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add some const correctness, NULL #2

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add some const correctness, NULL #2

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10 changes: 5 additions & 5 deletions nweb23.c
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Original file line number Diff line number Diff line change
Expand Up @@ -21,8 +21,8 @@
#endif

struct {
char *ext;
char *filetype;
const char *ext;
const char *filetype;
} extensions [] = {
{"gif", "image/gif" },
{"jpg", "image/jpg" },
Expand All @@ -36,7 +36,7 @@ struct {
{"html","text/html" },
{0,0} };

void logger(int type, char *s1, char *s2, int socket_fd)
void logger(int type, const char *s1, const char *s2, int socket_fd)
{
int fd ;
char logbuffer[BUFSIZE*2];
Expand Down Expand Up @@ -68,7 +68,7 @@ void web(int fd, int hit)
{
int j, file_fd, buflen;
long i, ret, len;
char * fstr;
const char * fstr;
static char buffer[BUFSIZE+1]; /* static so zero filled */

ret =read(fd,buffer,BUFSIZE); /* read Web request in one go */
Expand Down Expand Up @@ -100,7 +100,7 @@ void web(int fd, int hit)

/* work out the file type and check we support it */
buflen=strlen(buffer);
fstr = (char *)0;
fstr = NULL;
for(i=0;extensions[i].ext != 0;i++) {
len = strlen(extensions[i].ext);
if( !strncmp(&buffer[buflen-len], extensions[i].ext, len)) {
Expand Down