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solana-program-library
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Fix cross-program-invocation C example 

Correctly check if deriving the PDA with the given seed was successful.
Don't pass the system program pubkey to the allocate instruction: the first account passed must be the one to be allocated.
This commit is contained in:
Christian Machacek 2021-05-08 13:39:00 +02:00 committed by Michael Vines
parent f0b1cec4d8
commit 18d96ffce6
1 changed files with 2 additions and 3 deletions
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5
examples/c/src/cross-program-invocation/cross-program-invocation.c
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@ -22,7 +22,7 @@ extern uint64_t do_invoke(SolParameters *params) {
const SolSignerSeeds signers_seeds[] = {{seeds, SOL_ARRAY_SIZE(seeds)}};
SolPubkey expected_allocated_key;
if (SUCCESS == sol_create_program_address(seeds, SOL_ARRAY_SIZE(seeds),
if (SUCCESS != sol_create_program_address(seeds, SOL_ARRAY_SIZE(seeds),
params->program_id,
&expected_allocated_key)) {
return ERROR_INVALID_INSTRUCTION_DATA;
@ -31,8 +31,7 @@ extern uint64_t do_invoke(SolParameters *params) {
return ERROR_INVALID_ARGUMENT;
}
SolAccountMeta arguments[] = {{system_program_info->key, false, false},
{allocated_info->key, true, true}};
SolAccountMeta arguments[] = {{allocated_info->key, true, true}};
uint8_t data[4 + 8]; // Enough room for the Allocate instruction
*(uint16_t *)data = 8; // Allocate instruction enum value
*(uint64_t *)(data + 4) = SIZE; // Size to allocate