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Diffstat (limited to 'ncurses/tinfo/read_termcap.c')
-rw-r--r--ncurses/tinfo/read_termcap.c78
1 files changed, 39 insertions, 39 deletions
diff --git a/ncurses/tinfo/read_termcap.c b/ncurses/tinfo/read_termcap.c
index 1a294848b827..e9a0faadffcf 100644
--- a/ncurses/tinfo/read_termcap.c
+++ b/ncurses/tinfo/read_termcap.c
@@ -1,5 +1,5 @@
/****************************************************************************
- * Copyright 2018-2021,2023 Thomas E. Dickey *
+ * Copyright 2018-2023,2025 Thomas E. Dickey *
* Copyright 1998-2016,2017 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
@@ -57,7 +57,7 @@
#include <sys/types.h>
#include <tic.h>
-MODULE_ID("$Id: read_termcap.c,v 1.104 2023/06/24 21:53:16 tom Exp $")
+MODULE_ID("$Id: read_termcap.c,v 1.107 2025/12/25 18:20:22 tom Exp $")
#if !PURE_TERMINFO
@@ -72,7 +72,7 @@ get_termpath(void)
{
const char *result;
- if (!use_terminfo_vars() || (result = getenv("TERMPATH")) == 0)
+ if (!use_terminfo_vars() || (result = getenv("TERMPATH")) == NULL)
result = TERMPATH;
TR(TRACE_DATABASE, ("TERMPATH is %s", result));
return result;
@@ -275,7 +275,7 @@ _nc_getent(
{
register char *r_end, *rp;
int myfd = FALSE;
- char *record = 0;
+ char *record = NULL;
int tc_not_resolved;
int current;
int lineno;
@@ -291,7 +291,7 @@ _nc_getent(
* Check if we have a top record from cgetset().
*/
if (depth == 0 && toprec != 0 && _nc_cgetmatch(toprec, name) == 0) {
- if ((record = DOALLOC(topreclen + BFRAG)) == 0) {
+ if ((record = DOALLOC(topreclen + BFRAG)) == NULL) {
errno = ENOMEM;
return (TC_SYS_ERR);
}
@@ -305,7 +305,7 @@ _nc_getent(
/*
* Allocate first chunk of memory.
*/
- if ((record = DOALLOC(BFRAG)) == 0) {
+ if ((record = DOALLOC(BFRAG)) == NULL) {
errno = ENOMEM;
return (TC_SYS_ERR);
}
@@ -315,7 +315,7 @@ _nc_getent(
/*
* Loop through database array until finding the record.
*/
- for (current = in_array; db_array[current] != 0; current++) {
+ for (current = in_array; db_array[current] != NULL; current++) {
int eof = FALSE;
/*
@@ -408,7 +408,7 @@ _nc_getent(
pos = (unsigned) (rp - record);
newsize = (size_t) (r_end - record + BFRAG);
record = DOALLOC(newsize);
- if (record == 0) {
+ if (record == NULL) {
if (myfd)
(void) close(fd);
errno = ENOMEM;
@@ -464,7 +464,7 @@ _nc_getent(
register int newilen;
unsigned ilen;
int diff, iret, tclen, oline;
- char *icap = 0, *scan, *tc, *tcstart, *tcend;
+ char *icap = NULL, *scan, *tc, *tcstart, *tcend;
/*
* Loop invariants:
@@ -477,7 +477,7 @@ _nc_getent(
scan = record;
tc_not_resolved = FALSE;
for (;;) {
- if ((tc = _nc_cgetcap(scan, "tc", '=')) == 0) {
+ if ((tc = _nc_cgetcap(scan, "tc", '=')) == NULL) {
break;
}
@@ -548,7 +548,7 @@ _nc_getent(
tcpos = (unsigned) (tcstart - record);
tcposend = (unsigned) (tcend - record);
record = DOALLOC(newsize);
- if (record == 0) {
+ if (record == NULL) {
if (myfd)
(void) close(fd);
free(icap);
@@ -586,7 +586,7 @@ _nc_getent(
(void) close(fd);
*len = (unsigned) (rp - record - 1); /* don't count NUL */
if (r_end > rp) {
- if ((record = DOALLOC((size_t) (rp - record))) == 0) {
+ if ((record = DOALLOC((size_t) (rp - record))) == NULL) {
errno = ENOMEM;
return (TC_SYS_ERR);
}
@@ -720,7 +720,7 @@ get_tc_token(char **srcp, int *endp)
int ch;
bool found = FALSE;
char *s, *base;
- char *tok = 0;
+ char *tok = NULL;
*endp = TRUE;
for (s = base = *srcp; *s != '\0';) {
@@ -749,7 +749,7 @@ get_tc_token(char **srcp, int *endp)
}
/* malformed entry may end without a ':' */
- if (tok == 0 && found) {
+ if (tok == NULL && found) {
tok = base;
}
@@ -768,7 +768,7 @@ copy_tc_token(char *dst, const char *src, size_t len)
continue;
}
if (--len == 0) {
- dst = 0;
+ dst = NULL;
break;
}
*dst++ = (char) ch;
@@ -813,13 +813,13 @@ _nc_tgetent(char *bp, char **sourcename, int *lineno, const char *name)
if (cp == NULL) {
_nc_safe_strcpy(&desc, get_termpath());
} else if (!_nc_is_abs_path(cp)) { /* TERMCAP holds an entry */
- if ((termpath = get_termpath()) != 0) {
+ if ((termpath = get_termpath()) != NULL) {
_nc_safe_strcat(&desc, termpath);
} else {
char temp[PBUFSIZ];
temp[0] = 0;
- if ((home = getenv("HOME")) != 0 && *home != '\0'
- && strchr(home, ' ') == 0
+ if ((home = getenv("HOME")) != NULL && *home != '\0'
+ && strchr(home, ' ') == NULL
&& strlen(home) < sizeof(temp) - 10) { /* setup path */
_nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp))
"%s/", home); /* $HOME first */
@@ -850,7 +850,7 @@ _nc_tgetent(char *bp, char **sourcename, int *lineno, const char *name)
}
}
}
- *fname = 0; /* mark end of vector */
+ *fname = NULL; /* mark end of vector */
#if !HAVE_BSD_CGETENT
(void) _nc_cgetset(0);
#endif
@@ -875,7 +875,7 @@ _nc_tgetent(char *bp, char **sourcename, int *lineno, const char *name)
pd = bp;
ps = dummy;
- while (!endflag && (tok = get_tc_token(&ps, &endflag)) != 0) {
+ while (!endflag && (tok = get_tc_token(&ps, &endflag)) != NULL) {
bool ignore = FALSE;
for (n = 1; n < count; n++) {
@@ -889,7 +889,7 @@ _nc_tgetent(char *bp, char **sourcename, int *lineno, const char *name)
if (ignore != TRUE) {
list[count++] = tok;
pd = copy_tc_token(pd, tok, (size_t) (TBUFSIZ - (2 + pd - bp)));
- if (pd == 0) {
+ if (pd == NULL) {
i = -1;
break;
}
@@ -901,7 +901,7 @@ _nc_tgetent(char *bp, char **sourcename, int *lineno, const char *name)
FreeIfNeeded(dummy);
FreeIfNeeded(the_source);
- the_source = 0;
+ the_source = NULL;
/* This is not related to the BSD cgetent(), but to fake up a suitable
* filename for ncurses' error reporting. (If we are not using BSD
@@ -917,10 +917,10 @@ _nc_tgetent(char *bp, char **sourcename, int *lineno, const char *name)
if (_nc_access(temp, R_OK) == 0) {
_nc_safe_strcpy(&desc, pathvec[i]);
}
- if ((the_source = strdup(temp)) != 0)
+ if ((the_source = strdup(temp)) != NULL)
*sourcename = the_source;
#else
- if ((the_source = strdup(pathvec[i])) != 0)
+ if ((the_source = strdup(pathvec[i])) != NULL)
*sourcename = the_source;
#endif
}
@@ -941,7 +941,7 @@ static int
add_tc(char *termpaths[], char *path, int count)
{
char *save = strchr(path, NCURSES_PATHSEP);
- if (save != 0)
+ if (save != NULL)
*save = '\0';
if (count < MAXPATHS
&& _nc_access(path, R_OK) == 0) {
@@ -949,7 +949,7 @@ add_tc(char *termpaths[], char *path, int count)
TR(TRACE_DATABASE, ("Adding termpath %s", path));
}
termpaths[count] = 0;
- if (save != 0)
+ if (save != NULL)
*save = NCURSES_PATHSEP;
return count;
}
@@ -966,7 +966,7 @@ _nc_read_termcap_entry(const char *const tn, TERMTYPE2 *const tp)
#endif
#if USE_GETCAP
char *p, tc[TBUFSIZ];
- char *tc_buf = 0;
+ char *tc_buf = NULL;
#define MY_SIZE sizeof(tc) - 1
int status;
static char *source;
@@ -982,7 +982,7 @@ _nc_read_termcap_entry(const char *const tn, TERMTYPE2 *const tp)
return TGETENT_NO;
}
- if (use_terminfo_vars() && (p = getenv("TERMCAP")) != 0
+ if (use_terminfo_vars() && (p = getenv("TERMCAP")) != NULL
&& !_nc_is_abs_path(p) && _nc_name_match(p, tn, "|:")) {
/* TERMCAP holds a termcap entry */
tc_buf = strdup(p);
@@ -996,7 +996,7 @@ _nc_read_termcap_entry(const char *const tn, TERMTYPE2 *const tp)
_nc_set_source(source);
tc_buf = tc;
}
- if (tc_buf == 0)
+ if (tc_buf == NULL)
return (TGETENT_ERR);
_nc_read_entry_source((FILE *) 0, tc_buf, FALSE, TRUE, NULLHOOK);
if (tc_buf != tc)
@@ -1034,20 +1034,20 @@ _nc_read_termcap_entry(const char *const tn, TERMTYPE2 *const tp)
int j, k;
bool use_buffer = FALSE;
bool normal = TRUE;
- char *tc_buf = 0;
+ char *tc_buf = NULL;
char pathbuf[PATH_MAX];
- char *copied = 0;
+ char *copied = NULL;
char *cp;
struct stat test_stat[MAXPATHS];
- termpaths[filecount] = 0;
- if (use_terminfo_vars() && (tc = getenv("TERMCAP")) != 0) {
+ termpaths[filecount] = NULL;
+ if (use_terminfo_vars() && (tc = getenv("TERMCAP")) != NULL) {
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 */
tc_buf = strdup(tc);
- use_buffer = (tc_buf != 0);
+ use_buffer = (tc_buf != NULL);
normal = FALSE;
}
}
@@ -1055,7 +1055,7 @@ _nc_read_termcap_entry(const char *const tn, TERMTYPE2 *const tp)
if (normal) { /* normal case */
char envhome[PATH_MAX], *h;
- if ((copied = strdup(get_termpath())) != 0) {
+ if ((copied = strdup(get_termpath())) != NULL) {
for (cp = copied; *cp; cp++) {
if (*cp == NCURSES_PATHSEP)
*cp = '\0';
@@ -1085,7 +1085,7 @@ _nc_read_termcap_entry(const char *const tn, TERMTYPE2 *const tp)
#if HAVE_LINK
for (j = 0; j < filecount; j++) {
bool omit = FALSE;
- if (stat(termpaths[j], &test_stat[j]) != 0
+ if (!_nc_is_path_found(termpaths[j], &test_stat[j])
|| !S_ISREG(test_stat[j].st_mode)) {
omit = TRUE;
} else {
@@ -1140,11 +1140,11 @@ _nc_read_termcap_entry(const char *const tn, TERMTYPE2 *const tp)
}
}
}
- if (copied != 0)
+ if (copied != NULL)
free(copied);
#endif /* USE_GETCAP */
- if (_nc_head == 0)
+ if (_nc_head == NULL)
return (TGETENT_ERR);
/* resolve all use references */
@@ -1153,7 +1153,7 @@ _nc_read_termcap_entry(const char *const tn, TERMTYPE2 *const tp)
/* find a terminal matching tn, if we can */
#if USE_GETCAP_CACHE
- if (getcwd(cwd_buf, sizeof(cwd_buf)) != 0) {
+ if (getcwd(cwd_buf, sizeof(cwd_buf)) != NULL) {
_nc_set_writedir((char *) 0); /* note: this does a chdir */
#endif
for_entry_list(ep) {
generated by cgit v1.2.3 (git 2.25.1) at 2026-01-19 09:33:02 +0000