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Add alloca_strndup() and strncpy_nul()

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This commit is contained in:
Andrew Bettison 2014-11-19 10:45:40 +10:30
parent 6bf4cf0735
commit bc197ef01d
1 changed files with 12 additions and 1 deletions
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13
str.h
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@ -36,7 +36,18 @@
/* -------------------- Useful functions and macros -------------------- */
#define alloca_strdup(str) strcpy(alloca(strlen(str) + 1), (str))
#define alloca_strdup(str) strcpy(alloca(strlen(str) + 1), (str))
#define alloca_strndup(str,len) strncpy_nul(alloca((len) + 1), (str), (len) + 1)
/* Like strncpy(3) but ensures the string is nul terminated.
*
* @author Andrew Bettison <andrew@servalproject.com>
*/
__SERVAL_DNA__STR_INLINE char *strncpy_nul(char *dst, const char *src, size_t n)
{
strncpy(dst, src, n - 1)[n - 1] = '\0';
return dst;
}
int is_all_matching(const unsigned char *ptr, size_t len, unsigned char value);