diff options
Diffstat (limited to 'shell/hush.c')
| -rw-r--r-- | shell/hush.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/shell/hush.c b/shell/hush.c index b19d4ea..d58f526 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -3525,16 +3525,15 @@ static int add_till_closing_bracket(o_string *dest, struct in_str *input, unsign /* Return code: 0 for OK, 1 for syntax error */ #if BB_MMU -#define parse_dollar(as_string, dest, input) \ - parse_dollar(dest, input) +#define parse_dollar(as_string, dest, input, quote_mask) \ + parse_dollar(dest, input, quote_mask) #define as_string NULL #endif static int parse_dollar(o_string *as_string, o_string *dest, - struct in_str *input) + struct in_str *input, unsigned char quote_mask) { int ch = i_peek(input); /* first character after the $ */ - unsigned char quote_mask = (dest->o_expflags & EXP_FLAG_ESC_GLOB_CHARS) ? 0x80 : 0; debug_printf_parse("parse_dollar entered: ch='%c'\n", ch); if (isalpha(ch)) { @@ -3576,17 +3575,19 @@ static int parse_dollar(o_string *as_string, nommu_addchr(as_string, ch); ch = i_getch(input); /* first char after '{' */ - nommu_addchr(as_string, ch); /* It should be ${?}, or ${#var}, * or even ${?+subst} - operator acting on a special variable, * or the beginning of variable name. */ - if (!strchr(_SPECIAL_VARS_STR, ch) && !isalnum(ch)) { /* not one of those */ + if (ch == EOF + || (!strchr(_SPECIAL_VARS_STR, ch) && !isalnum(ch)) /* not one of those */ + ) { bad_dollar_syntax: syntax_error_unterm_str("${name}"); debug_printf_parse("parse_dollar return 1: unterminated ${name}\n"); return 1; } + nommu_addchr(as_string, ch); ch |= quote_mask; /* It's possible to just call add_till_closing_bracket() at this point. @@ -3785,7 +3786,7 @@ static int parse_stream_dquoted(o_string *as_string, goto again; } if (ch == '$') { - if (parse_dollar(as_string, dest, input) != 0) { + if (parse_dollar(as_string, dest, input, /*quote_mask:*/ 0x80) != 0) { debug_printf_parse("parse_stream_dquoted return 1: " "parse_dollar returned non-0\n"); return 1; @@ -4135,7 +4136,7 @@ static struct pipe *parse_stream(char **pstring, #endif break; case '$': - if (parse_dollar(&ctx.as_string, &dest, input) != 0) { + if (parse_dollar(&ctx.as_string, &dest, input, /*quote_mask:*/ 0) != 0) { debug_printf_parse("parse_stream parse error: " "parse_dollar returned non-0\n"); goto parse_error; |