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tools: acrn-crashlog: remove unsafe apis from android_events.c

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1. Refine strings operation.
2. Remove sscanf, sprintf and strlen.

Tracked-On: #1254
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Reviewed-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Chen Gang <gang.c.chen@intel.com>
This commit is contained in:
Liu, Xinwu
2018-09-25 10:08:24 +08:00
committed by Xie, Nanlin
parent 48ce01a52f
commit 5ecf1078ca
8 changed files with 269 additions and 311 deletions
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25
tools/acrn-crashlog/acrnprobe/include/android_events.h
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@@ -12,10 +12,10 @@ extern char *loop_dev;
#define VMEVT_HANDLED 0
#define VMEVT_DEFER -1
#define IGN_SPACES "%*[ ]"
#define IGN_RESTS "%*c"
#define IGN_ONEWORD "%*[^ ]" IGN_SPACES
#define VM_NAME_FMT "%8[A-Z0-9]" IGN_SPACES
#define IGN_SPACES "%*[[[:space:]]*]"
#define IGN_RESTS "%*[[.]*]"
#define IGN_ONEWORD "%*[[^[:space:]]*]" IGN_SPACES
#define VM_NAME_FMT "%[[A-Z0-9]{3}]" IGN_SPACES
/* These below macros were defined to obtain strings from
* andorid history_event
@@ -23,19 +23,16 @@ extern char *loop_dev;
#define ANDROID_WORD_LEN 32
/* Strings are constructed by A-Z, len < 8, e.g., CRASH REBOOT */
#define ANDROID_ENEVT_FMT "%8[A-Z]" IGN_SPACES
/* Hashkeys are constructed by 0-9&a-z, len = 20, e.g., 0b34ae1afba54aee5cd0.
* But the hashkey was printed to history_event file in andorid side by using
* format "%22s", so also using %22 here.
*/
#define ANDROID_KEY_FMT "%22[0-9a-z]" IGN_SPACES
#define ANDROID_ENEVT_FMT "%[[A-Z]{1,7}]" IGN_SPACES
/* Hashkeys are constructed by 0-9&a-z, len = 20, e.g., 0b34ae1afba54aee5cd0. */
#define ANDROID_KEY_FMT "%[[0-9a-z]{20}]" IGN_SPACES
/* Strings, e.g., 2017-11-11/03:12:59 */
#define ANDROID_LONGTIME_FMT "%20[0-9:/-]" IGN_SPACES
#define ANDROID_LONGTIME_FMT "%[[0-9:/-]{15,20}]" IGN_SPACES
/* It's a time or a subtype of event, e.g., JAVACRASH POWER-ON 424874:19:56 */
#define ANDROID_TYPE_FMT "%16[A-Z0-9_:-]" IGN_SPACES
#define ANDROID_LINE_REST_FMT "%4096[^\n]" IGN_RESTS
#define ANDROID_TYPE_FMT "%[[A-Z0-9_:-]{3,16}]" IGN_SPACES
#define ANDROID_LINE_REST_FMT "%[[^\n]*]" IGN_RESTS
void refresh_vm_history(const struct sender_t *sender,
int (*fn)(const char*, const struct vm_t *));
int (*fn)(const char*, size_t, const struct vm_t *));
#endif