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libosmocore
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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'.
This commit is contained in:
Harald Welte 2012-08-17 12:17:38 +02:00
parent 08b286277b
commit fab0ae9b43
2 changed files with 59 additions and 0 deletions
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5
include/osmocom/vty/misc.h
View File

@ -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);

54
src/vty/utils.c
View File

@ -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 @@ void vty_out_rate_ctr_group(struct vty *vty, const char *prefix,
};
}
/*! \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;
}
/*! @} */