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Diffstat (limited to 'data/bash/bash40-001')
| -rw-r--r-- | data/bash/bash40-001 | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/data/bash/bash40-001 b/data/bash/bash40-001 new file mode 100644 index 000000000..5c6bb34b2 --- /dev/null +++ b/data/bash/bash40-001 @@ -0,0 +1,162 @@ + BASH PATCH REPORT + ================= + +Bash-Release: 4.0 +Patch-ID: bash40-001 + +Bug-Reported-by: Mike Frysinger <vapier@gentoo.org> +Bug-Reference-ID: <200902211821.42188.vapier@gentoo.org> +Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2009-02/msg00147.html + +Bug-Description: + +Bash has problems parsing certain constructs inside Posix-style $(...) +command substitutions, mostly with backslash-quoting and reserved word +recognition. This is an issue because the contents are parsed at the +time the word containing the command substitution is read. + +Patch: + +*** ../bash-4.0/parse.y 2009-01-08 08:29:12.000000000 -0500 +--- parse.y 2009-03-06 20:32:35.000000000 -0500 +*************** +*** 2928,2931 **** +--- 2932,2936 ---- + #define LEX_HEREDELIM 0x100 /* reading here-doc delimiter */ + #define LEX_STRIPDOC 0x200 /* <<- strip tabs from here doc delim */ ++ #define LEX_INWORD 0x400 + + #define COMSUB_META(ch) ((ch) == ';' || (ch) == '&' || (ch) == '|') +*************** +*** 3180,3184 **** + int *lenp, flags; + { +! int count, ch, peekc, tflags, lex_rwlen, lex_firstind; + int nestlen, ttranslen, start_lineno; + char *ret, *nestret, *ttrans, *heredelim; +--- 3188,3192 ---- + int *lenp, flags; + { +! int count, ch, peekc, tflags, lex_rwlen, lex_wlen, lex_firstind; + int nestlen, ttranslen, start_lineno; + char *ret, *nestret, *ttrans, *heredelim; +*************** +*** 3201,3205 **** + + start_lineno = line_number; +! lex_rwlen = 0; + + heredelim = 0; +--- 3209,3213 ---- + + start_lineno = line_number; +! lex_rwlen = lex_wlen = 0; + + heredelim = 0; +*************** +*** 3268,3271 **** +--- 3276,3319 ---- + } + ++ if (tflags & LEX_PASSNEXT) /* last char was backslash */ ++ { ++ /*itrace("parse_comsub:%d: lex_passnext -> 0 ch = `%c' (%d)", line_number, ch, __LINE__);*/ ++ tflags &= ~LEX_PASSNEXT; ++ if (qc != '\'' && ch == '\n') /* double-quoted \<newline> disappears. */ ++ { ++ if (retind > 0) ++ retind--; /* swallow previously-added backslash */ ++ continue; ++ } ++ ++ RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64); ++ if MBTEST(ch == CTLESC || ch == CTLNUL) ++ ret[retind++] = CTLESC; ++ ret[retind++] = ch; ++ continue; ++ } ++ ++ /* If this is a shell break character, we are not in a word. If not, ++ we either start or continue a word. */ ++ if MBTEST(shellbreak (ch)) ++ { ++ tflags &= ~LEX_INWORD; ++ /*itrace("parse_comsub:%d: lex_inword -> 0 ch = `%c' (%d)", line_number, ch, __LINE__);*/ ++ } ++ else ++ { ++ if (tflags & LEX_INWORD) ++ { ++ lex_wlen++; ++ /*itrace("parse_comsub:%d: lex_inword == 1 ch = `%c' lex_wlen = %d (%d)", line_number, ch, lex_wlen, __LINE__);*/ ++ } ++ else ++ { ++ /*itrace("parse_comsub:%d: lex_inword -> 1 ch = `%c' (%d)", line_number, ch, __LINE__);*/ ++ tflags |= LEX_INWORD; ++ lex_wlen = 0; ++ } ++ } ++ + /* Skip whitespace */ + if MBTEST(shellblank (ch) && lex_rwlen == 0) +*************** +*** 3400,3428 **** + } + else +! ch = peekc; /* fall through and continue XXX - this skips comments if peekc == '#' */ + } +! /* Not exactly right yet, should handle shell metacharacters, too. If +! any changes are made to this test, make analogous changes to subst.c: +! extract_delimited_string(). */ +! else if MBTEST((tflags & LEX_CKCOMMENT) && (tflags & LEX_INCOMMENT) == 0 && ch == '#' && (retind == 0 || ret[retind-1] == '\n' || shellblank (ret[retind - 1]))) + tflags |= LEX_INCOMMENT; + +! if (tflags & LEX_PASSNEXT) /* last char was backslash */ +! { +! tflags &= ~LEX_PASSNEXT; +! if (qc != '\'' && ch == '\n') /* double-quoted \<newline> disappears. */ +! { +! if (retind > 0) +! retind--; /* swallow previously-added backslash */ +! continue; +! } +! +! RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64); +! if MBTEST(ch == CTLESC || ch == CTLNUL) +! ret[retind++] = CTLESC; +! ret[retind++] = ch; +! continue; +! } +! else if MBTEST(ch == CTLESC || ch == CTLNUL) /* special shell escapes */ + { + RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64); +--- 3442,3454 ---- + } + else +! ch = peekc; /* fall through and continue XXX */ + } +! else if MBTEST((tflags & LEX_CKCOMMENT) && (tflags & LEX_INCOMMENT) == 0 && ch == '#' && (((tflags & LEX_RESWDOK) && lex_rwlen == 0) || ((tflags & LEX_INWORD) && lex_wlen == 0))) +! { +! /*itrace("parse_comsub:%d: lex_incomment -> 1 (%d)", line_number, __LINE__);*/ + tflags |= LEX_INCOMMENT; ++ } + +! if MBTEST(ch == CTLESC || ch == CTLNUL) /* special shell escapes */ + { + RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64); +*** ../bash-4.0/patchlevel.h 2009-01-04 14:32:40.000000000 -0500 +--- patchlevel.h 2009-02-22 16:11:31.000000000 -0500 +*************** +*** 26,30 **** + looks for to find the patch level (for the sccs version string). */ + +! #define PATCHLEVEL 0 + + #endif /* _PATCHLEVEL_H_ */ +--- 26,30 ---- + looks for to find the patch level (for the sccs version string). */ + +! #define PATCHLEVEL 1 + + #endif /* _PATCHLEVEL_H_ */ |