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-rw-r--r--usr.bin/patch/util.c339
1 files changed, 0 insertions, 339 deletions
diff --git a/usr.bin/patch/util.c b/usr.bin/patch/util.c
deleted file mode 100644
index 5582d18..0000000
--- a/usr.bin/patch/util.c
+++ /dev/null
@@ -1,339 +0,0 @@
-#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;
- }
-
- 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;
-int 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;
-int 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;
-int 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()
-{
- void my_exit();
-
-#ifndef lint
- if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
- Signal(SIGHUP, my_exit);
- if (signal(SIGINT, SIG_IGN) != SIG_IGN)
- Signal(SIGINT, my_exit);
-#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;
-}
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