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-rw-r--r--git-compat-util.h1
-rw-r--r--help.c43
-rw-r--r--run-command.c457
-rw-r--r--run-command.h1
-rw-r--r--string-list.c18
-rw-r--r--string-list.h7
-rwxr-xr-xt/t0061-run-command.sh41
-rwxr-xr-xt/t5550-http-fetch-dumb.sh5
-rw-r--r--usage.c10
9 files changed, 449 insertions, 134 deletions
diff --git a/git-compat-util.h b/git-compat-util.h
index 98670a3..4b7dcf2 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -450,7 +450,6 @@ extern void (*get_error_routine(void))(const char *err, va_list params);
extern void set_warn_routine(void (*routine)(const char *warn, va_list params));
extern void (*get_warn_routine(void))(const char *warn, va_list params);
extern void set_die_is_recursing_routine(int (*routine)(void));
-extern void set_error_handle(FILE *);
extern int starts_with(const char *str, const char *prefix);
diff --git a/help.c b/help.c
index a07f01e..db7f3d7 100644
--- a/help.c
+++ b/help.c
@@ -1,6 +1,7 @@
#include "cache.h"
#include "builtin.h"
#include "exec_cmd.h"
+#include "run-command.h"
#include "levenshtein.h"
#include "help.h"
#include "common-cmds.h"
@@ -96,48 +97,6 @@ static void pretty_print_cmdnames(struct cmdnames *cmds, unsigned int colopts)
string_list_clear(&list, 0);
}
-static int is_executable(const char *name)
-{
- struct stat st;
-
- if (stat(name, &st) || /* stat, not lstat */
- !S_ISREG(st.st_mode))
- return 0;
-
-#if defined(GIT_WINDOWS_NATIVE)
- /*
- * On Windows there is no executable bit. The file extension
- * indicates whether it can be run as an executable, and Git
- * has special-handling to detect scripts and launch them
- * through the indicated script interpreter. We test for the
- * file extension first because virus scanners may make
- * it quite expensive to open many files.
- */
- if (ends_with(name, ".exe"))
- return S_IXUSR;
-
-{
- /*
- * Now that we know it does not have an executable extension,
- * peek into the file instead.
- */
- char buf[3] = { 0 };
- int n;
- int fd = open(name, O_RDONLY);
- st.st_mode &= ~S_IXUSR;
- if (fd >= 0) {
- n = read(fd, buf, 2);
- if (n == 2)
- /* look for a she-bang */
- if (!strcmp(buf, "#!"))
- st.st_mode |= S_IXUSR;
- close(fd);
- }
-}
-#endif
- return st.st_mode & S_IXUSR;
-}
-
static void list_commands_in_dir(struct cmdnames *cmds,
const char *path,
const char *prefix)
diff --git a/run-command.c b/run-command.c
index 574b81d..9e36151 100644
--- a/run-command.c
+++ b/run-command.c
@@ -117,18 +117,65 @@ static inline void close_pair(int fd[2])
close(fd[1]);
}
-#ifndef GIT_WINDOWS_NATIVE
-static inline void dup_devnull(int to)
+int is_executable(const char *name)
{
- int fd = open("/dev/null", O_RDWR);
- if (fd < 0)
- die_errno(_("open /dev/null failed"));
- if (dup2(fd, to) < 0)
- die_errno(_("dup2(%d,%d) failed"), fd, to);
- close(fd);
+ struct stat st;
+
+ if (stat(name, &st) || /* stat, not lstat */
+ !S_ISREG(st.st_mode))
+ return 0;
+
+#if defined(GIT_WINDOWS_NATIVE)
+ /*
+ * On Windows there is no executable bit. The file extension
+ * indicates whether it can be run as an executable, and Git
+ * has special-handling to detect scripts and launch them
+ * through the indicated script interpreter. We test for the
+ * file extension first because virus scanners may make
+ * it quite expensive to open many files.
+ */
+ if (ends_with(name, ".exe"))
+ return S_IXUSR;
+
+{
+ /*
+ * Now that we know it does not have an executable extension,
+ * peek into the file instead.
+ */
+ char buf[3] = { 0 };
+ int n;
+ int fd = open(name, O_RDONLY);
+ st.st_mode &= ~S_IXUSR;
+ if (fd >= 0) {
+ n = read(fd, buf, 2);
+ if (n == 2)
+ /* look for a she-bang */
+ if (!strcmp(buf, "#!"))
+ st.st_mode |= S_IXUSR;
+ close(fd);
+ }
}
#endif
+ return st.st_mode & S_IXUSR;
+}
+/*
+ * Search $PATH for a command. This emulates the path search that
+ * execvp would perform, without actually executing the command so it
+ * can be used before fork() to prepare to run a command using
+ * execve() or after execvp() to diagnose why it failed.
+ *
+ * The caller should ensure that file contains no directory
+ * separators.
+ *
+ * Returns the path to the command, as found in $PATH or NULL if the
+ * command could not be found. The caller inherits ownership of the memory
+ * used to store the resultant path.
+ *
+ * This should not be used on Windows, where the $PATH search rules
+ * are more complicated (e.g., a search for "foo" should find
+ * "foo.exe").
+ */
static char *locate_in_PATH(const char *file)
{
const char *p = getenv("PATH");
@@ -149,7 +196,7 @@ static char *locate_in_PATH(const char *file)
}
strbuf_addstr(&buf, file);
- if (!access(buf.buf, F_OK))
+ if (is_executable(buf.buf))
return strbuf_detach(&buf, NULL);
if (!*end)
@@ -221,31 +268,248 @@ static const char **prepare_shell_cmd(struct argv_array *out, const char **argv)
}
#ifndef GIT_WINDOWS_NATIVE
-static int execv_shell_cmd(const char **argv)
+static int child_notifier = -1;
+
+enum child_errcode {
+ CHILD_ERR_CHDIR,
+ CHILD_ERR_DUP2,
+ CHILD_ERR_CLOSE,
+ CHILD_ERR_SIGPROCMASK,
+ CHILD_ERR_ENOENT,
+ CHILD_ERR_SILENT,
+ CHILD_ERR_ERRNO
+};
+
+struct child_err {
+ enum child_errcode err;
+ int syserr; /* errno */
+};
+
+static void child_die(enum child_errcode err)
{
- struct argv_array nargv = ARGV_ARRAY_INIT;
- prepare_shell_cmd(&nargv, argv);
- trace_argv_printf(nargv.argv, "trace: exec:");
- sane_execvp(nargv.argv[0], (char **)nargv.argv);
- argv_array_clear(&nargv);
- return -1;
+ struct child_err buf;
+
+ buf.err = err;
+ buf.syserr = errno;
+
+ /* write(2) on buf smaller than PIPE_BUF (min 512) is atomic: */
+ xwrite(child_notifier, &buf, sizeof(buf));
+ _exit(1);
}
-#endif
-#ifndef GIT_WINDOWS_NATIVE
-static int child_notifier = -1;
+static void child_dup2(int fd, int to)
+{
+ if (dup2(fd, to) < 0)
+ child_die(CHILD_ERR_DUP2);
+}
-static void notify_parent(void)
+static void child_close(int fd)
{
+ if (close(fd))
+ child_die(CHILD_ERR_CLOSE);
+}
+
+static void child_close_pair(int fd[2])
+{
+ child_close(fd[0]);
+ child_close(fd[1]);
+}
+
+/*
+ * parent will make it look like the child spewed a fatal error and died
+ * this is needed to prevent changes to t0061.
+ */
+static void fake_fatal(const char *err, va_list params)
+{
+ vreportf("fatal: ", err, params);
+}
+
+static void child_error_fn(const char *err, va_list params)
+{
+ const char msg[] = "error() should not be called in child\n";
+ xwrite(2, msg, sizeof(msg) - 1);
+}
+
+static void child_warn_fn(const char *err, va_list params)
+{
+ const char msg[] = "warn() should not be called in child\n";
+ xwrite(2, msg, sizeof(msg) - 1);
+}
+
+static void NORETURN child_die_fn(const char *err, va_list params)
+{
+ const char msg[] = "die() should not be called in child\n";
+ xwrite(2, msg, sizeof(msg) - 1);
+ _exit(2);
+}
+
+/* this runs in the parent process */
+static void child_err_spew(struct child_process *cmd, struct child_err *cerr)
+{
+ static void (*old_errfn)(const char *err, va_list params);
+
+ old_errfn = get_error_routine();
+ set_error_routine(fake_fatal);
+ errno = cerr->syserr;
+
+ switch (cerr->err) {
+ case CHILD_ERR_CHDIR:
+ error_errno("exec '%s': cd to '%s' failed",
+ cmd->argv[0], cmd->dir);
+ break;
+ case CHILD_ERR_DUP2:
+ error_errno("dup2() in child failed");
+ break;
+ case CHILD_ERR_CLOSE:
+ error_errno("close() in child failed");
+ break;
+ case CHILD_ERR_SIGPROCMASK:
+ error_errno("sigprocmask failed restoring signals");
+ break;
+ case CHILD_ERR_ENOENT:
+ error_errno("cannot run %s", cmd->argv[0]);
+ break;
+ case CHILD_ERR_SILENT:
+ break;
+ case CHILD_ERR_ERRNO:
+ error_errno("cannot exec '%s'", cmd->argv[0]);
+ break;
+ }
+ set_error_routine(old_errfn);
+}
+
+static void prepare_cmd(struct argv_array *out, const struct child_process *cmd)
+{
+ if (!cmd->argv[0])
+ die("BUG: command is empty");
+
+ /*
+ * Add SHELL_PATH so in the event exec fails with ENOEXEC we can
+ * attempt to interpret the command with 'sh'.
+ */
+ argv_array_push(out, SHELL_PATH);
+
+ if (cmd->git_cmd) {
+ argv_array_push(out, "git");
+ argv_array_pushv(out, cmd->argv);
+ } else if (cmd->use_shell) {
+ prepare_shell_cmd(out, cmd->argv);
+ } else {
+ argv_array_pushv(out, cmd->argv);
+ }
+
/*
- * execvp failed. If possible, we'd like to let start_command
- * know, so failures like ENOENT can be handled right away; but
- * otherwise, finish_command will still report the error.
+ * If there are no '/' characters in the command then perform a path
+ * lookup and use the resolved path as the command to exec. If there
+ * are no '/' characters or if the command wasn't found in the path,
+ * have exec attempt to invoke the command directly.
*/
- xwrite(child_notifier, "", 1);
+ if (!strchr(out->argv[1], '/')) {
+ char *program = locate_in_PATH(out->argv[1]);
+ if (program) {
+ free((char *)out->argv[1]);
+ out->argv[1] = program;
+ }
+ }
+}
+
+static char **prep_childenv(const char *const *deltaenv)
+{
+ extern char **environ;
+ char **childenv;
+ struct string_list env = STRING_LIST_INIT_DUP;
+ struct strbuf key = STRBUF_INIT;
+ const char *const *p;
+ int i;
+
+ /* Construct a sorted string list consisting of the current environ */
+ for (p = (const char *const *) environ; p && *p; p++) {
+ const char *equals = strchr(*p, '=');
+
+ if (equals) {
+ strbuf_reset(&key);
+ strbuf_add(&key, *p, equals - *p);
+ string_list_append(&env, key.buf)->util = (void *) *p;
+ } else {
+ string_list_append(&env, *p)->util = (void *) *p;
+ }
+ }
+ string_list_sort(&env);
+
+ /* Merge in 'deltaenv' with the current environ */
+ for (p = deltaenv; p && *p; p++) {
+ const char *equals = strchr(*p, '=');
+
+ if (equals) {
+ /* ('key=value'), insert or replace entry */
+ strbuf_reset(&key);
+ strbuf_add(&key, *p, equals - *p);
+ string_list_insert(&env, key.buf)->util = (void *) *p;
+ } else {
+ /* otherwise ('key') remove existing entry */
+ string_list_remove(&env, *p, 0);
+ }
+ }
+
+ /* Create an array of 'char *' to be used as the childenv */
+ childenv = xmalloc((env.nr + 1) * sizeof(char *));
+ for (i = 0; i < env.nr; i++)
+ childenv[i] = env.items[i].util;
+ childenv[env.nr] = NULL;
+
+ string_list_clear(&env, 0);
+ strbuf_release(&key);
+ return childenv;
+}
+
+struct atfork_state {
+#ifndef NO_PTHREADS
+ int cs;
+#endif
+ sigset_t old;
+};
+
+#ifndef NO_PTHREADS
+static void bug_die(int err, const char *msg)
+{
+ if (err) {
+ errno = err;
+ die_errno("BUG: %s", msg);
+ }
}
#endif
+static void atfork_prepare(struct atfork_state *as)
+{
+ sigset_t all;
+
+ if (sigfillset(&all))
+ die_errno("sigfillset");
+#ifdef NO_PTHREADS
+ if (sigprocmask(SIG_SETMASK, &all, &as->old))
+ die_errno("sigprocmask");
+#else
+ bug_die(pthread_sigmask(SIG_SETMASK, &all, &as->old),
+ "blocking all signals");
+ bug_die(pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &as->cs),
+ "disabling cancellation");
+#endif
+}
+
+static void atfork_parent(struct atfork_state *as)
+{
+#ifdef NO_PTHREADS
+ if (sigprocmask(SIG_SETMASK, &as->old, NULL))
+ die_errno("sigprocmask");
+#else
+ bug_die(pthread_setcancelstate(as->cs, NULL),
+ "re-enabling cancellation");
+ bug_die(pthread_sigmask(SIG_SETMASK, &as->old, NULL),
+ "restoring signal mask");
+#endif
+}
+#endif /* GIT_WINDOWS_NATIVE */
+
static inline void set_cloexec(int fd)
{
int flags = fcntl(fd, F_GETFD);
@@ -281,13 +545,6 @@ static int wait_or_whine(pid_t pid, const char *argv0, int in_signal)
code += 128;
} else if (WIFEXITED(status)) {
code = WEXITSTATUS(status);
- /*
- * Convert special exit code when execvp failed.
- */
- if (code == 127) {
- code = -1;
- failed_errno = ENOENT;
- }
} else {
error("waitpid is confused (%s)", argv0);
}
@@ -372,109 +629,149 @@ fail_pipe:
#ifndef GIT_WINDOWS_NATIVE
{
int notify_pipe[2];
+ int null_fd = -1;
+ char **childenv;
+ struct argv_array argv = ARGV_ARRAY_INIT;
+ struct child_err cerr;
+ struct atfork_state as;
+
if (pipe(notify_pipe))
notify_pipe[0] = notify_pipe[1] = -1;
+ if (cmd->no_stdin || cmd->no_stdout || cmd->no_stderr) {
+ null_fd = open("/dev/null", O_RDWR | O_CLOEXEC);
+ if (null_fd < 0)
+ die_errno(_("open /dev/null failed"));
+ set_cloexec(null_fd);
+ }
+
+ prepare_cmd(&argv, cmd);
+ childenv = prep_childenv(cmd->env);
+ atfork_prepare(&as);
+
+ /*
+ * NOTE: In order to prevent deadlocking when using threads special
+ * care should be taken with the function calls made in between the
+ * fork() and exec() calls. No calls should be made to functions which
+ * require acquiring a lock (e.g. malloc) as the lock could have been
+ * held by another thread at the time of forking, causing the lock to
+ * never be released in the child process. This means only
+ * Async-Signal-Safe functions are permitted in the child.
+ */
cmd->pid = fork();
failed_errno = errno;
if (!cmd->pid) {
+ int sig;
/*
- * Redirect the channel to write syscall error messages to
- * before redirecting the process's stderr so that all die()
- * in subsequent call paths use the parent's stderr.
+ * Ensure the default die/error/warn routines do not get
+ * called, they can take stdio locks and malloc.
*/
- if (cmd->no_stderr || need_err) {
- int child_err = dup(2);
- set_cloexec(child_err);
- set_error_handle(fdopen(child_err, "w"));
- }
+ set_die_routine(child_die_fn);
+ set_error_routine(child_error_fn);
+ set_warn_routine(child_warn_fn);
close(notify_pipe[0]);
set_cloexec(notify_pipe[1]);
child_notifier = notify_pipe[1];
- atexit(notify_parent);
if (cmd->no_stdin)
- dup_devnull(0);
+ child_dup2(null_fd, 0);
else if (need_in) {
- dup2(fdin[0], 0);
- close_pair(fdin);
+ child_dup2(fdin[0], 0);
+ child_close_pair(fdin);
} else if (cmd->in) {
- dup2(cmd->in, 0);
- close(cmd->in);
+ child_dup2(cmd->in, 0);
+ child_close(cmd->in);
}
if (cmd->no_stderr)
- dup_devnull(2);
+ child_dup2(null_fd, 2);
else if (need_err) {
- dup2(fderr[1], 2);
- close_pair(fderr);
+ child_dup2(fderr[1], 2);
+ child_close_pair(fderr);
} else if (cmd->err > 1) {
- dup2(cmd->err, 2);
- close(cmd->err);
+ child_dup2(cmd->err, 2);
+ child_close(cmd->err);
}
if (cmd->no_stdout)
- dup_devnull(1);
+ child_dup2(null_fd, 1);
else if (cmd->stdout_to_stderr)
- dup2(2, 1);
+ child_dup2(2, 1);
else if (need_out) {
- dup2(fdout[1], 1);
- close_pair(fdout);
+ child_dup2(fdout[1], 1);
+ child_close_pair(fdout);
} else if (cmd->out > 1) {
- dup2(cmd->out, 1);
- close(cmd->out);
+ child_dup2(cmd->out, 1);
+ child_close(cmd->out);
}
if (cmd->dir && chdir(cmd->dir))
- die_errno("exec '%s': cd to '%s' failed", cmd->argv[0],
- cmd->dir);
- if (cmd->env) {
- for (; *cmd->env; cmd->env++) {
- if (strchr(*cmd->env, '='))
- putenv((char *)*cmd->env);
- else
- unsetenv(*cmd->env);
- }
+ child_die(CHILD_ERR_CHDIR);
+
+ /*
+ * restore default signal handlers here, in case
+ * we catch a signal right before execve below
+ */
+ for (sig = 1; sig < NSIG; sig++) {
+ /* ignored signals get reset to SIG_DFL on execve */
+ if (signal(sig, SIG_DFL) == SIG_IGN)
+ signal(sig, SIG_IGN);
}
- if (cmd->git_cmd)
- execv_git_cmd(cmd->argv);
- else if (cmd->use_shell)
- execv_shell_cmd(cmd->argv);
- else
- sane_execvp(cmd->argv[0], (char *const*) cmd->argv);
+
+ if (sigprocmask(SIG_SETMASK, &as.old, NULL) != 0)
+ child_die(CHILD_ERR_SIGPROCMASK);
+
+ /*
+ * Attempt to exec using the command and arguments starting at
+ * argv.argv[1]. argv.argv[0] contains SHELL_PATH which will
+ * be used in the event exec failed with ENOEXEC at which point
+ * we will try to interpret the command using 'sh'.
+ */
+ execve(argv.argv[1], (char *const *) argv.argv + 1,
+ (char *const *) childenv);
+ if (errno == ENOEXEC)
+ execve(argv.argv[0], (char *const *) argv.argv,
+ (char *const *) childenv);
+
if (errno == ENOENT) {
- if (!cmd->silent_exec_failure)
- error("cannot run %s: %s", cmd->argv[0],
- strerror(ENOENT));
- exit(127);
+ if (cmd->silent_exec_failure)
+ child_die(CHILD_ERR_SILENT);
+ child_die(CHILD_ERR_ENOENT);
} else {
- die_errno("cannot exec '%s'", cmd->argv[0]);
+ child_die(CHILD_ERR_ERRNO);
}
}
+ atfork_parent(&as);
if (cmd->pid < 0)
error_errno("cannot fork() for %s", cmd->argv[0]);
else if (cmd->clean_on_exit)
mark_child_for_cleanup(cmd->pid, cmd);
/*
- * Wait for child's execvp. If the execvp succeeds (or if fork()
+ * Wait for child's exec. If the exec succeeds (or if fork()
* failed), EOF is seen immediately by the parent. Otherwise, the
- * child process sends a single byte.
+ * child process sends a child_err struct.
* Note that use of this infrastructure is completely advisory,
* therefore, we keep error checks minimal.
*/
close(notify_pipe[1]);
- if (read(notify_pipe[0], &notify_pipe[1], 1) == 1) {
+ if (xread(notify_pipe[0], &cerr, sizeof(cerr)) == sizeof(cerr)) {
/*
- * At this point we know that fork() succeeded, but execvp()
+ * At this point we know that fork() succeeded, but exec()
* failed. Errors have been reported to our stderr.
*/
wait_or_whine(cmd->pid, cmd->argv[0], 0);
+ child_err_spew(cmd, &cerr);
failed_errno = errno;
cmd->pid = -1;
}
close(notify_pipe[0]);
+
+ if (null_fd >= 0)
+ close(null_fd);
+ argv_array_clear(&argv);
+ free(childenv);
}
#else
{
diff --git a/run-command.h b/run-command.h
index 4fa8f65..3932420 100644
--- a/run-command.h
+++ b/run-command.h
@@ -51,6 +51,7 @@ struct child_process {
#define CHILD_PROCESS_INIT { NULL, ARGV_ARRAY_INIT, ARGV_ARRAY_INIT }
void child_process_init(struct child_process *);
void child_process_clear(struct child_process *);
+extern int is_executable(const char *name);
int start_command(struct child_process *);
int finish_command(struct child_process *);
diff --git a/string-list.c b/string-list.c
index 003ca18..c650500 100644
--- a/string-list.c
+++ b/string-list.c
@@ -64,6 +64,24 @@ struct string_list_item *string_list_insert(struct string_list *list, const char
return list->items + index;
}
+void string_list_remove(struct string_list *list, const char *string,
+ int free_util)
+{
+ int exact_match;
+ int i = get_entry_index(list, string, &exact_match);
+
+ if (exact_match) {
+ if (list->strdup_strings)
+ free(list->items[i].string);
+ if (free_util)
+ free(list->items[i].util);
+
+ list->nr--;
+ memmove(list->items + i, list->items + i + 1,
+ (list->nr - i) * sizeof(struct string_list_item));
+ }
+}
+
int string_list_has_string(const struct string_list *list, const char *string)
{
int exact_match;
diff --git a/string-list.h b/string-list.h
index d3809a1..29bfb7a 100644
--- a/string-list.h
+++ b/string-list.h
@@ -63,6 +63,13 @@ int string_list_find_insert_index(const struct string_list *list, const char *st
struct string_list_item *string_list_insert(struct string_list *list, const char *string);
/*
+ * Removes the given string from the sorted list.
+ * If the string doesn't exist, the list is not altered.
+ */
+extern void string_list_remove(struct string_list *list, const char *string,
+ int free_util);
+
+/*
* Checks if the given string is part of a sorted list. If it is part of the list,
* return the coresponding string_list_item, NULL otherwise.
*/
diff --git a/t/t0061-run-command.sh b/t/t0061-run-command.sh
index 12228b4..e473917 100755
--- a/t/t0061-run-command.sh
+++ b/t/t0061-run-command.sh
@@ -26,6 +26,47 @@ test_expect_success 'run_command can run a command' '
test_cmp empty err
'
+test_expect_success !MINGW 'run_command can run a script without a #! line' '
+ cat >hello <<-\EOF &&
+ cat hello-script
+ EOF
+ chmod +x hello &&
+ test-run-command run-command ./hello >actual 2>err &&
+
+ test_cmp hello-script actual &&
+ test_cmp empty err
+'
+
+test_expect_success 'run_command does not try to execute a directory' '
+ test_when_finished "rm -rf bin1 bin2" &&
+ mkdir -p bin1/greet bin2 &&
+ write_script bin2/greet <<-\EOF &&
+ cat bin2/greet
+ EOF
+
+ PATH=$PWD/bin1:$PWD/bin2:$PATH \
+ test-run-command run-command greet >actual 2>err &&
+ test_cmp bin2/greet actual &&
+ test_cmp empty err
+'
+
+test_expect_success POSIXPERM 'run_command passes over non-executable file' '
+ test_when_finished "rm -rf bin1 bin2" &&
+ mkdir -p bin1 bin2 &&
+ write_script bin1/greet <<-\EOF &&
+ cat bin1/greet
+ EOF
+ chmod -x bin1/greet &&
+ write_script bin2/greet <<-\EOF &&
+ cat bin2/greet
+ EOF
+
+ PATH=$PWD/bin1:$PWD/bin2:$PATH \
+ test-run-command run-command greet >actual 2>err &&
+ test_cmp bin2/greet actual &&
+ test_cmp empty err
+'
+
test_expect_success POSIXPERM 'run_command reports EACCES' '
cat hello-script >hello.sh &&
chmod -x hello.sh &&
diff --git a/t/t5550-http-fetch-dumb.sh b/t/t5550-http-fetch-dumb.sh
index 87308cd..8552184 100755
--- a/t/t5550-http-fetch-dumb.sh
+++ b/t/t5550-http-fetch-dumb.sh
@@ -20,8 +20,9 @@ test_expect_success 'create http-accessible bare repository with loose objects'
(cd "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
git config core.bare true &&
mkdir -p hooks &&
- echo "exec git update-server-info" >hooks/post-update &&
- chmod +x hooks/post-update &&
+ write_script "hooks/post-update" <<-\EOF &&
+ exec git update-server-info
+ EOF
hooks/post-update
) &&
git remote add public "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
diff --git a/usage.c b/usage.c
index 1f63e03..2f87ca6 100644
--- a/usage.c
+++ b/usage.c
@@ -6,12 +6,9 @@
#include "git-compat-util.h"
#include "cache.h"
-static FILE *error_handle;
-
void vreportf(const char *prefix, const char *err, va_list params)
{
char msg[4096];
- FILE *fh = error_handle ? error_handle : stderr;
char *p;
vsnprintf(msg, sizeof(msg), err, params);
@@ -19,7 +16,7 @@ void vreportf(const char *prefix, const char *err, va_list params)
if (iscntrl(*p) && *p != '\t' && *p != '\n')
*p = '?';
}
- fprintf(fh, "%s%s\n", prefix, msg);
+ fprintf(stderr, "%s%s\n", prefix, msg);
}
static NORETURN void usage_builtin(const char *err, va_list params)
@@ -88,11 +85,6 @@ void set_die_is_recursing_routine(int (*routine)(void))
die_is_recursing = routine;
}
-void set_error_handle(FILE *fh)
-{
- error_handle = fh;
-}
-
void NORETURN usagef(const char *err, ...)
{
va_list params;