diff options
Diffstat (limited to 'src/libstddjb/slurpn.c')
-rw-r--r-- | src/libstddjb/slurpn.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/src/libstddjb/slurpn.c b/src/libstddjb/slurpn.c index ee5157f..317e300 100644 --- a/src/libstddjb/slurpn.c +++ b/src/libstddjb/slurpn.c @@ -11,25 +11,18 @@ int slurpn (int fd, stralloc *sa, size_t max) { - size_t sabase = sa->len ; - int wasnull = !sa->s ; for (;;) { ssize_t r ; - size_t n = max && sa->len - sabase + N > max ? max - (sa->len - sabase) : N ; - if (!n) { errno = ENOBUFS ; goto err ; } + size_t n = max && sa->len + N > max ? max - sa->len : N ; + if (!n) return (errno = ENOBUFS, 0) ; if (!stralloc_readyplus(sa, n)) break ; r = fd_read(fd, sa->s + sa->len, n) ; switch (r) { - case -1 : goto err ; + case -1 : return 0 ; case 0 : return 1 ; default : sa->len += r ; } } - -err: - if (wasnull) stralloc_free(sa) ; - else sa->len = sabase ; - return 0 ; } |