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/*
 *  cklength - check the length of lines in a file
 *
 *  This program check to see if the files passed to it on the command line
 *  contain a line which exceeds the maximum allowable length.  The default
 *  maximum line length is 80.
 *
 *  usage:  cklength  [ -v ] [ arg ... ] files...
 *           -l length   -- maximum line length
 *           -v          -- verbose
 *
 * $Id: cklength.c,v 1.2 2001-09-27 12:02:53 chris Exp $
 */
 
#define GETOPTARGS "l:nNv"
 
char *USAGE = "\
usage:  cklength  [ -v ] [ arg ... ] files... \n\
            -l length   -- maximum line length\n\
            -n          -- report line numbers for offending lines\n\
            -N          -- report line numbers and length for offending lines\n\
            -v          -- verbose\n\
\n\
Print the name of files which have at least 1 line which exceeds the\n\
maximum line length.  The default maximum line length is 80.\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     512
 
#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 report_line_numbers = FALSE;        /* report line numbers of offenders */
int report_line_length = FALSE;         /* report line length of offenders */
 
int line_length = 80;                   /* maximum allowable line length */
 
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 'l':                            /* line length */
                line_length = atoi( optarg );
                if ( line_length < 0 || line_length > BUFFER_SIZE )
                  error(ERR_FATAL, "(%d) is illegal line length\n",line_length);
                break;
 
            case 'n':                           /* toggle report_line_numbers */
                report_line_numbers = ! report_line_numbers;
                break;
 
            case 'N':                           /* toggle both reports */
                report_line_numbers = ! report_line_numbers;
                report_line_length  = ! report_line_length;
                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;
  char   *bptr;
  char    buffer[ BUFFER_SIZE ];
  int     line_number;
  int     length;
  int     count;
  int     rc = SUCCESS;  /* succeed by default */
 
  in = fopen( arg, "r" );
  if (!in)
    error( ERR_ERRNO | ERR_FATAL, "Unable to open file (%s)\n", arg );
 
  count = 0;
 
  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 ( length <= line_length )
      continue;
 
    if ( count == 0 ) {
      fprintf( stderr, "%s\n", arg );
      if ( !report_line_numbers )
        break;
    }
 
    if ( verbose )
      fprintf( stderr, "TOO LONG:%d: %s\n", line_number, buffer );
 
    if ( report_line_numbers ) {
      if ( report_line_length )
        fprintf( stderr, "%d: %d\n" , line_number, length );
      else
        fprintf( stderr, "%d\n" , line_number );
    }
 
    count++;
 
  }
 
  fclose( in );
  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));
 
    (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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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [tools/] [build/] [cklength.c] - Blame information for rev 359

Line No.	Rev	Author	Line
1	30	unneback	`/*`
2			`* cklength - check the length of lines in a file`
3			`*`
4			`* This program check to see if the files passed to it on the command line`
5			`* contain a line which exceeds the maximum allowable length. The default`
6			`* maximum line length is 80.`
7			`*`
8			`* usage: cklength [ -v ] [ arg ... ] files...`
9			`* -l length -- maximum line length`
10			`* -v -- verbose`
11			`*`
12			`* $Id: cklength.c,v 1.2 2001-09-27 12:02:53 chris Exp $`
13			`*/`
14
15			`#define GETOPTARGS "l:nNv"`
16
17			`char *USAGE = "\`
18			`usage: cklength [ -v ] [ arg ... ] files... \n\`
19			`-l length -- maximum line length\n\`
20			`-n -- report line numbers for offending lines\n\`
21			`-N -- report line numbers and length for offending lines\n\`
22			`-v -- verbose\n\`
23			`\n\`
24			`Print the name of files which have at least 1 line which exceeds the\n\`
25			`maximum line length. The default maximum line length is 80.\n\`
26			`";`
27
28			`#include <stdio.h>`
29			`#include <stdlib.h>`
30			`#include <fcntl.h>`
31			`#include <ctype.h>`
32			`#include <stdlib.h>`
33			`#include <unistd.h>`
34			`#include <string.h>`
35			`#include <memory.h>`
36			`#include <stdarg.h>`
37			`#include <errno.h>`
38
39			`#include "config.h"`
40
41			`#ifndef VMS`
42			`#ifndef HAVE_STRERROR`
43			`extern int sys_nerr;`
44			`extern char *sys_errlist[];`
45
46			`#define strerror( _err ) \`
47			`((_err) < sys_nerr) ? sys_errlist [(_err)] : "unknown error"`
48
49			`#else /* HAVE_STRERROR */`
50			`char *strerror ();`
51			`#endif`
52			`#else /* VMS */`
53			`char *strerror (int,...);`
54			`#endif`
55
56
57			`#define BUFFER_SIZE 512`
58
59			`#define SUCCESS 0`
60			`#define FAILURE -1`
61			`#define Failed(x) (((int) (x)) == FAILURE)`
62			`#define TRUE 1`
63			`#define FALSE 0`
64			`#define STREQ(a,b) (strcmp(a,b) == 0)`
65			`#define NUMELEMS(arr) (sizeof(arr) / sizeof(arr[0]))`
66
67			`/*`
68			`* Definitions for unsigned "ints"; especially for use in data structures`
69			`* that will be shared among (potentially) different cpu's (we punt on`
70			`* byte ordering problems tho)`
71			`*/`
72
73			`typedef unsigned char u8;`
74			`typedef unsigned short u16;`
75			`typedef unsigned long u32;`
76
77			`/*`
78			`* vars controlled by command line options`
79			`*/`
80
81			`int verbose = FALSE; /* be verbose */`
82			`int report_line_numbers = FALSE; /* report line numbers of offenders */`
83			`int report_line_length = FALSE; /* report line length of offenders */`
84
85			`int line_length = 80; /* maximum allowable line length */`
86
87			`extern char optarg; / getopt(3) control vars */`
88			`extern int optind, opterr;`
89
90			`char progname; / for error() */`
91
92			`int process(char *arg);`
93			`void error(int errn, ...);`
94			`long getparm(char s, long min, long max, char msg);`
95
96			`#define ERR_ERRNO (1<<((sizeof(int) * 8) - 2)) /* hi bit; use 'errno' */`
97			`#define ERR_FATAL (ERR_ERRNO / 2) /* fatal error ; no return */`
98			`#define ERR_ABORT (ERR_ERRNO / 4) /* fatal error ; abort */`
99			`#define ERR_MASK (ERR_ERRNO \| ERR_FATAL \| ERR_ABORT) /* all */`
100
101			`#define stol(p) strtol(p, (char **) NULL, 0)`
102			`int Open(), Read(), Write();`
103
104			`int main(`
105			`int argc,`
106			`char **argv`
107			`)`
108			`{`
109			`register int c;`
110			`int showusage = FALSE; /* usage error? */`
111			`int rc = 0;`
112
113			`/*`
114			`* figure out invocation leaf-name`
115			`*/`
116
117			`if ((progname = strrchr(argv[0], '/')) == (char *) NULL)`
118			`progname = argv[0];`
119			`else`
120			`progname++;`
121
122			`argv[0] = progname; /* for getopt err reporting */`
123
124			`/*`
125			`* Check options and arguments.`
126			`*/`
127
128			`opterr = 0; /* we'll report all errors */`
129			`while ((c = getopt(argc, argv, GETOPTARGS)) != EOF)`
130			`switch (c)`
131			`{`
132			`case 'l': /* line length */`
133			`line_length = atoi( optarg );`
134			`if ( line_length < 0 \|\| line_length > BUFFER_SIZE )`
135			`error(ERR_FATAL, "(%d) is illegal line length\n",line_length);`
136			`break;`
137
138			`case 'n': /* toggle report_line_numbers */`
139			`report_line_numbers = ! report_line_numbers;`
140			`break;`
141
142			`case 'N': /* toggle both reports */`
143			`report_line_numbers = ! report_line_numbers;`
144			`report_line_length = ! report_line_length;`
145			`break;`
146
147			`case 'v': /* toggle verbose */`
148			`verbose = ! verbose;`
149			`break;`
150
151			`case '?':`
152			`showusage = TRUE;`
153			`}`
154
155			`if (showusage)`
156			`{`
157			`(void) fprintf(stderr, "%s", USAGE);`
158			`exit(1);`
159			`}`
160
161			`/*`
162			`* traverse and process the arguments`
163			`*/`
164
165			`for ( ; argv[optind]; optind++)`
166			`if (Failed(process(argv[optind])))`
167			`rc = FAILURE;`
168
169			`return rc;`
170			`}`
171
172
173			`/*`
174			`* process(arg)`
175			`*/`
176
177			`int`
178			`process(char *arg)`
179			`{`
180			`FILE *in;`
181			`char *bptr;`
182			`char buffer[ BUFFER_SIZE ];`
183			`int line_number;`
184			`int length;`
185			`int count;`
186			`int rc = SUCCESS; /* succeed by default */`
187
188			`in = fopen( arg, "r" );`
189			`if (!in)`
190			`error( ERR_ERRNO \| ERR_FATAL, "Unable to open file (%s)\n", arg );`
191
192			`count = 0;`
193
194			`for ( line_number=1 ; ; line_number++ ) {`
195			`bptr = fgets( buffer, BUFFER_SIZE, in );`
196			`if (!bptr)`
197			`break;`
198
199			`/*`
200			`* Don't count the carriage return.`
201			`*/`
202
203			`length = strlen( buffer ) - 1;`
204
205			`if ( length <= line_length )`
206			`continue;`
207
208			`if ( count == 0 ) {`
209			`fprintf( stderr, "%s\n", arg );`
210			`if ( !report_line_numbers )`
211			`break;`
212			`}`
213
214			`if ( verbose )`
215			`fprintf( stderr, "TOO LONG:%d: %s\n", line_number, buffer );`
216
217			`if ( report_line_numbers ) {`
218			`if ( report_line_length )`
219			`fprintf( stderr, "%d: %d\n" , line_number, length );`
220			`else`
221			`fprintf( stderr, "%d\n" , line_number );`
222			`}`
223
224			`count++;`
225
226			`}`
227
228			`fclose( in );`
229			`return rc;`
230			`}`
231
232			`/*`
233			`* error(errn, arglist)`
234			`* report an error to stderr using printf(3) conventions.`
235			`* Any output is preceded by '<progname>: '`
236			`*`
237			`* Uses ERR_FATAL bit to request exit(errn)`
238			`* ERR_ABORT to request abort()`
239			`* ERR_ERRNO to indicate use of errno instead of argument.`
240			`*`
241			`* If resulting 'errn' is non-zero, it is assumed to be an 'errno' and its`
242			`* associated error message is appended to the output.`
243			`*/`
244
245			`/VARARGS/`
246
247			`void`
248			`error(int error_flag, ...)`
249			`{`
250			`va_list arglist;`
251			`register char *format;`
252			`int local_errno;`
253
254			`extern int errno;`
255
256			`(void) fflush(stdout); /* in case stdout/stderr same */`
257
258			`local_errno = error_flag & ~ERR_MASK;`
259			`if (error_flag & ERR_ERRNO) /* use errno? */`
260			`local_errno = errno;`
261
262			`va_start(arglist, error_flag);`
263			`format = va_arg(arglist, char *);`
264			`(void) fprintf(stderr, "%s: ", progname);`
265			`(void) vfprintf(stderr, format, arglist);`
266			`va_end(arglist);`
267
268			`if (local_errno)`
269			`(void) fprintf(stderr, " (%s)\n", strerror(local_errno));`
270
271			`(void) fflush(stderr);`
272
273			`if (error_flag & (ERR_FATAL \| ERR_ABORT))`
274			`{`
275			`if (error_flag & ERR_FATAL)`
276			`{`
277			`error(0, "fatal error, exiting");`
278			`exit(local_errno ? local_errno : 1);`
279			`}`
280			`else`
281			`{`
282			`error(0, "fatal error, aborting");`
283			`abort();`
284			`}`
285			`}`
286			`}`
287
288			`long`
289			`getparm(char *s,`
290			`long min,`
291			`long max,`
292			`char *msg)`
293			`{`
294			`long val;`
295
296			`if ( ! strchr("0123456789-", *s))`
297			`{`
298			`error(ERR_FATAL, "'%s' is not a number", s);`
299			`return min;`
300			`}`
301
302			`val = strtol(s, (char **) NULL, 0);`
303			`if ((val < min) \|\| (val > max))`
304			`{`
305			`if (min == max)`
306			`error(ERR_FATAL, "%s can only be %ld", s, min);`
307			`else`
308			`error(ERR_FATAL, "%s must be between %ld and %ld", msg, min, max);`
309			`}`
310
311			`return val;`
312			`}`
313
314
315			`/*`
316			`* Open()`
317			`* Perform open(2), returning the file descriptor. Prints`
318			`* error message if open fails.`
319			`*/`
320
321			`int`
322			`Open(char *file,`
323			`int oflag,`
324			`int mode)`
325			`{`
326			`int O_fd;`
327
328			`if (Failed(O_fd = open(file, oflag, mode)))`
329			`error(`
330			`ERR_ERRNO \| ERR_FATAL,`
331			`"open('%s', 0x%x, 0%o) failed", file, oflag, mode`
332			`);`
333
334			`return O_fd;`
335			`}`
336
337			`/*`
338			`* Read()`
339			`* Perform read(2); prints error message if fails.`
340			`*/`
341
342			`int`
343			`Read(int file,`
344			`char *buffer,`
345			`unsigned int count)`
346			`{`
347			`int nbytes;`
348
349			`if (Failed(nbytes = read(file, buffer, count)))`
350			`error(`
351			`ERR_ERRNO \| ERR_FATAL,`
352			`"read(%d, 0x%x, %d) failed", file, buffer, count`
353			`);`
354
355			`return nbytes;`
356			`}`
357
358			`/*`
359			`* Write()`
360			`* Perform write(2); prints error message if fails.`
361			`*/`
362
363			`int`
364			`Write(int file,`
365			`char *buffer,`
366			`unsigned int count)`
367			`{`
368			`int nbytes;`
369
370			`if (Failed(nbytes = write(file, buffer, count)))`
371			`error(`
372			`ERR_ERRNO \| ERR_FATAL,`
373			`"write(%d, 0x%x, %d) failed", file, buffer, count`
374			`);`
375
376			`return nbytes;`
377			`}`