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authorP. J. McDermott <pj@pehjota.net>2021-03-18 10:57:46 (EDT)
committer P. J. McDermott <pj@pehjota.net>2021-03-18 10:57:46 (EDT)
commit41e935ccb6cf5074685a49d8a1c9e0b71e2707ed (patch)
tree4bd146a18e9f66be2b419169432cd672cf83e9b8
parentc6cbd3bccc171918e95c629d591a9d1e7c2d7c97 (diff)
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db_strcat(): New function
-rw-r--r--src/local.mk2
-rw-r--r--src/util.c43
-rw-r--r--src/util.h25
3 files changed, 70 insertions, 0 deletions
diff --git a/src/local.mk b/src/local.mk
index 555eb52..4503ce7 100644
--- a/src/local.mk
+++ b/src/local.mk
@@ -6,5 +6,7 @@ dodge_balls_SOURCES += \
%reldir%/main.c \
%reldir%/output.c \
%reldir%/output.h \
+ %reldir%/util.c \
+ %reldir%/util.h \
%reldir%/xml.c \
%reldir%/xml.h
diff --git a/src/util.c b/src/util.c
new file mode 100644
index 0000000..26fcb1d
--- /dev/null
+++ b/src/util.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2021 P. J. McDermott
+ *
+ * This file is part of Dodge Balls
+ *
+ * Dodge Balls is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Dodge Balls is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Dodge Balls. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+char *
+db_strcat(const char *str1, const char *str2)
+{
+ size_t str1_len;
+ size_t str2_len;
+ char *dest;
+
+ str1_len = strlen(str1);
+ str2_len = strlen(str2);
+
+ dest = malloc((str1_len + str2_len + 1) * sizeof(*dest));
+ if (dest == NULL) {
+ return NULL;
+ }
+
+ memcpy(dest, str1, str1_len);
+ memcpy(dest + str1_len, str2, str2_len);
+ dest[str1_len + str2_len] = '\0';
+
+ return dest;
+}
diff --git a/src/util.h b/src/util.h
new file mode 100644
index 0000000..bdb0fd2
--- /dev/null
+++ b/src/util.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2021 P. J. McDermott
+ *
+ * This file is part of Dodge Balls
+ *
+ * Dodge Balls is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Dodge Balls is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Dodge Balls. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef DB_UTIL_H_
+#define DB_UTIL_H_
+
+char * db_strcat(const char *str1, const char *str2);
+
+#endif /* DB_UTIL_H_ */