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-rw-r--r--sfeed_web.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/sfeed_web.c b/sfeed_web.c
new file mode 100644
index 0000000..c4bcb33
--- /dev/null
+++ b/sfeed_web.c
@@ -0,0 +1,72 @@
+#include <stdio.h>
+#include <string.h>
+#include <strings.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#include "util.h"
+#include "xml.h"
+
+static unsigned int isbase = 0, islink = 0, isfeedlink = 0, found = 0;
+static char feedlink[4096], basehref[4096];
+
+static void
+xmltagstart(XMLParser *p, const char *tag, size_t taglen) {
+ isbase = islink = isfeedlink = 0;
+ if(taglen == 4) { /* optimization */
+ if(!strncasecmp(tag, "base", taglen))
+ isbase = 1;
+ else if(!strncasecmp(tag, "link", taglen))
+ islink = 1;
+ }
+}
+
+static void
+xmltagstartparsed(XMLParser *p, const char *tag, size_t taglen, int isshort) {
+ if(isfeedlink) {
+ printlink(feedlink, basehref, stdout);
+ putchar('\n');
+ found++;
+ }
+}
+
+static void
+xmlattr(XMLParser *p, const char *tag, size_t taglen, const char *name,
+ size_t namelen, const char *value, size_t valuelen) {
+
+ if(namelen != 4) /* optimization */
+ return;
+ if(isbase) {
+ if(!strncasecmp(name, "href", namelen))
+ strlcpy(basehref, value, sizeof(basehref) - 1);
+ } else if(islink) {
+ if(!strncasecmp(name, "type", namelen)) {
+ if(!strncasecmp(value, "application/atom", strlen("application/atom")) ||
+ !strncasecmp(value, "application/rss", strlen("application/rss"))) {
+ isfeedlink = 1;
+ }
+ } else if(!strncasecmp(name, "href", namelen))
+ strlcpy(feedlink, value, sizeof(feedlink) - 1);
+ }
+}
+
+int
+main(int argc, char **argv) {
+ XMLParser x;
+
+ feedlink[0] = '\0';
+ /* base href */
+ if(argc > 1)
+ strlcpy(basehref, argv[1], sizeof(basehref) - 1);
+ else
+ basehref[0] = '\0';
+
+ xmlparser_init(&x);
+ x.xmltagstart = xmltagstart;
+ x.xmlattr = xmlattr;
+ x.xmltagstartparsed = xmltagstartparsed;
+
+ xmlparser_parse(&x);
+
+ return found ? EXIT_SUCCESS : EXIT_FAILURE;
+}