git: 1663c003bcb6 - main - sysutils/scanmem: use correct types for parameters in ptrace(2) calls
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Date: Tue, 14 Feb 2023 03:31:55 UTC
The branch main has been updated by danfe:
URL: https://cgit.FreeBSD.org/ports/commit/?id=1663c003bcb6fbc65e71ed67e87dc4bd9a04d724
commit 1663c003bcb6fbc65e71ed67e87dc4bd9a04d724
Author: Alexey Dokuchaev <danfe@FreeBSD.org>
AuthorDate: 2023-02-14 03:31:04 +0000
Commit: Alexey Dokuchaev <danfe@FreeBSD.org>
CommitDate: 2023-02-14 03:31:04 +0000
sysutils/scanmem: use correct types for parameters in ptrace(2) calls
Clang 15 is now very strict about these bugs and would no longer accept
such broken code.
Reported by: pkg-fallout
---
sysutils/scanmem/files/patch-ptrace.c | 45 +++++++++++++++++++++++++++++++++++
1 file changed, 45 insertions(+)
diff --git a/sysutils/scanmem/files/patch-ptrace.c b/sysutils/scanmem/files/patch-ptrace.c
index b22f53a6a2ea..da80b94b2113 100644
--- a/sysutils/scanmem/files/patch-ptrace.c
+++ b/sysutils/scanmem/files/patch-ptrace.c
@@ -14,6 +14,42 @@
#include <time.h>
#include <sys/types.h>
+@@ -94,7 +96,7 @@ bool sm_attach(pid_t target)
+ int status;
+
+ /* attach to the target application, which should cause a SIGSTOP */
+- if (ptrace(PTRACE_ATTACH, target, NULL, NULL) == -1L) {
++ if (ptrace(PTRACE_ATTACH, target, NULL, 0) == -1L) {
+ show_error("failed to attach to %d, %s\n", target, strerror(errno));
+ return false;
+ }
+@@ -117,7 +119,7 @@ bool sm_attach(pid_t target)
+ bool sm_detach(pid_t target)
+ {
+ // addr is ignored on Linux, but should be 1 on FreeBSD in order to let the child process continue execution where it had been interrupted
+- return ptrace(PTRACE_DETACH, target, 1, 0) == 0;
++ return ptrace(PTRACE_DETACH, target, (caddr_t)1, 0) == 0;
+ }
+
+
+@@ -184,7 +186,7 @@ extern inline bool sm_peekdata(pid_t pid, const void *
+ for (i = 0; i < missing_bytes; i += sizeof(long))
+ {
+ const char *ptrace_address = peekbuf.base + peekbuf.size;
+- long ptraced_long = ptrace(PTRACE_PEEKDATA, pid, ptrace_address, NULL);
++ long ptraced_long = ptrace(PTRACE_PEEKDATA, pid, ptrace_address, 0);
+
+ /* check if ptrace() succeeded */
+ if (EXPECT(ptraced_long == -1L && errno != 0, false)) {
+@@ -195,7 +197,7 @@ extern inline bool sm_peekdata(pid_t pid, const void *
+ for (j = 1, errno = 0; j < sizeof(long); j++, errno = 0) {
+
+ /* try for a shifted ptrace - 'continue' (i.e. try an increased shift) if it fails */
+- if ((ptraced_long = ptrace(PTRACE_PEEKDATA, pid, ptrace_address - j, NULL)) == -1L &&
++ if ((ptraced_long = ptrace(PTRACE_PEEKDATA, pid, ptrace_address - j, 0)) == -1L &&
+ (errno == EIO || errno == EFAULT))
+ continue;
+
@@ -406,7 +408,7 @@ bool sm_checkmatches(globals_t *vars,
return sm_detach(vars->target);
}
@@ -50,3 +86,12 @@
bool sm_write_array(pid_t target, void *addr, const void *data, int len)
{
int i,j;
+@@ -735,7 +737,7 @@ bool sm_write_array(pid_t target, void *addr, const vo
+ for(j = 0; j <= sizeof(long) - (len - i); ++j)
+ {
+ errno = 0;
+- if(((peek_value = ptrace(PTRACE_PEEKDATA, target, addr - j, NULL)) == -1L) && (errno != 0))
++ if(((peek_value = ptrace(PTRACE_PEEKDATA, target, addr - j, 0)) == -1L) && (errno != 0))
+ {
+ if (errno == EIO || errno == EFAULT) /* may try next shift */
+ continue;