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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@311 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2001-05-04 00:18:05 +00:00
parent 842317f825
commit 3dd98b5a1e
1 changed files with 44 additions and 27 deletions
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71
frame.c
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@@ -17,6 +17,7 @@
#include <stdlib.h> #include <stdlib.h>
#include <unistd.h> #include <unistd.h>
#include <string.h> #include <string.h>
#include <errno.h>
/* /*
* Important: I should be made more efficient. Frame headers should * Important: I should be made more efficient. Frame headers should
@@ -108,38 +109,45 @@ struct ast_frame *ast_fr_fdread(int fd)
{ {
char buf[4096]; char buf[4096];
int res; int res;
int ttl = sizeof(struct ast_frame);
struct ast_frame *f = (struct ast_frame *)buf; struct ast_frame *f = (struct ast_frame *)buf;
/* Read a frame directly from there. They're always in the /* Read a frame directly from there. They're always in the
right format. */ right format. */
if (read(fd, buf, sizeof(struct ast_frame)) while(ttl) {
== sizeof(struct ast_frame)) { res = read(fd, buf, ttl);
/* read the frame header */ if (res < 0) {
f->mallocd = 0; ast_log(LOG_WARNING, "Bad read on %d: %s\n", fd, strerror(errno));
/* Re-write data position */
f->data = buf + sizeof(struct ast_frame);
f->offset = 0;
/* Forget about being mallocd */
f->mallocd = 0;
/* Re-write the source */
f->src = __FUNCTION__;
if (f->datalen > sizeof(buf) - sizeof(struct ast_frame)) {
/* Really bad read */
ast_log(LOG_WARNING, "Strange read (%d bytes)\n", f->datalen);
return NULL; return NULL;
} }
if (f->datalen) { ttl -= res;
if ((res = read(fd, f->data, f->datalen)) != f->datalen) { }
/* Bad read */
ast_log(LOG_WARNING, "How very strange, expected %d, got %d\n", f->datalen, res); /* read the frame header */
return NULL; f->mallocd = 0;
} /* Re-write data position */
f->data = buf + sizeof(struct ast_frame);
f->offset = 0;
/* Forget about being mallocd */
f->mallocd = 0;
/* Re-write the source */
f->src = __FUNCTION__;
if (f->datalen > sizeof(buf) - sizeof(struct ast_frame)) {
/* Really bad read */
ast_log(LOG_WARNING, "Strange read (%d bytes)\n", f->datalen);
return NULL;
}
if (f->datalen) {
if ((res = read(fd, f->data, f->datalen)) != f->datalen) {
/* Bad read */
ast_log(LOG_WARNING, "How very strange, expected %d, got %d\n", f->datalen, res);
return NULL;
} }
return ast_frisolate(f); }
} else if (option_debug) if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_HANGUP)) {
ast_log(LOG_DEBUG, "NULL or invalid header\n"); return NULL;
/* Null if there was an error */ }
return NULL; return ast_frisolate(f);
} }
/* Some convenient routines for sending frames to/from stream or datagram /* Some convenient routines for sending frames to/from stream or datagram
@@ -149,16 +157,25 @@ int ast_fr_fdwrite(int fd, struct ast_frame *frame)
{ {
/* Write the frame exactly */ /* Write the frame exactly */
if (write(fd, frame, sizeof(struct ast_frame)) != sizeof(struct ast_frame)) { if (write(fd, frame, sizeof(struct ast_frame)) != sizeof(struct ast_frame)) {
ast_log(LOG_WARNING, "Write error\n"); ast_log(LOG_WARNING, "Write error: %s\n", strerror(errno));
return -1; return -1;
} }
if (write(fd, frame->data, frame->datalen) != frame->datalen) { if (write(fd, frame->data, frame->datalen) != frame->datalen) {
ast_log(LOG_WARNING, "Write error\n"); ast_log(LOG_WARNING, "Write error: %s\n", strerror(errno));
return -1; return -1;
} }
return 0; return 0;
} }
int ast_fr_fdhangup(int fd)
{
struct ast_frame hangup = {
AST_FRAME_CONTROL,
AST_CONTROL_HANGUP
};
return ast_fr_fdwrite(fd, &hangup);
}
int ast_getformatbyname(char *name) int ast_getformatbyname(char *name)
{ {
if (!strcasecmp(name, "g723.1")) if (!strcasecmp(name, "g723.1"))