diff options
Diffstat (limited to 'src/buffer.c')
| -rw-r--r-- | src/buffer.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/src/buffer.c b/src/buffer.c index 3d0d0c1..c38dc30 100644 --- a/src/buffer.c +++ b/src/buffer.c @@ -1,4 +1,4 @@ -/* $Id: buffer.c,v 1.3 2000-09-11 23:41:32 rjkaes Exp $ +/* $Id: buffer.c,v 1.4 2001-05-23 18:01:23 rjkaes Exp $ * * The buffer used in each connection is a linked list of lines. As the lines * are read in and written out the buffer expands and contracts. Basically, @@ -48,6 +48,8 @@ struct buffer_s { */ unsigned int buffer_size(struct buffer_s *buffptr) { + assert(buffptr != NULL); + return buffptr->size; } @@ -59,6 +61,8 @@ static struct bufline_s *makenewline(unsigned char *data, unsigned int length) { struct bufline_s *newline; + assert(data != NULL); + if (!(newline = malloc(sizeof(struct bufline_s)))) return NULL; @@ -75,6 +79,8 @@ static struct bufline_s *makenewline(unsigned char *data, unsigned int length) */ static void free_line(struct bufline_s *line) { + assert(line != NULL); + if (!line) return; @@ -108,6 +114,8 @@ void delete_buffer(struct buffer_s *buffptr) { struct bufline_s *next; + assert(buffptr != NULL); + while (BUFFER_HEAD(buffptr)) { next = BUFFER_HEAD(buffptr)->next; free_line(BUFFER_HEAD(buffptr)); @@ -127,6 +135,9 @@ static int add_to_buffer(struct buffer_s *buffptr, unsigned char *data, { struct bufline_s *newline; + assert(buffptr != NULL); + assert(data != NULL); + if (!(newline = makenewline(data, length))) return -1; @@ -148,6 +159,8 @@ static struct bufline_s *remove_from_buffer(struct buffer_s *buffptr) { struct bufline_s *line; + assert(buffptr != NULL); + if (!BUFFER_HEAD(buffptr) && !BUFFER_TAIL(buffptr)) { line = BUFFER_HEAD(buffptr); BUFFER_HEAD(buffptr) = BUFFER_TAIL(buffptr) = NULL; @@ -176,6 +189,9 @@ int readbuff(int fd, struct buffer_s *buffptr) unsigned char inbuf[MAXBUFFSIZE]; unsigned char *buffer; + assert(fd >= 0); + assert(buffptr != NULL); + if (buffer_size(buffptr) >= MAXBUFFSIZE) return 0; @@ -221,7 +237,12 @@ int readbuff(int fd, struct buffer_s *buffptr) int writebuff(int fd, struct buffer_s *buffptr) { int bytessent; - struct bufline_s *line = BUFFER_HEAD(buffptr); + struct bufline_s *line; + + assert(fd >= 0); + assert(buffptr != NULL); + + line = BUFFER_HEAD(buffptr); if (buffer_size(buffptr) <= 0) return 0; |