X-Git-Url: http://git.cascardo.eti.br/?p=cascardo%2Fdeclara.git;a=blobdiff_plain;f=lib%2Fattr.c;fp=lib%2Fattr.c;h=e74ab0a23bdfe20f9d36fd2dba0ccf84cb9c2992;hp=3f98dbc3861bf5d662d9d17452b4dabb5499037b;hb=d5c812c549b81bec3650c72f16d56b8d2302c1bb;hpb=6ec61d7d67646324136872daee17d75875b0d39d

diff --git a/lib/attr.c b/lib/attr.c
index 3f98dbc..e74ab0a 100644
--- a/lib/attr.c
+++ b/lib/attr.c
@@ -62,3 +62,29 @@ int attr_out(FILE *f, struct pmhash *attr, char *key, int size)
 {
 	return fprintf(f, "%-*.*s", size, size, attr_get(attr, key) ?: "");
 }
+
+int attr_out_int(FILE *f, struct pmhash *attr, char *key, int size)
+{
+
+	/*
+	 * As there is no validation of the string when parsed, there is no
+	 * point returning any error when there is a parsing failure here. We
+	 * emit only a warning, then. Unfortunately, there is no line
+	 * information here.
+	 */
+
+	char *val;
+	unsigned long long num = 0;
+	val = attr_get(attr, key);
+	if (val) {
+		char *end;
+		errno = 0;
+		num = strtoull(val, &end, 0);
+		if ((end && *end != '\0') || errno) {
+			fprintf(stderr, "Found invalid value in attribute %s: %s: not a number\n", key, val);
+			num = 0;
+		}
+	}
+
+	return fprintf(f, "%0*llu", size, num);
+}