Index: fusl/src/misc/setrlimit.c |
diff --git a/fusl/src/misc/setrlimit.c b/fusl/src/misc/setrlimit.c |
new file mode 100644 |
index 0000000000000000000000000000000000000000..7130d719e6fec053ca848590f0ea15712adee9f4 |
--- /dev/null |
+++ b/fusl/src/misc/setrlimit.c |
@@ -0,0 +1,50 @@ |
+#include <sys/resource.h> |
+#include <errno.h> |
+#include "syscall.h" |
+#include "libc.h" |
+ |
+#define MIN(a, b) ((a)<(b) ? (a) : (b)) |
+#define FIX(x) do{ if ((x)>=SYSCALL_RLIM_INFINITY) (x)=RLIM_INFINITY; }while(0) |
+ |
+int __setrlimit(int resource, const struct rlimit *rlim) |
+{ |
+ unsigned long k_rlim[2]; |
+ struct rlimit tmp; |
+ if (SYSCALL_RLIM_INFINITY != RLIM_INFINITY) { |
+ tmp = *rlim; |
+ FIX(tmp.rlim_cur); |
+ FIX(tmp.rlim_max); |
+ rlim = &tmp; |
+ } |
+ int ret = __syscall(SYS_prlimit64, 0, resource, rlim, 0); |
+ if (ret != -ENOSYS) return ret; |
+ k_rlim[0] = MIN(rlim->rlim_cur, MIN(-1UL, SYSCALL_RLIM_INFINITY)); |
+ k_rlim[1] = MIN(rlim->rlim_max, MIN(-1UL, SYSCALL_RLIM_INFINITY)); |
+ 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>0) return; |
+ c->err = -__setrlimit(c->res, c->rlim); |
+} |
+ |
+int setrlimit(int resource, const struct rlimit *rlim) |
+{ |
+ struct ctx c = { .res = resource, .rlim = rlim, .err = -1 }; |
+ __synccall(do_setrlimit, &c); |
+ if (c.err) { |
+ if (c.err>0) errno = c.err; |
+ return -1; |
+ } |
+ return 0; |
+} |
+ |
+LFS64(setrlimit); |