From 49cb17940e403431566dc7b5a312624f14eb25d0 Mon Sep 17 00:00:00 2001 From: Laurent Bercot Date: Fri, 23 Jan 2015 23:47:14 +0000 Subject: Added fdholder, beta. Documentation will come next. --- src/fdholder/s6-fdholder-listc.c | 61 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 src/fdholder/s6-fdholder-listc.c (limited to 'src/fdholder/s6-fdholder-listc.c') diff --git a/src/fdholder/s6-fdholder-listc.c b/src/fdholder/s6-fdholder-listc.c new file mode 100644 index 0000000..fefb676 --- /dev/null +++ b/src/fdholder/s6-fdholder-listc.c @@ -0,0 +1,61 @@ +/* ISC license. */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define USAGE "s6-fdholder-listc [ -t timeout ]" +#define dieusage() strerr_dieusage(100, USAGE) + +int main (int argc, char const *const *argv, char const *const *envp) +{ + s6_fdholder_t a = S6_FDHOLDER_ZERO ; + stralloc sa = STRALLOC_ZERO, sb = STRALLOC_ZERO ; + unsigned int pos = 0 ; + int n ; + tain_t deadline ; + PROG = "s6-fdholder-listc" ; + { + unsigned int t = 0 ; + subgetopt_t l = SUBGETOPT_ZERO ; + for (;;) + { + register int opt = subgetopt_r(argc, argv, "t:", &l) ; + if (opt == -1) break ; + switch (opt) + { + case 't' : if (!uint0_scan(l.arg, &t)) dieusage() ; break ; + default : dieusage() ; + } + } + argc -= l.ind ; argv += l.ind ; + if (t) tain_from_millisecs(&deadline, t) ; + else deadline = tain_infinite_relative ; + } + + s6_fdholder_init(&a, 6) ; + tain_now_g() ; + tain_add_g(&deadline, &deadline) ; + n = s6_fdholder_list_g(&a, &sa, &deadline) ; + if (n < 0) strerr_diefu1sys(111, "get fd list") ; + while (n--) + { + register unsigned int len = str_len(sa.s + pos) ; + sb.len = 0 ; + if (!string_quote_nodelim_mustquote(&sb, sa.s + pos, len, 0, 0)) + strerr_diefu1sys(111, "quote string") ; + if (buffer_put(buffer_1, sb.s, sb.len) < sb.len || buffer_put(buffer_1, "\n", 1) < 1) + strerr_diefu1sys(111, "buffer_put") ; + pos += len+1 ; + } + stralloc_free(&sb) ; + stralloc_free(&sa) ; + if (!buffer_flush(buffer_1)) strerr_diefu1sys(111, "write to stdout") ; + return 0 ; +} -- cgit v1.3.1