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Add dirname function

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This commit is contained in:
Erik van der Kouwe
2010-01-25 18:12:28 +00:00
parent a89d141e90
commit 3ec29ae85e
3 changed files with 109 additions and 0 deletions
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61
test/test43.c
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@@ -3,6 +3,7 @@
#include <assert.h>
#include <dirent.h>
#include <errno.h>
#include <libgen.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
@@ -328,6 +329,36 @@ static void cleanup(const char *path)
if (rmdir(path) < 0) ERR;
}
static void test_dirname(const char *path, const char *exp)
{
char buffer[PATH_MAX];
int i, j;
size_t pathlen = strlen(path);
char *pathout;
assert(pathlen + 3 < PATH_MAX);
/* try with no, one or two trailing slashes */
for (i = 0; i < 3; i++)
{
/* no trailing slashes for empty string */
if (pathlen < 1 && i > 0)
continue;
/* prepare buffer */
strcpy(buffer, path);
for (j = 0; j < i; j++)
buffer[pathlen + j] = '/';
buffer[pathlen + i] = 0;
/* perform test */
pathout = dirname(buffer);
if (strcmp(pathout, exp) != 0)
ERR;
}
}
int main(int argc, char **argv)
{
char buffer1[PATH_MAX + 1], buffer2[PATH_MAX + 1];
@@ -358,6 +389,36 @@ int main(int argc, char **argv)
/* delete the symlinks */
cleanup(addbasepath(buffer1, PATH_BASE));
/* also test dirname */
test_dirname("", ".");
test_dirname(".", ".");
test_dirname("..", ".");
test_dirname("x", ".");
test_dirname("xy", ".");
test_dirname("x/y", "x");
test_dirname("xy/z", "xy");
test_dirname("x/yz", "x");
test_dirname("ab/cd", "ab");
test_dirname("x//y", "x");
test_dirname("xy//z", "xy");
test_dirname("x//yz", "x");
test_dirname("ab//cd", "ab");
test_dirname("/", "/");
test_dirname("/x", "/");
test_dirname("/xy", "/");
test_dirname("/x/y", "/x");
test_dirname("/xy/z", "/xy");
test_dirname("/x/yz", "/x");
test_dirname("/ab/cd", "/ab");
test_dirname("/x//y", "/x");
test_dirname("/xy//z", "/xy");
test_dirname("/x//yz", "/x");
test_dirname("/ab//cd", "/ab");
test_dirname("/usr/src", "/usr");
test_dirname("/usr/src/test", "/usr/src");
test_dirname("usr/src", "usr");
test_dirname("usr/src/test", "usr/src");
/* done */
quit();
return(-1); /* impossible */