68 lines
1.6 KiB
Diff
68 lines
1.6 KiB
Diff
From 007521ac3c95bc76e3d59c6dbfe75d06c8075c33 Mon Sep 17 00:00:00 2001
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From: Mark Nudelman <markn@greenwoodsoftware.com>
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Date: Thu, 11 Apr 2024 17:49:48 -0700
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Subject: [PATCH] Fix bug when viewing a file whose name contains a newline.
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---
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filename.c | 31 +++++++++++++++++++++++++------
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1 file changed, 25 insertions(+), 6 deletions(-)
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diff --git a/filename.c b/filename.c
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index f90e0e82..a52c6354 100644
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--- a/filename.c
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+++ b/filename.c
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@@ -133,6 +133,15 @@ static constant char * metachars(void)
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return (strchr(metachars(), c) != NULL);
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}
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+/*
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+ * Must use quotes rather than escape char for this metachar?
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+ */
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+static int must_quote(char c)
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+{
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+ /* {{ Maybe the set of must_quote chars should be configurable? }} */
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+ return (c == '\n');
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+}
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+
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/*
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* Insert a backslash before each metacharacter in a string.
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*/
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@@ -164,6 +173,9 @@ public char * shell_quoten(constant char *s, size_t slen)
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* doesn't support escape chars. Use quotes.
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*/
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use_quotes = 1;
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+ } else if (must_quote(*p))
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+ {
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+ len += 3; /* open quote + char + close quote */
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} else
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{
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/*
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@@ -193,15 +205,22 @@ public char * shell_quoten(constant char *s, size_t slen)
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{
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while (*s != '\0')
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{
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- if (metachar(*s))
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+ if (!metachar(*s))
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{
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- /*
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- * Add the escape char.
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- */
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+ *p++ = *s++;
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+ } else if (must_quote(*s))
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+ {
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+ /* Surround the char with quotes. */
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+ *p++ = openquote;
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+ *p++ = *s++;
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+ *p++ = closequote;
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+ } else
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+ {
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+ /* Insert an escape char before the char. */
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strcpy(p, esc);
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p += esclen;
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+ *p++ = *s++;
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}
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- *p++ = *s++;
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}
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*p = '\0';
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}
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