X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ffailtest%2Ffailtest.c;h=1dad0864aa372fa3b7ead07a081f9e125f192bbc;hp=ec41e92b46e4cc514bdecb54598686b0a5e9b716;hb=fbae37ba91ec230e34be564084099726cc3a9d47;hpb=57cc9494b0daacd23372cdbdefcd31fe9320c836

diff --git a/ccan/failtest/failtest.c b/ccan/failtest/failtest.c
index ec41e92b..1dad0864 100644
--- a/ccan/failtest/failtest.c
+++ b/ccan/failtest/failtest.c
@@ -13,6 +13,7 @@
 #include <sys/wait.h>
 #include <sys/stat.h>
 #include <sys/time.h>
+#include <sys/mman.h>
 #include <signal.h>
 #include <assert.h>
 #include <ccan/time/time.h>
@@ -96,7 +97,7 @@ static unsigned int lock_num = 0;
 
 static pid_t orig_pid;
 
-static const char info_to_arg[] = "mceoxprwf";
+static const char info_to_arg[] = "mceoxprwfa";
 
 /* Dummy call used for failtest_undo wrappers. */
 static struct failtest_call unrecorded_call;
@@ -523,7 +524,12 @@ static bool should_fail(struct failtest_call *call)
 
 	/* Attach debugger if they asked for it. */
 	if (debugpath) {
-		char *path = failpath_string();
+		char *path;
+
+		/* Pretend this last call matches whatever path wanted:
+		 * keeps valgrind happy. */
+		call->fail = cisupper(debugpath[strlen(debugpath)-1]);
+		path = failpath_string();
 
 		if (streq(path, debugpath)) {
 			char str[80];
@@ -534,9 +540,14 @@ static bool should_fail(struct failtest_call *call)
 				getpid(), getpid());
 			if (system(str) == 0)
 				sleep(5);
-		} else if (!strstarts(path, debugpath)) {
-			fprintf(stderr, "--debugpath not followed: %s\n", path);
-			debugpath = NULL;
+		} else {
+			/* Ignore last character: could be upper or lower. */
+			path[strlen(path)-1] = '\0';
+			if (!strstarts(debugpath, path)) {
+				fprintf(stderr,
+					"--debugpath not followed: %s\n", path);
+				debugpath = NULL;
+			}
 		}
 		free(path);
 	}
@@ -850,6 +861,30 @@ int failtest_open(const char *pathname,
 	return p->u.open.ret;
 }
 
+void *failtest_mmap(void *addr, size_t length, int prot, int flags,
+		    int fd, off_t offset, const char *file, unsigned line)
+{
+	struct failtest_call *p;
+	struct mmap_call call;
+
+	call.addr = addr;
+	call.length = length;
+	call.prot = prot;
+	call.flags = flags;
+	call.offset = offset;
+	call.fd = fd;
+
+	p = add_history(FAILTEST_MMAP, file, line, &call);
+	if (should_fail(p)) {
+		p->u.mmap.ret = MAP_FAILED;
+		p->error = ENOMEM;
+	} else {
+		p->u.mmap.ret = mmap(addr, length, prot, flags, fd, offset);
+	}
+	errno = p->error;
+	return p->u.mmap.ret;
+}
+
 static void cleanup_pipe(struct pipe_call *call)
 {
 	if (!call->closed[0])