aaa5f039eb
* configure.in (MAKEINFO, PERL): Detect these. (--enable-maintainer-mode): Add. * configure: Regenerate. * Makefile.in (MAKEINFO, PERL): Define. (libiberty.info, libiberty.dvi, libiberty.html): New. (CFILES): Add bsearch.c. (CONFIGURED_OFILES): New, list of objects configure might add. (maint-missing, maint-buildall): New, for maintainers only. (clean, mostlyclean): Add info/dvi/html files. * libiberty.texi, copying-lib.texi, obstacks.texi, functions.texi: New. * gather-docs: New, for maintainers. * maint-tool: New, for maintainers. * alloca.c, atexit.c, basename.c, bcmp.c, bcopy.c, bsearch.c, bzero.c, calloc.c, clock.c, configure.in, configure, getcwd.c, getpagesize.c, getpwd.c, index.c, memchr.c, memcmp.c, memcpy.c, memmove.c, memset.c, putenv.c, rename.c, rindex.c, setenv.c, sigsetmask.c, strcasecmp.c, strchr.c, strdup.c, strerror.c, strncasecmp.c, strncmp.c, strrchr.c, strstr.c, strtod.c, strtol.c, tmpnam.c, vfork.c, vprintf.c, waitpid.c, xatexit.c, xexit.c, xmalloc.c, xmemdup.c, xstrdup.c, xstrerror.c: Add or update documentation. Co-Authored-By: Phil Edwards <pedwards@disaster.jaj.com> From-SVN: r45828
54 lines
1.0 KiB
C
54 lines
1.0 KiB
C
/*
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@deftypefn Supplemental char* tmpnam (char *@var{s})
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This function attempts to create a name for a temporary file, which
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will be a valid file name yet not exist when @code{tmpnam} checks for
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it. @var{s} must point to a buffer of at least @code{L_tmpnam} bytes,
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or be NULL. Use of this function creates a security risk, and it must
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not be used in new projects. Use @code{mkstemp} instead.
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@end deftypefn
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*/
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#include <stdio.h>
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#ifndef L_tmpnam
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#define L_tmpnam 100
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#endif
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#ifndef P_tmpdir
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#define P_tmpdir "/usr/tmp"
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#endif
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static char tmpnam_buffer[L_tmpnam];
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static int tmpnam_counter;
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extern int getpid ();
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char *
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tmpnam (s)
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char *s;
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{
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int pid = getpid ();
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if (s == NULL)
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s = tmpnam_buffer;
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/* Generate the filename and make sure that there isn't one called
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it already. */
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while (1)
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{
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FILE *f;
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sprintf (s, "%s/%s%x.%x", P_tmpdir, "t", pid, tmpnam_counter);
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f = fopen (s, "r");
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if (f == NULL)
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break;
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tmpnam_counter++;
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fclose (f);
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}
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return s;
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}
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