svn commit: r213366 - stable/8/bin/sh
Jilles Tjoelker
jilles at FreeBSD.org
Sat Oct 2 20:39:46 UTC 2010
Author: jilles
Date: Sat Oct 2 20:39:45 2010
New Revision: 213366
URL: http://svn.freebsd.org/changeset/base/213366
Log:
MFC r200956: sh: Constify various strings.
Most of this is adding const keywords, but setvar() in var.c had to be
changed somewhat more.
Modified:
stable/8/bin/sh/alias.c
stable/8/bin/sh/alias.h
stable/8/bin/sh/arith.h
stable/8/bin/sh/arith.y
stable/8/bin/sh/cd.c
stable/8/bin/sh/exec.c
stable/8/bin/sh/exec.h
stable/8/bin/sh/expand.c
stable/8/bin/sh/expand.h
stable/8/bin/sh/histedit.c
stable/8/bin/sh/input.c
stable/8/bin/sh/input.h
stable/8/bin/sh/mail.c
stable/8/bin/sh/main.c
stable/8/bin/sh/main.h
stable/8/bin/sh/memalloc.c
stable/8/bin/sh/memalloc.h
stable/8/bin/sh/myhistedit.h
stable/8/bin/sh/options.c
stable/8/bin/sh/options.h
stable/8/bin/sh/output.c
stable/8/bin/sh/output.h
stable/8/bin/sh/parser.c
stable/8/bin/sh/parser.h
stable/8/bin/sh/show.c
stable/8/bin/sh/show.h
stable/8/bin/sh/var.c
stable/8/bin/sh/var.h
Directory Properties:
stable/8/bin/sh/ (props changed)
Modified: stable/8/bin/sh/alias.c
==============================================================================
--- stable/8/bin/sh/alias.c Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/alias.c Sat Oct 2 20:39:45 2010 (r213366)
@@ -52,13 +52,13 @@ __FBSDID("$FreeBSD$");
STATIC struct alias *atab[ATABSIZE];
STATIC int aliases;
-STATIC void setalias(char *, char *);
+STATIC void setalias(const char *, const char *);
STATIC int unalias(const char *);
STATIC struct alias **hashalias(const char *);
STATIC
void
-setalias(char *name, char *val)
+setalias(const char *name, const char *val)
{
struct alias *ap, **app;
@@ -176,7 +176,7 @@ rmaliases(void)
}
struct alias *
-lookupalias(char *name, int check)
+lookupalias(const char *name, int check)
{
struct alias *ap = *hashalias(name);
Modified: stable/8/bin/sh/alias.h
==============================================================================
--- stable/8/bin/sh/alias.h Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/alias.h Sat Oct 2 20:39:45 2010 (r213366)
@@ -42,7 +42,7 @@ struct alias {
int flag;
};
-struct alias *lookupalias(char *, int);
+struct alias *lookupalias(const char *, int);
int aliascmd(int, char **);
int unaliascmd(int, char **);
void rmaliases(void);
Modified: stable/8/bin/sh/arith.h
==============================================================================
--- stable/8/bin/sh/arith.h Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/arith.h Sat Oct 2 20:39:45 2010 (r213366)
@@ -34,8 +34,8 @@
#define DIGITS(var) (3 + (2 + CHAR_BIT * sizeof((var))) / 3)
-extern char *arith_buf, *arith_startbuf;
+extern const char *arith_buf, *arith_startbuf;
-arith_t arith(char *);
+arith_t arith(const char *);
void arith_lex_reset(void);
int expcmd(int, char **);
Modified: stable/8/bin/sh/arith.y
==============================================================================
--- stable/8/bin/sh/arith.y Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/arith.y Sat Oct 2 20:39:45 2010 (r213366)
@@ -265,7 +265,7 @@ expr:
#define YYPARSE_PARAM_TYPE arith_t *
#define YYPARSE_PARAM result
-char *arith_buf, *arith_startbuf;
+const char *arith_buf, *arith_startbuf;
int yylex(void);
int yyparse(YYPARSE_PARAM_TYPE);
@@ -284,7 +284,7 @@ arith_assign(char *name, arith_t value)
}
arith_t
-arith(char *s)
+arith(const char *s)
{
arith_t result;
@@ -299,7 +299,7 @@ arith(char *s)
}
static void
-yyerror(char *s)
+yyerror(const char *s)
{
yyerrok;
@@ -354,7 +354,7 @@ main(int argc, char *argv[])
printf("%d\n", exp(argv[1]));
}
-error(char *s)
+error(const char *s)
{
fprintf(stderr, "exp: %s\n", s);
exit(1);
Modified: stable/8/bin/sh/cd.c
==============================================================================
--- stable/8/bin/sh/cd.c Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/cd.c Sat Oct 2 20:39:45 2010 (r213366)
@@ -80,7 +80,7 @@ int
cdcmd(int argc, char **argv)
{
char *dest;
- char *path;
+ const char *path;
char *p;
struct stat statb;
int ch, phys, print = 0;
Modified: stable/8/bin/sh/exec.c
==============================================================================
--- stable/8/bin/sh/exec.c Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/exec.c Sat Oct 2 20:39:45 2010 (r213366)
@@ -98,7 +98,7 @@ int exerrno = 0; /* Last exec error */
STATIC void tryexec(char *, char **, char **);
STATIC void printentry(struct tblentry *, int);
-STATIC struct tblentry *cmdlookup(char *, int);
+STATIC struct tblentry *cmdlookup(const char *, int);
STATIC void delete_cmd_entry(void);
@@ -109,7 +109,7 @@ STATIC void delete_cmd_entry(void);
*/
void
-shellexec(char **argv, char **envp, char *path, int index)
+shellexec(char **argv, char **envp, const char *path, int index)
{
char *cmdname;
int e;
@@ -175,13 +175,13 @@ tryexec(char *cmd, char **argv, char **e
* NULL.
*/
-char *pathopt;
+const char *pathopt;
char *
-padvance(char **path, char *name)
+padvance(const char **path, const char *name)
{
- char *p, *q;
- char *start;
+ const char *p, *start;
+ char *q;
int len;
if (*path == NULL)
@@ -269,7 +269,7 @@ STATIC void
printentry(struct tblentry *cmdp, int verbose)
{
int index;
- char *path;
+ const char *path;
char *name;
if (cmdp->cmdtype == CMDNORMAL) {
@@ -310,7 +310,8 @@ printentry(struct tblentry *cmdp, int ve
*/
void
-find_command(char *name, struct cmdentry *entry, int printerr, char *path)
+find_command(const char *name, struct cmdentry *entry, int printerr,
+ const char *path)
{
struct tblentry *cmdp;
int index;
@@ -445,7 +446,7 @@ success:
*/
int
-find_builtin(char *name, int *special)
+find_builtin(const char *name, int *special)
{
const struct builtincmd *bp;
@@ -607,10 +608,10 @@ STATIC struct tblentry **lastcmdentry;
STATIC struct tblentry *
-cmdlookup(char *name, int add)
+cmdlookup(const char *name, int add)
{
int hashval;
- char *p;
+ const char *p;
struct tblentry *cmdp;
struct tblentry **pp;
@@ -663,7 +664,7 @@ delete_cmd_entry(void)
*/
void
-addcmdentry(char *name, struct cmdentry *entry)
+addcmdentry(const char *name, struct cmdentry *entry)
{
struct tblentry *cmdp;
@@ -683,7 +684,7 @@ addcmdentry(char *name, struct cmdentry
*/
void
-defun(char *name, union node *func)
+defun(const char *name, union node *func)
{
struct cmdentry entry;
@@ -700,7 +701,7 @@ defun(char *name, union node *func)
*/
int
-unsetfunc(char *name)
+unsetfunc(const char *name)
{
struct tblentry *cmdp;
@@ -766,7 +767,8 @@ typecmd_impl(int argc, char **argv, int
switch (entry.cmdtype) {
case CMDNORMAL: {
if (strchr(argv[i], '/') == NULL) {
- char *path = pathval(), *name;
+ const char *path = pathval();
+ char *name;
int j = entry.u.index;
do {
name = padvance(&path, argv[i]);
Modified: stable/8/bin/sh/exec.h
==============================================================================
--- stable/8/bin/sh/exec.h Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/exec.h Sat Oct 2 20:39:45 2010 (r213366)
@@ -57,20 +57,20 @@ struct cmdentry {
};
-extern char *pathopt; /* set by padvance */
+extern const char *pathopt; /* set by padvance */
extern int exerrno; /* last exec error */
-void shellexec(char **, char **, char *, int);
-char *padvance(char **, char *);
+void shellexec(char **, char **, const char *, int);
+char *padvance(const char **, const char *);
int hashcmd(int, char **);
-void find_command(char *, struct cmdentry *, int, char *);
-int find_builtin(char *, int *);
+void find_command(const char *, struct cmdentry *, int, const char *);
+int find_builtin(const char *, int *);
void hashcd(void);
void changepath(const char *);
void deletefuncs(void);
-void addcmdentry(char *, struct cmdentry *);
-void defun(char *, union node *);
-int unsetfunc(char *);
+void addcmdentry(const char *, struct cmdentry *);
+void defun(const char *, union node *);
+int unsetfunc(const char *);
int typecmd_impl(int, char **, int);
int typecmd(int, char **);
void clearcmdentry(int);
Modified: stable/8/bin/sh/expand.c
==============================================================================
--- stable/8/bin/sh/expand.c Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/expand.c Sat Oct 2 20:39:45 2010 (r213366)
@@ -109,7 +109,7 @@ STATIC void expmeta(char *, char *);
STATIC void addfname(char *);
STATIC struct strlist *expsort(struct strlist *);
STATIC struct strlist *msort(struct strlist *, int);
-STATIC int pmatch(char *, char *, int);
+STATIC int pmatch(const char *, const char *, int);
STATIC char *cvtnum(int, char *);
STATIC int collate_range_cmp(int, int);
@@ -1343,7 +1343,7 @@ msort(struct strlist *list, int len)
*/
int
-patmatch(char *pattern, char *string, int squoted)
+patmatch(const char *pattern, const char *string, int squoted)
{
#ifdef notdef
if (pattern[0] == '!' && pattern[1] == '!')
@@ -1355,9 +1355,9 @@ patmatch(char *pattern, char *string, in
STATIC int
-pmatch(char *pattern, char *string, int squoted)
+pmatch(const char *pattern, const char *string, int squoted)
{
- char *p, *q;
+ const char *p, *q;
char c;
p = pattern;
@@ -1405,7 +1405,7 @@ pmatch(char *pattern, char *string, int
} while (*q++ != '\0');
return 0;
case '[': {
- char *endp;
+ const char *endp;
int invert, found;
char chr;
@@ -1509,7 +1509,7 @@ rmescapes(char *str)
*/
int
-casematch(union node *pattern, char *val)
+casematch(union node *pattern, const char *val)
{
struct stackmark smark;
int result;
Modified: stable/8/bin/sh/expand.h
==============================================================================
--- stable/8/bin/sh/expand.h Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/expand.h Sat Oct 2 20:39:45 2010 (r213366)
@@ -58,7 +58,7 @@ union node;
void expandhere(union node *, int);
void expandarg(union node *, struct arglist *, int);
void expari(int);
-int patmatch(char *, char *, int);
+int patmatch(const char *, const char *, int);
void rmescapes(char *);
-int casematch(union node *, char *);
+int casematch(union node *, const char *);
int wordexpcmd(int, char **);
Modified: stable/8/bin/sh/histedit.c
==============================================================================
--- stable/8/bin/sh/histedit.c Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/histedit.c Sat Oct 2 20:39:45 2010 (r213366)
@@ -406,7 +406,7 @@ fc_replace(const char *s, char *p, char
}
int
-not_fcnumber(char *s)
+not_fcnumber(const char *s)
{
if (s == NULL)
return (0);
@@ -416,10 +416,10 @@ not_fcnumber(char *s)
}
int
-str_to_event(char *str, int last)
+str_to_event(const char *str, int last)
{
HistEvent he;
- char *s = str;
+ const char *s = str;
int relative = 0;
int i, retval;
Modified: stable/8/bin/sh/input.c
==============================================================================
--- stable/8/bin/sh/input.c Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/input.c Sat Oct 2 20:39:45 2010 (r213366)
@@ -401,7 +401,7 @@ popstring(void)
*/
void
-setinputfile(char *fname, int push)
+setinputfile(const char *fname, int push)
{
int fd;
int fd2;
Modified: stable/8/bin/sh/input.h
==============================================================================
--- stable/8/bin/sh/input.h Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/input.h Sat Oct 2 20:39:45 2010 (r213366)
@@ -52,7 +52,7 @@ int preadateof(void);
void pungetc(void);
void pushstring(char *, int, void *);
void popstring(void);
-void setinputfile(char *, int);
+void setinputfile(const char *, int);
void setinputfd(int, int);
void setinputstring(char *, int);
void popfile(void);
Modified: stable/8/bin/sh/mail.c
==============================================================================
--- stable/8/bin/sh/mail.c Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/mail.c Sat Oct 2 20:39:45 2010 (r213366)
@@ -72,7 +72,7 @@ void
chkmail(int silent)
{
int i;
- char *mpath;
+ const char *mpath;
char *p;
char *q;
struct stackmark smark;
Modified: stable/8/bin/sh/main.c
==============================================================================
--- stable/8/bin/sh/main.c Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/main.c Sat Oct 2 20:39:45 2010 (r213366)
@@ -271,7 +271,7 @@ read_profile(char *name)
*/
void
-readcmdfile(char *name)
+readcmdfile(const char *name)
{
int fd;
@@ -298,7 +298,7 @@ find_dot_file(char *basename)
{
static char localname[FILENAME_MAX+1];
char *fullname;
- char *path = pathval();
+ const char *path = pathval();
struct stat statb;
/* don't try this for absolute or relative paths */
Modified: stable/8/bin/sh/main.h
==============================================================================
--- stable/8/bin/sh/main.h Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/main.h Sat Oct 2 20:39:45 2010 (r213366)
@@ -36,7 +36,7 @@
extern int rootpid; /* pid of main shell */
extern int rootshell; /* true if we aren't a child of the main shell */
-void readcmdfile(char *);
+void readcmdfile(const char *);
void cmdloop(int);
int dotcmd(int, char **);
int exitcmd(int, char **);
Modified: stable/8/bin/sh/memalloc.c
==============================================================================
--- stable/8/bin/sh/memalloc.c Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/memalloc.c Sat Oct 2 20:39:45 2010 (r213366)
@@ -95,7 +95,7 @@ ckfree(pointer p)
*/
char *
-savestr(char *s)
+savestr(const char *s)
{
char *p;
Modified: stable/8/bin/sh/memalloc.h
==============================================================================
--- stable/8/bin/sh/memalloc.h Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/memalloc.h Sat Oct 2 20:39:45 2010 (r213366)
@@ -51,7 +51,7 @@ extern int herefd;
pointer ckmalloc(size_t);
pointer ckrealloc(pointer, int);
void ckfree(pointer);
-char *savestr(char *);
+char *savestr(const char *);
pointer stalloc(int);
void stunalloc(pointer);
void setstackmark(struct stackmark *);
Modified: stable/8/bin/sh/myhistedit.h
==============================================================================
--- stable/8/bin/sh/myhistedit.h Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/myhistedit.h Sat Oct 2 20:39:45 2010 (r213366)
@@ -39,7 +39,7 @@ extern int displayhist;
void histedit(void);
void sethistsize(const char *);
int histcmd(int, char **);
-int not_fcnumber(char *);
-int str_to_event(char *, int);
+int not_fcnumber(const char *);
+int str_to_event(const char *, int);
int bindcmd(int, char **);
Modified: stable/8/bin/sh/options.c
==============================================================================
--- stable/8/bin/sh/options.c Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/options.c Sat Oct 2 20:39:45 2010 (r213366)
@@ -554,9 +554,10 @@ out:
*/
int
-nextopt(char *optstring)
+nextopt(const char *optstring)
{
- char *p, *q;
+ char *p;
+ const char *q;
char c;
if ((p = optptr) == NULL || *p == '\0') {
Modified: stable/8/bin/sh/options.h
==============================================================================
--- stable/8/bin/sh/options.h Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/options.h Sat Oct 2 20:39:45 2010 (r213366)
@@ -111,5 +111,5 @@ void freeparam(struct shparam *);
int shiftcmd(int, char **);
int setcmd(int, char **);
int getoptscmd(int, char **);
-int nextopt(char *);
+int nextopt(const char *);
void getoptsreset(const char *);
Modified: stable/8/bin/sh/output.c
==============================================================================
--- stable/8/bin/sh/output.c Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/output.c Sat Oct 2 20:39:45 2010 (r213366)
@@ -316,7 +316,7 @@ doformat(struct output *dest, const char
*/
int
-xwrite(int fd, char *buf, int nbytes)
+xwrite(int fd, const char *buf, int nbytes)
{
int ntry;
int i;
Modified: stable/8/bin/sh/output.h
==============================================================================
--- stable/8/bin/sh/output.h Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/output.h Sat Oct 2 20:39:45 2010 (r213366)
@@ -68,7 +68,7 @@ void out1fmt(const char *, ...) __printf
void dprintf(const char *, ...) __printflike(1, 2);
void fmtstr(char *, int, const char *, ...) __printflike(3, 4);
void doformat(struct output *, const char *, va_list) __printflike(2, 0);
-int xwrite(int, char *, int);
+int xwrite(int, const char *, int);
#define outc(c, file) (--(file)->nleft < 0? (emptyoutbuf(file), *(file)->nextc++ = (c)) : (*(file)->nextc++ = (c)))
#define out1c(c) outc(c, out1);
Modified: stable/8/bin/sh/parser.c
==============================================================================
--- stable/8/bin/sh/parser.c Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/parser.c Sat Oct 2 20:39:45 2010 (r213366)
@@ -1518,9 +1518,9 @@ noexpand(char *text)
*/
int
-goodname(char *name)
+goodname(const char *name)
{
- char *p;
+ const char *p;
p = name;
if (! is_name(*p))
Modified: stable/8/bin/sh/parser.h
==============================================================================
--- stable/8/bin/sh/parser.h Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/parser.h Sat Oct 2 20:39:45 2010 (r213366)
@@ -77,5 +77,5 @@ extern int whichprompt; /* 1 == PS1, 2
union node *parsecmd(int);
void fixredir(union node *, const char *, int);
-int goodname(char *);
+int goodname(const char *);
char *getprompt(void *);
Modified: stable/8/bin/sh/show.c
==============================================================================
--- stable/8/bin/sh/show.c Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/show.c Sat Oct 2 20:39:45 2010 (r213366)
@@ -307,7 +307,7 @@ sh_trace(const char *fmt, ...)
void
-trputs(char *s)
+trputs(const char *s)
{
if (tracefile == NULL)
return;
Modified: stable/8/bin/sh/show.h
==============================================================================
--- stable/8/bin/sh/show.h Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/show.h Sat Oct 2 20:39:45 2010 (r213366)
@@ -35,6 +35,6 @@ void showtree(union node *);
void sh_trace(const char *, ...) __printflike(1, 2);
void trargs(char **);
void trputc(int);
-void trputs(char *);
+void trputs(const char *);
void opentrace(void);
#endif
Modified: stable/8/bin/sh/var.c
==============================================================================
--- stable/8/bin/sh/var.c Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/var.c Sat Oct 2 20:39:45 2010 (r213366)
@@ -122,9 +122,9 @@ STATIC const struct varinit varinit[] =
STATIC struct var *vartab[VTABSIZE];
-STATIC struct var **hashvar(char *);
-STATIC int varequal(char *, char *);
-STATIC int localevar(char *);
+STATIC struct var **hashvar(const char *);
+STATIC int varequal(const char *, const char *);
+STATIC int localevar(const char *);
/*
* Initialize the variable symbol tables and import the environment.
@@ -190,7 +190,7 @@ initvar(void)
*/
int
-setvarsafe(char *name, char *val, int flags)
+setvarsafe(const char *name, const char *val, int flags)
{
struct jmploc jmploc;
struct jmploc *const savehandler = handler;
@@ -212,9 +212,9 @@ setvarsafe(char *name, char *val, int fl
*/
void
-setvar(char *name, char *val, int flags)
+setvar(const char *name, const char *val, int flags)
{
- char *p, *q;
+ const char *p;
int len;
int namelen;
char *nameeq;
@@ -242,19 +242,18 @@ setvar(char *name, char *val, int flags)
} else {
len += strlen(val);
}
- p = nameeq = ckmalloc(len);
- q = name;
- while (--namelen >= 0)
- *p++ = *q++;
- *p++ = '=';
- *p = '\0';
+ nameeq = ckmalloc(len);
+ memcpy(nameeq, name, namelen);
+ nameeq[namelen] = '=';
if (val)
- scopy(val, p);
+ scopy(val, nameeq + namelen + 1);
+ else
+ nameeq[namelen + 1] = '\0';
setvareq(nameeq, flags);
}
STATIC int
-localevar(char *s)
+localevar(const char *s)
{
static char *lnames[7] = {
"ALL", "COLLATE", "CTYPE", "MONETARY",
@@ -280,7 +279,7 @@ localevar(char *s)
* pointer into environ where the string should not be manipulated.
*/
static void
-change_env(char *s, int set)
+change_env(const char *s, int set)
{
char *eqp;
char *ss;
@@ -391,7 +390,7 @@ listsetvar(struct strlist *list)
*/
char *
-lookupvar(char *name)
+lookupvar(const char *name)
{
struct var *v;
@@ -414,7 +413,7 @@ lookupvar(char *name)
*/
char *
-bltinlookup(char *name, int doall)
+bltinlookup(const char *name, int doall)
{
struct strlist *sp;
struct var *v;
@@ -798,7 +797,7 @@ unsetcmd(int argc __unused, char **argv
*/
int
-unsetvar(char *s)
+unsetvar(const char *s)
{
struct var **vpp;
struct var *vp;
@@ -838,7 +837,7 @@ unsetvar(char *s)
*/
STATIC struct var **
-hashvar(char *p)
+hashvar(const char *p)
{
unsigned int hashval;
@@ -857,7 +856,7 @@ hashvar(char *p)
*/
STATIC int
-varequal(char *p, char *q)
+varequal(const char *p, const char *q)
{
while (*p == *q++) {
if (*p++ == '=')
Modified: stable/8/bin/sh/var.h
==============================================================================
--- stable/8/bin/sh/var.h Sat Oct 2 19:44:13 2010 (r213365)
+++ stable/8/bin/sh/var.h Sat Oct 2 20:39:45 2010 (r213366)
@@ -101,12 +101,12 @@ extern struct var vhistsize;
#define mpathset() ((vmpath.flags & VUNSET) == 0)
void initvar(void);
-void setvar(char *, char *, int);
+void setvar(const char *, const char *, int);
void setvareq(char *, int);
struct strlist;
void listsetvar(struct strlist *);
-char *lookupvar(char *);
-char *bltinlookup(char *, int);
+char *lookupvar(const char *);
+char *bltinlookup(const char *, int);
char **environment(void);
void shprocvar(void);
int showvarscmd(int, char **);
@@ -116,5 +116,5 @@ void mklocal(char *);
void poplocalvars(void);
int setvarcmd(int, char **);
int unsetcmd(int, char **);
-int unsetvar(char *);
-int setvarsafe(char *, char *, int);
+int unsetvar(const char *);
+int setvarsafe(const char *, const char *, int);
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