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authorRikard Falkeborn <rikard.falkeborn@gmail.com>2020-04-27 12:07:34 +0200
committerDaniel Stenberg <daniel@haxx.se>2020-04-28 07:56:34 +0200
commitfc0e29dd57bb0dc7bbf4d0e5c9638b01f7b6afc6 (patch)
tree8f24df11dadfaace6b9fbc3ad9868c8acdd155ca /lib
parentcad15b9f92812ea4cdec6b65b7e2a83bdc007eb3 (diff)
doh: Constify some input pointers
Closes #5306
Diffstat (limited to 'lib')
-rw-r--r--lib/doh.c26
-rw-r--r--lib/doh.h2
2 files changed, 15 insertions, 13 deletions
diff --git a/lib/doh.c b/lib/doh.c
index dd2bbf125..10867cc34 100644
--- a/lib/doh.c
+++ b/lib/doh.c
@@ -174,7 +174,7 @@ UNITTEST DOHcode doh_encode(const char *host,
}
static size_t
-doh_write_cb(void *contents, size_t size, size_t nmemb, void *userp)
+doh_write_cb(const void *contents, size_t size, size_t nmemb, void *userp)
{
size_t realsize = size * nmemb;
struct dohresponse *mem = (struct dohresponse *)userp;
@@ -439,7 +439,7 @@ Curl_addrinfo *Curl_doh(struct connectdata *conn,
return NULL;
}
-static DOHcode skipqname(unsigned char *doh, size_t dohlen,
+static DOHcode skipqname(const unsigned char *doh, size_t dohlen,
unsigned int *indexp)
{
unsigned char length;
@@ -463,12 +463,12 @@ static DOHcode skipqname(unsigned char *doh, size_t dohlen,
return DOH_OK;
}
-static unsigned short get16bit(unsigned char *doh, int index)
+static unsigned short get16bit(const unsigned char *doh, int index)
{
return (unsigned short)((doh[index] << 8) | doh[index + 1]);
}
-static unsigned int get32bit(unsigned char *doh, int index)
+static unsigned int get32bit(const unsigned char *doh, int index)
{
/* make clang and gcc optimize this to bswap by incrementing
the pointer first. */
@@ -480,7 +480,7 @@ static unsigned int get32bit(unsigned char *doh, int index)
return ( (unsigned)doh[0] << 24) | (doh[1] << 16) |(doh[2] << 8) | doh[3];
}
-static DOHcode store_a(unsigned char *doh, int index, struct dohentry *d)
+static DOHcode store_a(const unsigned char *doh, int index, struct dohentry *d)
{
/* silently ignore addresses over the limit */
if(d->numaddr < DOH_MAX_ADDR) {
@@ -492,7 +492,9 @@ static DOHcode store_a(unsigned char *doh, int index, struct dohentry *d)
return DOH_OK;
}
-static DOHcode store_aaaa(unsigned char *doh, int index, struct dohentry *d)
+static DOHcode store_aaaa(const unsigned char *doh,
+ int index,
+ struct dohentry *d)
{
/* silently ignore addresses over the limit */
if(d->numaddr < DOH_MAX_ADDR) {
@@ -505,7 +507,7 @@ static DOHcode store_aaaa(unsigned char *doh, int index, struct dohentry *d)
}
static DOHcode cnameappend(struct cnamestore *c,
- unsigned char *src,
+ const unsigned char *src,
size_t len)
{
if(!c->alloc) {
@@ -530,7 +532,7 @@ static DOHcode cnameappend(struct cnamestore *c,
return DOH_OK;
}
-static DOHcode store_cname(unsigned char *doh,
+static DOHcode store_cname(const unsigned char *doh,
size_t dohlen,
unsigned int index,
struct dohentry *d)
@@ -585,7 +587,7 @@ static DOHcode store_cname(unsigned char *doh,
return DOH_OK;
}
-static DOHcode rdata(unsigned char *doh,
+static DOHcode rdata(const unsigned char *doh,
size_t dohlen,
unsigned short rdlength,
unsigned short type,
@@ -635,7 +637,7 @@ static void init_dohentry(struct dohentry *de)
}
-UNITTEST DOHcode doh_decode(unsigned char *doh,
+UNITTEST DOHcode doh_decode(const unsigned char *doh,
size_t dohlen,
DNStype dnstype,
struct dohentry *d)
@@ -775,12 +777,12 @@ UNITTEST DOHcode doh_decode(unsigned char *doh,
#ifndef CURL_DISABLE_VERBOSE_STRINGS
static void showdoh(struct Curl_easy *data,
- struct dohentry *d)
+ const struct dohentry *d)
{
int i;
infof(data, "TTL: %u seconds\n", d->ttl);
for(i = 0; i < d->numaddr; i++) {
- struct dohaddr *a = &d->addr[i];
+ const struct dohaddr *a = &d->addr[i];
if(a->type == DNS_TYPE_A) {
infof(data, "DOH A: %u.%u.%u.%u\n",
a->ip.v4[0], a->ip.v4[1],
diff --git a/lib/doh.h b/lib/doh.h
index fc053eddf..97d459f09 100644
--- a/lib/doh.h
+++ b/lib/doh.h
@@ -99,7 +99,7 @@ DOHcode doh_encode(const char *host,
unsigned char *dnsp, /* buffer */
size_t len, /* buffer size */
size_t *olen); /* output length */
-DOHcode doh_decode(unsigned char *doh,
+DOHcode doh_decode(const unsigned char *doh,
size_t dohlen,
DNStype dnstype,
struct dohentry *d);