diff options
| -rw-r--r-- | shell/ash.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/shell/ash.c b/shell/ash.c index 5381f34eb..83a8e77f9 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -6756,6 +6756,10 @@ subevalvar(char *p, char *varname, int strloc, int subtype, // p, varname, strloc, subtype, startloc, varflags, quotes); #if BASH_PATTERN_SUBST + /* For "${v/pattern/repl}", we must find the delimiter _before_ + * argstr() call expands possible variable references in pattern: + * think about "v=a; a=a/; echo ${v/$a/r}" case. + */ repl = NULL; if (subtype == VSREPLACE || subtype == VSREPLACEALL) { /* Find '/' and replace with NUL */ @@ -6770,11 +6774,8 @@ subevalvar(char *p, char *varname, int strloc, int subtype, *repl = '\0'; break; } - if ((unsigned char)*repl == CTLESC - && repl[1] - ) { + if ((unsigned char)*repl == CTLESC && repl[1]) repl++; - } repl++; } } @@ -6941,11 +6942,10 @@ subevalvar(char *p, char *varname, int strloc, int subtype, if (!repl) { //bb_error_msg("str9:'%s' slash_pos:%d", str, slash_pos); + repl = nullstr; if (slash_pos >= 0) { repl = str + slash_pos; *repl++ = '\0'; - } else { - repl = nullstr; } } //bb_error_msg("str:'%s' repl:'%s'", str, repl); |