Translation

Functions
char *	enum2str (int value, const struct enums *enums, size_t size, int max)
	Returns the textual representation of an numeric identifier (enum) More...
char *	flags2str (uint32_t bits, const struct flags *flags, size_t size)
	Convert Flags in ist textual represenation. More...

Detailed Description

Function Documentation

char* enum2str	(	int	value,
		const struct enums *	enums,
		size_t	size,
		int	max
	)

Returns the textual representation of an numeric identifier (enum)

Parameters

value	the numeric identifier (value) of an enum
enums	A array with the textual representation of the int value. The Last entry in the array bust be {0}, because the function will stop here. The index af an array entry must be the same as param value.
size	the size of the retuned char pointer. Must be big enough for the largest entry in the array.

Return values

NULL	if not found

Returns

A char pointer with the textual representation of value ending with \0.

Definition at line 173 of file netlink.c.

References enums::name.

Referenced by nl_cb_list_entry().

{
    char *str = malloc(size+1); /* +1 for \0 */
    str[0] = '\0';

    /* Iterate until the end of value or the end of enums array */
    for (int i = 0; i <= max && enums[i].name != 0; ++i) {
        if (i == value) {
            strcat(str, enums[i].name);
            return str;
        }
    }

    free(str);
    return NULL;
}

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char * flags2str	(	uint32_t	bits,
		const struct flags *	flags,
		size_t	size
	)

Convert Flags in ist textual represenation.

Parameters

bits	The bits variable which will be checked with the highest bit
flags	An Array with its textual representation the index of the one array entry must be the same as the position in param bits from the left. The Last entry in the array bust be {0}, because the function will stop here.
size	the size of the retuned char pointer. Must be big enough for all flags names plus 2 for < and > plus 1 for ',' after each flag plus 1 for \0

Returns

a char pointer in the form <Flag1,Flag2,Flag3,...> if the flags flag1, flag2, flag3, ... are set. The Pointer has a ending \0.

Definition at line 117 of file netlink.c.

Referenced by nl_cb_list_entry().

{
    char *str = malloc(size);
    str[0] = '<';
    str[1] = '\0';

    /* Iterate until the end of bits or thh end of flags array */
    for (int i = 0; i < sizeof(uint32_t) * 8 && flags[i].name != 0; ++i) {
        // extract the i-th bit
        int b = ((bits >> i) & 1);
        // b will be 1 if i-th bit is set, 0 otherwise

        if (b == 1) {
            strcat(str, flags[i].name);
            strcat(str, ",");
        }
    }
    int len = strlen(str);

    if (len <= 1) {
        strcat(str, ">");
    } else {
        str[len-1] = '>'; /* replace ',' with '>' */
    }

    return str;
}

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