3 * vfgets.c -- virtual fgets
14 vfgets (FILE *in, char **bp)
17 char *cp, *dp, *ep, *fp;
19 static char *pp = NULL;
22 if (!(pp = malloc ((size_t) (len = BUFSIZ))))
23 adios (NULL, "unable to allocate string storage");
25 for (ep = (cp = pp) + len - 1;;) {
26 if (fgets (cp, ep - cp + 1, in) == NULL) {
31 return (ferror (in) && !feof (in) ? -1 : 1);
34 if ((dp = cp + strlen (cp) - 2) < cp || *dp != QUOTE) {
37 adios (NULL, "vfgets() botch -- you lose big");
45 for (fp = dp - 1, toggle = 0; fp >= cp; fp--) {
65 if (!(dp = realloc (pp, (size_t) (len += BUFSIZ)))) {
66 adios (NULL, "unable to allocate string storage");
69 ep = (pp = dp) + len - 1;