skalibs

Mirror/fork of https://skarnet.org/software/skalibs/
git clone https://ccx.te2000.cz/git/skalibs
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textclient_command.c (483B)

      1 /* ISC license. */
      2 
      3 #include <sys/uio.h>
      4 #include <errno.h>
      5 
      6 #include <skalibs/textclient.h>
      7 #include <skalibs/posixishard.h>
      8 
      9 int textclient_command (textclient *a, char const *s, size_t len, tain const *deadline, tain *stamp)
     10 {
     11   struct iovec ans ;
     12   if (!textclient_exchange(a, s, len, &ans, deadline, stamp)) return 0 ;
     13   if (ans.iov_len != 1) return (errno = EPROTO, 0) ;
     14   if (*(unsigned char *)ans.iov_base) return (errno = *(unsigned char *)ans.iov_base, 0) ;
     15   return 1 ;
     16 }