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authorDenys Vlasenko <dvlasenk@redhat.com>2010-08-26 16:03:15 +0200
committerDenys Vlasenko <dvlasenk@redhat.com>2010-08-26 16:03:15 +0200
commit5a4dc02ee0297c6b0f0fa690b8fc5d2d40e2c6d6 (patch)
tree2cff321dde93a36a357886fd75e820c8a122dacb /lib/utils/spawn.cpp
parent0b5f2179ae0998ea370cef0328f1cabd2338d249 (diff)
downloadabrt-5a4dc02ee0297c6b0f0fa690b8fc5d2d40e2c6d6.tar.gz
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spawn.cpp -> spawn.c
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Diffstat (limited to 'lib/utils/spawn.cpp')
-rw-r--r--lib/utils/spawn.cpp142
1 files changed, 0 insertions, 142 deletions
diff --git a/lib/utils/spawn.cpp b/lib/utils/spawn.cpp
deleted file mode 100644
index dace7d4b..00000000
--- a/lib/utils/spawn.cpp
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * Utility routines.
- *
- * Licensed under GPLv2, see file COPYING in this tarball for details.
- */
-#include "abrtlib.h"
-
-using namespace std;
-
-static string concat_str_vector(char **strings)
-{
- string result;
- while (*strings) {
- result += *strings++;
- if (*strings)
- result += ' ';
- }
- return result;
-}
-
-/* Returns pid */
-pid_t fork_execv_on_steroids(int flags,
- char **argv,
- int *pipefds,
- char **unsetenv_vec,
- const char *dir,
- uid_t uid)
-{
- pid_t child;
- /* Reminder: [0] is read end, [1] is write end */
- int pipe_to_child[2];
- int pipe_fm_child[2];
-
- /* Sanitize flags */
- if (!pipefds)
- flags &= ~(EXECFLG_INPUT | EXECFLG_OUTPUT);
-
- if (flags & EXECFLG_INPUT)
- xpipe(pipe_to_child);
- if (flags & EXECFLG_OUTPUT)
- xpipe(pipe_fm_child);
-
- fflush(NULL);
- child = fork();
- if (child == -1) {
- perror_msg_and_die("fork");
- }
- if (child == 0) {
- /* Child */
-
- if (dir)
- xchdir(dir);
-
- if (flags & EXECFLG_SETGUID) {
- struct passwd* pw = getpwuid(uid);
- gid_t gid = pw ? pw->pw_gid : uid;
- setgroups(1, &gid);
- xsetregid(gid, gid);
- xsetreuid(uid, uid);
- }
-
- if (unsetenv_vec) {
- while (*unsetenv_vec)
- unsetenv(*unsetenv_vec++);
- }
-
- /* Play with stdio descriptors */
- if (flags & EXECFLG_INPUT) {
- xmove_fd(pipe_to_child[0], STDIN_FILENO);
- close(pipe_to_child[1]);
- } else if (flags & EXECFLG_INPUT_NUL) {
- xmove_fd(xopen("/dev/null", O_RDWR), STDIN_FILENO);
- }
- if (flags & EXECFLG_OUTPUT) {
- xmove_fd(pipe_fm_child[1], STDOUT_FILENO);
- close(pipe_fm_child[0]);
- } else if (flags & EXECFLG_OUTPUT_NUL) {
- xmove_fd(xopen("/dev/null", O_RDWR), STDOUT_FILENO);
- }
-
- /* This should be done BEFORE stderr redirect */
- VERB1 log("Executing: %s", concat_str_vector(argv).c_str());
-
- if (flags & EXECFLG_ERR2OUT) {
- /* Want parent to see errors in the same stream */
- xdup2(STDOUT_FILENO, STDERR_FILENO);
- } else if (flags & EXECFLG_ERR_NUL) {
- xmove_fd(xopen("/dev/null", O_RDWR), STDERR_FILENO);
- }
-
- if (flags & EXECFLG_SETSID)
- setsid();
-
- execvp(argv[0], argv);
- if (!(flags & EXECFLG_QUIET))
- perror_msg("Can't execute '%s'", argv[0]);
- exit(127); /* shell uses this exitcode in this case */
- }
-
- if (flags & EXECFLG_INPUT) {
- close(pipe_to_child[0]);
- pipefds[1] = pipe_to_child[1];
- }
- if (flags & EXECFLG_OUTPUT) {
- close(pipe_fm_child[1]);
- pipefds[0] = pipe_fm_child[0];
- }
-
- return child;
-}
-
-char *run_in_shell_and_save_output(int flags,
- const char *cmd,
- const char *dir,
- size_t *size_p)
-{
- flags |= EXECFLG_OUTPUT;
- flags &= ~EXECFLG_INPUT;
-
- const char *argv[] = { "/bin/sh", "-c", cmd, NULL };
- int pipeout[2];
- pid_t child = fork_execv_on_steroids(flags, (char **)argv, pipeout,
- /*unsetenv_vec:*/ NULL, dir, /*uid (unused):*/ 0);
-
- size_t pos = 0;
- char *result = NULL;
- while (1) {
- result = (char*) xrealloc(result, pos + 4*1024 + 1);
- size_t sz = safe_read(pipeout[0], result + pos, 4*1024);
- if (sz <= 0) {
- break;
- }
- pos += sz;
- }
- result[pos] = '\0';
- if (size_p)
- *size_p = pos;
- close(pipeout[0]);
- waitpid(child, NULL, 0);
-
- return result;
-}