+/* $Revision: 1.4 $
+**
+*/
+#include <stdio.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include "configdata.h"
+#include "libinn.h"
+#include "clibrary.h"
+#include "macros.h"
+
+
+/*
+** Read a big amount, looping until it is all done. Return TRUE if
+** successful.
+*/
+int
+xread(fd, p, i)
+ register int fd;
+ register char *p;
+ register off_t i;
+{
+ register int count;
+
+ for ( ; i; p += count, i -= count)
+ if ((count = read(fd, p, (SIZE_T)i)) <= 0)
+ return -1;
+ return 0;
+}
+
+
+/*
+** Read an already-open file into memory.
+*/
+char *
+ReadInDescriptor(fd, Sbp)
+ int fd;
+ struct stat *Sbp;
+{
+ struct stat mystat;
+ char *p;
+ int oerrno;
+
+ if (Sbp == NULL)
+ Sbp = &mystat;
+
+ /* Get the size, and enough memory. */
+ if (fstat(fd, Sbp) < 0) {
+ oerrno = errno;
+ (void)close(fd);
+ errno = oerrno;
+ return NULL;
+ }
+ p = NEW(char, Sbp->st_size + 1);
+
+ /* Slurp, slurp. */
+ if (xread(fd, p, Sbp->st_size) < 0) {
+ oerrno = errno;
+ DISPOSE(p);
+ (void)close(fd);
+ errno = oerrno;
+ return NULL;
+ }
+
+ /* Terminate the string; terminate the routine. */
+ p[Sbp->st_size] = '\0';
+ return p;
+}
+
+
+/*
+** Read a file into allocated memory. Optionally fill in the stat(2) data.
+** Return a pointer to the file contents, or NULL on error.
+*/
+char *
+ReadInFile(name, Sbp)
+ char *name;
+ struct stat *Sbp;
+{
+ char *p;
+ int fd;
+
+ if ((fd = open(name, O_RDONLY)) < 0)
+ return NULL;
+
+ p = ReadInDescriptor(fd, Sbp);
+ (void)close(fd);
+ return p;
+}
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