emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

same as previous, but -100 bytes

Browse Source
This commit is contained in:
Denis Vlasenko 2009-04-19 14:03:11 +00:00
parent bf25fbccb9
commit 9f8d938172
1 changed files with 15 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
shell/hush.c
View File

@ -5476,22 +5476,24 @@ static struct pipe *parse_stream(char **pstring,
* will still trigger for us */
}
}
/* "cmd}" or "cmd }..." without semicolon or &:
* } is an ordinary char in this case, even inside { cmd; }
* Pathological example: { ""}; } should exec "}" cmd
*/
if (ch == '}'
&& !(IS_NULL_PIPE(ctx.pipe)
&& IS_NULL_CMD(ctx.command)
&& dest.length == 0
&& !dest.o_quoted
)
) {
goto ordinary_char;
}
if (end_trigger && end_trigger == ch
&& (heredoc_cnt == 0 || end_trigger != ';')
) {
/* "{ cmd}" or "{ cmd }..." without semicolon or &:
* } is an ordinary char in this case.
* Pathological example: { ""}; } should exec "}" cmd
*/
if (ch == '}'
&& !(IS_NULL_PIPE(ctx.pipe)
&& IS_NULL_CMD(ctx.command)
&& dest.length == 0
&& !dest.o_quoted
)
) {
goto ordinary_char;
}
if (heredoc_cnt) {
/* This is technically valid:
* { cat <<HERE; }; echo Ok
@ -5757,16 +5759,6 @@ static struct pipe *parse_stream(char **pstring,
goto case_semi;
#endif
case '}':
if (!(IS_NULL_PIPE(ctx.pipe)
&& IS_NULL_CMD(ctx.command)
&& dest.length == 0
&& !dest.o_quoted
)
) {
/* } not preceded by ; or & is an ordinary
* char, example: "echo }" */
goto ordinary_char;
}
/* proper use of this character is caught by end_trigger:
* if we see {, we call parse_group(..., end_trigger='}')
* and it will match } earlier (not here). */