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	fix buffer size calculation - ploot - simple plotting tools
	git clone git://bitreich.org/ploot git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65…
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	---
	commit c9c242228362e465b83fc106675981fd45419228
	parent b22b1b174646f828a28144c010961a9c57f54dbd
	Author: Josuah Demangeon <[email protected]>
	Date: Wed, 2 May 2018 05:09:18 +0200

	fix buffer size calculation

	Diffstat:
	M main.c \| 17 +++++++++--------

	1 file changed, 9 insertions(+), 8 deletions(-)
	---
	diff --git a/main.c b/main.c
	@@ -78,14 +78,15 @@ eatol(char *str)
	}

	void
	-add_value(double *v, int bufsiz, int nval, char *field)
	+add_value(Vlist v, int bufsiz, int nval, char *field)
	{
	if (nval >= *bufsiz) {
	- bufsiz = 2;
	- if ((v = realloc(v, *bufsiz)) == NULL)
	+ bufsiz = bufsiz * 2 + 1;
	+ if ((v->v = realloc(v->v, *bufsiz)) == NULL)
	perror("reallocating values buffer"), exit(1);
	}
	- (*v)[nval] = eatol(field);
	+ v->v[nval] = eatol(field);
	+ v->n = nval;
	}

	/*
	@@ -106,7 +107,7 @@ add_each_value(Vlist v, int bufsiz, int ncol, int nval, c…
	for (n = 0; (field = strsep(&line, ",")) != NULL; n++, v++) {
	if (n > ncol)
	fprintf(stderr, "%d: too many fields\n", nval), exit(0…
	- add_value(&v->v, bufsiz, nval, field);
	+ add_value(v, bufsiz, nval, field);
	}
	if (n < ncol)
	fprintf(stderr, "%d: too few fields\n", nval), exit(0);
	@@ -121,15 +122,15 @@ add_each_value(Vlist v, int bufsiz, int ncol, int nval,…
	void
	read_values(Vlist *v, int ncol)
	{
	- int n, nval, bufsiz;
	+ int nval, bufsiz;
	char line[LINE_MAX];

	+ bufsiz = 0;
	for (nval = 0; fgets(line, sizeof(line), stdin); nval++) {
	estriplf(line);
	add_each_value(v, &bufsiz, ncol, nval, line);
	}
	- for (n = 0; n < ncol; n++, v++)
	- v->n = nval;
	+ fprintf(stderr, "nval: %d, bufsiz: %d\n", nval, bufsiz), fflush(stderr…
	}

	static void