diff options
Diffstat (limited to 'xmalloc.c')
-rw-r--r-- | xmalloc.c | 32 |
1 files changed, 32 insertions, 0 deletions
@@ -31,6 +31,22 @@ xmalloc(size_t size) } void * +xcalloc(size_t nmemb, size_t size) +{ + void *ptr; + + if (nmemb && size && SIZE_T_MAX / nmemb < size) + fatal("xcalloc: nmemb * size > SIZE_T_MAX"); + if (size == 0 || nmemb == 0) + fatal("xcalloc: zero size"); + ptr = calloc(nmemb, size); + if (ptr == NULL) + fatal("xcalloc: out of memory (allocating %lu bytes)", + (u_long)(size * nmemb)); + return ptr; +} + +void * xrealloc(void *ptr, size_t new_size) { void *new_ptr; @@ -65,3 +81,19 @@ xstrdup(const char *str) strlcpy(cp, str, len); return cp; } + +int +xasprintf(char **ret, const char *fmt, ...) +{ + va_list ap; + int i; + + va_start(ap, fmt); + i = vasprintf(ret, fmt, ap); + va_end(ap); + + if (i < 0 || *ret == NULL) + fatal("xasprintf: could not allocate memory"); + + return (i); +} |