Blame src/helper/slbt_copy_file.c

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/*******************************************************************/
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/*  slibtool: a skinny libtool implementation, written in C        */
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/*  Copyright (C) 2016--2024  SysDeer Technologies, LLC            */
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/*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
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/*******************************************************************/
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#include <slibtool/slibtool.h>
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#include "slibtool_driver_impl.h"
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#include "slibtool_spawn_impl.h"
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#include "slibtool_symlink_impl.h"
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#include "slibtool_errinfo_impl.h"
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int slbt_copy_file(
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	const struct slbt_driver_ctx *	dctx,
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	struct slbt_exec_ctx *		ectx,
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	char *				src,
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	char *				dst)
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{
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	int	fdcwd;
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	char **	oargv;
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	char *	oprogram;
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	char *	cp[4];
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	int	ret;
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	/* fdcwd */
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	fdcwd = slbt_driver_fdcwd(dctx);
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	/* placeholder? */
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	if (slbt_symlink_is_a_placeholder(fdcwd,src))
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		return 0;
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	/* cp argv */
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	cp[0] = "cp";
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	cp[1] = src;
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	cp[2] = dst;
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	cp[3] = 0;
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	/* alternate argument vector */
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	oprogram      = ectx->program;
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	oargv         = ectx->argv;
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	ectx->argv    = cp;
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	ectx->program = "cp";
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	/* step output */
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	if (!(dctx->cctx->drvflags & SLBT_DRIVER_SILENT)) {
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		if (dctx->cctx->mode == SLBT_MODE_LINK) {
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			if (slbt_output_link(dctx,ectx)) {
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				ectx->argv = oargv;
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				ectx->program = oprogram;
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				return SLBT_NESTED_ERROR(dctx);
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			}
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		} else {
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			if (slbt_output_install(dctx,ectx)) {
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				ectx->argv = oargv;
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				ectx->program = oprogram;
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				return SLBT_NESTED_ERROR(dctx);
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			}
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		}
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	}
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	/* cp spawn */
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	if ((slbt_spawn(ectx,true) < 0) && (ectx->pid < 0)) {
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		ret = SLBT_SPAWN_ERROR(dctx);
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	} else if (ectx->exitcode) {
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		ret = SLBT_CUSTOM_ERROR(
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			dctx,
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			SLBT_ERR_COPY_ERROR);
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	} else {
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		ret = 0;
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	}
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	ectx->argv = oargv;
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	ectx->program = oprogram;
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	return ret;
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}