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-rw-r--r--system/ksh-openbsd/patches/06-ksh-remove-backslashes-in-filenames-using-lex.diff118
1 files changed, 118 insertions, 0 deletions
diff --git a/system/ksh-openbsd/patches/06-ksh-remove-backslashes-in-filenames-using-lex.diff b/system/ksh-openbsd/patches/06-ksh-remove-backslashes-in-filenames-using-lex.diff
new file mode 100644
index 0000000000000..04ca29f6f10ca
--- /dev/null
+++ b/system/ksh-openbsd/patches/06-ksh-remove-backslashes-in-filenames-using-lex.diff
@@ -0,0 +1,118 @@
+From 458d69d8f10d582fd7a546eabc1b555bb7337627 Mon Sep 17 00:00:00 2001
+From: Alexander Polakov <polachok@gmail.com>
+Date: Sun, 29 May 2011 16:05:58 +0400
+Subject: [PATCH 6/8] ksh: remove backslashes in filenames using lex.
+
+ * this also removes the check for matching pattern and
+ returned filename. if it returns 1 name, then it must
+ be the filename of an existing file, right? i think
+ so.
+
+ * change stat() to lstat() to complete broken links
+ (from LEVAI Daniel).
+
+ Why:
+
+ * less ugly code
+ * working completion for special characters like [], () and so
+ * suggested by martynas
+---
+ edit.c | 31 +++++++------------------------
+ lex.c | 4 ++++
+ lex.h | 1 +
+ 3 files changed, 12 insertions(+), 24 deletions(-)
+
+diff --git edit.c edit.c
+index 9cdcc6d..01c2fe6 100644
+--- edit.c
++++ edit.c
+@@ -351,7 +351,7 @@ x_file_glob(int flags, const char *str, int slen, char ***wordsp)
+ {
+ char *toglob;
+ char **words;
+- int nwords, i, idx, escaping;
++ int nwords;
+ XPtrV w;
+ struct source *s, *sold;
+
+@@ -360,20 +360,6 @@ x_file_glob(int flags, const char *str, int slen, char ***wordsp)
+
+ toglob = add_glob(str, slen);
+
+- /* remove all escaping backward slashes */
+- escaping = 0;
+- for (i = 0, idx = 0; toglob[i]; i++) {
+- if (toglob[i] == '\\' && !escaping) {
+- escaping = 1;
+- continue;
+- }
+-
+- toglob[idx] = toglob[i];
+- idx++;
+- if (escaping) escaping = 0;
+- }
+- toglob[idx] = '\0';
+-
+ /*
+ * Convert "foo*" (toglob) to an array of strings (words)
+ */
+@@ -381,7 +367,7 @@ x_file_glob(int flags, const char *str, int slen, char ***wordsp)
+ s = pushs(SWSTR, ATEMP);
+ s->start = s->str = toglob;
+ source = s;
+- if (yylex(ONEWORD) != LWORD) {
++ if (yylex(ONEWORD|RMBKSLSH) != LWORD) {
+ source = sold;
+ internal_errorf(0, "fileglob: substitute error");
+ return 0;
+@@ -397,15 +383,12 @@ x_file_glob(int flags, const char *str, int slen, char ***wordsp)
+ if (nwords == 1) {
+ struct stat statb;
+
+- /* Check if globbing failed (returned glob pattern),
+- * but be careful (E.g. toglob == "ab*" when the file
+- * "ab*" exists is not an error).
+- * Also, check for empty result - happens if we tried
+- * to glob something which evaluated to an empty
+- * string (e.g., "$FOO" when there is no FOO, etc).
++ /* Check if file exists, also, check for empty
++ * result - happens if we tried to glob something
++ * which evaluated to an empty string (e.g.,
++ * "$FOO" when there is no FOO, etc).
+ */
+- if ((strcmp(words[0], toglob) == 0 &&
+- stat(words[0], &statb) < 0) ||
++ if((lstat(words[0], &statb) < 0) ||
+ words[0][0] == '\0') {
+ x_free_words(nwords, words);
+ words = NULL;
+diff --git lex.c lex.c
+index ef741c6..fe3d91d 100644
+--- lex.c
++++ lex.c
+@@ -299,6 +299,10 @@ yylex(int cf)
+ }
+ /* FALLTHROUGH */
+ default:
++ if (cf & RMBKSLSH) {
++ *wp++ = QCHAR, *wp++ = c;
++ break;
++ }
+ Xcheck(ws, wp);
+ if (c) { /* trailing \ is lost */
+ *wp++ = CHAR, *wp++ = '\\';
+diff --git lex.h lex.h
+index 0904fbd..6a0dbf9 100644
+--- lex.h
++++ lex.h
+@@ -113,6 +113,7 @@ typedef union {
+ #define CMDWORD BIT(8) /* parsing simple command (alias related) */
+ #define HEREDELIM BIT(9) /* parsing <<,<<- delimiter */
+ #define HEREDOC BIT(10) /* parsing heredoc */
++#define RMBKSLSH BIT(11) /* remove backslashes */
+
+ #define HERES 10 /* max << in line */
+
+--
+1.7.5
+