libcap-ng/libcap-ng-0.6.3-euid.patch

diff -urp libcap-ng-0.6.2/utils/netcap.c libcap-ng-0.6.3/utils/netcap.c
--- libcap-ng-0.6.2/utils/netcap.c	2009-07-26 08:16:16.000000000 -0400
+++ libcap-ng-0.6.3/utils/netcap.c	2009-10-03 08:36:30.000000000 -0400
@@ -31,7 +31,6 @@
 #include <string.h>
 #include <dirent.h>
 #include <fcntl.h>
-#include <sys/stat.h>
 #include <pwd.h>
 #include "cap-ng.h"
 #include "proc-llist.h"
@@ -56,12 +55,12 @@ static int collect_process_info(void)
 		return 1;
 	}
 	while (( ent = readdir(d) )) {
+		FILE *sf;
 		int pid, ppid;
 		capng_results_t caps;
 		char buf[100];
 		char *tmp, cmd[16], state, *text, *bounds;
-		int fd, len;
-		struct stat sb;
+		int fd, len, euid;
 
 		// Skip non-process dir entries
 		if(*ent->d_name<'0' || *ent->d_name>'9')
@@ -77,7 +76,6 @@ static int collect_process_info(void)
 		if (fd < 0)
 			continue;
 		len = read(fd, buf, sizeof buf - 1);
-		fstat(fd, &sb);
 		close(fd);
 		if (len < 40)
 			continue;
@@ -109,6 +107,29 @@ static int collect_process_info(void)
 			text = capng_print_caps_text(CAPNG_PRINT_BUFFER,
 					CAPNG_PERMITTED);
 
+		// Get the effective uid
+		snprintf(buf, 32, "/proc/%d/status", pid);
+		sf = fopen(buf, "rt");
+		if (sf == NULL)
+			euid = 0;
+		else {
+			int line = 0;
+			__fsetlocking(sf, FSETLOCKING_BYCALLER);
+			while (fgets(buf, sizeof(buf), sf)) {
+				if (line == 0) {
+					line++;
+					continue;
+				}
+				if (memcmp(buf, "Uid:", 4) == 0) {
+					int id;
+					sscanf(buf, "Uid: %d %d",
+						&id, &euid);
+					break;
+				}
+			}
+			fclose(sf);
+		}
+
 		// Now record the bounding set information
 		if (caps == CAPNG_PARTIAL) {
 			caps = capng_have_capabilities(CAPNG_SELECT_BOUNDS);
@@ -170,7 +191,7 @@ static int collect_process_info(void)
 				continue;
 			node.ppid = ppid;
 			node.pid = pid;
-			node.uid = sb.st_uid;
+			node.uid = euid;
 			node.cmd = strdup(cmd);
 			node.inode = inode;
 			node.capabilities = strdup(text);
diff -urp libcap-ng-0.6.2/utils/pscap.c libcap-ng-0.6.3/utils/pscap.c
--- libcap-ng-0.6.2/utils/pscap.c	2009-08-16 08:29:37.000000000 -0400
+++ libcap-ng-0.6.3/utils/pscap.c	2009-10-03 08:36:57.000000000 -0400
@@ -23,12 +23,12 @@
 
 #include "config.h"
 #include <stdio.h>
+#include <stdio_ext.h>
 #include <stdlib.h>
 #include <errno.h>
 #include <string.h>
 #include <dirent.h>
 #include <fcntl.h>
-#include <sys/stat.h>
 #include <pwd.h>
 #include "cap-ng.h"
 
@@ -69,11 +69,10 @@ int main(int argc, char *argv[])
 		return 1;
 	}
 	while (( ent = readdir(d) )) {
-		int pid, ppid, uid = -1;
+		int pid, ppid, uid = -1, euid;
 		char buf[100];
 		char *tmp, cmd[16], state, *name = NULL;
 		int fd, len;
-		struct stat sb;
 		struct passwd *p;
 
 		// Skip non-process dir entries
@@ -90,7 +89,6 @@ int main(int argc, char *argv[])
 		if (fd < 0)
 			continue;
 		len = read(fd, buf, sizeof buf - 1);
-		fstat(fd, &sb);
 		close(fd);
 		if (len < 40)
 			continue;
@@ -120,20 +118,47 @@ int main(int argc, char *argv[])
 		// And print out anything with capabilities
 		caps = capng_have_capabilities(CAPNG_SELECT_CAPS);
 		if (caps > CAPNG_NONE) {
+			// Get the effective uid
+			FILE *f;
+			int line;
+			snprintf(buf, 32, "/proc/%d/status", pid);
+			f = fopen(buf, "rt");
+			if (f == NULL)
+				euid = 0;
+			else {
+				line = 0;
+				__fsetlocking(f, FSETLOCKING_BYCALLER);
+				while (fgets(buf, sizeof(buf), f)) {
+					if (line == 0) {
+						line++;
+						continue;
+					}
+					if (memcmp(buf, "Uid:", 4) == 0) {
+						int id;
+						sscanf(buf, "Uid: %d %d",
+							&id, &euid);
+						break;
+					}
+				}
+				fclose(f);
+			}
+			
+			len = read(fd, buf, sizeof buf - 1);
+			close(fd);
 			if (header == 0) {
 				printf("%-5s %-5s %-10s  %-16s  %s\n",
 				    "ppid", "pid", "name", "command",
 				    "capabilities");
 				header = 1;
 			}
-			if (sb.st_uid == 0) {
+			if (euid == 0) {
 				// Take short cut for this one
 				name = "root";
 				uid = 0;
-			} else if (uid != (int)sb.st_uid) {
+			} else if (euid != uid) {
 				// Only look up if name changed
-				p = getpwuid(sb.st_uid);
-				uid = sb.st_uid;
+				p = getpwuid(euid);
+				uid = euid;
 				if (p)
 					name = p->pw_name;
 				// If not taking this branch, use last val