diff options
Diffstat (limited to 'newlib/libc/sys/linux/stdlib/wordexp.c')
| -rw-r--r-- | newlib/libc/sys/linux/stdlib/wordexp.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/newlib/libc/sys/linux/stdlib/wordexp.c b/newlib/libc/sys/linux/stdlib/wordexp.c deleted file mode 100644 index 3928b857e..000000000 --- a/newlib/libc/sys/linux/stdlib/wordexp.c +++ /dev/null @@ -1,186 +0,0 @@ -/* Copyright (C) 2002 by Red Hat, Incorporated. All rights reserved. - * - * Permission to use, copy, modify, and distribute this software - * is freely granted, provided that this notice is preserved. - */ - -#include <sys/param.h> -#include <sys/stat.h> - -#include <ctype.h> -#include <dirent.h> -#include <errno.h> -#include <glob.h> -#include <pwd.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <sys/wait.h> - -#include <wordexp.h> - -#define MAXLINELEN 500 - -/* Note: This implementation of wordexp requires a version of bash - that supports the --wordexp and --protected arguments to be present - on the system. It does not support the WRDE_UNDEF flag. */ -int -wordexp(const char *words, wordexp_t *pwordexp, int flags) -{ - FILE *f; - FILE *f_err; - char tmp[MAXLINELEN]; - int i = 0; - int offs = 0; - char *iter; - pid_t pid; - int num_words = 0; - int num_bytes = 0; - int fd[2]; - int fd_err[2]; - int err = 0; - - if (pwordexp == NULL) - { - return WRDE_NOSPACE; - } - - if (flags & WRDE_REUSE) - wordfree(pwordexp); - - if ((flags & WRDE_APPEND) == 0) - { - pwordexp->we_wordc = 0; - pwordexp->we_wordv = NULL; - } - - if (flags & WRDE_DOOFFS) - { - offs = pwordexp->we_offs; - - if(!(pwordexp->we_wordv = (char **)realloc(pwordexp->we_wordv, (pwordexp->we_wordc + offs + 1) * sizeof(char *)))) - return WRDE_NOSPACE; - - for (i = 0; i < offs; i++) - pwordexp->we_wordv[i] = NULL; - } - - pipe(fd); - pipe(fd_err); - pid = fork(); - - if (pid > 0) - { - /* In parent process. */ - - /* Close write end of parent's pipe. */ - close(fd[1]); - close(fd_err[1]); - - /* f_err is the standard error from the shell command. */ - f_err = fdopen(fd_err[0], "r"); - - /* Check for errors. */ - if (fgets(tmp, MAXLINELEN, f_err)) - { - if (strstr(tmp, "EOF")) - err = WRDE_SYNTAX; - else if (strstr(tmp, "`\n'") || strstr(tmp, "`|'") - || strstr(tmp, "`&'") || strstr(tmp, "`;'") - || strstr(tmp, "`<'") || strstr(tmp, "`>'") - || strstr(tmp, "`('") || strstr(tmp, "`)'") - || strstr(tmp, "`{'") || strstr(tmp, "`}'")) - err = WRDE_BADCHAR; - else if (strstr(tmp, "command substitution")) - err = WRDE_CMDSUB; - else - err = WRDE_SYNTAX; - - if (flags & WRDE_SHOWERR) - { - fprintf(stderr, tmp); - while(fgets(tmp, MAXLINELEN, f_err)) - fprintf(stderr, tmp); - } - - return err; - } - - /* f is the standard output from the shell command. */ - f = fdopen(fd[0], "r"); - - /* Get number of words expanded by shell. */ - fgets(tmp, MAXLINELEN, f); - - if((iter = strchr(tmp, '\n'))) - *iter = '\0'; - - num_words = atoi(tmp); - - if(!(pwordexp->we_wordv = (char **)realloc(pwordexp->we_wordv, - (pwordexp->we_wordc + num_words + offs + 1) * sizeof(char *)))) - return WRDE_NOSPACE; - - /* Get number of bytes required for storage of num_words words. */ - fgets(tmp, MAXLINELEN, f); - - if((iter = strchr(tmp, '\n'))) - *iter = '\0'; - - num_bytes = atoi(tmp) + pwordexp->we_wordc; - - /* Get each expansion from the shell output, and store each in - pwordexp's we_wordv vector. */ - for(i = 0; i < num_words; i++) - { - fgets(tmp, MAXLINELEN, f); - - if((iter = strchr(tmp, '\n'))) - *iter = '\0'; - - pwordexp->we_wordv[pwordexp->we_wordc + offs + i] = strdup(tmp); - } - - pwordexp->we_wordv[pwordexp->we_wordc + offs + i] = NULL; - pwordexp->we_wordc += num_words; - - close(fd[0]); - close(fd_err[0]); - - /* Wait for child to finish. */ - waitpid (pid, NULL, 0); - - return WRDE_SUCCESS; - } - else - { - /* In child process. */ - - /* Close read end of child's pipe. */ - close(fd[0]); - close(fd_err[0]); - - /* Pipe standard output to parent process via fd. */ - if (fd[1] != STDOUT_FILENO) - { - dup2(fd[1], STDOUT_FILENO); - /* fd[1] no longer required. */ - close(fd[1]); - } - - /* Pipe standard error to parent process via fd_err. */ - if (fd_err[1] != STDERR_FILENO) - { - dup2(fd_err[1], STDERR_FILENO); - /* fd_err[1] no longer required. */ - close(fd_err[1]); - } - - if (flags & WRDE_NOCMD) - execl("/bin/bash", "bash", "--protected", "--wordexp", words, (char *)0); - else - execl("/bin/bash", "bash", "--wordexp", words, (char *)0); - } - return WRDE_SUCCESS; -} |