diff options
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/dump.c | 36 |
1 files changed, 29 insertions, 7 deletions
diff --git a/libbb/dump.c b/libbb/dump.c index 26dabe5..03ab9f3 100644 --- a/libbb/dump.c +++ b/libbb/dump.c @@ -96,7 +96,7 @@ static void rewrite(FS * fs) enum { NOTOKAY, USEBCNT, USEPREC } sokay; register PR *pr, **nextpr = NULL; register FU *fu; - register char *p1, *p2; + register char *p1, *p2, *p3; char savech, *fmtp; const char *byte_count_str; int nconv, prec = 0; @@ -108,11 +108,13 @@ static void rewrite(FS * fs) */ for (nconv = 0, fmtp = fu->fmt; *fmtp; nextpr = &pr->nextpr) { /* NOSTRICT */ - pr = (PR *) xmalloc(sizeof(PR)); + /* DBU:[dvae@cray.com] calloc so that forward ptrs start out NULL*/ + pr = (PR *) xcalloc(1,sizeof(PR)); if (!fu->nextpr) fu->nextpr = pr; - else - *nextpr = pr; + /* ignore nextpr -- its unused inside the loop and is + * uninitialized 1st time thru. + */ /* bb_dump_skip preceding text and up to the next % sign */ for (p1 = fmtp; *p1 && *p1 != '%'; ++p1); @@ -244,6 +246,24 @@ static void rewrite(FS * fs) pr->fmt = bb_xstrdup(fmtp); *p2 = savech; pr->cchar = pr->fmt + (p1 - fmtp); + + /* DBU:[dave@cray.com] w/o this, trailing fmt text, space is lost. + * Skip subsequent text and up to the next % sign and tack the + * additional text onto fmt: eg. if fmt is "%x is a HEX number", + * we lose the " is a HEX number" part of fmt. + */ + for (p3 = p2; *p3 && *p3 != '%'; p3++); + if (p3 > p2) + { + savech = *p3; + *p3 = '\0'; + if (!(pr->fmt = realloc(pr->fmt, strlen(pr->fmt)+(p3-p2)+1))) + perror_msg_and_die("hexdump"); + strcat(pr->fmt, p2); + *p3 = savech; + p2 = p3; + } + fmtp = p2; /* only one conversion character if byte count */ @@ -346,12 +366,13 @@ static int next(char **argv) static u_char *get(void) { static int ateof = 1; - static u_char *curp, *savp; + static u_char *curp=NULL, *savp; /*DBU:[dave@cray.com]initialize curp */ register int n; int need, nread; u_char *tmpp; if (!curp) { + address = (off_t)0; /*DBU:[dave@cray.com] initialize,initialize..*/ curp = (u_char *) xmalloc(bb_dump_blocksize); savp = (u_char *) xmalloc(bb_dump_blocksize); } else { @@ -673,7 +694,7 @@ void bb_dump_add(const char *fmt) /* start new linked list of format units */ /* NOSTRICT */ - tfs = (FS *) xmalloc(sizeof(FS)); + tfs = (FS *) xcalloc(1,sizeof(FS)); /*DBU:[dave@cray.com] start out NULL */ if (!bb_dump_fshead) { bb_dump_fshead = tfs; } else { @@ -692,7 +713,8 @@ void bb_dump_add(const char *fmt) /* allocate a new format unit and link it in */ /* NOSTRICT */ - tfu = (FU *) xmalloc(sizeof(FU)); + /* DBU:[dave@cray.com] calloc so that forward pointers start out NULL */ + tfu = (FU *) xcalloc(1,sizeof(FU)); *nextfu = tfu; nextfu = &tfu->nextfu; tfu->reps = 1; |