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New version from L. Peter Deutsch.

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This commit is contained in:
Jim Meyering
1999-01-25 05:50:56 +00:00
parent cb6a8b722b
commit becdfba8b9
1 changed files with 27 additions and 14 deletions
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41
src/ansi2knr.c
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@@ -1,6 +1,6 @@
/* Copyright (C) 1989, 1997, 1998 Aladdin Enterprises. All rights reserved. */
/* Copyright (C) 1989, 1997, 1998, 1999 Aladdin Enterprises. All rights reserved. */
/*$Id: ansi2knr.c,v 1.10 1999/01/25 00:34:26 meyering Exp $*/
/*$Id: ansi2knr.c,v 1.11 1999/01/25 05:50:56 meyering Exp $*/
/* Convert ANSI C function definitions to K&R ("traditional C") syntax */
/*
@@ -51,13 +51,15 @@ program under the GPL.
* The following constructs will confuse it:
* - Any other construct that starts at the left margin and
* follows the above syntax (such as a macro or function call).
* - Some macros that tinker with the syntax of the function header.
* - Some macros that tinker with the syntax of function headers.
*/
/*
* The original and principal author of ansi2knr is L. Peter Deutsch
* <ghost@aladdin.com>. Other authors are noted in the change history
* that follows (in reverse chronological order):
lpd 1999-01-24 added a check for write errors on the output,
suggested by Jim Meyering <meyering@ascend.com>
lpd 1998-11-09 added further hack to recognize identifier(void)
as being a procedure
lpd 1998-10-23 added hack to recognize lines consisting of
@@ -191,6 +193,7 @@ main(argc, argv)
FILE *out = stdout;
char *filename = 0;
char *program_name = argv[0];
char *output_name = 0;
#define bufsize 5000 /* arbitrary size */
char *buf;
char *line;
@@ -206,6 +209,7 @@ main(argc, argv)
* check for this switch for backward compatibility.
*/
int convert_varargs = 1;
int output_error;
while ( argc > 1 && argv[1][0] == '-' ) {
if ( !strcmp(argv[1], "--varargs") ) {
@@ -220,7 +224,8 @@ main(argc, argv)
argv += 2;
continue;
}
fprintf(stderr, "Unrecognized switch: %s\n", argv[1]);
fprintf(stderr, "%s: Unrecognized switch: %s\n", program_name,
argv[1]);
fprintf(stderr, usage);
exit(1);
}
@@ -230,16 +235,19 @@ main(argc, argv)
fprintf(stderr, usage);
exit(0);
case 3:
out = fopen(argv[2], "w");
output_name = argv[2];
out = fopen(output_name, "w");
if ( out == NULL ) {
fprintf(stderr, "Cannot open output file %s\n", argv[2]);
fprintf(stderr, "%s: Cannot open output file %s\n",
program_name, output_name);
exit(1);
}
/* falls through */
case 2:
in = fopen(argv[1], "r");
if ( in == NULL ) {
fprintf(stderr, "Cannot open input file %s\n", argv[1]);
fprintf(stderr, "%s: Cannot open input file %s\n",
program_name, argv[1]);
exit(1);
}
if ( filename == 0 )
@@ -301,13 +309,18 @@ wl: fputs(buf, out);
if ( line != buf )
fputs(buf, out);
free(buf);
if (ferror (out) || fclose (out) != 0)
{
fprintf (stderr, "%s: write error\n", program_name);
exit (1);
}
if ( output_name ) {
output_error = ferror(out);
output_error |= fclose(out);
} else { /* out == stdout */
fflush(out);
output_error = ferror(out);
}
if ( output_error ) {
fprintf(stderr, "%s: error writing to %s\n", program_name,
(output_name ? output_name : "stdout"));
exit(1);
}
if ( in != stdin )
fclose(in);
return 0;