X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=blobdiff_plain;f=src%2Fmisc%2Fsetrlimit.c;h=ddc13e98bf9e8272c17fe4b074ac0a86cc7cc8d5;hp=68bd9d749fc5954aacb12bbb675675f4662cc153;hb=507faa63cb12571c14d66eb37dedbe6adbbf40a8;hpb=aa398f56fa398f2202b04e82c67f822f3233786f

diff --git a/src/misc/setrlimit.c b/src/misc/setrlimit.c
index 68bd9d74..ddc13e98 100644
--- a/src/misc/setrlimit.c
+++ b/src/misc/setrlimit.c
@@ -1,11 +1,42 @@
 #include <sys/resource.h>
+#include <errno.h>
 #include "syscall.h"
 #include "libc.h"
 
+#define MIN(a, b) ((a)<(b) ? (a) : (b))
+
+int __setrlimit(int resource, const struct rlimit *rlim)
+{
+	unsigned long k_rlim[2];
+	int ret = __syscall(SYS_prlimit64, 0, resource, rlim, 0);
+	if (ret != -ENOSYS) return ret;
+	k_rlim[0] = MIN(rlim->rlim_cur, -1UL);
+	k_rlim[1] = MIN(rlim->rlim_max, -1UL);
+	return __syscall(SYS_setrlimit, resource, k_rlim);
+}
+
+struct ctx {
+	const struct rlimit *rlim;
+	int res;
+	int err;
+};
+
+static void do_setrlimit(void *p)
+{
+	struct ctx *c = p;
+	if (c->err) return;
+	c->err = -__setrlimit(c->res, c->rlim);
+}
+
 int setrlimit(int resource, const struct rlimit *rlim)
 {
-	long k_rlim[2] = { rlim->rlim_cur, rlim->rlim_max };
-	return syscall(SYS_setrlimit, resource, k_rlim);
+	struct ctx c = { .res = resource, .rlim = rlim };
+	__synccall(do_setrlimit, &c);
+	if (c.err) {
+		errno = c.err;
+		return -1;
+	}
+	return 0;
 }
 
 LFS64(setrlimit);