80 lines
2.2 KiB
Diff
80 lines
2.2 KiB
Diff
From 9783ca9bed0cfb682e7bc76ed605aeb38571930a Mon Sep 17 00:00:00 2001
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From: Addison Crump <addison.crump@cispa.de>
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Date: Sat, 18 Nov 2023 16:52:00 +0100
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Subject: [PATCH] Sanity checks for ctype functions (#342)
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* fixup: sanity checks for ctype functions
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* format
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* more grep fixes
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* don't check if constrained by type
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---
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src/pcre2_convert.c | 8 ++++++++
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src/pcre2grep.c | 8 ++++----
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2 files changed, 12 insertions(+), 4 deletions(-)
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diff --git a/src/pcre2_convert.c b/src/pcre2_convert.c
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index d45b6fe..cabbd12 100644
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--- a/src/pcre2_convert.c
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+++ b/src/pcre2_convert.c
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@@ -541,6 +541,14 @@ Returns: !0 => character is found in the class
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static BOOL
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convert_glob_char_in_class(int class_index, PCRE2_UCHAR c)
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{
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+#if PCRE2_CODE_UNIT_WIDTH != 8
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+if (c > 0xff)
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+ {
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+ /* ctype functions are not sane for c > 0xff */
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+ return 0;
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+ }
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+#endif
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+
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switch (class_index)
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{
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case 1: return isalnum(c);
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diff --git a/src/pcre2grep.c b/src/pcre2grep.c
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index 10314a5..73ef246 100644
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--- a/src/pcre2grep.c
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+++ b/src/pcre2grep.c
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@@ -738,7 +738,7 @@ decode_ANSI_colour(const char *cs)
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WORD result = csbi.wAttributes;
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while (*cs)
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{
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- if (isdigit(*cs))
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+ if (isdigit((unsigned char)(*cs)))
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{
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int code = atoi(cs);
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if (code == 1) result |= 0x08;
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@@ -752,7 +752,7 @@ while (*cs)
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else if (code >= 90 && code <= 97) result = (result & 0xF0) | BGR_RGB(code - 90) | 0x08;
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else if (code >= 100 && code <= 107) result = (result & 0x0F) | (BGR_RGB(code - 100) << 4) | 0x80;
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- while (isdigit(*cs)) cs++;
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+ while (isdigit((unsigned char)(*cs))) cs++;
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}
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if (*cs) cs++;
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}
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@@ -3921,7 +3921,7 @@ for (i = 1; i < argc; i++)
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if (op->type == OP_OP_NUMBER || op->type == OP_OP_NUMBERS)
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{
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- if (isdigit((unsigned char)s[1])) break;
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+ if (isdigit((unsigned char)(s[1]))) break;
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}
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else /* Check for an option with data */
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{
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@@ -4397,7 +4397,7 @@ for (fn = file_lists; fn != NULL; fn = fn->next)
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{
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int frc;
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char *end = buffer + (int)strlen(buffer);
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- while (end > buffer && isspace(end[-1])) end--;
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+ while (end > buffer && isspace((unsigned char)(end[-1]))) end--;
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*end = 0;
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if (*buffer != 0)
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{
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--
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2.33.0
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