Patch 7.3.152
Problem: Xxd does not check for errors from library functions.
Solution: Add error checks. (Florian Zumbiehl)
Files: src/xxd/xxd.c
*** ../vim-7.3.151/src/xxd/xxd.c 2010-08-15 21:57:25.000000000 +0200
--- src/xxd/xxd.c 2011-04-01 18:56:11.000000000 +0200
***************
*** 49,54 ****
--- 49,56 ----
* option -b added: 01000101 binary output in normal format.
* 16.05.00 Added VAXC changes by Stephen P. Wall
* 16.05.00 Improved MMS file and merge for VMS by Zoltan Arpadffy
+ * 2011 March Better error handling by Florian Zumbiehl.
+ * 2011 April Formatting by Bram Moolenaar
*
* (c) 1990-1998 by Juergen Weigert (jnwei...@informatik.uni-erlangen.de)
*
***************
*** 207,214 ****
/* Let's collect some prototypes */
/* CodeWarrior is really picky about missing prototypes */
! static void exit_with_usage __P((char *));
! static int huntype __P((FILE *, FILE *, FILE *, char *, int, int, long));
static void xxdline __P((FILE *, char *, int));
#define TRY_SEEK /* attempt to use lseek, or skip forward by reading */
--- 209,216 ----
/* Let's collect some prototypes */
/* CodeWarrior is really picky about missing prototypes */
! static void exit_with_usage __P((void));
! static int huntype __P((FILE *, FILE *, FILE *, int, int, long));
static void xxdline __P((FILE *, char *, int));
#define TRY_SEEK /* attempt to use lseek, or skip forward by reading */
***************
*** 223,231 ****
#define HEX_CINCLUDE 2
#define HEX_BITS 3 /* not hex a dump, but bits: 01111001 */
! static void
! exit_with_usage(pname)
! char *pname;
{
fprintf(stderr, "Usage:\n %s [options] [infile [outfile]]\n", pname);
fprintf(stderr, " or\n %s -r [-s [-]offset] [-c cols] [-ps]
[infile [outfile]]\n", pname);
--- 225,234 ----
#define HEX_CINCLUDE 2
#define HEX_BITS 3 /* not hex a dump, but bits: 01111001 */
! static char *pname;
!
! static void
! exit_with_usage()
{
fprintf(stderr, "Usage:\n %s [options] [infile [outfile]]\n", pname);
fprintf(stderr, " or\n %s -r [-s [-]offset] [-c cols] [-ps]
[infile [outfile]]\n", pname);
***************
*** 252,257 ****
--- 255,269 ----
exit(1);
}
+ static void
+ die(ret)
+ int ret;
+ {
+ fprintf(stderr, "%s: ", pname);
+ perror(NULL);
+ exit(ret);
+ }
+
/*
* Max. cols binary characters are decoded from the input stream per line.
* Two adjacent garbage characters after evaluated data delimit valid data.
***************
*** 259,270 ****
*
* The name is historic and came from 'undo type opt h'.
*/
! static int
! huntype(fpi, fpo, fperr, pname, cols, hextype, base_off)
! FILE *fpi, *fpo, *fperr;
! char *pname;
! int cols, hextype;
! long base_off;
{
int c, ign_garb = 1, n1 = -1, n2 = 0, n3, p = cols;
long have_off = 0, want_off = 0;
--- 271,281 ----
*
* The name is historic and came from 'undo type opt h'.
*/
! static int
! huntype(fpi, fpo, fperr, cols, hextype, base_off)
! FILE *fpi, *fpo, *fperr;
! int cols, hextype;
! long base_off;
{
int c, ign_garb = 1, n1 = -1, n2 = 0, n3, p = cols;
long have_off = 0, want_off = 0;
***************
*** 318,324 ****
if (base_off + want_off != have_off)
{
! fflush(fpo);
#ifdef TRY_SEEK
c = fseek(fpo, base_off + want_off - have_off, 1);
if (c >= 0)
--- 329,336 ----
if (base_off + want_off != have_off)
{
! if (fflush(fpo) != 0)
! die(3);
#ifdef TRY_SEEK
c = fseek(fpo, base_off + want_off - have_off, 1);
if (c >= 0)
***************
*** 330,341 ****
return 5;
}
for (; have_off < base_off + want_off; have_off++)
! putc(0, fpo);
}
if (n2 >= 0 && n1 >= 0)
{
! putc((n2 << 4) | n1, fpo);
have_off++;
want_off++;
n1 = -1;
--- 342,355 ----
return 5;
}
for (; have_off < base_off + want_off; have_off++)
! if (putc(0, fpo) == EOF)
! die(3);
}
if (n2 >= 0 && n1 >= 0)
{
! if (putc((n2 << 4) | n1, fpo) == EOF)
! die(3);
have_off++;
want_off++;
n1 = -1;
***************
*** 345,350 ****
--- 359,366 ----
want_off = 0;
while ((c = getc(fpi)) != '\n' && c != EOF)
;
+ if (c == EOF && ferror(fpi))
+ die(2);
ign_garb = 1;
}
}
***************
*** 355,369 ****
want_off = 0;
while ((c = getc(fpi)) != '\n' && c != EOF)
;
ign_garb = 1;
}
}
! fflush(fpo);
#ifdef TRY_SEEK
fseek(fpo, 0L, 2);
#endif
! fclose(fpo);
! fclose(fpi);
return 0;
}
--- 371,390 ----
want_off = 0;
while ((c = getc(fpi)) != '\n' && c != EOF)
;
+ if (c == EOF && ferror(fpi))
+ die(2);
ign_garb = 1;
}
}
! if (fflush(fpo) != 0)
! die(3);
#ifdef TRY_SEEK
fseek(fpo, 0L, 2);
#endif
! if (fclose(fpo) != 0)
! die(3);
! if (fclose(fpi) != 0)
! die(2);
return 0;
}
***************
*** 379,389 ****
*
* If nz is always positive, lines are never suppressed.
*/
! static void
xxdline(fp, l, nz)
! FILE *fp;
! char *l;
! int nz;
{
static char z[LLEN+1];
static int zero_seen = 0;
--- 400,410 ----
*
* If nz is always positive, lines are never suppressed.
*/
! static void
xxdline(fp, l, nz)
! FILE *fp;
! char *l;
! int nz;
{
static char z[LLEN+1];
static int zero_seen = 0;
***************
*** 398,409 ****
if (nz < 0)
zero_seen--;
if (zero_seen == 2)
! fputs(z, fp);
if (zero_seen > 2)
! fputs("*\n", fp);
}
if (nz >= 0 || zero_seen > 0)
! fputs(l, fp);
if (nz)
zero_seen = 0;
}
--- 419,433 ----
if (nz < 0)
zero_seen--;
if (zero_seen == 2)
! if (fputs(z, fp) == EOF)
! die(3);
if (zero_seen > 2)
! if (fputs("*\n", fp) == EOF)
! die(3);
}
if (nz >= 0 || zero_seen > 0)
! if (fputs(l, fp) == EOF)
! die(3);
if (nz)
zero_seen = 0;
}
***************
*** 439,448 ****
0070,0071,0372,0373,0374,0375,0376,0377
};
! int
main(argc, argv)
! int argc;
! char *argv[];
{
FILE *fp, *fpo;
int c, e, p = 0, relseek = 1, negseek = 0, revert = 0;
--- 463,472 ----
0070,0071,0372,0373,0374,0375,0376,0377
};
! int
main(argc, argv)
! int argc;
! char *argv[];
{
FILE *fp, *fpo;
int c, e, p = 0, relseek = 1, negseek = 0, revert = 0;
***************
*** 452,458 ****
int grplen; /* total chars per octet group */
long length = -1, n = 0, seekoff = 0;
char l[LLEN+1];
! char *pname, *pp;
#ifdef AMIGA
/* This program doesn't work when started from the Workbench */
--- 476,482 ----
int grplen; /* total chars per octet group */
long length = -1, n = 0, seekoff = 0;
char l[LLEN+1];
! char *pp;
#ifdef AMIGA
/* This program doesn't work when started from the Workbench */
***************
*** 495,501 ****
else
{
if (!argv[2])
! exit_with_usage(pname);
cols = (int)strtol(argv[2], NULL, 0);
argv++;
argc--;
--- 519,525 ----
else
{
if (!argv[2])
! exit_with_usage();
cols = (int)strtol(argv[2], NULL, 0);
argv++;
argc--;
***************
*** 508,514 ****
else
{
if (!argv[2])
! exit_with_usage(pname);
octspergrp = (int)strtol(argv[2], NULL, 0);
argv++;
argc--;
--- 532,538 ----
else
{
if (!argv[2])
! exit_with_usage();
octspergrp = (int)strtol(argv[2], NULL, 0);
argv++;
argc--;
***************
*** 531,537 ****
else
{
if (!argv[2])
! exit_with_usage(pname);
#ifdef TRY_SEEK
if (argv[2][0] == '+')
relseek++;
--- 555,561 ----
else
{
if (!argv[2])
! exit_with_usage();
#ifdef TRY_SEEK
if (argv[2][0] == '+')
relseek++;
***************
*** 550,556 ****
else
{
if (!argv[2])
! exit_with_usage(pname);
length = strtol(argv[2], (char **)NULL, 0);
argv++;
argc--;
--- 574,580 ----
else
{
if (!argv[2])
! exit_with_usage();
length = strtol(argv[2], (char **)NULL, 0);
argv++;
argc--;
***************
*** 563,569 ****
break;
}
else if (pp[0] == '-' && pp[1]) /* unknown option */
! exit_with_usage(pname);
else
break; /* not an option */
--- 587,593 ----
break;
}
else if (pp[0] == '-' && pp[1]) /* unknown option */
! exit_with_usage();
else
break; /* not an option */
***************
*** 602,608 ****
octspergrp = cols;
if (argc > 3)
! exit_with_usage(pname);
if (argc == 1 || (argv[1][0] == '-' && !argv[1][1]))
BIN_ASSIGN(fp = stdin, !revert);
--- 626,632 ----
octspergrp = cols;
if (argc > 3)
! exit_with_usage();
if (argc == 1 || (argv[1][0] == '-' && !argv[1][1]))
BIN_ASSIGN(fp = stdin, !revert);
***************
*** 640,646 ****
fprintf(stderr, "%s: sorry, cannot revert this type of hexdump\n",
pname);
return -1;
}
! return huntype(fp, fpo, stderr, pname, cols, hextype,
negseek ? -seekoff : seekoff);
}
--- 664,670 ----
fprintf(stderr, "%s: sorry, cannot revert this type of hexdump\n",
pname);
return -1;
}
! return huntype(fp, fpo, stderr, cols, hextype,
negseek ? -seekoff : seekoff);
}
***************
*** 664,670 ****
long s = seekoff;
while (s--)
! (void)getc(fp);
}
}
--- 688,703 ----
long s = seekoff;
while (s--)
! if (getc(fp) == EOF)
! if (ferror(fp))
! {
! die(2);
! }
! else
! {
! fprintf(stderr, "%s: sorry cannot seek.\n", pname);
! return 4;
! }
}
}
***************
*** 672,725 ****
{
if (fp != stdin)
{
! fprintf(fpo, "unsigned char %s", isdigit((int)argv[1][0]) ? "__" :
"");
for (e = 0; (c = argv[1][e]) != 0; e++)
! putc(isalnum(c) ? c : '_', fpo);
! fputs("[] = {\n", fpo);
}
p = 0;
while ((length < 0 || p < length) && (c = getc(fp)) != EOF)
{
! fprintf(fpo, (hexx == hexxa) ? "%s0x%02x" : "%s0X%02X",
! (p % cols) ? ", " : ",\n "+2*!p, c);
p++;
}
if (p)
! fputs("\n};\n"+3*(fp == stdin), fpo);
if (fp != stdin)
{
! fprintf(fpo, "unsigned int %s", isdigit((int)argv[1][0]) ? "__" : "");
for (e = 0; (c = argv[1][e]) != 0; e++)
! putc(isalnum(c) ? c : '_', fpo);
! fprintf(fpo, "_len = %d;\n", p);
}
! fclose(fp);
! fclose(fpo);
return 0;
}
if (hextype == HEX_POSTSCRIPT)
{
p = cols;
while ((length < 0 || n < length) && (e = getc(fp)) != EOF)
{
! putchar(hexx[(e >> 4) & 0xf]);
! putchar(hexx[(e ) & 0xf]);
n++;
if (!--p)
{
! putchar('\n');
p = cols;
}
}
if (p < cols)
! putchar('\n');
! fclose(fp);
! fclose(fpo);
return 0;
}
--- 705,779 ----
{
if (fp != stdin)
{
! if (fprintf(fpo, "unsigned char %s", isdigit((int)argv[1][0]) ? "__"
: "") < 0)
! die(3);
for (e = 0; (c = argv[1][e]) != 0; e++)
! if (putc(isalnum(c) ? c : '_', fpo) == EOF)
! die(3);
! if (fputs("[] = {\n", fpo) == EOF)
! die(3);
}
p = 0;
+ c = 0;
while ((length < 0 || p < length) && (c = getc(fp)) != EOF)
{
! if (fprintf(fpo, (hexx == hexxa) ? "%s0x%02x" : "%s0X%02X",
! (p % cols) ? ", " : ",\n "+2*!p, c) < 0)
! die(3);
p++;
}
+ if (c == EOF && ferror(fp))
+ die(2);
if (p)
! if (fputs("\n};\n" + 3 * (fp == stdin), fpo) == EOF)
! die(3);
if (fp != stdin)
{
! if (fprintf(fpo, "unsigned int %s", isdigit((int)argv[1][0]) ? "__" :
"") < 0)
! die(3);
for (e = 0; (c = argv[1][e]) != 0; e++)
! if (putc(isalnum(c) ? c : '_', fpo) == EOF)
! die(3);
! if (fprintf(fpo, "_len = %d;\n", p) < 0)
! die(3);
}
! if (fclose(fp))
! die(2);
! if (fclose(fpo))
! die(3);
return 0;
}
if (hextype == HEX_POSTSCRIPT)
{
p = cols;
+ e = 0;
while ((length < 0 || n < length) && (e = getc(fp)) != EOF)
{
! if (putc(hexx[(e >> 4) & 0xf], fpo) == EOF
! || putc(hexx[e & 0xf], fpo) == EOF)
! die(3);
n++;
if (!--p)
{
! if (putc('\n', fpo) == EOF)
! die(3);
p = cols;
}
}
+ if (e == EOF && ferror(fp))
+ die(2);
if (p < cols)
! if (putc('\n', fpo) == EOF)
! die(3);
! if (fclose(fp))
! die(2);
! if (fclose(fpo))
! die(3);
return 0;
}
***************
*** 730,735 ****
--- 784,790 ----
else /* hextype == HEX_BITS */
grplen = 8 * octspergrp + 1;
+ e = 0;
while ((length < 0 || n < length) && (e = getc(fp)) != EOF)
{
if (p == 0)
***************
*** 771,776 ****
--- 826,833 ----
p = 0;
}
}
+ if (e == EOF && ferror(fp))
+ die(2);
if (p)
{
l[c = (11 + (grplen * cols - 1)/octspergrp + p)] = '\n'; l[++c] = '\0';
***************
*** 779,785 ****
else if (autoskip)
xxdline(fpo, l, -1); /* last chance to flush out suppressed lines */
! fclose(fp);
! fclose(fpo);
return 0;
}
--- 836,846 ----
else if (autoskip)
xxdline(fpo, l, -1); /* last chance to flush out suppressed lines */
! if (fclose(fp))
! die(2);
! if (fclose(fpo))
! die(3);
return 0;
}
+
+ /* vi:set ts=8 sw=4 sts=2 cino+={2 cino+=n-2 : */
*** ../vim-7.3.151/src/version.c 2011-04-01 16:28:33.000000000 +0200
--- src/version.c 2011-04-01 19:00:26.000000000 +0200
***************
*** 716,717 ****
--- 716,719 ----
{ /* Add new patch number below this line */
+ /**/
+ 152,
/**/
--
Eye have a spelling checker, it came with my PC;
It plainly marks four my revue mistakes I cannot sea.
I've run this poem threw it, I'm sure your please to no,
It's letter perfect in it's weigh, my checker tolled me sew!
/// Bram Moolenaar -- b...@moolenaar.net -- http://www.Moolenaar.net \\\
/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\ an exciting new programming language -- http://www.Zimbu.org ///
\\\ help me help AIDS victims -- http://ICCF-Holland.org ///
--
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