add directory study

study/linux-travel/MINIX-1.5/1.5/Source/commands/patch/EXTERN.h

@@ -0,0 +1,15 @@
+/* $Header: EXTERN.h,v 2.0 86/09/17 15:35:37 lwall Exp $
+ *
+ * $Log:	EXTERN.h,v $
+ * Revision 2.0  86/09/17  15:35:37  lwall
+ * Baseline for netwide release.
+ * 
+ */
+
+#undef EXT
+#define EXT extern
+
+#undef INIT
+#define INIT(x)
+
+#undef DOINIT

study/linux-travel/MINIX-1.5/1.5/Source/commands/patch/INTERN.h

@@ -0,0 +1,15 @@
+/* $Header: INTERN.h,v 2.0 86/09/17 15:35:58 lwall Exp $
+ *
+ * $Log:	INTERN.h,v $
+ * Revision 2.0  86/09/17  15:35:58  lwall
+ * Baseline for netwide release.
+ * 
+ */
+
+#undef EXT
+#define EXT
+
+#undef INIT
+#define INIT(x) = x
+
+#define DOINIT

study/linux-travel/MINIX-1.5/1.5/Source/commands/patch/Makefile

@@ -0,0 +1,15 @@
+CFLAGS=-DCHARSPRINTF			# patch for old compiler
+obj = patch.s pch.s inp.s util.s version.s
+
+patch: $(obj)
+	cc -i -o patch $(obj)
+
+patch.s: config.h common.h patch.c inp.h pch.h util.h version.h
+pch.s: config.h common.h pch.c pch.h util.h
+inp.s: config.h common.h inp.c inp.h util.h
+util.s: config.h common.h util.c util.h
+version.s: config.h common.h version.c version.h patchlevel.h util.h
+
+
+clean:	
+	@rm -f *.bak *.s patch

study/linux-travel/MINIX-1.5/1.5/Source/commands/patch/Makefile.68K

@@ -0,0 +1,16 @@
+CFLAGS=-DCHARSPRINTF -O			# patch for old compiler
+obj = patch.o pch.o inp.o util.o version.o
+
+patch: $(obj)
+	cc -s -o patch $(obj)
+	chmem =20000 patch
+
+patch.o: config.h common.h patch.c inp.h pch.h util.h version.h
+pch.o: config.h common.h pch.c pch.h util.h
+inp.o: config.h common.h inp.c inp.h util.h
+util.o: config.h common.h util.c util.h
+version.o: config.h common.h version.c version.h patchlevel.h util.h
+
+
+clean:	
+	@rm -f *.bak *.o patch

study/linux-travel/MINIX-1.5/1.5/Source/commands/patch/common.h

@@ -0,0 +1,158 @@
+/* $Header: common.h,v 2.0.1.2 88/06/22 20:44:53 lwall Locked $
+ *
+ * $Log:	common.h,v $
+ * Revision 2.0.1.2  88/06/22  20:44:53  lwall
+ * patch12: sprintf was declared wrong
+ * 
+ * Revision 2.0.1.1  88/06/03  15:01:56  lwall
+ * patch10: support for shorter extensions.
+ * 
+ * Revision 2.0  86/09/17  15:36:39  lwall
+ * Baseline for netwide release.
+ * 
+ */
+
+#define DEBUGGING
+
+#include "config.h"
+
+/* shut lint up about the following when return value ignored */
+
+#define Signal (void)signal
+#define Unlink (void)unlink
+#define Lseek (void)lseek
+#define Fseek (void)fseek
+#define Fstat (void)fstat
+#define Pclose (void)pclose
+#define Close (void)close
+#define Fclose (void)fclose
+#define Fflush (void)fflush
+#define Sprintf (void)sprintf
+#define Mktemp (void)mktemp
+#define Strcpy (void)strcpy
+#define Strcat (void)strcat
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <assert.h>
+#include <ctype.h>
+#include <signal.h>
+#include <stdio.h>
+
+/* constants */
+
+#define TRUE (1)
+#define FALSE (0)
+
+#define MAXHUNKSIZE 100000		/* is this enough lines? */
+#define INITHUNKMAX 125			/* initial dynamic allocation size */
+#define MAXLINELEN 1024
+#define BUFFERSIZE 1024
+#define SCCSPREFIX "s."
+#define GET "get -e %s"
+#define RCSSUFFIX ",v"
+#define CHECKOUT "co -l %s"
+
+#ifdef FLEXFILENAMES
+#define ORIGEXT ".orig"
+#define REJEXT ".rej"
+#else
+#define ORIGEXT "~"
+#define REJEXT "#"
+#endif
+
+/* handy definitions */
+
+#define Null(t) ((t)0)
+#define Nullch Null(char *)
+#define Nullfp Null(FILE *)
+#define Nulline Null(LINENUM)
+
+#define Ctl(ch) ((ch) & 037)
+
+#define strNE(s1,s2) (strcmp(s1, s2))
+#define strEQ(s1,s2) (!strcmp(s1, s2))
+#define strnNE(s1,s2,l) (strncmp(s1, s2, l))
+#define strnEQ(s1,s2,l) (!strncmp(s1, s2, l))
+
+/* typedefs */
+
+typedef char bool;
+typedef long LINENUM;			/* must be signed */
+typedef unsigned MEM;			/* what to feed malloc */
+
+/* globals */
+
+EXT int Argc;				/* guess */
+EXT char **Argv;
+EXT int Argc_last;			/* for restarting plan_b */
+EXT char **Argv_last;
+
+EXT struct stat filestat;		/* file statistics area */
+EXT int filemode INIT(0644);
+
+EXT char buf[MAXLINELEN];		/* general purpose buffer */
+EXT FILE *ofp INIT(Nullfp);		/* output file pointer */
+EXT FILE *rejfp INIT(Nullfp);		/* reject file pointer */
+
+EXT bool using_plan_a INIT(TRUE);	/* try to keep everything in memory */
+EXT bool out_of_mem INIT(FALSE);	/* ran out of memory in plan a */
+
+#define MAXFILEC 2
+EXT int filec INIT(0);			/* how many file arguments? */
+EXT char *filearg[MAXFILEC];
+EXT bool ok_to_create_file INIT(FALSE);
+EXT char *bestguess INIT(Nullch);	/* guess at correct filename */
+
+EXT char *outname INIT(Nullch);
+EXT char rejname[128];
+
+EXT char *origext INIT(Nullch);
+EXT char *origprae INIT(Nullch);
+
+EXT char TMPOUTNAME[] INIT("/tmp/patchoXXXXXX");
+EXT char TMPINNAME[] INIT("/tmp/patchiXXXXXX");	/* might want /usr/tmp here */
+EXT char TMPREJNAME[] INIT("/tmp/patchrXXXXXX");
+EXT char TMPPATNAME[] INIT("/tmp/patchpXXXXXX");
+EXT bool toutkeep INIT(FALSE);
+EXT bool trejkeep INIT(FALSE);
+
+EXT LINENUM last_offset INIT(0);
+#ifdef DEBUGGING
+EXT int debug INIT(0);
+#endif
+EXT LINENUM maxfuzz INIT(2);
+EXT bool force INIT(FALSE);
+EXT bool verbose INIT(TRUE);
+EXT bool reverse INIT(FALSE);
+EXT bool noreverse INIT(FALSE);
+EXT bool skip_rest_of_patch INIT(FALSE);
+EXT int strippath INIT(957);
+EXT bool canonicalize INIT(FALSE);
+
+#define CONTEXT_DIFF 1
+#define NORMAL_DIFF 2
+#define ED_DIFF 3
+#define NEW_CONTEXT_DIFF 4
+EXT int diff_type INIT(0);
+
+EXT bool do_defines INIT(FALSE);	/* patch using ifdef, ifndef, etc. */
+EXT char if_defined[128];		/* #ifdef xyzzy */
+EXT char not_defined[128];		/* #ifndef xyzzy */
+EXT char else_defined[] INIT("#else\n");/* #else */
+EXT char end_defined[128];		/* #endif xyzzy */
+
+EXT char *revision INIT(Nullch);	/* prerequisite revision, if any */
+
+char *malloc();
+char *realloc();
+char *strcpy();
+char *strcat();
+long atol();
+long lseek();
+char *mktemp();
+#ifdef CHARSPRINTF
+char *sprintf();
+#else
+int sprintf();
+#endif

study/linux-travel/MINIX-1.5/1.5/Source/commands/patch/config.h

@@ -0,0 +1,33 @@
+/* config.h
+ * This file was produced by running the Configure script.
+ * Feel free to modify any of this as the need arises.
+ */
+
+
+#/*undef	EUNICE		/* no file linking? */
+#/*undef	VMS
+
+#/*undef	index strchr	/* cultural */
+#/*undef	rindex strrchr	/*  differences? */
+
+#/*undef	void int	/* is void to be avoided? */
+
+/* How many register declarations are paid attention to? */
+
+#define Reg1 register
+#define Reg2 register
+#define Reg3
+#define Reg4
+#define Reg5
+#define Reg6
+#define Reg7 
+#define Reg8 
+#define Reg9 
+#define Reg10 
+#define Reg11 
+#define Reg12 
+#define Reg13 
+#define Reg14 
+#define Reg15 
+#define Reg16 
+

study/linux-travel/MINIX-1.5/1.5/Source/commands/patch/inp.c

@@ -0,0 +1,319 @@
+/* $Header: inp.c,v 2.0.1.1 88/06/03 15:06:13 lwall Locked $
+ *
+ * $Log:	inp.c,v $
+ * Revision 2.0.1.1  88/06/03  15:06:13  lwall
+ * patch10: made a little smarter about sccs files
+ * 
+ * Revision 2.0  86/09/17  15:37:02  lwall
+ * Baseline for netwide release.
+ * 
+ */
+
+#include "EXTERN.h"
+#include "common.h"
+#include "util.h"
+#include "pch.h"
+#include "INTERN.h"
+#include "inp.h"
+
+/* Input-file-with-indexable-lines abstract type */
+
+static long i_size;			/* size of the input file */
+static char *i_womp;			/* plan a buffer for entire file */
+static char **i_ptr;			/* pointers to lines in i_womp */
+
+static int tifd = -1;			/* plan b virtual string array */
+static char *tibuf[2];			/* plan b buffers */
+static LINENUM tiline[2] = {-1, -1};	/* 1st line in each buffer */
+static LINENUM lines_per_buf;		/* how many lines per buffer */
+static int tireclen;			/* length of records in tmp file */
+
+/* New patch--prepare to edit another file. */
+
+void
+re_input()
+{
+    if (using_plan_a) {
+	i_size = 0;
+#ifndef lint
+	if (i_ptr != Null(char**))
+	    free((char *)i_ptr);
+#endif
+	if (i_womp != Nullch)
+	    free(i_womp);
+	i_womp = Nullch;
+	i_ptr = Null(char **);
+    }
+    else {
+	using_plan_a = TRUE;		/* maybe the next one is smaller */
+	Close(tifd);
+	tifd = -1;
+	free(tibuf[0]);
+	free(tibuf[1]);
+	tibuf[0] = tibuf[1] = Nullch;
+	tiline[0] = tiline[1] = -1;
+	tireclen = 0;
+    }
+}
+
+/* Constuct the line index, somehow or other. */
+
+void
+scan_input(filename)
+char *filename;
+{
+    if (!plan_a(filename))
+	plan_b(filename);
+    if (verbose) {
+	say3("Patching file %s using Plan %s...\n", filename,
+	  (using_plan_a ? "A" : "B") );
+    }
+}
+
+/* Try keeping everything in memory. */
+
+bool
+plan_a(filename)
+char *filename;
+{
+    int ifd;
+    Reg1 char *s;
+    Reg2 LINENUM iline;
+
+    if (ok_to_create_file && stat(filename, &filestat) < 0) {
+	if (verbose)
+	    say2("(Creating file %s...)\n",filename);
+	makedirs(filename, TRUE);
+	close(creat(filename, 0666));
+    }
+    if (stat(filename, &filestat) < 0) {
+	Sprintf(buf, "RCS/%s%s", filename, RCSSUFFIX);
+	if (stat(buf, &filestat) >= 0 || stat(buf+4, &filestat) >= 0) {
+	    Sprintf(buf, CHECKOUT, filename);
+	    if (verbose)
+		say2("Can't find %s--attempting to check it out from RCS.\n",
+		    filename);
+	    if (system(buf) || stat(filename, &filestat))
+		fatal2("Can't check out %s.\n", filename);
+	}
+	else {
+	    Sprintf(buf+20, "SCCS/%s%s", SCCSPREFIX, filename);
+	    if (stat(s=buf+20, &filestat) >= 0 ||
+	      stat(s=buf+25, &filestat) >= 0) {
+		Sprintf(buf, GET, s);
+		if (verbose)
+		    say2("Can't find %s--attempting to get it from SCCS.\n",
+			filename);
+		if (system(buf) || stat(filename, &filestat))
+		    fatal2("Can't get %s.\n", filename);
+	    }
+	    else
+		fatal2("Can't find %s.\n", filename);
+	}
+    }
+    filemode = filestat.st_mode;
+    if ((filemode & S_IFMT) & ~S_IFREG)
+	fatal2("%s is not a normal file--can't patch.\n", filename);
+    i_size = filestat.st_size;
+    if (out_of_mem) {
+	set_hunkmax();		/* make sure dynamic arrays are allocated */
+	out_of_mem = FALSE;
+	return FALSE;			/* force plan b because plan a bombed */
+    }
+#ifdef lint
+    i_womp = Nullch;
+#else
+    i_womp = malloc((MEM)(i_size+2));	/* lint says this may alloc less than */
+					/* i_size, but that's okay, I think. */
+#endif
+    if (i_womp == Nullch)
+	return FALSE;
+    if ((ifd = open(filename, 0)) < 0)
+	fatal2("Can't open file %s\n", filename);
+#ifndef lint
+    if (read(ifd, i_womp, (int)i_size) != i_size) {
+	Close(ifd);	/* probably means i_size > 15 or 16 bits worth */
+	free(i_womp);	/* at this point it doesn't matter if i_womp was */
+	return FALSE;	/*   undersized. */
+    }
+#endif
+    Close(ifd);
+    if (i_size && i_womp[i_size-1] != '\n')
+	i_womp[i_size++] = '\n';
+    i_womp[i_size] = '\0';
+
+    /* count the lines in the buffer so we know how many pointers we need */
+
+    iline = 0;
+    for (s=i_womp; *s; s++) {
+	if (*s == '\n')
+	    iline++;
+    }
+#ifdef lint
+    i_ptr = Null(char**);
+#else
+    i_ptr = (char **)malloc((MEM)((iline + 2) * sizeof(char *)));
+#endif
+    if (i_ptr == Null(char **)) {	/* shucks, it was a near thing */
+	free((char *)i_womp);
+	return FALSE;
+    }
+    
+    /* now scan the buffer and build pointer array */
+
+    iline = 1;
+    i_ptr[iline] = i_womp;
+    for (s=i_womp; *s; s++) {
+	if (*s == '\n')
+	    i_ptr[++iline] = s+1;	/* these are NOT null terminated */
+    }
+    input_lines = iline - 1;
+
+    /* now check for revision, if any */
+
+    if (revision != Nullch) { 
+	if (!rev_in_string(i_womp)) {
+	    if (force) {
+		if (verbose)
+		    say2(
+"Warning: this file doesn't appear to be the %s version--patching anyway.\n",
+			revision);
+	    }
+	    else {
+		ask2(
+"This file doesn't appear to be the %s version--patch anyway? [n] ",
+		    revision);
+	    if (*buf != 'y')
+		fatal1("Aborted.\n");
+	    }
+	}
+	else if (verbose)
+	    say2("Good.  This file appears to be the %s version.\n",
+		revision);
+    }
+    return TRUE;			/* plan a will work */
+}
+
+/* Keep (virtually) nothing in memory. */
+
+void
+plan_b(filename)
+char *filename;
+{
+    Reg3 FILE *ifp;
+    Reg1 int i = 0;
+    Reg2 int maxlen = 1;
+    Reg4 bool found_revision = (revision == Nullch);
+
+    using_plan_a = FALSE;
+    if ((ifp = fopen(filename, "r")) == Nullfp)
+	fatal2("Can't open file %s\n", filename);
+    if ((tifd = creat(TMPINNAME, 0666)) < 0)
+	fatal2("Can't open file %s\n", TMPINNAME);
+    while (fgets(buf, sizeof buf, ifp) != Nullch) {
+	if (revision != Nullch && !found_revision && rev_in_string(buf))
+	    found_revision = TRUE;
+	if ((i = strlen(buf)) > maxlen)
+	    maxlen = i;			/* find longest line */
+    }
+    if (revision != Nullch) {
+	if (!found_revision) {
+	    if (force) {
+		if (verbose)
+		    say2(
+"Warning: this file doesn't appear to be the %s version--patching anyway.\n",
+			revision);
+	    }
+	    else {
+		ask2(
+"This file doesn't appear to be the %s version--patch anyway? [n] ",
+		    revision);
+		if (*buf != 'y')
+		    fatal1("Aborted.\n");
+	    }
+	}
+	else if (verbose)
+	    say2("Good.  This file appears to be the %s version.\n",
+		revision);
+    }
+    Fseek(ifp, 0L, 0);		/* rewind file */
+    lines_per_buf = BUFFERSIZE / maxlen;
+    tireclen = maxlen;
+    tibuf[0] = malloc((MEM)(BUFFERSIZE + 1));
+    tibuf[1] = malloc((MEM)(BUFFERSIZE + 1));
+    if (tibuf[1] == Nullch)
+	fatal1("Can't seem to get enough memory.\n");
+    for (i=1; ; i++) {
+	if (! (i % lines_per_buf))	/* new block */
+	    if (write(tifd, tibuf[0], BUFFERSIZE) < BUFFERSIZE)
+		fatal1("patch: can't write temp file.\n");
+	if (fgets(tibuf[0] + maxlen * (i%lines_per_buf), maxlen + 1, ifp)
+	  == Nullch) {
+	    input_lines = i - 1;
+	    if (i % lines_per_buf)
+		if (write(tifd, tibuf[0], BUFFERSIZE) < BUFFERSIZE)
+		    fatal1("patch: can't write temp file.\n");
+	    break;
+	}
+    }
+    Fclose(ifp);
+    Close(tifd);
+    if ((tifd = open(TMPINNAME, 0)) < 0) {
+	fatal2("Can't reopen file %s\n", TMPINNAME);
+    }
+}
+
+/* Fetch a line from the input file, \n terminated, not necessarily \0. */
+
+char *
+ifetch(line,whichbuf)
+Reg1 LINENUM line;
+int whichbuf;				/* ignored when file in memory */
+{
+    if (line < 1 || line > input_lines)
+	return "";
+    if (using_plan_a)
+	return i_ptr[line];
+    else {
+	LINENUM offline = line % lines_per_buf;
+	LINENUM baseline = line - offline;
+
+	if (tiline[0] == baseline)
+	    whichbuf = 0;
+	else if (tiline[1] == baseline)
+	    whichbuf = 1;
+	else {
+	    tiline[whichbuf] = baseline;
+#ifndef lint		/* complains of long accuracy */
+	    Lseek(tifd, (long)baseline / lines_per_buf * BUFFERSIZE, 0);
+#endif
+	    if (read(tifd, tibuf[whichbuf], BUFFERSIZE) < 0)
+		fatal2("Error reading tmp file %s.\n", TMPINNAME);
+	}
+	return tibuf[whichbuf] + (tireclen*offline);
+    }
+}
+
+/* True if the string argument contains the revision number we want. */
+
+bool
+rev_in_string(string)
+char *string;
+{
+    Reg1 char *s;
+    Reg2 int patlen;
+
+    if (revision == Nullch)
+	return TRUE;
+    patlen = strlen(revision);
+    if (strnEQ(string,revision,patlen) && isspace(s[patlen]))
+	return TRUE;
+    for (s = string; *s; s++) {
+	if (isspace(*s) && strnEQ(s+1, revision, patlen) && 
+		isspace(s[patlen+1] )) {
+	    return TRUE;
+	}
+    }
+    return FALSE;
+}
+

study/linux-travel/MINIX-1.5/1.5/Source/commands/patch/inp.h

@@ -0,0 +1,18 @@
+/* $Header: inp.h,v 2.0 86/09/17 15:37:25 lwall Exp $
+ *
+ * $Log:	inp.h,v $
+ * Revision 2.0  86/09/17  15:37:25  lwall
+ * Baseline for netwide release.
+ * 
+ */
+
+EXT LINENUM input_lines INIT(0);	/* how long is input file in lines */
+EXT LINENUM last_frozen_line INIT(0);	/* how many input lines have been */
+					/* irretractibly output */
+
+bool rev_in_string();
+void scan_input();
+bool plan_a();			/* returns false if insufficient memory */
+void plan_b();
+char *ifetch();
+

study/linux-travel/MINIX-1.5/1.5/Source/commands/patch/patchlevel.h

@@ -0,0 +1 @@
+#define PATCHLEVEL 12

study/linux-travel/MINIX-1.5/1.5/Source/commands/patch/pch.h

@@ -0,0 +1,36 @@
+/* $Header: pch.h,v 2.0.1.1 87/01/30 22:47:16 lwall Exp $
+ *
+ * $Log:	pch.h,v $
+ * Revision 2.0.1.1  87/01/30  22:47:16  lwall
+ * Added do_ed_script().
+ * 
+ * Revision 2.0  86/09/17  15:39:57  lwall
+ * Baseline for netwide release.
+ * 
+ */
+
+EXT FILE *pfp INIT(Nullfp);		/* patch file pointer */
+
+void re_patch();
+void open_patch_file();
+void set_hunkmax();
+void grow_hunkmax();
+bool there_is_another_patch();
+int intuit_diff_type();
+void next_intuit_at();
+void skip_to();
+bool another_hunk();
+bool pch_swap();
+char *pfetch();
+short pch_line_len();
+LINENUM pch_first();
+LINENUM pch_ptrn_lines();
+LINENUM pch_newfirst();
+LINENUM pch_repl_lines();
+LINENUM pch_end();
+LINENUM pch_context();
+LINENUM pch_hunk_beg();
+char pch_char();
+char *pfetch();
+char *pgets();
+void do_ed_script();

study/linux-travel/MINIX-1.5/1.5/Source/commands/patch/util.c

@@ -0,0 +1,364 @@
+#include "EXTERN.h"
+#include "common.h"
+#include "INTERN.h"
+#include "util.h"
+
+/* Rename a file, copying it if necessary. */
+
+int
+move_file(from,to)
+char *from, *to;
+{
+    char bakname[512];
+    Reg1 char *s;
+    Reg2 int i;
+    Reg3 int fromfd;
+
+    /* to stdout? */
+
+    if (strEQ(to, "-")) {
+#ifdef DEBUGGING
+	if (debug & 4)
+	    say2("Moving %s to stdout.\n", from);
+#endif
+	fromfd = open(from, 0);
+	if (fromfd < 0)
+	    fatal2("patch: internal error, can't reopen %s\n", from);
+	while ((i=read(fromfd, buf, sizeof buf)) > 0)
+	    if (write(1, buf, i) != 1)
+		fatal1("patch: write failed\n");
+	Close(fromfd);
+	return 0;
+    }
+
+	if (origprae) {
+		Strcpy (bakname, origprae);
+    	Strcat(bakname, to);
+	} else {
+   		Strcpy(bakname, to);
+    	Strcat(bakname, origext?origext:ORIGEXT);
+	}
+    if (stat(to, &filestat) >= 0) {	/* output file exists */
+	dev_t to_device = filestat.st_dev;
+	ino_t to_inode  = filestat.st_ino;
+	char *simplename = bakname;
+	
+	for (s=bakname; *s; s++) {
+	    if (*s == '/')
+		simplename = s+1;
+	}
+	/* find a backup name that is not the same file */
+	while (stat(bakname, &filestat) >= 0 &&
+		to_device == filestat.st_dev && to_inode == filestat.st_ino) {
+	    for (s=simplename; *s && !islower(*s); s++) ;
+	    if (*s)
+		*s = toupper(*s);
+	    else
+		Strcpy(simplename, simplename+1);
+	}
+	while (unlink(bakname) >= 0) ;	/* while() is for benefit of Eunice */
+#ifdef DEBUGGING
+	if (debug & 4)
+	    say3("Moving %s to %s.\n", to, bakname);
+#endif
+	if (link(to, bakname) < 0) {
+	    say3("patch: can't backup %s, output is in %s\n",
+		to, from);
+	    return -1;
+	}
+	while (unlink(to) >= 0) ;
+    }
+#ifdef DEBUGGING
+    if (debug & 4)
+	say3("Moving %s to %s.\n", from, to);
+#endif
+    if (link(from, to) < 0) {		/* different file system? */
+	Reg4 int tofd;
+	
+	tofd = creat(to, 0666);
+	if (tofd < 0) {
+	    say3("patch: can't create %s, output is in %s.\n",
+	      to, from);
+	    return -1;
+	}
+	fromfd = open(from, 0);
+	if (fromfd < 0)
+	    fatal2("patch: internal error, can't reopen %s\n", from);
+	while ((i=read(fromfd, buf, sizeof buf)) > 0)
+	    if (write(tofd, buf, i) != i)
+		fatal1("patch: write failed\n");
+	Close(fromfd);
+	Close(tofd);
+    }
+    Unlink(from);
+    return 0;
+}
+
+/* Copy a file. */
+
+void
+copy_file(from,to)
+char *from, *to;
+{
+    Reg3 int tofd;
+    Reg2 int fromfd;
+    Reg1 int i;
+    
+    tofd = creat(to, 0666);
+    if (tofd < 0)
+	fatal2("patch: can't create %s.\n", to);
+    fromfd = open(from, 0);
+    if (fromfd < 0)
+	fatal2("patch: internal error, can't reopen %s\n", from);
+    while ((i=read(fromfd, buf, sizeof buf)) > 0)
+	if (write(tofd, buf, i) != i)
+	    fatal2("patch: write (%s) failed\n", to);
+    Close(fromfd);
+    Close(tofd);
+}
+
+/* Allocate a unique area for a string. */
+
+char *
+savestr(s)
+Reg1 char *s;
+{
+    Reg3 char *rv;
+    Reg2 char *t;
+
+    if (!s)
+	s = "Oops";
+    t = s;
+    while (*t++);
+    rv = malloc((MEM) (t - s));
+    if (rv == Nullch) {
+	if (using_plan_a)
+	    out_of_mem = TRUE;
+	else
+	    fatal1("patch: out of memory (savestr)\n");
+    }
+    else {
+	t = rv;
+	while (*t++ = *s++);
+    }
+    return rv;
+}
+
+#if defined(lint) && defined(CANVARARG)
+
+/*VARARGS ARGSUSED*/
+say(pat) char *pat; { ; }
+/*VARARGS ARGSUSED*/
+fatal(pat) char *pat; { ; }
+/*VARARGS ARGSUSED*/
+ask(pat) char *pat; { ; }
+
+#else
+
+/* Vanilla terminal output (buffered). */
+
+void
+say(pat,arg1,arg2,arg3)
+char *pat;
+long arg1,arg2,arg3;
+{
+    fprintf(stderr, pat, arg1, arg2, arg3);
+    Fflush(stderr);
+}
+
+/* Terminal output, pun intended. */
+
+void				/* very void */
+fatal(pat,arg1,arg2,arg3)
+char *pat;
+long arg1,arg2,arg3;
+{
+    void my_exit();
+
+    say(pat, arg1, arg2, arg3);
+    my_exit(1);
+}
+
+/* Get a response from the user, somehow or other. */
+
+void
+ask(pat,arg1,arg2,arg3)
+char *pat;
+long arg1,arg2,arg3;
+{
+    int ttyfd;
+    int r;
+    bool tty2 = isatty(2);
+
+    Sprintf(buf, pat, arg1, arg2, arg3);
+    Fflush(stderr);
+    write(2, buf, strlen(buf));
+    if (tty2) {				/* might be redirected to a file */
+	r = read(2, buf, sizeof buf);
+    }
+    else if (isatty(1)) {		/* this may be new file output */
+	Fflush(stdout);
+	write(1, buf, strlen(buf));
+	r = read(1, buf, sizeof buf);
+    }
+    else if ((ttyfd = open("/dev/tty", 2)) >= 0 && isatty(ttyfd)) {
+					/* might be deleted or unwriteable */
+	write(ttyfd, buf, strlen(buf));
+	r = read(ttyfd, buf, sizeof buf);
+	Close(ttyfd);
+    }
+    else if (isatty(0)) {		/* this is probably patch input */
+	Fflush(stdin);
+	write(0, buf, strlen(buf));
+	r = read(0, buf, sizeof buf);
+    }
+    else {				/* no terminal at all--default it */
+	buf[0] = '\n';
+	r = 1;
+    }
+    if (r <= 0)
+	buf[0] = 0;
+    else
+	buf[r] = '\0';
+    if (!tty2)
+	say1(buf);
+}
+#endif /* lint */
+
+/* How to handle certain events when not in a critical region. */
+
+void
+set_signals(reset)
+int reset;
+{
+    void my_exit();
+#ifndef lint
+#ifdef VOIDSIG
+    static void (*hupval)(),(*intval)();
+#else
+    static int (*hupval)(),(*intval)();
+#endif
+
+    if (!reset) {
+	hupval = signal(SIGHUP, SIG_IGN);
+	if (hupval != SIG_IGN)
+#ifdef VOIDSIG
+	    hupval = my_exit;
+#else
+	    hupval = (int(*)())my_exit;
+#endif
+	intval = signal(SIGINT, SIG_IGN);
+	if (intval != SIG_IGN)
+#ifdef VOIDSIG
+	    intval = my_exit;
+#else
+	    intval = (int(*)())my_exit;
+#endif
+    }
+    Signal(SIGHUP, hupval);
+    Signal(SIGINT, intval);
+#endif
+}
+
+/* How to handle certain events when in a critical region. */
+
+void
+ignore_signals()
+{
+#ifndef lint
+    Signal(SIGHUP, SIG_IGN);
+    Signal(SIGINT, SIG_IGN);
+#endif
+}
+
+/* Make sure we'll have the directories to create a file. */
+
+void
+makedirs(filename,striplast)
+Reg1 char *filename;
+bool striplast;
+{
+    char tmpbuf[256];
+    Reg2 char *s = tmpbuf;
+    char *dirv[20];
+    Reg3 int i;
+    Reg4 int dirvp = 0;
+
+    while (*filename) {
+	if (*filename == '/') {
+	    filename++;
+	    dirv[dirvp++] = s;
+	    *s++ = '\0';
+	}
+	else {
+	    *s++ = *filename++;
+	}
+    }
+    *s = '\0';
+    dirv[dirvp] = s;
+    if (striplast)
+	dirvp--;
+    if (dirvp < 0)
+	return;
+    strcpy(buf, "mkdir");
+    s = buf;
+    for (i=0; i<=dirvp; i++) {
+	while (*s) s++;
+	*s++ = ' ';
+	strcpy(s, tmpbuf);
+	*dirv[i] = '/';
+    }
+    system(buf);
+}
+
+/* Make filenames more reasonable. */
+
+char *
+fetchname(at,strip_leading,assume_exists)
+char *at;
+int strip_leading;
+int assume_exists;
+{
+    char *s;
+    char *name;
+    Reg1 char *t;
+    char tmpbuf[200];
+
+    if (!at)
+	return Nullch;
+    s = savestr(at);
+    for (t=s; isspace(*t); t++) ;
+    name = t;
+#ifdef DEBUGGING
+    if (debug & 128)
+	say4("fetchname %s %d %d\n",name,strip_leading,assume_exists);
+#endif
+    if (strnEQ(name, "/dev/null", 9))	/* so files can be created by diffing */
+	return Nullch;			/*   against /dev/null. */
+    for (; *t && !isspace(*t); t++)
+	if (*t == '/')
+	    if (--strip_leading >= 0)
+		name = t+1;
+    *t = '\0';
+    if (name != s && *s != '/') {
+	name[-1] = '\0';
+	if (stat(s, &filestat) && filestat.st_mode & S_IFDIR) {
+	    name[-1] = '/';
+	    name=s;
+	}
+    }
+    name = savestr(name);
+    Sprintf(tmpbuf, "RCS/%s", name);
+    free(s);
+    if (stat(name, &filestat) < 0 && !assume_exists) {
+	Strcat(tmpbuf, RCSSUFFIX);
+	if (stat(tmpbuf, &filestat) < 0 && stat(tmpbuf+4, &filestat) < 0) {
+	    Sprintf(tmpbuf, "SCCS/%s%s", SCCSPREFIX, name);
+	    if (stat(tmpbuf, &filestat) < 0 && stat(tmpbuf+5, &filestat) < 0) {
+		free(name);
+		name = Nullch;
+	    }
+	}
+    }
+    return name;
+}

study/linux-travel/MINIX-1.5/1.5/Source/commands/patch/util.h

@@ -0,0 +1,74 @@
+/* $Header: util.h,v 2.0 86/09/17 15:40:06 lwall Exp $
+ *
+ * $Log:	util.h,v $
+ * Revision 2.0  86/09/17  15:40:06  lwall
+ * Baseline for netwide release.
+ * 
+ */
+
+/* and for those machine that can't handle a variable argument list */
+
+#ifdef CANVARARG
+
+#define say1 say
+#define say2 say
+#define say3 say
+#define say4 say
+#define ask1 ask
+#define ask2 ask
+#define ask3 ask
+#define ask4 ask
+#define fatal1 fatal
+#define fatal2 fatal
+#define fatal3 fatal
+#define fatal4 fatal
+
+#else /* hope they allow multi-line macro actual arguments */
+
+#ifdef lint
+
+#define say1(a) say(a, 0, 0, 0)
+#define say2(a,b) say(a, (b)==(b), 0, 0)
+#define say3(a,b,c) say(a, (b)==(b), (c)==(c), 0)
+#define say4(a,b,c,d) say(a, (b)==(b), (c)==(c), (d)==(d))
+#define ask1(a) ask(a, 0, 0, 0)
+#define ask2(a,b) ask(a, (b)==(b), 0, 0)
+#define ask3(a,b,c) ask(a, (b)==(b), (c)==(c), 0)
+#define ask4(a,b,c,d) ask(a, (b)==(b), (c)==(c), (d)==(d))
+#define fatal1(a) fatal(a, 0, 0, 0)
+#define fatal2(a,b) fatal(a, (b)==(b), 0, 0)
+#define fatal3(a,b,c) fatal(a, (b)==(b), (c)==(c), 0)
+#define fatal4(a,b,c,d) fatal(a, (b)==(b), (c)==(c), (d)==(d))
+
+#else /* lint */
+    /* if this doesn't work, try defining CANVARARG above */
+#define say1(a) say(a, Nullch, Nullch, Nullch)
+#define say2(a,b) say(a, b, Nullch, Nullch)
+#define say3(a,b,c) say(a, b, c, Nullch)
+#define say4 say
+#define ask1(a) ask(a, Nullch, Nullch, Nullch)
+#define ask2(a,b) ask(a, b, Nullch, Nullch)
+#define ask3(a,b,c) ask(a, b, c, Nullch)
+#define ask4 ask
+#define fatal1(a) fatal(a, Nullch, Nullch, Nullch)
+#define fatal2(a,b) fatal(a, b, Nullch, Nullch)
+#define fatal3(a,b,c) fatal(a, b, c, Nullch)
+#define fatal4 fatal
+
+#endif /* lint */
+
+/* if neither of the above work, join all multi-line macro calls. */
+#endif
+
+EXT char serrbuf[BUFSIZ];		/* buffer for stderr */
+
+char *fetchname();
+int move_file();
+void copy_file();
+void say();
+void fatal();
+void ask();
+char *savestr();
+void set_signals();
+void ignore_signals();
+void makedirs();

study/linux-travel/MINIX-1.5/1.5/Source/commands/patch/version.c

@@ -0,0 +1,28 @@
+/* $Header: version.c,v 2.0 86/09/17 15:40:11 lwall Exp $
+ *
+ * $Log:	version.c,v $
+ * Revision 2.0  86/09/17  15:40:11  lwall
+ * Baseline for netwide release.
+ * 
+ */
+
+#include "EXTERN.h"
+#include "common.h"
+#include "util.h"
+#include "INTERN.h"
+#include "patchlevel.h"
+#include "version.h"
+
+/* Print out the version number and die. */
+
+void
+version()
+{
+    extern char rcsid[];
+
+#ifdef lint
+    rcsid[0] = rcsid[0];
+#else
+    fatal3("%s\nPatch level: %d\n", rcsid, PATCHLEVEL);
+#endif
+}

study/linux-travel/MINIX-1.5/1.5/Source/commands/patch/version.h

@@ -0,0 +1,9 @@
+/* $Header: version.h,v 2.0 86/09/17 15:40:14 lwall Exp $
+ *
+ * $Log:	version.h,v $
+ * Revision 2.0  86/09/17  15:40:14  lwall
+ * Baseline for netwide release.
+ * 
+ */
+
+void version();