The following Service SAF sends a file bracketed by the strings “begin” and “end.”
#include <string.h> #include "nsapi.h" NSAPI_PUBLIC int service_net_sendfile(pblock *pb, Session *sn, Request *rq) { char *path; SYS_FILE fd; struct sendfiledata sfd; int rv; path = pblock_findval("path", rq->vars); fd = system_fopenRO(path); if (!fd) { log_error(LOG_MISCONFIG, "service-net-sendfile", sn, rq, "Error opening %s (%s)", path, system_errmsg()); return REQ_ABORTED; } sfd.fd = fd; /* file to send */ sfd.offset = 0; /* start sending from the beginning */ sfd.len = 0; /* send the whole file */ sfd.header = "begin"; /* header data to send before the file */ sfd.hlen = strlen(sfd.header); /* length of header data */ sfd.trailer = "end"; /* trailer data to send after the file */ sfd.tlen = strlen(sfd.trailer);/* length of trailer data */ /* send the headers, file, and trailers to the client */ rv = net_sendfile(sn->csd, &sfd); system_fclose(fd); if (rv < 0) { log_error(LOG_INFORM, "service-net-sendfile", sn, rq,"Error sending %s (%s)", path, system_errmsg()); return REQ_ABORTED; } return REQ_PROCEED; }