10 #include "forwarder.h"
12 const char *const *argv
;
13 char programid
[SYS_NMLN
+sizeof(PROGRAM
)+3];
15 void arg_assert_fail(const char *msg
) {
16 fprintf(stderr
, PROGRAM
": argument error (!`%s')\n",msg
);
20 void sysfail(const char *msg
) {
21 fprintf(stderr
, "%s: fatal system error: %s: %s\n", programid
, msg
, strerror(errno
));
25 void fail(const char *msg
) {
26 fprintf(stderr
, "%s: fatal error: %s\n", programid
, msg
);
30 void sysdiag(const char *msg
) {
31 fprintf(stderr
, "%s: system/network error: %s: %s\n", programid
, msg
, strerror(errno
));
34 void diag(const char *msg
) {
35 fprintf(stderr
, "%s: %s\n", programid
, msg
);
40 if (time(&r
) == (time_t)-1) sysfail("get time of day");
44 void *xmalloc(size_t sz
) {
47 if (!r
) sysfail("allocate memory");
51 void write_must(int fd
, const void *p_in
, int sz
, const char *what
) {
52 const unsigned char *p
= p_in
;
58 if (errno
== EINTR
) continue;
67 void read_must(int fd
, void *p_in
, int sz
, const char *what
) {
68 unsigned char *p
= p_in
;
74 if (errno
== EINTR
) continue;
84 const char *getarg_string(void) {
92 unsigned long getarg_ulong(void) {
96 ul
= strtoul(getarg_string(),&ep
,0);
101 void *buf_append(struct buffer
*buf
, size_t amount
) {
104 p
= buf
->start
+ buf
->size
;
109 void *buf_prepend(struct buffer
*buf
, size_t amount
) {
111 return buf
->start
-= amount
;
114 void *buf_unappend(struct buffer
*buf
, size_t amount
) {
115 if (buf
->size
< amount
) return 0;
116 return buf
->start
+ (buf
->size
-= amount
);
119 void *buf_unprepend(struct buffer
*buf
, size_t amount
) {
123 buf
->start
+= amount
;