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-rw-r--r--plugins/runcmd.c23
1 files changed, 2 insertions, 21 deletions
diff --git a/plugins/runcmd.c b/plugins/runcmd.c
index 1a7c904..a7155d2 100644
--- a/plugins/runcmd.c
+++ b/plugins/runcmd.c
@@ -67,19 +67,6 @@
67 * occur in any number of threads simultaneously. */ 67 * occur in any number of threads simultaneously. */
68static pid_t *np_pids = NULL; 68static pid_t *np_pids = NULL;
69 69
70/* Try sysconf(_SC_OPEN_MAX) first, as it can be higher than OPEN_MAX.
71 * If that fails and the macro isn't defined, we fall back to an educated
72 * guess. There's no guarantee that our guess is adequate and the program
73 * will die with SIGSEGV if it isn't and the upper boundary is breached. */
74#ifdef _SC_OPEN_MAX
75static long maxfd = 0;
76#elif defined(OPEN_MAX)
77# define maxfd OPEN_MAX
78#else /* sysconf macro unavailable, so guess (may be wildly inaccurate) */
79# define maxfd 256
80#endif
81
82
83/** prototypes **/ 70/** prototypes **/
84static int np_runcmd_open(const char *, int *, int *) 71static int np_runcmd_open(const char *, int *, int *)
85 __attribute__((__nonnull__(1, 2, 3))); 72 __attribute__((__nonnull__(1, 2, 3)));
@@ -99,14 +86,8 @@ extern void die (int, const char *, ...)
99 * through this api and thus achieve async-safeness throughout the api */ 86 * through this api and thus achieve async-safeness throughout the api */
100void np_runcmd_init(void) 87void np_runcmd_init(void)
101{ 88{
102#ifndef maxfd 89 if(maxfd == 0)
103 if(!maxfd && (maxfd = sysconf(_SC_OPEN_MAX)) < 0) { 90 maxfd = open_max();
104 /* possibly log or emit a warning here, since there's no
105 * guarantee that our guess at maxfd will be adequate */
106 maxfd = 256;
107 }
108#endif
109
110 if(!np_pids) np_pids = calloc(maxfd, sizeof(pid_t)); 91 if(!np_pids) np_pids = calloc(maxfd, sizeof(pid_t));
111} 92}
112 93