sbase

suckless unix tools
git clone git://git.2f30.org/sbase.git
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getlines.c (924B)


      1 /* See LICENSE file for copyright and license details. */
      2 #include <stdio.h>
      3 #include <stdlib.h>
      4 #include <string.h>
      5 
      6 #include "../text.h"
      7 #include "../util.h"
      8 
      9 void
     10 getlines(FILE *fp, struct linebuf *b)
     11 {
     12 	char *line = NULL;
     13 	size_t size = 0, linelen = 0;
     14 	ssize_t len;
     15 
     16 	while ((len = getline(&line, &size, fp)) > 0) {
     17 		if (++b->nlines > b->capacity) {
     18 			b->capacity += 512;
     19 			b->lines = erealloc(b->lines, b->capacity * sizeof(*b->lines));
     20 		}
     21 		linelen = len;
     22 		b->lines[b->nlines - 1].data = memcpy(emalloc(linelen + 1), line, linelen + 1);
     23 		b->lines[b->nlines - 1].len = linelen;
     24 	}
     25 	free(line);
     26 	if (b->lines && b->nlines && linelen && b->lines[b->nlines - 1].data[linelen - 1] != '\n') {
     27 		b->lines[b->nlines - 1].data = erealloc(b->lines[b->nlines - 1].data, linelen + 2);
     28 		b->lines[b->nlines - 1].data[linelen] = '\n';
     29 		b->lines[b->nlines - 1].data[linelen + 1] = '\0';
     30 		b->lines[b->nlines - 1].len++;
     31 	}
     32 }