changelog: Document -t option

[chiark-utils.git] / cprogs / cgi-fcgi-interp.c

diff --git a/cprogs/cgi-fcgi-interp.c b/cprogs/cgi-fcgi-interp.c
index 2c157d218033a372c6e53c144cb091e29952ed18..63db94b35fed7a1d3afb3f11c96858a31d3c70d7 100644 (file)
--- a/cprogs/cgi-fcgi-interp.c
+++ b/cprogs/cgi-fcgi-interp.c
@@ -4,7 +4,7 @@
  *   #!/usr/bin/cgi-fcgi-interp [<options>],<interpreter>
  */
 /*
- * cgi-fcgi-interp.[ch] - C helpers common to the whole of chiark-utils
+ * cgi-fcgi-interp.[ch] - Convenience wrapper for cgi-fcgi
  *
  * Copyright 2016 Ian Jackson
  * Copyright 1982,1986,1993 The Regents of the University of California
@@ -441,12 +441,12 @@ static bool stab_isnewer(const struct stat *a, const struct stat *b) {
     fprintf(stderr,"stab_isnewer mtime %lu %lu\n",
            (unsigned long)a->st_mtime,
            (unsigned long)b->st_mtime);
-  return a->st_mtime > &b->st_mtime;
+  return a->st_mtime > b->st_mtime;
 }
 
 static void stab_mtimenow(struct stat *out) {
   out->st_mtime = time(NULL);
-  if (baseline_time.st_mtime == (time_t)-1) diee("(stage2) time()");
+  if (out->st_mtime == (time_t)-1) diee("(stage2) time()");
   if (debugmode)
     fprintf(stderr,"stab_mtimenow mtime %lu\n",
            (unsigned long)out->st_mtime);
@@ -604,7 +604,6 @@ int main(int argc, const char *const *argv) {
 
   script = *argv++;
   if (!script) badusage("need script argument");
-  if (*argv) badusage("too many arguments");
 
   if (!stage2) {
     
@@ -789,12 +788,19 @@ static void errpipe_readable(void) {
   static char buf[1024];
   static int pending;
 
+  /* %: does not contain newlines
+   * _: empty (garbage)
+   */ 
+
+  /*           %%%%%%%%%%%__________________ */
+  /*                      ^ pending          */
+
   for (;;) {
     int avail = sizeof(buf) - pending;
     ssize_t got = read(errpipe, buf+pending, avail);
     if (got==-1) {
       if (errno==EINTR) continue;
-      else if (errno==EWOULDBLOCK || errno==EAGAIN) /*ok*/;
+      else if (errno==EWOULDBLOCK || errno==EAGAIN) return;
       else diee("(stage2) errpipe read");
       got = 0;
     } else if (got==0) {
@@ -819,6 +825,7 @@ static void errpipe_readable(void) {
       }
       syslog(LOG_ERR,"stderr: %.*s", printupto-eaten, buf+eaten);
       eaten += eat;
+      scanned = eaten;
     }
     pending -= eaten;
     memmove(buf, buf+eaten, pending);