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-rw-r--r--run-command.c30
1 files changed, 29 insertions, 1 deletions
diff --git a/run-command.c b/run-command.c
index d8d1437..1c7a3b6 100644
--- a/run-command.c
+++ b/run-command.c
@@ -238,6 +238,12 @@ 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);
@@ -246,6 +252,20 @@ static void prepare_cmd(struct argv_array *out, const struct child_process *cmd)
} else {
argv_array_pushv(out, cmd->argv);
}
+
+ /*
+ * 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.
+ */
+ if (!strchr(out->argv[1], '/')) {
+ char *program = locate_in_PATH(out->argv[1]);
+ if (program) {
+ free((char *)out->argv[1]);
+ out->argv[1] = program;
+ }
+ }
}
#endif
@@ -445,7 +465,15 @@ fail_pipe:
}
}
- sane_execvp(argv.argv[0], (char *const *) argv.argv);
+ /*
+ * 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'.
+ */
+ execv(argv.argv[1], (char *const *) argv.argv + 1);
+ if (errno == ENOEXEC)
+ execv(argv.argv[0], (char *const *) argv.argv);
if (errno == ENOENT) {
if (!cmd->silent_exec_failure)