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From: | Stefan Weil |
Subject: | Re: [PATCH 2/5] util/uri: Simplify uri_string_unescape() |
Date: | Mon, 22 Jan 2024 22:22:05 +0100 |
User-agent: | Mozilla Thunderbird |
Am 22.01.24 um 20:17 schrieb Thomas Huth:
uri_string_unescape() basically does the same as the glib function g_uri_unescape_string(), with just an additional length parameter. So we can simplify this function a lot by limiting the length with g_strndup() first and then by calling g_uri_unescape_string() instead of walking through the string manually. Suggested-by: Stefan Weil <stefan.weil@weilnetz.de>
Can my e-mail address be replaced by another one
(sw@weilnetz.de)?
Signed-off-by: Thomas Huth <thuth@redhat.com> --- util/uri.c | 49 +++---------------------------------------------- 1 file changed, 3 insertions(+), 46 deletions(-) diff --git a/util/uri.c b/util/uri.c index 33b6c7214e..2a75f535ba 100644 --- a/util/uri.c +++ b/util/uri.c @@ -1561,15 +1561,6 @@ done_cd: return 0; } -static int is_hex(char c) -{ - if (((c >= '0') && (c <= '9')) || ((c >= 'a') && (c <= 'f')) || - ((c >= 'A') && (c <= 'F'))) { - return 1; - } - return 0; -} - /** * uri_string_unescape: * @str: the string to unescape @@ -1585,8 +1576,7 @@ static int is_hex(char c) */ char *uri_string_unescape(const char *str, int len) { - char *ret, *out; - const char *in; + g_autofree char *lstr = NULL;
Is it necessary to assign NULL? It does not look so.
if (str == NULL) { return NULL; @@ -1594,42 +1584,9 @@ char *uri_string_unescape(const char *str, int len) if (len <= 0) { len = strlen(str); } - if (len < 0) { - return NULL; - } - - ret = g_malloc(len + 1); + lstr = g_strndup(str, len); - in = str; - out = ret; - while (len > 0) { - if ((len > 2) && (*in == '%') && (is_hex(in[1])) && (is_hex(in[2]))) { - in++; - if ((*in >= '0') && (*in <= '9')) { - *out = (*in - '0'); - } else if ((*in >= 'a') && (*in <= 'f')) { - *out = (*in - 'a') + 10; - } else if ((*in >= 'A') && (*in <= 'F')) { - *out = (*in - 'A') + 10; - } - in++; - if ((*in >= '0') && (*in <= '9')) { - *out = *out * 16 + (*in - '0'); - } else if ((*in >= 'a') && (*in <= 'f')) { - *out = *out * 16 + (*in - 'a') + 10; - } else if ((*in >= 'A') && (*in <= 'F')) { - *out = *out * 16 + (*in - 'A') + 10; - } - in++; - len -= 3; - out++; - } else { - *out++ = *in++; - len--; - } - } - *out = 0; - return ret; + return g_uri_unescape_string(lstr, NULL); } /**
Thank you.
Reviewed-by: Stefan Weil <sw@weilnetz.de>
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