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authorMattias Andrée <maandree@kth.se>2018-10-27 12:12:01 +0200
committerMattias Andrée <maandree@kth.se>2018-10-27 12:12:01 +0200
commit1f7da5379b80254d6c54b4ae5b7de4686af5bba5 (patch)
tree860d07aae73f535f5bbaeb10733dac77bef45c23
parentAdd man pages for strn[case]chr[nul] and strrn[case]chr (diff)
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Remove strndup, it is in POSIX
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to '')
-rw-r--r--Makefile1
-rw-r--r--README3
-rw-r--r--libsimple/strndup.h6
-rw-r--r--strndup.c70
-rw-r--r--test.c11
5 files changed, 9 insertions, 82 deletions
diff --git a/Makefile b/Makefile
index 575e689..3469282 100644
--- a/Makefile
+++ b/Makefile
@@ -102,7 +102,6 @@ OBJ =\
strncasestr.o\
strnchr.o\
strnchrnul.o\
- strndup.o\
strnend.o\
strnends.o\
strneqlen.o\
diff --git a/README b/README
index 369307b..9044b87 100644
--- a/README
+++ b/README
@@ -106,9 +106,6 @@ The following functions are defined (some as inline functions):
void *libsimple_memdup(const void *, size_t)
Duplicate a memory segment.
- char *libsimple_strndup(const char *, size_t)
- Duplicate a substring.
-
void *libsimple_mempcpy(void *, const void *, size_t)
Like memcpy, except returns the byte after the
last written byte.
diff --git a/libsimple/strndup.h b/libsimple/strndup.h
index 28ec293..90fbfa1 100644
--- a/libsimple/strndup.h
+++ b/libsimple/strndup.h
@@ -18,12 +18,6 @@
# endif
#endif
-_LIBSIMPLE_GCC_ONLY(__attribute__((__malloc__, __assume_aligned__(1), __nonnull__, __warn_unused_result__)))
-char *libsimple_strndup(const char *, size_t);
-#ifndef strndup
-# define strndup libsimple_strndup
-#endif
-
_LIBSIMPLE_GCC_ONLY(__attribute__((__malloc__, __assume_aligned__(1), __nonnull__, __warn_unused_result__, __returns_nonnull__)))
char *libsimple_enstrndup(int, const char *, size_t);
#ifndef enstrndup
diff --git a/strndup.c b/strndup.c
deleted file mode 100644
index d4c681f..0000000
--- a/strndup.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/* See LICENSE file for copyright and license details. */
-#include "libsimple.h"
-#ifndef TEST
-
-
-char *
-libsimple_strndup(const char *s, size_t n)
-{
- char *ret;
- size_t m = strlen(s);
- n = MIN(n, m);
- if (n == SIZE_MAX) {
- errno = ENOMEM;
- return NULL;
- }
- if (!(ret = aligned_alloc(1, n + 1)))
- return NULL;
- memcpy(ret, s, n);
- ret[n] = '\0';
- return ret;
-}
-
-
-#else
-#include "test.h"
-
-int
-main(void)
-{
- struct allocinfo *info;
- const char *s = "test";
- void *p;
-
- p = libsimple_strndup(s, 5);
- assert(p && p != s);
- assert(!strcmpnul(p, "test"));
- memset(p, 0, 5);
- assert(!strcmpnul(s, "test"));
- if (have_custom_malloc()) {
- assert((info = get_allocinfo(p)));
- assert(info->alignment == 1);
- }
- free(p);
-
- p = libsimple_strndup(s, 3);
- assert(p && p != s);
- assert(!strcmpnul(p, "tes"));
- memset(p, 0, 4);
- assert(!strcmpnul(s, "test"));
- if (have_custom_malloc()) {
- assert((info = get_allocinfo(p)));
- assert(info->alignment == 1);
- }
- free(p);
-
- p = libsimple_strndup(s, 0);
- assert(p && p != s);
- assert(!strcmpnul(p, ""));
- memset(p, 0, 1);
- assert(!strcmpnul(s, "test"));
- if (have_custom_malloc()) {
- assert((info = get_allocinfo(p)));
- assert(info->alignment == 1);
- }
- free(p);
-
- return 0;
-}
-
-#endif
diff --git a/test.c b/test.c
index b954ccd..80b7ad7 100644
--- a/test.c
+++ b/test.c
@@ -216,9 +216,16 @@ strdup(const char *s)
char *
-strndup(const char *s, size_t size)
+strndup(const char *s, size_t n)
{
- return libsimple_strndup(s, size);
+ char *ret;
+ size_t m = strlen(s);
+ n = MIN(n, m);
+ if (!(ret = aligned_alloc(1, n + 1)))
+ return NULL;
+ memcpy(ret, s, n);
+ ret[n] = '\0';
+ return ret;
}