Fixed several issues found using a coverity-scan

[proxmark3-svn] / client / cmdhfmf.c

diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c
index b66aa3a6d59d220d685c8b57ce657b3f415feee8..4b591f0f6195caf01c2f40d4ba1e2ca95779d02d 100644 (file)
--- a/client/cmdhfmf.c
+++ b/client/cmdhfmf.c
@@ -1004,6 +1004,16 @@ int CmdHF14AMfNested(const char *Cmd)
 \r
 int CmdHF14AMfChk(const char *Cmd)\r
 {\r
+       if (strlen(Cmd)<3) {\r
+               PrintAndLog("Usage:  hf mf chk <block number>|<*card memory> <key type (A/B/?)> [t] [<key (12 hex symbols)>] [<dic (*.dic)>]");\r
+               PrintAndLog("          * - all sectors");\r
+               PrintAndLog("card memory - 0 - MINI(320 bytes), 1 - 1K, 2 - 2K, 4 - 4K, <other> - 1K");\r
+               PrintAndLog("d - write keys to binary file\n");\r
+               PrintAndLog("      sample: hf mf chk 0 A 1234567890ab keys.dic");\r
+               PrintAndLog("              hf mf chk *1 ? t");\r
+               return 0;\r
+       }       \r
+\r
        FILE * f;\r
        char filename[256]={0};\r
        char buf[13];\r
@@ -1021,6 +1031,7 @@ int CmdHF14AMfChk(const char *Cmd)
        int transferToEml = 0;\r
        int createDumpFile = 0;\r
 \r
+\r
        keyBlock = calloc(stKeyBlock, 6);\r
        if (keyBlock == NULL) return 1;\r
 \r
@@ -1047,15 +1058,6 @@ int CmdHF14AMfChk(const char *Cmd)
                num_to_bytes(defaultKeys[defaultKeyCounter], 6, (uint8_t*)(keyBlock + defaultKeyCounter * 6));\r
        }\r
        \r
-       if (strlen(Cmd)<3) {\r
-               PrintAndLog("Usage:  hf mf chk <block number>|<*card memory> <key type (A/B/?)> [t] [<key (12 hex symbols)>] [<dic (*.dic)>]");\r
-               PrintAndLog("          * - all sectors");\r
-               PrintAndLog("card memory - 0 - MINI(320 bytes), 1 - 1K, 2 - 2K, 4 - 4K, <other> - 1K");\r
-               PrintAndLog("d - write keys to binary file\n");\r
-               PrintAndLog("      sample: hf mf chk 0 A 1234567890ab keys.dic");\r
-               PrintAndLog("              hf mf chk *1 ? t");\r
-               return 0;\r
-       }       \r
        \r
        if (param_getchar(Cmd, 0)=='*') {\r
                blockNo = 3;\r
@@ -1144,11 +1146,11 @@ int CmdHF14AMfChk(const char *Cmd)
                                        keycnt++;\r
                                        memset(buf, 0, sizeof(buf));\r
                                }\r
+                               fclose(f);\r
                        } else {\r
                                PrintAndLog("File: %s: not found or locked.", filename);\r
                                free(keyBlock);\r
                                return 1;\r
-                       fclose(f);\r
                        }\r
                }\r
        }\r
@@ -1586,8 +1588,8 @@ int CmdHF14AMfEKeyPrn(const char *Cmd)
 int CmdHF14AMfCSetUID(const char *Cmd)\r
 {\r
        uint8_t wipeCard = 0;\r
-       uint8_t uid[8];\r
-       uint8_t oldUid[8];\r
+       uint8_t uid[8] = {0};\r
+       uint8_t oldUid[8]= {0};\r
        int res;\r
 \r
        if (strlen(Cmd) < 1 || param_getchar(Cmd, 0) == 'h') {\r