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authorAndrew Shadura <andrew.shadura@collabora.co.uk>2018-04-24 17:03:27 +0200
committerAndrew Shadura <andrew.shadura@collabora.co.uk>2018-04-24 17:03:27 +0200
commitdada70f0e58c0dd7d856589d2da2618701a2ff76 (patch)
tree55c4633581d69861796b8c39ef99b0639f56ef68 /src/libmowgli/core/mowgli_string.c
parente5e906c214990dbed7a1c4c614c1d25e67caf800 (diff)
New upstream version 2.1.0
Diffstat (limited to 'src/libmowgli/core/mowgli_string.c')
-rw-r--r--src/libmowgli/core/mowgli_string.c201
1 files changed, 201 insertions, 0 deletions
diff --git a/src/libmowgli/core/mowgli_string.c b/src/libmowgli/core/mowgli_string.c
new file mode 100644
index 0000000..455a12c
--- /dev/null
+++ b/src/libmowgli/core/mowgli_string.c
@@ -0,0 +1,201 @@
+/*
+ * libmowgli: A collection of useful routines for programming.
+ * mowgli_string.c: Immutable string buffers with cheap manipulation.
+ *
+ * Copyright (c) 2007 William Pitcock <nenolod -at- sacredspiral.co.uk>
+ * Copyright (c) 2007 Pippijn van Steenhoven <pippijn -at- one09.net>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice is present in all copies.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "mowgli.h"
+
+mowgli_string_t *
+mowgli_string_create(void)
+{
+ mowgli_string_t *self = mowgli_alloc(sizeof(mowgli_string_t));
+
+ self->size = 64;
+ self->pos = 0;
+ self->str = mowgli_alloc(self->size);
+
+ self->append = &mowgli_string_append;
+ self->append_char = &mowgli_string_append_char;
+ self->reset = &mowgli_string_reset;
+ self->destroy = &mowgli_string_destroy;
+
+ return self;
+}
+
+void
+mowgli_string_reset(mowgli_string_t *self)
+{
+ return_if_fail(self != NULL);
+
+ self->str[0] = self->pos = 0;
+}
+
+void
+mowgli_string_destroy(mowgli_string_t *self)
+{
+ return_if_fail(self != NULL);
+
+ mowgli_free(self->str);
+ mowgli_free(self);
+}
+
+void
+mowgli_string_append(mowgli_string_t *self, const char *src, size_t n)
+{
+ if (self->size - self->pos <= n)
+ {
+ char *new_ptr;
+
+ self->size = MAX(self->size * 2, self->pos + n + 8);
+
+ new_ptr = mowgli_alloc(self->size);
+ mowgli_strlcpy(new_ptr, self->str, self->size);
+
+ mowgli_free(self->str);
+ self->str = new_ptr;
+ }
+
+ memcpy(self->str + self->pos, src, n);
+ self->pos += n;
+ self->str[self->pos] = 0;
+}
+
+void
+mowgli_string_append_char(mowgli_string_t *self, const char c)
+{
+ if (self->size - self->pos <= 1)
+ {
+ char *new_ptr;
+
+ self->size = MAX(self->size * 2, self->pos + 9);
+
+ new_ptr = mowgli_alloc(self->size);
+ mowgli_strlcpy(new_ptr, self->str, self->size);
+
+ mowgli_free(self->str);
+ self->str = new_ptr;
+ }
+
+ self->str[self->pos++] = c;
+ self->str[self->pos] = 0;
+}
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+size_t
+mowgli_strlcat(char *dst, const char *src, size_t siz)
+{
+ char *d = dst;
+ const char *s = src;
+ size_t n = siz;
+ size_t dlen;
+
+ /* Find the end of dst and adjust bytes left but don't go past end */
+ while (n-- != 0 && *d != '\0')
+ {
+ d++;
+ }
+
+ dlen = d - dst;
+ n = siz - dlen;
+
+ if (n == 0)
+ return dlen + strlen(s);
+
+ while (*s != '\0')
+ {
+ if (n != 1)
+ {
+ *d++ = *s;
+ n--;
+ }
+
+ s++;
+ }
+
+ *d = '\0';
+
+ return dlen + (s - src);/* count does not include NUL */
+}
+
+size_t
+mowgli_strlcpy(char *dst, const char *src, size_t siz)
+{
+ char *d = dst;
+ const char *s = src;
+ size_t n = siz;
+
+ /* Copy as many bytes as will fit */
+ if (n != 0)
+ while (--n != 0)
+ {
+ if ((*d++ = *s++) == '\0')
+ break;
+ }
+
+ /* Not enough room in dst, add NUL and traverse rest of src */
+
+ if (n == 0)
+ {
+ if (siz != 0)
+ *d = '\0'; /* NUL-terminate dst */
+
+ while (*s++)
+ { }
+ }
+
+ return s - src - 1; /* count does not include NUL */
+}
+
+ssize_t
+mowgli_writef(mowgli_descriptor_t fd, const char *fmt, ...)
+{
+ size_t len;
+ va_list va;
+ char buf[16384];
+
+ return_val_if_fail(fmt != NULL, -1);
+
+ va_start(va, fmt);
+ len = vsnprintf(buf, sizeof buf, fmt, va);
+ va_end(va);
+
+#ifdef _WIN32
+ return send(fd, buf, len, 0);
+#else
+ return write(fd, buf, len);
+#endif
+}