Make a Age header from formatting result.
The function http_age_format() makes a new Age header object using formatting result as its value. The function first prints the arguments according to the format fmt specified. Then it allocates a new header structure, and uses the formatting result as the header value.
|home ||memory home used to allocate new header structure. |
|fmt ||string used as a printf()-style format |
|... ||argument list for format|
- This function is usually implemented as a macro calling msg_header_format().
- The function http_age_format() returns a pointer to newly makes header structure, or NULL upon an error.