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Tell apart malloc failure from no application in mifare_application_write()

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Robert Clausecker 2014-03-19 18:20:38 +01:00 • committed by Philippe Teuwen
parent 3e53c7811a
commit 0ad6a09cda
1 changed files with 5 additions and 2 deletions
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7
libfreefare/mifare_application.c
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@ -265,8 +265,11 @@ mifare_application_write (MifareTag tag, Mad mad, const MadAid aid, const void *
MifareClassicSectorNumber *sectors = mifare_application_find (mad, aid); MifareClassicSectorNumber *sectors = mifare_application_find (mad, aid);
MifareClassicSectorNumber *s = sectors; MifareClassicSectorNumber *s = sectors;
if (!sectors) if (!sectors) {
return errno = EBADF, -1; /* mifare_application_find may also fail if malloc() fails */
if (errno != ENOMEM) errno = EBADF;
return -1;
}
while (*s && nbytes && (res >= 0)) { while (*s && nbytes && (res >= 0)) {
MifareClassicBlockNumber first_block = mifare_classic_sector_first_block (*s); MifareClassicBlockNumber first_block = mifare_classic_sector_first_block (*s);