skalibs

Mirror/fork of https://skarnet.org/software/skalibs/
git clone https://ccx.te2000.cz/git/skalibs
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textmessage_put.c (526B)

      1 /* ISC license. */
      2 
      3 #include <sys/uio.h>
      4 #include <errno.h>
      5 #include <stdint.h>
      6 #include <skalibs/uint32.h>
      7 #include <skalibs/bufalloc.h>
      8 #include <skalibs/textmessage.h>
      9 
     10 int textmessage_put (textmessage_sender *ts, char const *s, size_t len)
     11 {
     12   char pack[4] ;
     13   struct iovec v[2] =
     14   {
     15     { .iov_base = pack, .iov_len = 4 },
     16     { .iov_base = (char *)s, .iov_len = len }
     17   } ;
     18   if (len > TEXTMESSAGE_MAXLEN) return (errno = EINVAL, 0) ;
     19   uint32_pack_big(pack, (uint32_t)len) ;
     20   return bufalloc_putv(&ts->out, v, 2) ;
     21 }