import vty_cmd_string_from_valstr() from osmo-bts
This function is able to generate a VTY help string based on an
array of 'struct value_string'.
diff --git a/include/osmocom/vty/misc.h b/include/osmocom/vty/misc.h
index 8923473..e64aec7 100644
--- a/include/osmocom/vty/misc.h
+++ b/include/osmocom/vty/misc.h
@@ -4,6 +4,11 @@
#include <osmocom/vty/vty.h>
#include <osmocom/core/rate_ctr.h>
+#define VTY_DO_LOWER 1
+char *vty_cmd_string_from_valstr(void *ctx, const struct value_string *vals,
+ const char *prefix, const char *sep,
+ const char *end, int do_lower);
+
void vty_out_rate_ctr_group(struct vty *vty, const char *prefix,
struct rate_ctr_group *ctrg);
diff --git a/src/vty/utils.c b/src/vty/utils.c
index b3223ed..abf0ac4 100644
--- a/src/vty/utils.c
+++ b/src/vty/utils.c
@@ -22,11 +22,13 @@
#include <stdint.h>
#include <inttypes.h>
+#include <string.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/talloc.h>
#include <osmocom/core/timer.h>
#include <osmocom/core/rate_ctr.h>
+#include <osmocom/core/utils.h>
#include <osmocom/vty/vty.h>
@@ -60,4 +62,56 @@
};
}
+/*! \brief Generate a VTY command string from value_string */
+char *vty_cmd_string_from_valstr(void *ctx, const struct value_string *vals,
+ const char *prefix, const char *sep,
+ const char *end, int do_lower)
+{
+ int len = 0, offset = 0, ret, rem;
+ int size = strlen(prefix);
+ const struct value_string *vs;
+ char *str;
+
+ for (vs = vals; vs->value || vs->str; vs++)
+ size += strlen(vs->str) + 1;
+
+ rem = size;
+ str = talloc_zero_size(ctx, size);
+ if (!str)
+ return NULL;
+
+ ret = snprintf(str + offset, rem, prefix);
+ if (ret < 0)
+ goto err;
+ OSMO_SNPRINTF_RET(ret, rem, offset, len);
+
+ for (vs = vals; vs->value || vs->str; vs++) {
+ if (vs->str) {
+ int j, name_len = strlen(vs->str)+1;
+ char name[name_len];
+
+ for (j = 0; j < name_len; j++)
+ name[j] = do_lower ?
+ tolower(vs->str[j]) : vs->str[j];
+
+ name[name_len-1] = '\0';
+ ret = snprintf(str + offset, rem, "%s%s", name, sep);
+ if (ret < 0)
+ goto err;
+ OSMO_SNPRINTF_RET(ret, rem, offset, len);
+ }
+ }
+ offset--; /* to remove the trailing | */
+ rem++;
+
+ ret = snprintf(str + offset, rem, end);
+ if (ret < 0)
+ goto err;
+ OSMO_SNPRINTF_RET(ret, rem, offset, len);
+err:
+ str[size-1] = '\0';
+ return str;
+}
+
+
/*! @} */