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-rw-r--r--Src/params.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/Src/params.c b/Src/params.c
index 790102923..0699ead85 100644
--- a/Src/params.c
+++ b/Src/params.c
@@ -67,6 +67,7 @@ char **path, /* $path */
/**/
mod_export
char *argzero, /* $0 */
+ *posixzero, /* $0 */
*home, /* $HOME */
*nullcmd, /* $NULLCMD */
*oldpwd, /* $OLDPWD */
@@ -194,6 +195,8 @@ static const struct gsu_integer euid_gsu =
static const struct gsu_integer ttyidle_gsu =
{ ttyidlegetfn, nullintsetfn, stdunsetfn };
+static const struct gsu_scalar argzero_gsu =
+{ argzerogetfn, nullstrsetfn, nullunsetfn };
static const struct gsu_scalar username_gsu =
{ usernamegetfn, usernamesetfn, stdunsetfn };
static const struct gsu_scalar dash_gsu =
@@ -285,6 +288,7 @@ IPDEF2("WORDCHARS", wordchars_gsu, 0),
IPDEF2("IFS", ifs_gsu, PM_DONTIMPORT),
IPDEF2("_", underscore_gsu, PM_DONTIMPORT),
IPDEF2("KEYBOARD_HACK", keyboard_hack_gsu, PM_DONTIMPORT),
+IPDEF2("0", argzero_gsu, 0),
#ifdef USE_LOCALE
# define LCIPDEF(name) IPDEF2(name, lc_blah_gsu, PM_UNSET)
@@ -340,7 +344,6 @@ IPDEF7U("RPROMPT2", &rprompt2),
IPDEF7("PS3", &prompt3),
IPDEF7("PS4", &prompt4),
IPDEF7("SPROMPT", &sprompt),
-IPDEF7("0", &argzero),
#define IPDEF8(A,B,C,D) {{NULL,A,D|PM_SCALAR|PM_SPECIAL},BR((void *)B),GSU(colonarr_gsu),0,0,NULL,C,NULL,0}
IPDEF8("CDPATH", &cdpath, "cdpath", 0),
@@ -3981,6 +3984,17 @@ lcsetfn(Param pm, char *x)
}
#endif /* USE_LOCALE */
+/* Function to get value for special parameter `0' */
+
+/**/
+static char *
+argzerogetfn(UNUSED(Param pm))
+{
+ if (isset(POSIXARGZERO))
+ return posixzero;
+ return argzero;
+}
+
/* Function to get value for special parameter `HISTSIZE' */
/**/