From f15aa3a552022743398a652165d76bf912c715e5 Mon Sep 17 00:00:00 2001
From: Guillaume Cottenceau <gc@mandriva.com>
Date: Mon, 14 May 2001 13:47:49 +0000
Subject: Initial revision

---
 mdk-stage1/dietlibc/libcruft/entlib.c | 153 ++++++++++++++++++++++++++++++++++
 1 file changed, 153 insertions(+)
 create mode 100644 mdk-stage1/dietlibc/libcruft/entlib.c

(limited to 'mdk-stage1/dietlibc/libcruft/entlib.c')

diff --git a/mdk-stage1/dietlibc/libcruft/entlib.c b/mdk-stage1/dietlibc/libcruft/entlib.c
new file mode 100644
index 000000000..f88b3f057
--- /dev/null
+++ b/mdk-stage1/dietlibc/libcruft/entlib.c
@@ -0,0 +1,153 @@
+/*
+ * dietlibc/lib/entlib.c - Generic delimited-line parsing library
+ *
+ * Copyright 2001 Jeff Garzik <jgarzik@mandrakesoft.com>
+ *
+ * This is a brand new implementation, based on the interface
+ * described in man-pages-1.34-1mdk man pages package.
+ */
+
+
+#include "entlib.h" /* this is our only include */
+
+
+/*
+ * __ent_start
+ *
+ * Allocates and zeroes the module's state structure,
+ * and open a handle to /etc/passwd.
+ *
+ * Returns -1 on failure and sets errno, or zero for success.
+ */
+
+int __ent_start(const char *pathname, struct __ent_state **st_ref)
+{
+	struct __ent_state *st;
+	
+	if (*st_ref)
+		return 0;
+
+	st = calloc(1, sizeof(*st));
+	if (!st) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	st->fd = open(pathname, O_RDONLY);
+	if (st->fd == -1) {
+		/* errno should have been set by open(2) */
+		free(st);
+		st = NULL;
+		return -1;
+	}
+
+	*st_ref = st;
+	return 0;
+}
+
+
+/*
+ * __ent_get_line
+ *
+ * Eliminates a previous line from the buffer, if any.
+ * Then reads in a new line from /etc/passwd, if necessary.
+ *
+ * Returns -1 on failure, or zero for success.
+ */
+
+int __ent_get_line(struct __ent_state *st)
+{
+	int rc;
+
+	/* overwrite previous line, by shifting the rest
+	 * of the rest to the front of the buffer
+	 */
+	if (st->bufptr) {
+		unsigned int slop = st->buflen - st->bufptr;
+		memmove(st->ent_buf, &st->ent_buf[st->bufptr], slop);
+		st->bufptr = 0;
+		st->buflen = slop;
+		st->ent_buf[st->buflen] = 0; /* null terminate */
+	}
+
+	if (st->buflen == __ENT_BUFSIZ || strchr(st->ent_buf, '\n'))
+		return 0;
+
+	rc = read(st->fd, &st->ent_buf[st->buflen], __ENT_BUFSIZ - st->buflen);
+	if (rc < 0)
+		return -1;
+
+	st->buflen += rc;
+	if (st->buflen == 0)
+		return -1;
+
+	return 0;
+}
+
+
+/*
+ * __ent_split
+ *
+ * Splits a string into parts based on a delimiter.
+ * Stops processing when \n is reached also.
+ *
+ * Returns -1 on failure, or zero on success.
+ */
+
+int __ent_split(struct __ent_state *st, char **parts,
+		int n_parts, int delimiter, int require_exact)
+{
+	char *s = &st->ent_buf[st->bufptr];
+	int idx = 0;
+
+	/* empty list */
+	if (!*s) {
+		if (!require_exact)
+			return 0;
+		return -1;
+	}
+
+	/* scan through string, sticking string pointers
+	 * into parts[] as delimiters are found
+	 */
+	parts[idx++] = s;
+	while (*s) {
+		st->bufptr++;
+		if (*s == '\n') {
+			*s = 0; /* null terminate */
+			break;
+		}
+		if (*s == delimiter) {
+			*s = 0; /* null terminate */
+			/* boundary error: too many delimiters */
+			if (idx == n_parts)
+				return -1;
+			s++;
+			parts[idx++] = s;
+		} else {
+			s++;
+		}
+	}
+
+	if (!require_exact)
+		return 0;
+	return (n_parts == idx) ? 0 : -1;
+}
+
+
+void __ent_set(struct __ent_state *st)
+{
+	if (!st)
+		return;
+	st->buflen = st->bufptr = 0;
+	lseek(st->fd, 0, SEEK_SET);
+}
+
+
+void __ent_end(struct __ent_state *st)
+{
+	if (!st)
+		return;
+	close(st->fd);
+	free(st);
+}
-- 
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