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Fix a potential segfault, thanks to Fernando J. Pereda.

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This commit is contained in:
Roy Marples 2008-05-19 13:16:53 +00:00
parent 148caecc7e
commit 775df18a70
1 changed files with 7 additions and 11 deletions
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18
src/librc/librc-misc.c
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@ -59,24 +59,20 @@ ssize_t rc_getline(char **line, size_t *len, FILE *fp)
char *p;
size_t last = 0;
if (feof(fp))
return 0;
do {
while(!feof(fp)) {
if (*line == NULL || last != 0) {
*len += BUFSIZ;
*line = xrealloc(*line, *len);
*line = realloc(*line, *len);
}
p = *line + last;
memset(p, 0, BUFSIZ);
fgets(p, BUFSIZ, fp);
last += strlen(p);
} while (!feof(fp) && (*line)[last - 1] != '\n');
/* Trim the trailing newline */
if (**line && (*line)[last - 1] == '\n')
(*line)[last - 1] = '\0';
if (last && (*line)[last - 1] == '\n') {
(*line)[last - 1] = '\0';
break;
}
}
return last;
}
librc_hidden_def(rc_getline)