_name[0]);
write_file(filename, tp);
if (start_time == 0) {
if (stat(filename, &statbuf) < 0
|| (start_time = statbuf.st_mtime) == 0) {
_nc_syserr_abort("error obtaining time from %s/%s",
_nc_tic_dir(0), filename);
}
}
while (*other_names != '\0') {
ptr = other_names++;
while (*other_names != '|' && *other_names != '\0')
other_names++;
if (*other_names != '\0')
*(other_names++) = '\0';
if (strlen(ptr) > sizeof(linkname) - 3) {
_nc_warning("terminal alias %s too long.", ptr);
continue;
}
if (strchr(ptr, '/') != 0) {
_nc_warning("cannot link alias %s.", ptr);
continue;
}
check_writeable(ptr[0]);
sprintf(linkname, "%c/%s", ptr[0], ptr);
if (strcmp(filename, linkname) == 0) {
_nc_warning("self-synonym ignored");
} else if (stat(linkname, &statbuf) >= 0 &&
statbuf.st_mtime < start_time) {
_nc_warning("alias %s multiply defined.", ptr);
} else if (_nc_access(linkname, W_OK) == 0)
#if HAVE_LINK
{
int code;
#if USE_SYMLINKS
strcpy(symlinkname, "../");
strncat(symlinkname, filename, sizeof(symlinkname) - 4);
symlinkname[sizeof(symlinkname) - 1] = '\0';
#endif /* USE_SYMLINKS */
#if HAVE_REMOVE
code = remove(linkname);
#else
code = unlink(linkname);
#endif
if (code != 0 && errno == ENOENT)
code = 0;
#if USE_SYMLINKS
if (symlink(symlinkname, linkname) < 0)
#else
if (link(filename, linkname) < 0)
#endif /* USE_SYMLINKS */
{
/*
* If there wasn't anything there, and we cannot
* link to the target because it is the same as the
* target, then the source must be on a filesystem
* that uses caseless filenames, such as Win32, etc.
*/
if (code == 0 && errno == EEXIST)
_nc_warning("can't link %s to %s", filename, linkname);
else if (code == 0 && (errno == EPERM || errno == ENOENT))
write_file(linkname, tp);
else {
#if MIXEDCASE_FILENAMES
_nc_syserr_abort("can't link %s to %s", filename, linkname);
#else
_nc_warning("can't link %s to %s (errno=%d)", filename,
linkname, errno);
#endif
}
} else {
DEBUG(1, ("Linked %s", linkname));
}
}
#else /* just make copies */
write_file(linkname, tp);
#endif /* HAVE_LINK */
}
}
_nc_write_entry(TERMTYPE *const tp)
{
#if USE_HASHED_DB
char buffer[MAX_ENTRY_SIZE + 1];
unsigned limit = sizeof(buffer);
unsigned offset = 0;
#else /* !USE_HASHED_DB */
struct stat statbuf;
char filename[PATH_MAX];
char linkname[PATH_MAX];
#if USE_SYMLINKS
char symlinkname[PATH_MAX];
#if !HAVE_LINK
#undef HAVE_LINK
#define HAVE_LINK 1
#endif
#endif /* USE_SYMLINKS */
static int call_count;
static time_t start_time; /* time at start of writes */
#endif /* USE_HASHED_DB */
char name_list[MAX_TERMINFO_LENGTH];
char *first_name, *other_names;
char *ptr;
assert(strlen(tp->term_names) != 0);
assert(strlen(tp->term_names) < sizeof(name_list));
(void) strlcpy(name_list, tp->term_names, sizeof(name_list));
DEBUG(7, ("Name list = '%s'", name_list));
first_name = name_list;
ptr = &name_list[strlen(name_list) - 1];
other_names = ptr + 1;
while (ptr > name_list && *ptr != '|')
ptr--;
if (ptr != name_list) {
*ptr = '\0';
for (ptr = name_list; *ptr != '\0' && *ptr != '|'; ptr++)
continue;
if (*ptr == '\0')
other_names = ptr;
else {
*ptr = '\0';
other_names = ptr + 1;
}
}
DEBUG(7, ("First name = '%s'", first_name));
DEBUG(7, ("Other names = '%s'", other_names));
_nc_set_type(first_name);
#if USE_HASHED_DB
if (write_object(tp, buffer + 1, &offset, limit - 1) != ERR) {
DB *capdb = _nc_db_open(_nc_tic_dir(0), TRUE);
DBT key, data;
if (capdb != 0) {
buffer[0] = 0;
memset(&key, 0, sizeof(key));
key.data = tp->term_names;
key.size = strlen(tp->term_names);
memset(&data, 0, sizeof(data));
data.data = buffer;
data.size = offset + 1;
_nc_db_put(capdb, &key, &data);
buffer[0] = 2;
key.data = name_list;
key.size = strlen(name_list);
strlcpy(buffer + 1, tp->term_names, sizeof(buffer) - 1);
data.size = strlen(tp->term_names) + 1;
_nc_db_put(capdb, &key, &data);
while (*other_names != '\0') {
ptr = other_names++;
while (*other_names != '|' && *other_names != '\0')
other_names++;
if (*other_names != '\0')
*(other_names++) = '\0';
key.data = ptr;
key.size = strlen(ptr);
_nc_db_put(capdb, &key, &data);
}
_nc_db_close(capdb);
}
}
#else /* !USE_HASHED_DB */
if (call_count++ == 0) {
start_time = 0;
}
if (strlen(first_name) >= sizeof(filename) - 3)
_nc_warning("terminal name too long.");
snprintf(filename, sizeof(filename), LEAF_FMT "/%s", first_name[0], first_name);
/*
* Has this primary name been written since the first call to
* write_entry()? If so, the newer write will step on the older,
* so warn the user.
*/
if (start_time > 0 &&
stat(filename, &statbuf) >= 0
&& statbuf.st_mtime >= start_time) {
_nc_warning("name multiply defined.");
}
check_writeable(first_name[0]);
write_file(filename, tp);
if (start_time == 0) {
if (stat(filename, &statbuf) < 0
|| (start_time = statbuf.st_mtime) == 0) {
_nc_syserr_abort("error obtaining time from %s/%s",
_nc_tic_dir(0), filename);
}
}
while (*other_names != '\0') {
ptr = other_names++;
assert(ptr < buffer + sizeof(buffer) - 1);
while (*other_names != '|' && *other_names != '\0')
other_names++;
if (*other_names != '\0')
*(other_names++) = '\0';
if (strlen(ptr) > sizeof(linkname) - 3) {
_nc_warning("terminal alias %s too long.", ptr);
continue;
}
if (strchr(ptr, '/') != 0) {
_nc_warning("cannot link alias %s.", ptr);
continue;
}
check_writeable(ptr[0]);
snprintf(linkname, sizeof(linkname), LEAF_FMT "/%s", ptr[0], ptr);
if (strcmp(filename, linkname) == 0) {
_nc_warning("self-synonym ignored");
} else if (stat(linkname, &statbuf) >= 0 &&
statbuf.st_mtime < start_time) {
_nc_warning("alias %s multiply defined.", ptr);
} else if (_nc_access(linkname, W_OK) == 0)
#if HAVE_LINK
{
int code;
#if USE_SYMLINKS
strlcpy(symlinkname, "../", sizeof(symlinkname));
strlcat(symlinkname, filename, sizeof(symlinkname));
#endif /* USE_SYMLINKS */
#if HAVE_REMOVE
code = remove(linkname);
#else
code = unlink(linkname);
#endif
if (code != 0 && errno == ENOENT)
code = 0;
#if USE_SYMLINKS
if (symlink(symlinkname, linkname) < 0)
#else
if (link(filename, linkname) < 0)
#endif /* USE_SYMLINKS */
{
/*
* If there wasn't anything there, and we cannot
* link to the target because it is the same as the
* target, then the source must be on a filesystem
* that uses caseless filenames, such as Win32, etc.
*/
if (code == 0 && errno == EEXIST)
_nc_warning("can't link %s to %s", filename, linkname);
else if (code == 0 && (errno == EPERM || errno == ENOENT))
write_file(linkname, tp);
else {
#if MIXEDCASE_FILENAMES
_nc_syserr_abort("can't link %s to %s", filename, linkname);
#else
_nc_warning("can't link %s to %s (errno=%d)", filename,
linkname, errno);
#endif
}
} else {
DEBUG(1, ("Linked %s", linkname));
}
}
#else /* just make copies */
write_file(linkname, tp);
#endif /* HAVE_LINK */
}
#endif /* USE_HASHED_DB */
}
