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Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [rtos/] [rtems/] [tools/] [build/] [eolstrip.c] - Blame information for rev 318

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/*
 *  eolstrip - strip white space from end of lines
 *
 *  This program strips the white space from the end of every line in the
 *  specified program.
 *
 *  usage:  eolstrip  [ -v ] [ arg ... ] files...
 *           -v          -- verbose
 *
 * $Id: eolstrip.c,v 1.2 2001-09-27 12:02:53 chris Exp $
 */
 
#define GETOPTARGS "vt"
 
char *USAGE = "\
usage:  cklength  [ -v ] [ arg ... ] files... \n\
            -v          -- verbose\n\
            -t          -- test only .. DO NOT OVERWRITE FILE!!!\n\
\n\
Strip the white space from the end of every line on the list of files.\n\
";
 
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <ctype.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <memory.h>
#include <stdarg.h>
#include <errno.h>
 
#include "config.h"
 
#ifndef VMS
#ifndef HAVE_STRERROR
extern int sys_nerr;
extern char *sys_errlist[];
 
#define strerror( _err ) \
  ((_err) < sys_nerr) ? sys_errlist [(_err)] : "unknown error"
 
#else   /* HAVE_STRERROR */
char *strerror ();
#endif
#else   /* VMS */
char *strerror (int,...);
#endif
 
 
#define BUFFER_SIZE     2048
#define MAX_PATH        2048
 
#define SUCCESS         0
#define FAILURE         -1
#define Failed(x)       (((int) (x)) == FAILURE)
#define TRUE    1
#define FALSE   0
#define STREQ(a,b)      (strcmp(a,b) == 0)
#define NUMELEMS(arr)   (sizeof(arr) / sizeof(arr[0]))
 
/*
 * Definitions for unsigned "ints"; especially for use in data structures
 *  that will be shared among (potentially) different cpu's (we punt on
 *  byte ordering problems tho)
 */
 
typedef unsigned char   u8;
typedef unsigned short  u16;
typedef unsigned long   u32;
 
/*
 * vars controlled by command line options
 */
 
int verbose = FALSE;                    /* be verbose */
int test_only = FALSE;                  /* test only */
 
extern char *optarg;                    /* getopt(3) control vars */
extern int optind, opterr;
 
char *progname;                         /* for error() */
 
int process(char *arg);
void error(int errn, ...);
long getparm(char *s, long min, long max, char *msg);
 
#define ERR_ERRNO  (1<<((sizeof(int) * 8) - 2)) /* hi bit; use 'errno' */
#define ERR_FATAL  (ERR_ERRNO / 2)              /* fatal error ; no return */
#define ERR_ABORT  (ERR_ERRNO / 4)              /* fatal error ; abort */
#define ERR_MASK   (ERR_ERRNO | ERR_FATAL | ERR_ABORT) /* all */
 
#define stol(p) strtol(p, (char **) NULL, 0)
int  Open(), Read(), Write();
 
int main(
  int argc,
  char **argv
)
{
    register int c;
    int showusage = FALSE;                      /* usage error? */
    int rc = 0;
 
    /*
     * figure out invocation leaf-name
     */
 
    if ((progname = strrchr(argv[0], '/')) == (char *) NULL)
        progname = argv[0];
    else
        progname++;
 
    argv[0] = progname;                         /* for getopt err reporting */
 
    /*
     *  Check options and arguments.
     */
 
    opterr = 0;                                 /* we'll report all errors */
    while ((c = getopt(argc, argv, GETOPTARGS)) != EOF)
        switch (c)
        {
            case 't':                           /* toggle test only mode */
                test_only = ! test_only;
                break;
 
            case 'v':                           /* toggle verbose */
                verbose = ! verbose;
                break;
 
            case '?':
                showusage = TRUE;
        }
 
    if (showusage)
    {
        (void) fprintf(stderr, "%s", USAGE);
        exit(1);
    }
 
    /*
     *  traverse and process the arguments
     */
 
    for ( ; argv[optind]; optind++)
        if (Failed(process(argv[optind])))
            rc = FAILURE;
 
    return rc;
}
 
 
/*
 * process(arg)
 */
 
int
process(char *arg)
{
  FILE   *in;
  FILE   *out = (FILE *) 0;
  char    outname[ MAX_PATH ];
  char   *bptr;
  char    buffer[ BUFFER_SIZE ];
  int     length;
  int     line_number;
  int     rc = SUCCESS;  /* succeed by default */
 
  in = fopen( arg, "r" );
  if (!in)
    error( ERR_ERRNO | ERR_FATAL, "Unable to open file (%s)\n", arg );
 
  if ( !test_only ) {
    sprintf( outname, "%s.eoltmp", arg );
 
    out = fopen( outname, "w" );
    if (!out)
      error( ERR_ERRNO | ERR_FATAL, "Unable to open file (%s)\n", arg );
  }
 
  if ( verbose )
    fprintf( stderr, "Processing %s\n", arg );
 
  for ( line_number=1 ; ; line_number++ ) {
    bptr = fgets( buffer, BUFFER_SIZE, in );
    if (!bptr)
      break;
 
    /*
     *  Don't count the carriage return.
     */
 
    length = strlen( buffer ) - 1;
 
    if ( buffer[ length ] != '\n' )
      error(ERR_ERRNO|ERR_FATAL, "Line %d too long in %s\n", line_number, arg);
 
    while ( isspace( (int) buffer[ length ] ) )
      buffer[ length-- ] = '\0';
 
    if ( test_only ) {
      fprintf( stderr, "%s\n", arg );
      break;
    }
 
    fprintf( out, "%s\n", buffer );
  }
 
  fclose( in );
  if ( !test_only ) {
    fclose( out );
    rename( outname, arg );
  }
  return rc;
}
 
/*
 * error(errn, arglist)
 *      report an error to stderr using printf(3) conventions.
 *      Any output is preceded by '<progname>: '
 *
 * Uses ERR_FATAL bit to request exit(errn)
 *      ERR_ABORT to request abort()
 *      ERR_ERRNO to indicate use of errno instead of argument.
 *
 * If resulting 'errn' is non-zero, it is assumed to be an 'errno' and its
 *      associated error message is appended to the output.
 */
 
/*VARARGS*/
 
void
error(int error_flag, ...)
{
    va_list arglist;
    register char *format;
    int local_errno;
 
    extern int errno;
 
    (void) fflush(stdout);          /* in case stdout/stderr same */
 
    local_errno = error_flag & ~ERR_MASK;
    if (error_flag & ERR_ERRNO)     /* use errno? */
        local_errno = errno;
 
    va_start(arglist, error_flag);
    format = va_arg(arglist, char *);
    (void) fprintf(stderr, "%s: ", progname);
    (void) vfprintf(stderr, format, arglist);
    va_end(arglist);
 
    if (local_errno)
      (void) fprintf(stderr, " (%s)\n", strerror(local_errno));
    else
      (void) fprintf(stderr, "\n");
 
    (void) fflush(stderr);
 
    if (error_flag & (ERR_FATAL | ERR_ABORT))
    {
        if (error_flag & ERR_FATAL)
        {
            error(0, "fatal error, exiting");
            exit(local_errno ? local_errno : 1);
        }
        else
        {
            error(0, "fatal error, aborting");
            abort();
        }
    }
}
 
long
getparm(char *s,
        long min,
        long max,
        char *msg)
{
    long val;
 
    if ( ! strchr("0123456789-", *s))
    {
        error(ERR_FATAL, "'%s' is not a number", s);
        return min;
    }
 
    val = strtol(s, (char **) NULL, 0);
    if ((val < min) || (val > max))
    {
        if (min == max)
            error(ERR_FATAL, "%s can only be %ld", s, min);
        else
            error(ERR_FATAL, "%s must be between %ld and %ld", msg, min, max);
    }
 
    return val;
}
 
 
/*
 * Open()
 *      Perform open(2), returning the file descriptor.  Prints
 *      error message if open fails.
 */
 
int
Open(char *file,
     int oflag,
     int mode)
{
    int O_fd;
 
    if (Failed(O_fd = open(file, oflag, mode)))
        error(
          ERR_ERRNO | ERR_FATAL,
          "open('%s', 0x%x, 0%o) failed", file, oflag, mode
        );
 
    return O_fd;
}
 
/*
 * Read()
 *      Perform read(2); prints error message if fails.
 */
 
int
Read(int file,
     char *buffer,
     unsigned int count)
{
    int nbytes;
 
    if (Failed(nbytes = read(file, buffer, count)))
        error(
          ERR_ERRNO | ERR_FATAL,
          "read(%d, 0x%x, %d) failed", file, buffer, count
        );
 
    return nbytes;
}
 
/*
 * Write()
 *      Perform write(2); prints error message if fails.
 */
 
int
Write(int file,
      char *buffer,
      unsigned int count)
{
    int nbytes;
 
    if (Failed(nbytes = write(file, buffer, count)))
        error(
          ERR_ERRNO | ERR_FATAL,
          "write(%d, 0x%x, %d) failed", file, buffer, count
        );
 
    return nbytes;
}

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Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [rtos/] [rtems/] [tools/] [build/] [eolstrip.c] - Blame information for rev 318

Line No.	Rev	Author	Line
1	30	unneback	`/*`
2			`* eolstrip - strip white space from end of lines`
3			`*`
4			`* This program strips the white space from the end of every line in the`
5			`* specified program.`
6			`*`
7			`* usage: eolstrip [ -v ] [ arg ... ] files...`
8			`* -v -- verbose`
9			`*`
10			`* $Id: eolstrip.c,v 1.2 2001-09-27 12:02:53 chris Exp $`
11			`*/`
12
13			`#define GETOPTARGS "vt"`
14
15			`char *USAGE = "\`
16			`usage: cklength [ -v ] [ arg ... ] files... \n\`
17			`-v -- verbose\n\`
18			`-t -- test only .. DO NOT OVERWRITE FILE!!!\n\`
19			`\n\`
20			`Strip the white space from the end of every line on the list of files.\n\`
21			`";`
22
23			`#include <stdio.h>`
24			`#include <stdlib.h>`
25			`#include <fcntl.h>`
26			`#include <ctype.h>`
27			`#include <stdlib.h>`
28			`#include <unistd.h>`
29			`#include <string.h>`
30			`#include <memory.h>`
31			`#include <stdarg.h>`
32			`#include <errno.h>`
33
34			`#include "config.h"`
35
36			`#ifndef VMS`
37			`#ifndef HAVE_STRERROR`
38			`extern int sys_nerr;`
39			`extern char *sys_errlist[];`
40
41			`#define strerror( _err ) \`
42			`((_err) < sys_nerr) ? sys_errlist [(_err)] : "unknown error"`
43
44			`#else /* HAVE_STRERROR */`
45			`char *strerror ();`
46			`#endif`
47			`#else /* VMS */`
48			`char *strerror (int,...);`
49			`#endif`
50
51
52			`#define BUFFER_SIZE 2048`
53			`#define MAX_PATH 2048`
54
55			`#define SUCCESS 0`
56			`#define FAILURE -1`
57			`#define Failed(x) (((int) (x)) == FAILURE)`
58			`#define TRUE 1`
59			`#define FALSE 0`
60			`#define STREQ(a,b) (strcmp(a,b) == 0)`
61			`#define NUMELEMS(arr) (sizeof(arr) / sizeof(arr[0]))`
62
63			`/*`
64			`* Definitions for unsigned "ints"; especially for use in data structures`
65			`* that will be shared among (potentially) different cpu's (we punt on`
66			`* byte ordering problems tho)`
67			`*/`
68
69			`typedef unsigned char u8;`
70			`typedef unsigned short u16;`
71			`typedef unsigned long u32;`
72
73			`/*`
74			`* vars controlled by command line options`
75			`*/`
76
77			`int verbose = FALSE; /* be verbose */`
78			`int test_only = FALSE; /* test only */`
79
80			`extern char optarg; / getopt(3) control vars */`
81			`extern int optind, opterr;`
82
83			`char progname; / for error() */`
84
85			`int process(char *arg);`
86			`void error(int errn, ...);`
87			`long getparm(char s, long min, long max, char msg);`
88
89			`#define ERR_ERRNO (1<<((sizeof(int) * 8) - 2)) /* hi bit; use 'errno' */`
90			`#define ERR_FATAL (ERR_ERRNO / 2) /* fatal error ; no return */`
91			`#define ERR_ABORT (ERR_ERRNO / 4) /* fatal error ; abort */`
92			`#define ERR_MASK (ERR_ERRNO \| ERR_FATAL \| ERR_ABORT) /* all */`
93
94			`#define stol(p) strtol(p, (char **) NULL, 0)`
95			`int Open(), Read(), Write();`
96
97			`int main(`
98			`int argc,`
99			`char **argv`
100			`)`
101			`{`
102			`register int c;`
103			`int showusage = FALSE; /* usage error? */`
104			`int rc = 0;`
105
106			`/*`
107			`* figure out invocation leaf-name`
108			`*/`
109
110			`if ((progname = strrchr(argv[0], '/')) == (char *) NULL)`
111			`progname = argv[0];`
112			`else`
113			`progname++;`
114
115			`argv[0] = progname; /* for getopt err reporting */`
116
117			`/*`
118			`* Check options and arguments.`
119			`*/`
120
121			`opterr = 0; /* we'll report all errors */`
122			`while ((c = getopt(argc, argv, GETOPTARGS)) != EOF)`
123			`switch (c)`
124			`{`
125			`case 't': /* toggle test only mode */`
126			`test_only = ! test_only;`
127			`break;`
128
129			`case 'v': /* toggle verbose */`
130			`verbose = ! verbose;`
131			`break;`
132
133			`case '?':`
134			`showusage = TRUE;`
135			`}`
136
137			`if (showusage)`
138			`{`
139			`(void) fprintf(stderr, "%s", USAGE);`
140			`exit(1);`
141			`}`
142
143			`/*`
144			`* traverse and process the arguments`
145			`*/`
146
147			`for ( ; argv[optind]; optind++)`
148			`if (Failed(process(argv[optind])))`
149			`rc = FAILURE;`
150
151			`return rc;`
152			`}`
153
154
155			`/*`
156			`* process(arg)`
157			`*/`
158
159			`int`
160			`process(char *arg)`
161			`{`
162			`FILE *in;`
163			`FILE out = (FILE ) 0;`
164			`char outname[ MAX_PATH ];`
165			`char *bptr;`
166			`char buffer[ BUFFER_SIZE ];`
167			`int length;`
168			`int line_number;`
169			`int rc = SUCCESS; /* succeed by default */`
170
171			`in = fopen( arg, "r" );`
172			`if (!in)`
173			`error( ERR_ERRNO \| ERR_FATAL, "Unable to open file (%s)\n", arg );`
174
175			`if ( !test_only ) {`
176			`sprintf( outname, "%s.eoltmp", arg );`
177
178			`out = fopen( outname, "w" );`
179			`if (!out)`
180			`error( ERR_ERRNO \| ERR_FATAL, "Unable to open file (%s)\n", arg );`
181			`}`
182
183			`if ( verbose )`
184			`fprintf( stderr, "Processing %s\n", arg );`
185
186			`for ( line_number=1 ; ; line_number++ ) {`
187			`bptr = fgets( buffer, BUFFER_SIZE, in );`
188			`if (!bptr)`
189			`break;`
190
191			`/*`
192			`* Don't count the carriage return.`
193			`*/`
194
195			`length = strlen( buffer ) - 1;`
196
197			`if ( buffer[ length ] != '\n' )`
198			`error(ERR_ERRNO\|ERR_FATAL, "Line %d too long in %s\n", line_number, arg);`
199
200			`while ( isspace( (int) buffer[ length ] ) )`
201			`buffer[ length-- ] = '\0';`
202
203			`if ( test_only ) {`
204			`fprintf( stderr, "%s\n", arg );`
205			`break;`
206			`}`
207
208			`fprintf( out, "%s\n", buffer );`
209			`}`
210
211			`fclose( in );`
212			`if ( !test_only ) {`
213			`fclose( out );`
214			`rename( outname, arg );`
215			`}`
216			`return rc;`
217			`}`
218
219			`/*`
220			`* error(errn, arglist)`
221			`* report an error to stderr using printf(3) conventions.`
222			`* Any output is preceded by '<progname>: '`
223			`*`
224			`* Uses ERR_FATAL bit to request exit(errn)`
225			`* ERR_ABORT to request abort()`
226			`* ERR_ERRNO to indicate use of errno instead of argument.`
227			`*`
228			`* If resulting 'errn' is non-zero, it is assumed to be an 'errno' and its`
229			`* associated error message is appended to the output.`
230			`*/`
231
232			`/VARARGS/`
233
234			`void`
235			`error(int error_flag, ...)`
236			`{`
237			`va_list arglist;`
238			`register char *format;`
239			`int local_errno;`
240
241			`extern int errno;`
242
243			`(void) fflush(stdout); /* in case stdout/stderr same */`
244
245			`local_errno = error_flag & ~ERR_MASK;`
246			`if (error_flag & ERR_ERRNO) /* use errno? */`
247			`local_errno = errno;`
248
249			`va_start(arglist, error_flag);`
250			`format = va_arg(arglist, char *);`
251			`(void) fprintf(stderr, "%s: ", progname);`
252			`(void) vfprintf(stderr, format, arglist);`
253			`va_end(arglist);`
254
255			`if (local_errno)`
256			`(void) fprintf(stderr, " (%s)\n", strerror(local_errno));`
257			`else`
258			`(void) fprintf(stderr, "\n");`
259
260			`(void) fflush(stderr);`
261
262			`if (error_flag & (ERR_FATAL \| ERR_ABORT))`
263			`{`
264			`if (error_flag & ERR_FATAL)`
265			`{`
266			`error(0, "fatal error, exiting");`
267			`exit(local_errno ? local_errno : 1);`
268			`}`
269			`else`
270			`{`
271			`error(0, "fatal error, aborting");`
272			`abort();`
273			`}`
274			`}`
275			`}`
276
277			`long`
278			`getparm(char *s,`
279			`long min,`
280			`long max,`
281			`char *msg)`
282			`{`
283			`long val;`
284
285			`if ( ! strchr("0123456789-", *s))`
286			`{`
287			`error(ERR_FATAL, "'%s' is not a number", s);`
288			`return min;`
289			`}`
290
291			`val = strtol(s, (char **) NULL, 0);`
292			`if ((val < min) \|\| (val > max))`
293			`{`
294			`if (min == max)`
295			`error(ERR_FATAL, "%s can only be %ld", s, min);`
296			`else`
297			`error(ERR_FATAL, "%s must be between %ld and %ld", msg, min, max);`
298			`}`
299
300			`return val;`
301			`}`
302
303
304			`/*`
305			`* Open()`
306			`* Perform open(2), returning the file descriptor. Prints`
307			`* error message if open fails.`
308			`*/`
309
310			`int`
311			`Open(char *file,`
312			`int oflag,`
313			`int mode)`
314			`{`
315			`int O_fd;`
316
317			`if (Failed(O_fd = open(file, oflag, mode)))`
318			`error(`
319			`ERR_ERRNO \| ERR_FATAL,`
320			`"open('%s', 0x%x, 0%o) failed", file, oflag, mode`
321			`);`
322
323			`return O_fd;`
324			`}`
325
326			`/*`
327			`* Read()`
328			`* Perform read(2); prints error message if fails.`
329			`*/`
330
331			`int`
332			`Read(int file,`
333			`char *buffer,`
334			`unsigned int count)`
335			`{`
336			`int nbytes;`
337
338			`if (Failed(nbytes = read(file, buffer, count)))`
339			`error(`
340			`ERR_ERRNO \| ERR_FATAL,`
341			`"read(%d, 0x%x, %d) failed", file, buffer, count`
342			`);`
343
344			`return nbytes;`
345			`}`
346
347			`/*`
348			`* Write()`
349			`* Perform write(2); prints error message if fails.`
350			`*/`
351
352			`int`
353			`Write(int file,`
354			`char *buffer,`
355			`unsigned int count)`
356			`{`
357			`int nbytes;`
358
359			`if (Failed(nbytes = write(file, buffer, count)))`
360			`error(`
361			`ERR_ERRNO \| ERR_FATAL,`
362			`"write(%d, 0x%x, %d) failed", file, buffer, count`
363			`);`
364
365			`return nbytes;`
366			`}`