RfidResearchGroup/proxmark3
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FIX, Coverity, Argument can't be negative. CID# 212322, ftell(f) can be negative. Not allowed in malloc...

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This commit is contained in:
iceman1001 2016-01-12 22:43:28 +01:00
parent 7144c99b07
commit 9c4e28a445
1 changed files with 8 additions and 4 deletions

10
client/cmdhficlass.c
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@ -269,8 +269,7 @@ int CmdHFiClassELoad(const char *Cmd) {
//File handling and reading //File handling and reading
FILE *f; FILE *f;
char filename[FILE_PATH_SIZE]; char filename[FILE_PATH_SIZE];
if(opt == 'f' && param_getstr(Cmd, 1, filename) > 0) if(opt == 'f' && param_getstr(Cmd, 1, filename) > 0) {
{
f = fopen(filename, "rb"); f = fopen(filename, "rb");
} else { } else {
return hf_iclass_eload_usage(); return hf_iclass_eload_usage();
@ -285,9 +284,14 @@ int CmdHFiClassELoad(const char *Cmd) {
long fsize = ftell(f); long fsize = ftell(f);
fseek(f, 0, SEEK_SET); fseek(f, 0, SEEK_SET);
uint8_t *dump = malloc(fsize); if (fsize < 0) {
prnlog("Error, when getting filesize");
return 1;
}
uint8_t *dump = malloc(fsize);
size_t bytes_read = fread(dump, 1, fsize, f); size_t bytes_read = fread(dump, 1, fsize, f);
fclose(f); fclose(f);