82 lines
2.7 KiB
Diff
82 lines
2.7 KiB
Diff
From 6c167138a204cd2e0580036bad32a51dae05c80b Mon Sep 17 00:00:00 2001
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From: Jan Engelhardt <jengelh@inai.de>
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Date: Mon, 17 Sep 2018 16:47:16 +0200
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Subject: [PATCH 1/5] vcc.y - factor out hexdigit conversion
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References: https://github.com/libical/libical/pull/354
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---
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src/libicalvcal/vcc.c | 17 +++++++++++------
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src/libicalvcal/vcc.y | 17 +++++++++++------
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2 files changed, 22 insertions(+), 12 deletions(-)
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Index: libical-3.0.17/src/libicalvcal/vcc.c
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===================================================================
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--- libical-3.0.17.orig/src/libicalvcal/vcc.c
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+++ libical-3.0.17/src/libicalvcal/vcc.c
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@@ -985,6 +985,15 @@ static int match_begin_end_name(int end)
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return 0;
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}
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+static int hexdigit_decode(char c)
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+{
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+ if (c >= '0' && c <= '9')
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+ return c - '0';
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+ if (c >= 'A' && c <= 'F')
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+ return c - 'A' + 10;
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+ return -1;
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+}
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+
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static char* lexGetQuotedPrintable(void)
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{
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char cur;
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@@ -998,12 +1007,8 @@ static char* lexGetQuotedPrintable(void)
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int next[2];
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int i;
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for (i = 0; i < 2; i++) {
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- next[i] = lexGetc();
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- if (next[i] >= '0' && next[i] <= '9')
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- c = c * 16 + next[i] - '0';
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- else if (next[i] >= 'A' && next[i] <= 'F')
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- c = c * 16 + next[i] - 'A' + 10;
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- else
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+ next[i] = hexdigit_decode(lexGetc());
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+ if (next[i] < 0)
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break;
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}
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if (i == 0) {
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Index: libical-3.0.17/src/libicalvcal/vcc.y
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===================================================================
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--- libical-3.0.17.orig/src/libicalvcal/vcc.y
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+++ libical-3.0.17/src/libicalvcal/vcc.y
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@@ -949,6 +949,15 @@ static int match_begin_end_name(int end)
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return 0;
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}
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+static int hexdigit_decode(char c)
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+{
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+ if (c >= '0' && c <= '9')
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+ return c - '0';
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+ if (c >= 'A' && c <= 'F')
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+ return c - 'A' + 10;
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+ return -1;
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+}
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+
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static char* lexGetQuotedPrintable()
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{
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char cur;
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@@ -962,12 +971,8 @@ static char* lexGetQuotedPrintable()
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int next[2];
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int i;
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for (i = 0; i < 2; i++) {
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- next[i] = lexGetc();
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- if (next[i] >= '0' && next[i] <= '9')
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- c = c * 16 + next[i] - '0';
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- else if (next[i] >= 'A' && next[i] <= 'F')
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- c = c * 16 + next[i] - 'A' + 10;
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- else
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+ next[i] = hexdigit_decode(lexGetc());
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+ if (next[i] < 0)
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break;
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}
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if (i == 0) {
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