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-rw-r--r--src/utils.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/src/utils.c b/src/utils.c
index 02839c3..c675518 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -1473,3 +1473,41 @@ void print_todo(const char *format, struct todo *todo)
}
}
}
+
+#define VASPRINTF_INITIAL_BUFSIZE 128
+
+int
+vasprintf(char **str, const char *format, va_list ap)
+{
+ va_list ap2;
+ int n;
+
+ va_copy(ap2, ap);
+
+ *str = mem_malloc(VASPRINTF_INITIAL_BUFSIZE);
+ n = vsnprintf(*str, VASPRINTF_INITIAL_BUFSIZE, format, ap);
+ if (n >= VASPRINTF_INITIAL_BUFSIZE) {
+ *str = mem_realloc(*str, 1, n + 1);
+ n = vsnprintf(*str, n + 1, format, ap2);
+ }
+
+ if (n < 0) {
+ mem_free(*str);
+ *str = NULL;
+ }
+
+ return n;
+}
+
+int
+asprintf(char **str, const char *format, ...)
+{
+ va_list ap;
+ int n;
+
+ va_start(ap, format);
+ n = vasprintf(str, format, ap);
+ va_end(ap);
+
+ return n;
+}