add a few man pages

fmt/fmt_long.3

@@ -4,7 +4,7 @@ fmt_long \- write an ASCII representation of a long integer
 .SH SYNTAX
 .B #include <fmt.h>
 
-unsigned int \fBfmt_long\fP(char *\fIdest\fR,unsigned int \fIsource\fR);
+unsigned int \fBfmt_long\fP(char *\fIdest\fR,long \fIsource\fR);
 .SH DESCRIPTION
 fmt_long writes an ASCII representation ('-' and '0' to '9', base 10) of
 \fIsource\fR to \fIdest\fR and returns the number of bytes written.

fmt/fmt_longlong.3

@@ -0,0 +1,20 @@
+.TH fmt_longlong 3
+.SH NAME
+fmt_longlong \- write an ASCII representation of a long long integer
+.SH SYNTAX
+.B #include <fmt.h>
+
+unsigned int \fBfmt_longlong\fP(char *\fIdest\fR,long long \fIsource\fR);
+.SH DESCRIPTION
+fmt_longlong writes an ASCII representation ('-' and '0' to '9', base 10) of
+\fIsource\fR to \fIdest\fR and returns the number of bytes written.
+
+fmt_longlong does not append \\0.
+
+If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_longlong returns the number
+of bytes it would have written.
+
+For convenience, fmt.h defines the integer FMT_LONG to be big enough to
+contain every possible fmt_longlong output plus \\0.
+.SH "SEE ALSO"
+scan_longlong(3)

fmt/fmt_ulonglong.3

@@ -0,0 +1,20 @@
+.TH fmt_ulonglong 3
+.SH NAME
+fmt_ulonglong \- write an ASCII representation of an unsigned long long integer
+.SH SYNTAX
+.B #include <fmt.h>
+
+unsigned int \fBfmt_ulonglong\fP(char *\fIdest\fR,unsigned long long \fIsource\fR);
+.SH DESCRIPTION
+fmt_ulonglong writes an ASCII representation ('0' to '9', base 10) of
+\fIsource\fR to \fIdest\fR and returns the number of bytes written.
+
+fmt_ulonglong does not append \\0.
+
+If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_ulonglong returns the
+number of bytes it would have written.
+
+For convenience, fmt.h defines the integer FMT_ULONG to be big enough to
+contain every possible fmt_ulonglong output plus \\0.
+.SH "SEE ALSO"
+scan_ulonglong(3)

fmt/fmt_xlonglong.3

@@ -0,0 +1,21 @@
+.TH fmt_xlonglong 3
+.SH NAME
+fmt_xlonglong \- write a hexadecimal ASCII representation of an unsigned long long integer
+.SH SYNTAX
+.B #include <fmt.h>
+
+unsigned int \fBfmt_xlonglong\fP(char *\fIdest\fR,unsigned long long \fIsource\fR);
+.SH DESCRIPTION
+fmt_xlonglong writes an ASCII representation ('0' to '9' and 'a' to 'f',
+base 16) of \fIsource\fR to \fIdest\fR and returns the number of bytes
+written.
+
+fmt_xlonglong does not append \\0.
+
+If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_xlonglong returns the
+number of bytes it would have written.
+
+For convenience, fmt.h defines the integer FMT_XLONG to be big enough to
+contain every possible fmt_xlonglong output plus \\0.
+.SH "SEE ALSO"
+scan_xlonglong(3)

open.h

@@ -24,4 +24,8 @@ int open_trunc(const char *filename);
  * Return the file handle or -1 on error. */
 int open_write(const char* filename);
 
+/* open filename for reading and writing.  Create file if not there.
+ * Return file handle or -1 on error. */
+int open_rw(const char* filename);
+
 #endif

open/open_rw.3

@@ -0,0 +1,14 @@
+.TH open_rw 3
+.SH NAME
+open_rw \- open a file for reading and writing
+.SH SYNTAX
+.B #include <open.h>
+
+extern int \fBopen_rw\fP(const char *\fIfilename\fR);
+.SH DESCRIPTION
+open_rw opens the file \fIfilename\fR for reading and writing use and
+returns the file handle.  If the file does not exist, it will be created
+with mode 0644.  If there was an error opening or creating the file,
+open_rw returns -1 and sets errno accordingly.
+.SH "SEE ALSO"
+open(2)

open/open_rw.c

@@ -0,0 +1,11 @@
+#include <unistd.h>
+#include <fcntl.h>
+#include "open.h"
+
+#ifndef O_NDELAY
+#define O_NDELAY 0
+#endif
+
+int open_rw(const char *filename) {
+  return open(filename,O_RDWR|O_CREAT|O_NDELAY,0644);
+}

scan/scan_longlong.3

@@ -1,6 +1,6 @@
 .TH scan_longlong 3
 .SH NAME
-scan_longlong \- parse an long integer in decimal ASCII representation
+scan_longlong \- parse a long integer in decimal ASCII representation
 .SH SYNTAX
 .B #include <scan.h>
 

scan/scan_short.3

@@ -0,0 +1,13 @@
+.TH scan_short 3
+.SH NAME
+scan_short \- parse an integer in decimal ASCII representation
+.SH SYNTAX
+.B #include <scan.h>
+
+int \fBscan_short\fP(const char *\fIsrc\fR,short int *\fIdest\fR);
+.SH DESCRIPTION
+scan_short parses a short integer in decimal ASCII representation
+from \fIsrc\fR and writes the result into \fIdest\fR. It returns the
+number of bytes read from \fIsrc\fR.
+.SH "SEE ALSO"
+scan_int(3), scan_ushort(3), scan_xshort(3), scan_8short(3), fmt_short(3)

scan/scan_ulonglong.3

@@ -0,0 +1,13 @@
+.TH scan_ulonglong 3
+.SH NAME
+scan_ulonglong \- parse an unsigned long integer in decimal ASCII representation
+.SH SYNTAX
+.B #include <scan.h>
+
+int \fBscan_ulonglong\fP(const char *\fIsrc\fR,unsigned long long *\fIdest\fR);
+.SH DESCRIPTION
+scan_ulonglong parses an unsigned long long integer in decimal ASCII representation
+from \fIsrc\fR and writes the result into \fIdest\fR. It returns the
+number of bytes read from \fIsrc\fR.
+.SH "SEE ALSO"
+scan_longlong(3), fmt_ulonglong(3)

scan/scan_xlonglong.3

@@ -0,0 +1,17 @@
+.TH scan_xlonglong 3
+.SH NAME
+scan_xlonglong \- parse an unsigned long long integer in hexadecimal ASCII representation
+.SH SYNTAX
+.B #include <scan.h>
+
+int \fBscan_xlonglong\fP(const char *\fIsrc\fR,unsigned long long* \fIdest\fR);
+.SH DESCRIPTION
+scan_xlonglong parses an unsigned long long integer in hexadecimal ASCII
+representation from \fIsrc\fR and writes the result into \fIdest\fR. It
+returns the number of bytes read from \fIsrc\fR.
+
+scan_xlonglong understands both upper and lower case letters.
+
+scan_xlonglong does not expect or understand a "0x" prefix.
+.SH "SEE ALSO"
+fmt_xlonglong(3)

scan/scan_xlonglong.c

@@ -0,0 +1,13 @@
+#include "scan.h"
+
+unsigned int scan_xlonglong(const char* src,unsigned long long* dest) {
+  register const char *tmp=src;
+  register int l=0;
+  register unsigned char c;
+  while ((c=scan_fromhex(*tmp))<16) {
+    l=(l<<4)+c;
+    ++tmp;
+  }
+  *dest=l;
+  return tmp-src;
+}