rename handerror to xstd; create and use some routines

1 files changed, 45 insertions, 0 deletions

diff --git a/src/xstd.c b/src/xstd.c
new file mode 100644
index 0000000..5669e8f
--- /dev/null
+++ b/src/xstd.c
@@ -0,0 +1,45 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/wait.h>
+
+void callError(int num)
+{
+	fprintf(stderr, "lpass: Sorry, there was an error in the program [#%d]\n", num);
+	exit(3);
+}
+
+void printError(const char *text)
+{
+	fprintf(stderr, "%s", text);
+	exit(4);
+}
+
+void easyFork(char *name, char *arguments[])
+{
+	int pid;
+	pid = fork();
+	if(pid == -1) callError(100);
+	if(pid == 0) { /* new process */
+		execvp(name, arguments);
+		perror(name);
+		exit(4);
+	}
+	wait(&pid);
+}
+
+char *xstrcat(const char *first, const char *second,
+	const char *delimiter)
+{
+	size_t size = sizeof(char) * (strlen(first) + strlen(second) + 1);
+	if(delimiter)
+		size += sizeof(char) * strlen(delimiter);
+	char *res = malloc(size);
+	strcpy(res, first);
+	if(delimiter)
+		strcat(res, delimiter);
+	strcat(res, second);
+	return res;
+}
+