about summary refs log tree commit diff
path: root/src/misc/getsubopt.c
diff options
context:
space:
mode:
authorRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
committerRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
commit0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 (patch)
tree6eaef0d8a720fa3da580de87b647fff796fe80b3 /src/misc/getsubopt.c
downloadmusl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.gz
musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.xz
musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.zip
initial check-in, version 0.5.0 v0.5.0
Diffstat (limited to 'src/misc/getsubopt.c')
-rw-r--r--src/misc/getsubopt.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/misc/getsubopt.c b/src/misc/getsubopt.c
new file mode 100644
index 00000000..dac9bf9e
--- /dev/null
+++ b/src/misc/getsubopt.c
@@ -0,0 +1,23 @@
+#include <stdlib.h>
+#include <string.h>
+
+int getsubopt(char **opt, char *const *keys, char **val)
+{
+	char *s = *opt;
+	int i;
+
+	*val = NULL;
+	*opt = strchr(s, ',');
+	if (*opt) *(*opt)++ = 0;
+	else *opt = s + strlen(s);
+
+	for (i=0; keys[i]; i++) {
+		size_t l = strlen(keys[i]);
+		if (strncmp(keys[i], s, l)) continue;
+		if (s[l] == '=')
+			*val = s + l;
+		else if (s[l]) continue;
+		return i;
+	}
+	return -1;
+}