+ for (a = 0; a < (int)strlen(strbuf); ++a) {
+ c = 0;
+ for (b = 0; b < strlen(ec); ++b) {
+ if (strbuf[a] == ec[b])
+ c = 1;
+ }
+ b = strlen(outbuf);
+ if (c == 1)
+ sprintf(&outbuf[b], "%%%02x", strbuf[a]);
+ else
+ sprintf(&outbuf[b], "%c", strbuf[a]);
+ }
+}
+
+
+
+/*
+ * In our world, we want strcpy() to be able to work with overlapping strings.
+ */
+#ifdef strcpy
+#undef strcpy
+#endif
+char *strcpy(char *dest, const char *src) {
+ memmove(dest, src, (strlen(src) + 1) );
+ return(dest);
+}
+
+
+/*
+ * Generate a new, globally unique UID parameter for a calendar etc. object
+ */
+void generate_uuid(char *buf) {
+ static int seq = 0;
+
+ sprintf(buf, "%lx-"F_XPID_T"-%x",
+ time(NULL),
+ getpid(),
+ (seq++)
+ );
+}
+
+/*
+ * bmstrcasestr() -- case-insensitive substring search
+ *
+ * This uses the Boyer-Moore search algorithm and is therefore quite fast.
+ * The code is roughly based on the strstr() replacement from 'tin' written
+ * by Urs Jannsen.
+ */
+char *bmstrcasestr(char *text, char *pattern) {
+
+ register unsigned char *p, *t;
+ register int i, j, *delta;
+ register size_t p1;
+ int deltaspace[256];
+ size_t textlen;
+ size_t patlen;
+
+ textlen = strlen (text);
+ patlen = strlen (pattern);
+
+ /* algorithm fails if pattern is empty */
+ if ((p1 = patlen) == 0)
+ return (text);
+
+ /* code below fails (whenever i is unsigned) if pattern too long */
+ if (p1 > textlen)
+ return (NULL);
+
+ /* set up deltas */
+ delta = deltaspace;
+ for (i = 0; i <= 255; i++)
+ delta[i] = p1;
+ for (p = (unsigned char *) pattern, i = p1; --i > 0;)
+ delta[tolower(*p++)] = i;
+
+ /*
+ * From now on, we want patlen - 1.
+ * In the loop below, p points to the end of the pattern,
+ * t points to the end of the text to be tested against the
+ * pattern, and i counts the amount of text remaining, not
+ * including the part to be tested.
+ */
+ p1--;
+ p = (unsigned char *) pattern + p1;
+ t = (unsigned char *) text + p1;
+ i = textlen - patlen;
+ while(1) {
+ if (tolower(p[0]) == tolower(t[0])) {
+ if (strncasecmp ((const char *)(p - p1), (const char *)(t - p1), p1) == 0) {
+ return ((char *)t - p1);
+ }
+ }
+ j = delta[tolower(t[0])];
+ if (i < j)
+ break;
+ i -= j;
+ t += j;
+ }
+ return (NULL);
+}
+
+
+
+/*
+ * Local replacement for controversial C library function that generates
+ * names for temporary files. Included to shut up compiler warnings.
+ */
+void CtdlMakeTempFileName(char *name, int len) {
+ int i = 0;
+
+ while (i++, i < 100) {
+ snprintf(name, len, "/tmp/ctdl."F_XPID_T".%04x",
+ getpid(),
+ rand()
+ );
+ if (!access(name, F_OK)) {
+ return;
+ }
+ }
+}