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fsstress: check system call return values

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Check the return values of various system calls and blow up if something
went wrong.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-By: Allison Henderson <allison.henderson@oracle.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
This commit is contained in:
Darrick J. Wong
2018-12-06 22:23:32 -08:00
committed by Eryu Guan
parent b7b480a0ab
commit 39faacd274
1 changed files with 30 additions and 26 deletions
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ltp/fsstress.c
+30 -26
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@@ -733,7 +733,7 @@ append_pathname(pathname_t *name, char *str)
/* attempting to append to a dir a zero length path */
if (len && *str == '/' && name->len == 0) {
fprintf(stderr, "fsstress: append_pathname failure\n");
chdir(homedir);
assert(chdir(homedir) == 0);
abort();
/* NOTREACHED */
}
@@ -765,7 +765,7 @@ attr_list_path(pathname_t *name,
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = attr_list_path(&newname, buffer, buffersize, flags, cursor);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
@@ -784,7 +784,7 @@ attr_remove_path(pathname_t *name, const char *attrname, int flags)
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = attr_remove_path(&newname, attrname, flags);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
@@ -805,7 +805,7 @@ attr_set_path(pathname_t *name, const char *attrname, const char *attrvalue,
if (chdir(buf) == 0) {
rval = attr_set_path(&newname, attrname, attrvalue, valuelength,
flags);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
@@ -819,7 +819,7 @@ check_cwd(void)
if (stat64(".", &statbuf) == 0 && statbuf.st_ino == top_ino)
return;
chdir(homedir);
assert(chdir(homedir) == 0);
fprintf(stderr, "fsstress: check_cwd failure\n");
abort();
/* NOTREACHED */
@@ -858,7 +858,7 @@ creat_path(pathname_t *name, mode_t mode)
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = creat_path(&newname, mode);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
@@ -996,11 +996,15 @@ doproc(void)
}
}
errout:
chdir("..");
assert(chdir("..") == 0);
free(homedir);
if (cleanup) {
int ret;
sprintf(cmd, "rm -rf %s", buf);
system(cmd);
ret = system(cmd);
if (ret != 0)
perror("cleaning up");
cleanup_flist();
}
}
@@ -1216,7 +1220,7 @@ lchown_path(pathname_t *name, uid_t owner, gid_t group)
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = lchown_path(&newname, owner, group);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
@@ -1240,7 +1244,7 @@ link_path(pathname_t *name1, pathname_t *name2)
if (strcmp(buf1, buf2) == 0) {
if (chdir(buf1) == 0) {
rval = link_path(&newname1, &newname2);
chdir("..");
assert(chdir("..") == 0);
}
} else {
if (strcmp(buf1, "..") == 0)
@@ -1260,7 +1264,7 @@ link_path(pathname_t *name1, pathname_t *name2)
append_pathname(&newname2, name2->path);
if (chdir(buf1) == 0) {
rval = link_path(&newname1, &newname2);
chdir("..");
assert(chdir("..") == 0);
}
} else {
free_pathname(&newname1);
@@ -1268,7 +1272,7 @@ link_path(pathname_t *name1, pathname_t *name2)
append_pathname(&newname1, name1->path);
if (chdir(buf2) == 0) {
rval = link_path(&newname1, &newname2);
chdir("..");
assert(chdir("..") == 0);
}
}
}
@@ -1290,7 +1294,7 @@ lstat64_path(pathname_t *name, struct stat64 *sbuf)
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = lstat64_path(&newname, sbuf);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
@@ -1326,7 +1330,7 @@ mkdir_path(pathname_t *name, mode_t mode)
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = mkdir_path(&newname, mode);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
@@ -1345,7 +1349,7 @@ mknod_path(pathname_t *name, mode_t mode, dev_t dev)
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = mknod_path(&newname, mode, dev);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
@@ -1386,7 +1390,7 @@ open_path(pathname_t *name, int oflag)
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = open_path(&newname, oflag);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
@@ -1405,7 +1409,7 @@ opendir_path(pathname_t *name)
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = opendir_path(&newname);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
@@ -1446,7 +1450,7 @@ readlink_path(pathname_t *name, char *lbuf, size_t lbufsiz)
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = readlink_path(&newname, lbuf, lbufsiz);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
@@ -1470,7 +1474,7 @@ rename_path(pathname_t *name1, pathname_t *name2)
if (strcmp(buf1, buf2) == 0) {
if (chdir(buf1) == 0) {
rval = rename_path(&newname1, &newname2);
chdir("..");
assert(chdir("..") == 0);
}
} else {
if (strcmp(buf1, "..") == 0)
@@ -1490,7 +1494,7 @@ rename_path(pathname_t *name1, pathname_t *name2)
append_pathname(&newname2, name2->path);
if (chdir(buf1) == 0) {
rval = rename_path(&newname1, &newname2);
chdir("..");
assert(chdir("..") == 0);
}
} else {
free_pathname(&newname1);
@@ -1498,7 +1502,7 @@ rename_path(pathname_t *name1, pathname_t *name2)
append_pathname(&newname1, name1->path);
if (chdir(buf2) == 0) {
rval = rename_path(&newname1, &newname2);
chdir("..");
assert(chdir("..") == 0);
}
}
}
@@ -1520,7 +1524,7 @@ rmdir_path(pathname_t *name)
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = rmdir_path(&newname);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
@@ -1603,7 +1607,7 @@ stat64_path(pathname_t *name, struct stat64 *sbuf)
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = stat64_path(&newname, sbuf);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
@@ -1627,7 +1631,7 @@ symlink_path(const char *name1, pathname_t *name)
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = symlink_path(name1, &newname);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
@@ -1646,7 +1650,7 @@ truncate64_path(pathname_t *name, off64_t length)
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = truncate64_path(&newname, length);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
@@ -1665,7 +1669,7 @@ unlink_path(pathname_t *name)
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = unlink_path(&newname);
chdir("..");
assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;