/****************************************************************************
- * Copyright (c) 1998,1999,2000,2001 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2010,2011 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Thomas E. Dickey 1996-on *
****************************************************************************/
/*
#include <ctype.h>
#include <sys/types.h>
-#include <sys/stat.h>
#include <tic.h>
-#include <term_entry.h>
-MODULE_ID("$Id: read_termcap.c,v 1.58 2001/10/28 01:11:34 tom Exp $")
+MODULE_ID("$Id: read_termcap.c,v 1.81 2011/08/07 18:56:35 tom Exp $")
#if !PURE_TERMINFO
-#ifdef __EMX__
-#define is_pathname(s) ((((s) != 0) && ((s)[0] == '/')) \
- || (((s)[0] != 0) && ((s)[1] == ':')))
-#else
-#define is_pathname(s) ((s) != 0 && (s)[0] == '/')
-#endif
-
#define TC_SUCCESS 0
-#define TC_UNRESOLVED -1
-#define TC_NOT_FOUND -2
-#define TC_SYS_ERR -3
-#define TC_REF_LOOP -4
+#define TC_NOT_FOUND -1
+#define TC_SYS_ERR -2
+#define TC_REF_LOOP -3
+#define TC_UNRESOLVED -4 /* this is not returned by BSD cgetent */
-static char *
+static NCURSES_CONST char *
get_termpath(void)
{
- char *result;
+ NCURSES_CONST char *result;
if (!use_terminfo_vars() || (result = getenv("TERMPATH")) == 0)
result = TERMPATH;
return result;
}
+/*
+ * Note:
+ * getcap(), cgetent(), etc., are BSD functions. A copy of those was added to
+ * this file in November 1995, derived from the BSD4.4 Lite sources.
+ *
+ * The initial adaptation uses 518 lines from that source.
+ * The current source (in 2009) uses 183 lines of BSD4.4 Lite (441 ignoring
+ * whitespace).
+ */
#if USE_GETCAP
#if HAVE_BSD_CGETENT
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgment:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* Returns:
*
* positive # on success (i.e., the index in db_array)
- * TC_UNRESOLVED if we had too many recurrences to resolve
* TC_NOT_FOUND if the requested record couldn't be found
* TC_SYS_ERR if a system error was encountered (e.g.,couldn't open a file)
* TC_REF_LOOP if a potential reference loop is detected
+ * TC_UNRESOLVED if we had too many recurrences to resolve
*/
static int
_nc_cgetent(char **buf, int *oline, char **db_array, const char *name)
break;
}
- if (!foundit)
+ if (!foundit) {
+ free(record);
return (TC_NOT_FOUND);
+ }
}
/*
register int newilen;
unsigned ilen;
int diff, iret, tclen, oline;
- char *icap, *scan, *tc, *tcstart, *tcend;
+ char *icap = 0, *scan, *tc, *tcstart, *tcend;
/*
* Loop invariants:
scan = record;
tc_not_resolved = FALSE;
for (;;) {
- if ((tc = _nc_cgetcap(scan, "tc", '=')) == 0)
+ if ((tc = _nc_cgetcap(scan, "tc", '=')) == 0) {
break;
+ }
/*
* Find end of tc=name and stomp on the trailing `:'
tclen = s - tcstart;
tcend = s;
+ icap = 0;
iret = _nc_getent(&icap, &ilen, &oline, current, db_array, fd,
tc, depth + 1, 0);
newicap = icap; /* Put into a register. */
if (myfd)
(void) close(fd);
free(record);
+ FreeIfNeeded(icap);
return (iret);
}
- if (iret == TC_UNRESOLVED)
+ if (iret == TC_UNRESOLVED) {
tc_not_resolved = TRUE;
- /* couldn't resolve tc */
- if (iret == TC_NOT_FOUND) {
+ /* couldn't resolve tc */
+ } else if (iret == TC_NOT_FOUND) {
*(s - 1) = ':';
scan = s - 1;
tc_not_resolved = TRUE;
}
*cap = record;
- if (tc_not_resolved)
+ if (tc_not_resolved) {
return (TC_UNRESOLVED);
+ }
return (current);
}
if (*s == '\0') {
break;
} else if (*s++ == '\n') {
- while (isspace(*s))
+ while (isspace(UChar(*s)))
s++;
} else {
found = TRUE;
break;
}
base = s;
- } else if (isgraph(ch)) {
+ } else if (isgraph(UChar(ch))) {
found = TRUE;
}
}
while ((ch = *src++) != '\0') {
if (ch == '\\' && *src == '\n') {
- while (isspace(*src))
+ while (isspace(UChar(*src)))
src++;
continue;
}
register char *p;
register char *cp;
char *dummy = NULL;
- char **fname;
+ const char **fname;
char *home;
int i;
char pathbuf[PBUFSIZ]; /* holds raw path of filenames */
- char *pathvec[PVECSIZ]; /* to point to names in pathbuf */
- char **pvec; /* holds usable tail of path vector */
- char *termpath;
+ CGETENT_CONST char *pathvec[PVECSIZ]; /* point to names in pathbuf */
+ CGETENT_CONST char **pvec; /* holds usable tail of path vector */
+ NCURSES_CONST char *termpath;
string_desc desc;
+ *lineno = 1;
fname = pathvec;
pvec = pathvec;
tbuf = bp;
_nc_str_init(&desc, pathbuf, sizeof(pathbuf));
if (cp == NULL) {
_nc_safe_strcpy(&desc, get_termpath());
- } else if (!is_pathname(cp)) { /* TERMCAP holds an entry */
+ } else if (!_nc_is_abs_path(cp)) { /* TERMCAP holds an entry */
if ((termpath = get_termpath()) != 0) {
_nc_safe_strcat(&desc, termpath);
} else {
}
}
*fname = 0; /* mark end of vector */
- if (is_pathname(cp)) {
+#if !HAVE_BSD_CGETENT
+ (void) _nc_cgetset(0);
+#endif
+ if (_nc_is_abs_path(cp)) {
if (_nc_cgetset(cp) < 0) {
return (TC_SYS_ERR);
}
* cgetent, then it is the actual filename).
*/
if (i >= 0) {
+#if HAVE_BSD_CGETENT
+ char temp[PATH_MAX];
+
+ _nc_str_init(&desc, temp, sizeof(temp));
+ _nc_safe_strcpy(&desc, pathvec[i]);
+ _nc_safe_strcat(&desc, ".db");
+ if (_nc_access(temp, R_OK) == 0) {
+ _nc_safe_strcpy(&desc, pathvec[i]);
+ }
+ if ((the_source = strdup(temp)) != 0)
+ *sourcename = the_source;
+#else
if ((the_source = strdup(pathvec[i])) != 0)
*sourcename = the_source;
+#endif
}
return (i);
#endif /* !USE_GETCAP */
NCURSES_EXPORT(int)
-_nc_read_termcap_entry(const char *const tn, TERMTYPE * const tp)
+_nc_read_termcap_entry(const char *const tn, TERMTYPE *const tp)
{
- int found = FALSE;
+ int found = TGETENT_NO;
ENTRY *ep;
#if USE_GETCAP_CACHE
char cwd_buf[PATH_MAX];
#endif
#if USE_GETCAP
char *p, tc[TBUFSIZ];
+ int status;
static char *source;
static int lineno;
T(("read termcap entry for %s", tn));
+
+ if (strlen(tn) == 0
+ || strcmp(tn, ".") == 0
+ || strcmp(tn, "..") == 0
+ || _nc_pathlast(tn) != 0) {
+ T(("illegal or missing entry name '%s'", tn));
+ return TGETENT_NO;
+ }
+
if (use_terminfo_vars() && (p = getenv("TERMCAP")) != 0
- && !is_pathname(p) && _nc_name_match(p, tn, "|:")) {
+ && !_nc_is_abs_path(p) && _nc_name_match(p, tn, "|:")) {
/* TERMCAP holds a termcap entry */
strncpy(tc, p, sizeof(tc) - 1);
tc[sizeof(tc) - 1] = '\0';
_nc_set_source("TERMCAP");
} else {
/* we're using getcap(3) */
- if (_nc_tgetent(tc, &source, &lineno, tn) < 0)
- return (ERR);
+ if ((status = _nc_tgetent(tc, &source, &lineno, tn)) < 0)
+ return (status == TC_NOT_FOUND ? TGETENT_NO : TGETENT_ERR);
_nc_curr_line = lineno;
_nc_set_source(source);
}
- _nc_read_entry_source((FILE *) 0, tc, FALSE, FALSE, NULLHOOK);
+ _nc_read_entry_source((FILE *) 0, tc, FALSE, TRUE, NULLHOOK);
#else
/*
* Here is what the 4.4BSD termcap(3) page prescribes:
termpaths[filecount] = 0;
if (use_terminfo_vars() && (tc = getenv("TERMCAP")) != 0) {
- if (is_pathname(tc)) { /* interpret as a filename */
+ if (_nc_is_abs_path(tc)) { /* interpret as a filename */
ADD_TC(tc, 0);
normal = FALSE;
} else if (_nc_name_match(tc, tn, "|:")) { /* treat as a capability file */
* Probably /etc/termcap is a symlink to /usr/share/misc/termcap.
* Avoid reading the same file twice.
*/
-#ifdef HAVE_LINK
+#if HAVE_LINK
for (j = 0; j < filecount; j++) {
bool omit = FALSE;
if (stat(termpaths[j], &test_stat[j]) != 0
- || (test_stat[j].st_mode & S_IFMT) != S_IFREG) {
+ || !S_ISREG(test_stat[j].st_mode)) {
omit = TRUE;
} else {
for (k = 0; k < j; k++) {
#endif /* USE_GETCAP */
if (_nc_head == 0)
- return (ERR);
+ return (TGETENT_ERR);
/* resolve all use references */
- _nc_resolve_uses(TRUE);
+ _nc_resolve_uses2(TRUE, FALSE);
/* find a terminal matching tn, if we can */
#if USE_GETCAP_CACHE
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).
+ * Make a local copy of the terminal capabilities, delinked
+ * from the list.
*/
*tp = ep->tterm;
- ep->tterm.str_table = (char *) 0;
+ _nc_delink_entry(_nc_head, &(ep->tterm));
+ free(ep);
/*
* OK, now try to write the type to user's terminfo directory.
#if USE_GETCAP_CACHE
(void) _nc_write_entry(tp);
#endif
- found = TRUE;
+ found = TGETENT_YES;
break;
}
}
}
#endif
- _nc_free_entries(_nc_head);
return (found);
}
#else
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