7 files changed, 33 insertions, 0 deletions
diff --git a/src/libc/include/ctype.h b/src/libc/include/ctype.h
index 1ebb111..f33b645 100644
--- a/src/libc/include/ctype.h
+++ b/src/libc/include/ctype.h
@@ -2,6 +2,7 @@
 
 int isalnum(int c);
 int isalpha(int c);
+int isblank(int c);
 int iscntrl(int c);
 int isdigit(int c);
 int isgraph(int c);
diff --git a/src/libc/include/inttypes.h b/src/libc/include/inttypes.h
index d44129a..2890655 100644
--- a/src/libc/include/inttypes.h
+++ b/src/libc/include/inttypes.h
@@ -1,6 +1,7 @@
 #include <stdint.h>
 
 #define PRId64 "ld"
+#define PRIi64 "li"
 #define PRIo64 "lo"
 #define PRIu64 "lu"
 #define PRIx64 "lx"
@@ -9,11 +10,13 @@
 #define PRId32 "d"
 #define PRIo32 "o"
 #define PRIu32 "u"
+#define PRIuLEAST32 "u"
 #define PRIx32 "x"
 #define SCNu32 "u"
 
 #define PRId16 "d"
 #define PRIo16 "o"
 #define PRIu16 "u"
+#define PRIuLEAST16 "u"
 #define PRIx16 "x"
 #define SCNu16 "u"
diff --git a/src/libc/include/spawn.h b/src/libc/include/spawn.h
new file mode 100644
index 0000000..936518a
--- /dev/null
+++ b/src/libc/include/spawn.h
@@ -0,0 +1,21 @@
+#pragma once
+#include <sys/types.h>
+
+typedef struct {
+	struct file_action *f;
+} posix_spawn_file_actions_t;
+
+typedef struct {} posix_spawnattr_t;
+
+int posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t *facts, int from, int to);
+int posix_spawn_file_actions_destroy(posix_spawn_file_actions_t *facts);
+int posix_spawn_file_actions_init(posix_spawn_file_actions_t *facts);
+
+int posix_spawnp(
+	pid_t *restrict pid,
+	const char *restrict file,
+	const posix_spawn_file_actions_t *restrict file_actions,
+	const posix_spawnattr_t *restrict attrp,
+	char *const argv[restrict],
+	char *const envp[restrict]
+);
diff --git a/src/libc/include/stdio.h b/src/libc/include/stdio.h
index c579df5..b582e8f 100644
--- a/src/libc/include/stdio.h
+++ b/src/libc/include/stdio.h
@@ -1,4 +1,5 @@
 #pragma once
+
 #include <bits/file.h>
 #include <stdarg.h>
 #include <stddef.h>
@@ -27,6 +28,7 @@ int printf(const char *restrict fmt, ...);
 int fprintf(FILE *restrict f, const char *restrict fmt, ...);
 
 int sprintf(char *restrict s, const char *restrict fmt, ...);
+int snprintf(char *restrict str, size_t len, const char *restrict fmt, ...);
 
 int vprintf(const char *restrict fmt, va_list ap);
 int vsprintf(char *restrict s, const char *restrict fmt, va_list ap);
@@ -86,4 +88,6 @@ char *tmpnam(char *s);
 
 int sscanf(const char *restrict s, const char *restrict format, ...);
 int vsscanf(const char* str, const char* format, va_list ap);
+int fscanf(FILE* fp, const char* format, ...);
+int vfscanf(FILE* fp, const char* format, va_list ap);
 int vcbscanf(void* fp, int (*fgetc)(void*), int (*ungetc)(int, void*), const char* restrict format, va_list ap);
diff --git a/src/libc/include/string.h b/src/libc/include/string.h
index 8b04b39..0bf4082 100644
--- a/src/libc/include/string.h
+++ b/src/libc/include/string.h
@@ -27,3 +27,4 @@ char *strdup(const char *s);
 size_t strnlen(const char *s, size_t len);
 
 char *strerror(int errnum);
+char *strsignal(int sig);
diff --git a/src/libc/include/sys/wait.h b/src/libc/include/sys/wait.h
index 5f0d2cc..cc8b9a8 100644
--- a/src/libc/include/sys/wait.h
+++ b/src/libc/include/sys/wait.h
@@ -4,6 +4,7 @@
 #define WIFSTOPPED(x) 0
 #define WEXITSTATUS(x) ((x)&0xFF)
 #define WIFEXITED(x) 1
+#define WIFSIGNALED(x) 0
 #define WSTOPSIG(x) 0
 #define WTERMSIG(x) 0
 
@@ -12,3 +13,4 @@
 
 pid_t wait(int *wstatus);
 pid_t wait3(int *wstatus, int opts, struct rusage *rusage);
+pid_t waitpid(pid_t pid, int *wstatus, int opts);
diff --git a/src/libc/include/unistd.h b/src/libc/include/unistd.h
index ac5afc0..750d6e2 100644
--- a/src/libc/include/unistd.h
+++ b/src/libc/include/unistd.h
@@ -22,6 +22,7 @@ int isatty(int fd);
 
 int execv(const char *path, char *const argv[]);
 int execvp(const char *path, char *const argv[]);
+int execvpe(const char *path, char *const argv[], char *const envp[]);
 int execve(const char *path, char *const argv[], char *const envp[]);
 
 int chdir(const char *path);