diff options
Diffstat (limited to 'usr.bin/column/column.c')
| -rw-r--r-- | usr.bin/column/column.c | 52 |
1 files changed, 28 insertions, 24 deletions
diff --git a/usr.bin/column/column.c b/usr.bin/column/column.c index df951bd9946..d3d4079112a 100644 --- a/usr.bin/column/column.c +++ b/usr.bin/column/column.c @@ -1,4 +1,4 @@ -/* $OpenBSD: column.c,v 1.13 2007/05/01 01:26:23 jdixon Exp $ */ +/* $OpenBSD: column.c,v 1.14 2007/08/01 13:30:21 millert Exp $ */ /* $NetBSD: column.c,v 1.4 1995/09/02 05:53:03 jtc Exp $ */ /* @@ -40,7 +40,7 @@ static char copyright[] = #if 0 static char sccsid[] = "@(#)column.c 8.4 (Berkeley) 5/4/95"; #endif -static char rcsid[] = "$OpenBSD: column.c,v 1.13 2007/05/01 01:26:23 jdixon Exp $"; +static char rcsid[] = "$OpenBSD: column.c,v 1.14 2007/08/01 13:30:21 millert Exp $"; #endif /* not lint */ #include <sys/types.h> @@ -56,6 +56,7 @@ static char rcsid[] = "$OpenBSD: column.c,v 1.13 2007/05/01 01:26:23 jdixon Exp void c_columnate(void); void *emalloc(size_t); +void *erealloc(void *, size_t); void input(FILE *); void maketbl(void); void print(void); @@ -218,9 +219,9 @@ maketbl(void) TBL *t; int coloff, cnt; char *p, **lp; - int *lens, *lens2, maxcols; + int *lens, maxcols; TBL *tbl; - char **cols, **cols2; + char **cols; t = tbl = emalloc(entries * sizeof(TBL)); cols = emalloc((maxcols = DEFCOLS) * sizeof(char *)); @@ -229,17 +230,13 @@ maketbl(void) for (coloff = 0, p = *lp; (cols[coloff] = strtok(p, separator)); p = NULL) if (++coloff == maxcols) { - if (!(cols2 = realloc(cols, (u_int)maxcols + - DEFCOLS * sizeof(char *))) || - !(lens2 = realloc(lens, - (u_int)maxcols + DEFCOLS * sizeof(int)))) - err(1, NULL); - cols = cols2; - lens = lens2; - memset(lens + maxcols, 0, - DEFCOLS * sizeof(int)); maxcols += DEFCOLS; + cols = erealloc(cols, maxcols * sizeof(char *)); + lens = erealloc(lens, maxcols * sizeof(int)); + memset(lens + coloff, 0, DEFCOLS * sizeof(int)); } + if (coloff == 0) + continue; t->list = emalloc(coloff * sizeof(char *)); t->len = emalloc(coloff * sizeof(int)); for (t->cols = coloff; --coloff >= 0;) { @@ -250,10 +247,12 @@ maketbl(void) } } for (cnt = 0, t = tbl; cnt < entries; ++cnt, ++t) { - for (coloff = 0; coloff < t->cols - 1; ++coloff) - (void)printf("%s%*s", t->list[coloff], - lens[coloff] - t->len[coloff] + 2, " "); - (void)printf("%s\n", t->list[coloff]); + if (t->cols > 0) { + for (coloff = 0; coloff < t->cols - 1; ++coloff) + (void)printf("%s%*s", t->list[coloff], + lens[coloff] - t->len[coloff] + 2, " "); + (void)printf("%s\n", t->list[coloff]); + } } } @@ -283,13 +282,8 @@ input(FILE *fp) if (maxlength < len) maxlength = len; if (entries == maxentry) { - char **nlist; - size_t nsize = maxentry + DEFNUM; - - if (!(nlist = realloc(list, nsize * sizeof(char *)))) - err(1, NULL); - list = nlist; - maxentry = nsize; + maxentry += DEFNUM; + list = erealloc(list, maxentry * sizeof(char *)); } if (!(list[entries++] = strdup(buf))) err(1, NULL); @@ -307,6 +301,16 @@ emalloc(size_t size) return (p); } +void * +erealloc(void *oldp, size_t size) +{ + void *p; + + if (!(p = realloc(oldp, size))) + err(1, NULL); + return (p); +} + void usage(void) { |