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shell.l: Set the TERM env. variable if does not exist. #34

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Merged
sanbee merged 1 commit into from
Apr 3, 2026
Merged

shell.l: Set the TERM env. variable if does not exist. #34

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10 changes: 10 additions & 0 deletions code/shell.l
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@
#include <readline/history.h>
#include <stdlib.h>
#include <functional>
#include <cstdlib>
using namespace std;
/*
This piece is added only if commandline editing (via GNU Readline and
Expand All @@ -49,6 +50,15 @@ static int inp_readline(char *buf, size_t max_size)
{
int n,result;
static size_t index=0;
//
// Set the TERM env variable if it does not exist. readline() call
// seg. faults if TERM env variable does not exist. readline()
// (perhaps due to terminfo) is robust to the value of the TERM
// variable -- a blank seems sufficient for it to figure out the
// capabilities of the terminal (at least it does not seg. fault).
//
if (getenv("TERM")==NULL) setenv("TERM","",1);

if (rl_instream == NULL) rl_instream=stdin;
if (rl_outstream == NULL) rl_outstream=stderr;
if (index==0)
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