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PPP: Fix shadowing of global declaration

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Older compilers don't like variables with the same name as
global functions. md5.h contains a function md5(), rename
md5 variable in magic.c to md5_ctx.

lwip/src/netif/ppp/magic.c: In function `magic_churnrand':
lwip/src/netif/ppp/magic.c:105:15: error: declaration of `md5' shadows a global declaration [-Werror=shadow]
lwip/src/include/netif/ppp/polarssl/md5.h:88:6: error: shadowed declaration is here [-Werror=shadow]

lwip/src/netif/ppp/magic.c: In function `magic_random_bytes':
lwip/src/netif/ppp/magic.c:165:15: error: declaration of `md5' shadows a global declaration [-Werror=shadow]
lwip/src/include/netif/ppp/polarssl/md5.h:88:6: error: shadowed declaration is here [-Werror=shadow]
This commit is contained in:
Erik Ekman 2015-10-05 11:08:09 +02:00 committed by Sylvain Rochet
parent 1fef434f01
commit 673c6505ae
1 changed files with 6 additions and 6 deletions
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12
src/netif/ppp/magic.c
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@ -102,13 +102,13 @@ static u32_t magic_randomseed; /* Seed used for random number generation. */
* Ref: Applied Cryptography 2nd Ed. by Bruce Schneier p. 427
*/
static void magic_churnrand(char *rand_data, u32_t rand_len) {
md5_context md5;
md5_context md5_ctx;
/* LWIP_DEBUGF(LOG_INFO, ("magic_churnrand: %u@%P\n", rand_len, rand_data)); */
md5_starts(&md5);
md5_update(&md5, (u_char *)magic_randpool, sizeof(magic_randpool));
md5_starts(&md5_ctx);
md5_update(&md5_ctx, (u_char *)magic_randpool, sizeof(magic_randpool));
if (rand_data) {
md5_update(&md5, (u_char *)rand_data, rand_len);
md5_update(&md5_ctx, (u_char *)rand_data, rand_len);
} else {
struct {
/* INCLUDE fields for any system sources of randomness */
@ -123,9 +123,9 @@ static void magic_churnrand(char *rand_data, u32_t rand_len) {
sys_data.rand = LWIP_RAND();
#endif /* LWIP_RAND */
/* Load sys_data fields here. */
md5_update(&md5, (u_char *)&sys_data, sizeof(sys_data));
md5_update(&md5_ctx, (u_char *)&sys_data, sizeof(sys_data));
}
md5_finish(&md5, (u_char *)magic_randpool);
md5_finish(&md5_ctx, (u_char *)magic_randpool);
/* LWIP_DEBUGF(LOG_INFO, ("magic_churnrand: -> 0\n")); */
}