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authorEric Andersen <andersen@codepoet.org>2002-03-31 01:56:09 +0000
committerEric Andersen <andersen@codepoet.org>2002-03-31 01:56:09 +0000
commit9116dff92e5b362011431f073fe6aa98327be254 (patch)
tree2e7c935ef2a7d79c17a0bb47b5c1663ed465336a /libc/sysdeps/linux/common/syscalls.c
parent8ba7d3bab5a6510fa5ee12d033eb0a26966ea3d3 (diff)
Add support for getrlimit64 and setrlimit64. Fix some problems
with the getrlimit and setrlimit syscalls. -Erik
Diffstat (limited to 'libc/sysdeps/linux/common/syscalls.c')
-rw-r--r--libc/sysdeps/linux/common/syscalls.c56
1 files changed, 54 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/common/syscalls.c b/libc/sysdeps/linux/common/syscalls.c
index 9c3453e8b..974cf5f70 100644
--- a/libc/sysdeps/linux/common/syscalls.c
+++ b/libc/sysdeps/linux/common/syscalls.c
@@ -566,18 +566,59 @@ _syscall2(int, sethostname, const char *, name, size_t, len);
#endif
//#define __NR_setrlimit 75
+#ifndef __NR_ugetrlimit
+/* Only wrap setrlimit if the new ugetrlimit is not present */
+#ifdef L___setrlimit
+#define __NR___setrlimit __NR_setrlimit
+#include <unistd.h>
+#include <sys/resource.h>
+_syscall2(int, __setrlimit, int, resource, const struct rlimit *, rlim);
+int setrlimit (enum __rlimit_resource resource, const struct rlimit *rlimits)
+{
+ struct rlimit rlimits_small;
+ /* We might have to correct the limits values. Since the old values
+ * were signed the new values might be too large. */
+ rlimits_small.rlim_cur = MIN ((unsigned long int) rlimits->rlim_cur,
+ RLIM_INFINITY >> 1);
+ rlimits_small.rlim_max = MIN ((unsigned long int) rlimits->rlim_max,
+ RLIM_INFINITY >> 1);
+ return(__setrlimit(resource, &rlimits_small));
+}
+#endif
+#else /* We don't need to wrap setrlimit */
#ifdef L_setrlimit
#include <unistd.h>
#include <sys/resource.h>
_syscall2(int, setrlimit, int, resource, const struct rlimit *, rlim);
#endif
+#endif /* __NR_setrlimit */
//#define __NR_getrlimit 76
-#ifdef L_getrlimit
+#ifdef L___getrlimit
+/* Only include the old getrlimit if the new one (ugetrlimit) is not around */
+#ifndef __NR_ugetrlimit
+#define __NR___getrlimit __NR_getrlimit
#include <unistd.h>
#include <sys/resource.h>
-_syscall2(int, getrlimit, int, resource, struct rlimit *, rlim);
+_syscall2(int, __getrlimit, int, resource, struct rlimit *, rlim);
+int getrlimit (enum __rlimit_resource resource, struct rlimit *rlim)
+{
+ int result;
+ result = __getrlimit(resource, rlim);
+
+ if (result == -1)
+ return result;
+
+ /* We might have to correct the limits values. Since the old values
+ * were signed the infinity value is too small. */
+ if (rlimits->rlim_cur == RLIM_INFINITY >> 1)
+ rlimits->rlim_cur = RLIM_INFINITY;
+ if (rlimits->rlim_max == RLIM_INFINITY >> 1)
+ rlimits->rlim_max = RLIM_INFINITY;
+ return result;
+}
#endif
+#endif /* __NR_getrlimit */
//#define __NR_getrusage 77
#ifdef L_getrusage
@@ -1404,6 +1445,17 @@ _syscall4(ssize_t,sendfile, int, out_fd, int, in_fd, __off_t *, offset, size_t,
//See sysdeps/linux/<arch>vfork.[cS] for architecture specific implementation...
//#define __NR_ugetrlimit 191 /* SuS compliant getrlimit */
+#ifdef L___ugetrlimit
+#define __NR___ugetrlimit __NR_ugetrlimit
+#include <unistd.h>
+#include <sys/resource.h>
+_syscall2(int, __ugetrlimit, enum __rlimit_resource, resource, struct rlimit *, rlim);
+int getrlimit (__rlimit_resource_t resource, struct rlimit *rlimits)
+{
+ return(__ugetrlimit(resource, rlimits));
+}
+#endif
+
//#define __NR_mmap2 192