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path: root/src/fdholder/s6-fdholder-listc.c
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Diffstat (limited to 'src/fdholder/s6-fdholder-listc.c')
-rw-r--r--src/fdholder/s6-fdholder-listc.c61
1 files changed, 61 insertions, 0 deletions
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 <skalibs/uint.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/buffer.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/tai.h>
+#include <skalibs/stralloc.h>
+#include <skalibs/skamisc.h>
+#include <s6/s6-fdholder.h>
+
+#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 ;
+}