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| author | Nick Mathewson <nickm@torproject.org> | 2006-07-23 05:32:35 +0000 |
|---|---|---|
| committer | Nick Mathewson <nickm@torproject.org> | 2006-07-23 05:32:35 +0000 |
| commit | 35960e11620d70c3ea48cac1d17cca9f02eabfbe (patch) | |
| tree | 99919c66f38a3316d5633587d6faca7181208664 /src/common/util.h | |
| parent | 1c266c33525f817cd6a1a55be1e83b0cd6eedae6 (diff) | |
| download | tor-35960e11620d70c3ea48cac1d17cca9f02eabfbe.tar.gz tor-35960e11620d70c3ea48cac1d17cca9f02eabfbe.zip | |
Add a mem_is_zero function (I think we will need this) and a STRUCT_OFFSET macro (we already need this).
svn:r6810
Diffstat (limited to 'src/common/util.h')
| -rw-r--r-- | src/common/util.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/common/util.h b/src/common/util.h index b61b399dec..bc21d2051f 100644 --- a/src/common/util.h +++ b/src/common/util.h @@ -88,6 +88,10 @@ extern int dmalloc_free(const char *file, const int line, void *pnt, #define tor_strndup(s, n) _tor_strndup(s, n DMALLOC_ARGS) #define tor_memdup(s, n) _tor_memdup(s, n DMALLOC_ARGS) +/** Return the offset of <b>member</b> within the type <b>tp</b>, in bytes */ +#define STRUCT_OFFSET(tp, member) \ + ((off_t) (((char*)&((tp*)0)->member)-(char*)0)) + /* String manipulation */ #define HEX_CHARACTERS "0123456789ABCDEFabcdef" void tor_strlower(char *s); @@ -114,6 +118,7 @@ const char *hex_str(const char *from, size_t fromlen); const char *eat_whitespace(const char *s); const char *eat_whitespace_no_nl(const char *s); const char *find_whitespace(const char *s); +int tor_mem_is_zero(const char *mem, size_t len); int tor_digest_is_zero(const char *digest); char *esc_for_log(const char *string); const char *escaped(const char *string); |