diff options
Diffstat (limited to 'shell/hush.c')
| -rw-r--r-- | shell/hush.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/shell/hush.c b/shell/hush.c index aa6d3759c..1c1333eb1 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -46,7 +46,6 @@ * special variables (done: PWD, PPID, RANDOM) * follow IFS rules more precisely, including update semantics * tilde expansion - * aliases * "command" missing features: * command -p CMD: run CMD using default $PATH * (can use this to override standalone shell as well?) @@ -102,7 +101,7 @@ //config: //config: It will compile and work on no-mmu systems. //config: -//config: It does not handle select, aliases, tilde expansion, +//config: It does not handle select, tilde expansion, //config: &>file and >&file redirection of stdout+stderr. //config: // This option is visible (has a description) to make it possible to select @@ -2923,10 +2922,16 @@ static ALWAYS_INLINE int i_has_alias_buffer(struct in_str *i) static void i_prepend_to_alias_buffer(struct in_str *i, char *prepend, char ch) { if (i->saved_ibuf) { - size_t ofs = i->p - i->albuf; + /* Nested alias expansion example: + * alias a='b c'; alias b='echo A:' + * a + * ^^^ runs "echo A: c" + */ char *old = i->albuf; - i->albuf = xasprintf("%s%c%s", prepend, ch, old); - i->p = i->albuf + ofs; + //bb_error_msg("before'%s' p'%s'", i->albuf, i->p); + i->albuf = xasprintf("%s%c%s", prepend, ch, i->p); + i->p = i->albuf; + //bb_error_msg("after'%s' p'%s'", i->albuf, i->p); free(old); return; } |