LibC: Add getdelim and getline

2 files changed, 33 insertions, 0 deletions

diff --git a/userland/libc/stdio/getdelim.c b/userland/libc/stdio/getdelim.c
new file mode 100644
index 0000000..3a6f23e
--- /dev/null
+++ b/userland/libc/stdio/getdelim.c
@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+size_t getdelim(char **lineptr, size_t *n, int delimiter, FILE *stream) {
+  if (NULL == *lineptr) {
+    *lineptr = malloc(256);
+    *n = 256;
+  }
+  size_t s = 0;
+  for (;;) {
+    char c;
+    if (0 == fread(&c, 1, 1, stream)) {
+      s++;
+      break;
+    }
+    if (c == delimiter) {
+      break;
+    }
+    if (s + 1 >= *n) {
+      *n += 256;
+      *lineptr = realloc(*lineptr, *n);
+    }
+    (*lineptr)[s] = c;
+    s++;
+  }
+  (*lineptr)[s] = '\0';
+  return s;
+}
diff --git a/userland/libc/stdio/getline.c b/userland/libc/stdio/getline.c
new file mode 100644
index 0000000..5e9671e
--- /dev/null
+++ b/userland/libc/stdio/getline.c
@@ -0,0 +1,5 @@
+#include <stdio.h>
+
+size_t getline(char **lineptr, size_t *n, FILE *stream) {
+  return getdelim(lineptr, n, '\n', stream);
+}