1 files changed, 403 insertions, 0 deletions

diff --git a/runit/runit_lib.h b/runit/runit_lib.h
new file mode 100644
index 0000000..d306164
--- /dev/null
+++ b/runit/runit_lib.h
@@ -0,0 +1,403 @@
+/*
+Copyright (c) 2001-2006, Gerrit Pape
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+   1. Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+   2. Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+   3. The name of the author may not be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*** buffer.h ***/
+
+typedef struct buffer {
+	char *x;
+	unsigned p;
+	unsigned n;
+	int fd;
+	int (*op)(int fd,char *buf,unsigned len);
+} buffer;
+
+#define BUFFER_INIT(op,fd,buf,len) { (buf), 0, (len), (fd), (op) }
+#define BUFFER_INSIZE 8192
+#define BUFFER_OUTSIZE 8192
+
+extern void buffer_init(buffer *,int (*)(int fd,char *buf,unsigned len),int,char *,unsigned);
+
+extern int buffer_flush(buffer *);
+extern int buffer_put(buffer *,const char *,unsigned);
+extern int buffer_putalign(buffer *,const char *,unsigned);
+extern int buffer_putflush(buffer *,const char *,unsigned);
+extern int buffer_puts(buffer *,const char *);
+extern int buffer_putsalign(buffer *,const char *);
+extern int buffer_putsflush(buffer *,const char *);
+
+#define buffer_PUTC(s,c) \
+	( ((s)->n != (s)->p) \
+		? ( (s)->x[(s)->p++] = (c), 0 ) \
+		: buffer_put((s),&(c),1) \
+	)
+
+extern int buffer_get(buffer *,char *,unsigned);
+extern int buffer_bget(buffer *,char *,unsigned);
+extern int buffer_feed(buffer *);
+
+extern char *buffer_peek(buffer *);
+extern void buffer_seek(buffer *,unsigned);
+
+#define buffer_PEEK(s) ( (s)->x + (s)->n )
+#define buffer_SEEK(s,len) ( ( (s)->p -= (len) ) , ( (s)->n += (len) ) )
+
+#define buffer_GETC(s,c) \
+	( ((s)->p > 0) \
+		? ( *(c) = (s)->x[(s)->n], buffer_SEEK((s),1), 1 ) \
+		: buffer_get((s),(c),1) \
+	)
+
+extern int buffer_copy(buffer *,buffer *);
+
+extern int buffer_unixread(int,char *,unsigned);
+/* Actually, int buffer_unixwrite(int,const char *,unsigned),
+	 but that 'const' will produce warnings... oh well */
+extern int buffer_unixwrite(int,char *,unsigned);
+
+
+/*** byte.h ***/
+
+extern unsigned byte_chr(char *s,unsigned n,int c);
+
+
+/*** coe.h ***/
+
+extern int coe(int);
+
+
+/*** direntry.h ***/
+
+#define direntry struct dirent
+
+
+/*** fd.h ***/
+
+extern int fd_copy(int,int);
+extern int fd_move(int,int);
+
+
+/*** fifo.h ***/
+
+extern int fifo_make(const char *,int);
+
+
+/*** fmt.h ***/
+
+#define FMT_ULONG 40 /* enough space to hold 2^128 - 1 in decimal, plus \0 */
+#define FMT_LEN ((char *) 0) /* convenient abbreviation */
+
+extern unsigned fmt_uint(char *,unsigned);
+extern unsigned fmt_uint0(char *,unsigned,unsigned);
+extern unsigned fmt_xint(char *,unsigned);
+extern unsigned fmt_nbbint(char *,unsigned,unsigned,unsigned,unsigned);
+extern unsigned fmt_ushort(char *,unsigned short);
+extern unsigned fmt_xshort(char *,unsigned short);
+extern unsigned fmt_nbbshort(char *,unsigned,unsigned,unsigned,unsigned short);
+extern unsigned fmt_ulong(char *,unsigned long);
+extern unsigned fmt_xlong(char *,unsigned long);
+extern unsigned fmt_nbblong(char *,unsigned,unsigned,unsigned,unsigned long);
+
+extern unsigned fmt_plusminus(char *,int);
+extern unsigned fmt_minus(char *,int);
+extern unsigned fmt_0x(char *,int);
+
+extern unsigned fmt_str(char *,const char *);
+extern unsigned fmt_strn(char *,const char *,unsigned);
+
+
+/*** tai.h ***/
+
+struct tai {
+	uint64_t x;
+} ;
+
+#define tai_unix(t,u) ((void) ((t)->x = 4611686018427387914ULL + (uint64_t) (u)))
+
+extern void tai_now(struct tai *);
+
+#define tai_approx(t) ((double) ((t)->x))
+
+extern void tai_add(struct tai *,const struct tai *,const struct tai *);
+extern void tai_sub(struct tai *,const struct tai *,const struct tai *);
+#define tai_less(t,u) ((t)->x < (u)->x)
+
+#define TAI_PACK 8
+extern void tai_pack(char *,const struct tai *);
+extern void tai_unpack(const char *,struct tai *);
+
+extern void tai_uint(struct tai *,unsigned);
+
+
+/*** taia.h ***/
+
+struct taia {
+	struct tai sec;
+	unsigned long nano; /* 0...999999999 */
+	unsigned long atto; /* 0...999999999 */
+} ;
+
+extern void taia_tai(const struct taia *,struct tai *);
+
+extern void taia_now(struct taia *);
+
+extern double taia_approx(const struct taia *);
+extern double taia_frac(const struct taia *);
+
+extern void taia_add(struct taia *,const struct taia *,const struct taia *);
+extern void taia_addsec(struct taia *,const struct taia *,int);
+extern void taia_sub(struct taia *,const struct taia *,const struct taia *);
+extern void taia_half(struct taia *,const struct taia *);
+extern int taia_less(const struct taia *,const struct taia *);
+
+#define TAIA_PACK 16
+extern void taia_pack(char *,const struct taia *);
+extern void taia_unpack(const char *,struct taia *);
+
+#define TAIA_FMTFRAC 19
+extern unsigned taia_fmtfrac(char *,const struct taia *);
+
+extern void taia_uint(struct taia *,unsigned);
+
+
+/*** fmt_ptime.h ***/
+
+#define FMT_PTIME 30
+
+extern unsigned fmt_ptime(char *, struct taia *);
+extern unsigned fmt_taia(char *, struct taia *);
+
+
+/*** gen_alloc.h ***/
+
+#define GEN_ALLOC_typedef(ta,type,field,len,a) \
+	typedef struct ta { type *field; unsigned len; unsigned a; } ta;
+
+
+/*** gen_allocdefs.h ***/
+
+#define GEN_ALLOC_ready(ta,type,field,len,a,i,n,x,base,ta_ready) \
+int ta_ready(ta *x,unsigned n) \
+{ unsigned i; \
+	if (x->field) { \
+		i = x->a; \
+		if (n > i) { \
+			x->a = base + n + (n >> 3); \
+			x->field = realloc(x->field,x->a * sizeof(type)); \
+			if (x->field) return 1; \
+			x->a = i; return 0; } \
+		return 1; } \
+	x->len = 0; \
+	return !!(x->field = malloc((x->a = n) * sizeof(type))); }
+
+#define GEN_ALLOC_readyplus(ta,type,field,len,a,i,n,x,base,ta_rplus) \
+int ta_rplus(ta *x,unsigned n) \
+{ unsigned i; \
+	if (x->field) { \
+		i = x->a; n += x->len; \
+		if (n > i) { \
+			x->a = base + n + (n >> 3); \
+			x->field = realloc(x->field,x->a * sizeof(type)); \
+			if (x->field) return 1; \
+			x->a = i; return 0; } \
+		return 1; } \
+	x->len = 0; \
+	return !!(x->field = malloc((x->a = n) * sizeof(type))); }
+
+#define GEN_ALLOC_append(ta,type,field,len,a,i,n,x,base,ta_rplus,ta_append) \
+int ta_append(ta *x,const type *i) \
+{ if (!ta_rplus(x,1)) return 0; x->field[x->len++] = *i; return 1; }
+
+
+/*** stralloc.h ***/
+
+GEN_ALLOC_typedef(stralloc,char,s,len,a)
+
+extern int stralloc_ready(stralloc *,unsigned);
+extern int stralloc_readyplus(stralloc *,unsigned);
+extern int stralloc_copy(stralloc *,const stralloc *);
+extern int stralloc_cat(stralloc *,const stralloc *);
+extern int stralloc_copys(stralloc *,const char *);
+extern int stralloc_cats(stralloc *,const char *);
+extern int stralloc_copyb(stralloc *,const char *,unsigned);
+extern int stralloc_catb(stralloc *,const char *,unsigned);
+extern int stralloc_append(stralloc *,const char *); /* beware: this takes a pointer to 1 char */
+extern int stralloc_starts(stralloc *,const char *);
+
+#define stralloc_0(sa) stralloc_append(sa,"")
+
+extern int stralloc_catulong0(stralloc *,unsigned long,unsigned);
+extern int stralloc_catlong0(stralloc *,long,unsigned);
+
+#define stralloc_catlong(sa,l) (stralloc_catlong0((sa),(l),0))
+#define stralloc_catuint0(sa,i,n) (stralloc_catulong0((sa),(i),(n)))
+#define stralloc_catint0(sa,i,n) (stralloc_catlong0((sa),(i),(n)))
+#define stralloc_catint(sa,i) (stralloc_catlong0((sa),(i),0))
+
+
+/*** iopause.h ***/
+
+typedef struct pollfd iopause_fd;
+#define IOPAUSE_READ POLLIN
+#define IOPAUSE_WRITE POLLOUT
+
+extern void iopause(iopause_fd *,unsigned,struct taia *,struct taia *);
+
+
+/*** lock.h ***/
+
+extern int lock_ex(int);
+extern int lock_un(int);
+extern int lock_exnb(int);
+
+
+/*** ndelay.h ***/
+
+extern int ndelay_on(int);
+extern int ndelay_off(int);
+
+
+/*** open.h ***/
+
+extern int open_read(const char *);
+extern int open_excl(const char *);
+extern int open_append(const char *);
+extern int open_trunc(const char *);
+extern int open_write(const char *);
+
+
+/*** openreadclose.h ***/
+
+extern int openreadclose(const char *,stralloc *,unsigned);
+
+
+/*** pathexec.h ***/
+
+extern void pathexec_run(const char *,char *const *,char *const *);
+extern int pathexec_env(const char *,const char *);
+extern void pathexec(char **);
+
+
+/*** pmatch.h ***/
+
+extern unsigned pmatch(const char *, const char *, unsigned);
+
+
+/*** prot.h ***/
+
+extern int prot_gid(int);
+extern int prot_uid(int);
+
+
+/*** readclose.h ***/
+
+extern int readclose_append(int,stralloc *,unsigned);
+extern int readclose(int,stralloc *,unsigned);
+
+
+/*** scan.h ***/
+
+extern unsigned scan_uint(const char *,unsigned *);
+extern unsigned scan_xint(const char *,unsigned *);
+extern unsigned scan_nbbint(const char *,unsigned,unsigned,unsigned,unsigned *);
+extern unsigned scan_ushort(const char *,unsigned short *);
+extern unsigned scan_xshort(const char *,unsigned short *);
+extern unsigned scan_nbbshort(const char *,unsigned,unsigned,unsigned,unsigned short *);
+extern unsigned scan_ulong(const char *,unsigned long *);
+extern unsigned scan_xlong(const char *,unsigned long *);
+extern unsigned scan_nbblong(const char *,unsigned,unsigned,unsigned,unsigned long *);
+
+extern unsigned scan_plusminus(const char *,int *);
+extern unsigned scan_0x(const char *,unsigned *);
+
+extern unsigned scan_whitenskip(const char *,unsigned);
+extern unsigned scan_nonwhitenskip(const char *,unsigned);
+extern unsigned scan_charsetnskip(const char *,const char *,unsigned);
+extern unsigned scan_noncharsetnskip(const char *,const char *,unsigned);
+
+extern unsigned scan_strncmp(const char *,const char *,unsigned);
+extern unsigned scan_memcmp(const char *,const char *,unsigned);
+
+extern unsigned scan_long(const char *,long *);
+extern unsigned scan_8long(const char *,unsigned long *);
+
+
+/*** seek.h ***/
+
+typedef unsigned long seek_pos;
+
+extern seek_pos seek_cur(int);
+
+extern int seek_set(int,seek_pos);
+extern int seek_end(int);
+
+extern int seek_trunc(int,seek_pos);
+
+#define seek_begin(fd) (seek_set((fd),(seek_pos) 0))
+
+
+/*** sig.h ***/
+
+extern int sig_alarm;
+extern int sig_child;
+extern int sig_cont;
+extern int sig_hangup;
+extern int sig_int;
+extern int sig_pipe;
+extern int sig_term;
+
+extern void (*sig_defaulthandler)(int);
+extern void (*sig_ignorehandler)(int);
+
+extern void sig_catch(int,void (*)(int));
+#define sig_ignore(s) (sig_catch((s),sig_ignorehandler))
+#define sig_uncatch(s) (sig_catch((s),sig_defaulthandler))
+
+extern void sig_block(int);
+extern void sig_unblock(int);
+extern void sig_blocknone(void);
+extern void sig_pause(void);
+
+extern void sig_dfl(int);
+
+
+/*** str.h ***/
+
+extern unsigned str_chr(const char *,int);  /* never returns NULL */
+
+#define str_diff(s,t) strcmp((s),(t))
+#define str_equal(s,t) (!strcmp((s),(t)))
+
+
+/*** wait.h ***/
+
+extern int wait_pid(int *wstat, int pid);
+extern int wait_nohang(int *wstat);
+
+#define wait_crashed(w) ((w) & 127)
+#define wait_exitcode(w) ((w) >> 8)
+#define wait_stopsig(w) ((w) >> 8)
+#define wait_stopped(w) (((w) & 127) == 127)