X-Git-Url: https://git.xinqibao.xyz/slstatus.git/blobdiff_plain/80fc20d1d69b14f36ad9bb64d8af38481cbf1ff5..fc0dde5a60a066b8506834f508aebf0ea5055990:/util.c

diff --git a/util.c b/util.c
index 08f14ff..6dd08d7 100644
--- a/util.c
+++ b/util.c
@@ -48,6 +48,27 @@ die(const char *fmt, ...)
 	exit(1);
 }
 
+int
+esnprintf(char *str, size_t size, const char *fmt, ...)
+{
+	va_list ap;
+	int ret;
+
+	va_start(ap, fmt);
+	ret = vsnprintf(str, size, fmt, ap);
+	va_end(ap);
+
+	if (ret < 0) {
+		warn("snprintf:");
+		return -1;
+	} else if ((size_t)ret >= size) {
+		warn("snprintf: Output truncated");
+		return -1;
+	}
+
+	return ret;
+}
+
 const char *
 bprintf(const char *fmt, ...)
 {
@@ -65,6 +86,38 @@ bprintf(const char *fmt, ...)
 	return buf;
 }
 
+const char *
+fmt_human_2(size_t num)
+{
+	size_t i;
+	double scaled;
+	const char *prefix[] = { "", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei",
+	                         "Zi", "Yi" };
+
+	scaled = num;
+	for (i = 0; i < LEN(prefix) && scaled >= 1024; i++) {
+		scaled /= 1024.0;
+	}
+
+	return bprintf("%.1f%s", scaled, prefix[i]);
+}
+
+const char *
+fmt_human_10(size_t num)
+{
+	size_t i;
+	double scaled;
+	const char *prefix[] = { "", "K", "M", "G", "T", "P", "E",
+	                         "Z", "Y" };
+
+	scaled = num;
+	for (i = 0; i < LEN(prefix) && scaled >= 1000; i++) {
+		scaled /= 1000.0;
+	}
+
+	return bprintf("%.1f%s", scaled, prefix[i]);
+}
+
 int
 pscanf(const char *path, const char *fmt, ...)
 {