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rpm/build/parseScript.c

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/** \ingroup rpmbuild
* \file build/parseScript.c
* Parse install-time script section from spec file.
*/
#include "system.h"
#include <rpm/header.h>
#include <rpm/rpmbuild.h>
#include <rpm/rpmlog.h>
#include "rpmio/rpmlua.h"
#include "debug.h"
/**
*/
static int addTriggerIndex(Package pkg, const char *file,
const char *script, const char *prog)
{
struct TriggerFileEntry *tfe;
struct TriggerFileEntry *list = pkg->triggerFiles;
struct TriggerFileEntry *last = NULL;
int index = 0;
while (list) {
last = list;
list = list->next;
}
if (last)
index = last->index + 1;
tfe = xcalloc(1, sizeof(*tfe));
tfe->fileName = (file) ? xstrdup(file) : NULL;
tfe->script = (script && *script != '\0') ? xstrdup(script) : NULL;
tfe->prog = xstrdup(prog);
tfe->index = index;
tfe->next = NULL;
if (last)
last->next = tfe;
else
pkg->triggerFiles = tfe;
return index;
}
/* these have to be global because of stupid compilers */
static const char *name = NULL;
static const char *prog = NULL;
static const char *file = NULL;
static struct poptOption optionsTable[] = {
{ NULL, 'p', POPT_ARG_STRING, &prog, 'p', NULL, NULL},
{ NULL, 'n', POPT_ARG_STRING, &name, 'n', NULL, NULL},
{ NULL, 'f', POPT_ARG_STRING, &file, 'f', NULL, NULL},
{ 0, 0, 0, 0, 0, NULL, NULL}
};
/* %trigger is a strange combination of %pre and Requires: behavior */
/* We can handle it by parsing the args before "--" in parseScript. */
/* We then pass the remaining arguments to parseRCPOT, along with */
/* an index we just determined. */
int parseScript(rpmSpec spec, int parsePart)
{
/* There are a few options to scripts: */
/* <pkg> */
/* -n <pkg> */
/* -p <sh> */
/* -p "<sh> <args>..." */
/* -f <file> */
char *p;
const char **progArgv = NULL;
int progArgc;
const char *partname = NULL;
rpmTag reqtag = 0;
rpmTag tag = 0;
rpmsenseFlags tagflags = 0;
rpmTag progtag = 0;
int flag = PART_SUBNAME;
Package pkg;
StringBuf sb = NULL;
int nextPart;
int index;
char * reqargs = NULL;
int res = PART_ERROR; /* assume failure */
int rc, argc;
int arg;
const char **argv = NULL;
poptContext optCon = NULL;
name = NULL;
prog = "/bin/sh";
file = NULL;
switch (parsePart) {
case PART_PRE:
tag = RPMTAG_PREIN;
tagflags = RPMSENSE_SCRIPT_PRE;
progtag = RPMTAG_PREINPROG;
partname = "%pre";
break;
case PART_POST:
tag = RPMTAG_POSTIN;
tagflags = RPMSENSE_SCRIPT_POST;
progtag = RPMTAG_POSTINPROG;
partname = "%post";
break;
case PART_PREUN:
tag = RPMTAG_PREUN;
tagflags = RPMSENSE_SCRIPT_PREUN;
progtag = RPMTAG_PREUNPROG;
partname = "%preun";
break;
case PART_POSTUN:
tag = RPMTAG_POSTUN;
tagflags = RPMSENSE_SCRIPT_POSTUN;
progtag = RPMTAG_POSTUNPROG;
partname = "%postun";
break;
case PART_PRETRANS:
tag = RPMTAG_PRETRANS;
tagflags = 0;
progtag = RPMTAG_PRETRANSPROG;
partname = "%pretrans";
break;
case PART_POSTTRANS:
tag = RPMTAG_POSTTRANS;
tagflags = 0;
progtag = RPMTAG_POSTTRANSPROG;
partname = "%posttrans";
break;
case PART_VERIFYSCRIPT:
tag = RPMTAG_VERIFYSCRIPT;
tagflags = RPMSENSE_SCRIPT_VERIFY;
progtag = RPMTAG_VERIFYSCRIPTPROG;
partname = "%verifyscript";
break;
case PART_TRIGGERPREIN:
tag = RPMTAG_TRIGGERSCRIPTS;
tagflags = 0;
reqtag = RPMTAG_TRIGGERPREIN;
progtag = RPMTAG_TRIGGERSCRIPTPROG;
partname = "%triggerprein";
break;
case PART_TRIGGERIN:
tag = RPMTAG_TRIGGERSCRIPTS;
tagflags = 0;
reqtag = RPMTAG_TRIGGERIN;
progtag = RPMTAG_TRIGGERSCRIPTPROG;
partname = "%triggerin";
break;
case PART_TRIGGERUN:
tag = RPMTAG_TRIGGERSCRIPTS;
tagflags = 0;
reqtag = RPMTAG_TRIGGERUN;
progtag = RPMTAG_TRIGGERSCRIPTPROG;
partname = "%triggerun";
break;
case PART_TRIGGERPOSTUN:
tag = RPMTAG_TRIGGERSCRIPTS;
tagflags = 0;
reqtag = RPMTAG_TRIGGERPOSTUN;
progtag = RPMTAG_TRIGGERSCRIPTPROG;
partname = "%triggerpostun";
break;
}
if (tag == RPMTAG_TRIGGERSCRIPTS) {
/* break line into two */
p = strstr(spec->line, "--");
if (!p) {
rpmlog(RPMLOG_ERR, _("line %d: triggers must have --: %s\n"),
spec->lineNum, spec->line);
return PART_ERROR;
}
*p = '\0';
reqargs = xstrdup(p + 2);
}
if ((rc = poptParseArgvString(spec->line, &argc, &argv))) {
rpmlog(RPMLOG_ERR, _("line %d: Error parsing %s: %s\n"),
spec->lineNum, partname, poptStrerror(rc));
goto exit;
}
optCon = poptGetContext(NULL, argc, argv, optionsTable, 0);
while ((arg = poptGetNextOpt(optCon)) > 0) {
switch (arg) {
case 'p':
if (prog[0] == '<') {
if (prog[strlen(prog)-1] != '>') {
rpmlog(RPMLOG_ERR,
_("line %d: internal script must end "
"with \'>\': %s\n"), spec->lineNum, prog);
goto exit;
}
} else if (prog[0] != '/') {
rpmlog(RPMLOG_ERR,
_("line %d: script program must begin "
"with \'/\': %s\n"), spec->lineNum, prog);
goto exit;
}
break;
case 'n':
flag = PART_NAME;
break;
}
}
if (arg < -1) {
rpmlog(RPMLOG_ERR, _("line %d: Bad option %s: %s\n"),
spec->lineNum,
poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
spec->line);
goto exit;
}
if (poptPeekArg(optCon)) {
if (name == NULL)
name = poptGetArg(optCon);
if (poptPeekArg(optCon)) {
rpmlog(RPMLOG_ERR, _("line %d: Too many names: %s\n"),
spec->lineNum,
spec->line);
goto exit;
}
}
if (lookupPackage(spec, name, flag, &pkg)) {
rpmlog(RPMLOG_ERR, _("line %d: Package does not exist: %s\n"),
spec->lineNum, spec->line);
goto exit;
}
if (tag != RPMTAG_TRIGGERSCRIPTS) {
if (headerIsEntry(pkg->header, progtag)) {
rpmlog(RPMLOG_ERR, _("line %d: Second %s\n"),
spec->lineNum, partname);
goto exit;
}
}
if ((rc = poptParseArgvString(prog, &progArgc, &progArgv))) {
rpmlog(RPMLOG_ERR, _("line %d: Error parsing %s: %s\n"),
spec->lineNum, partname, poptStrerror(rc));
goto exit;
}
sb = newStringBuf();
if ((rc = readLine(spec, STRIP_NOTHING)) > 0) {
nextPart = PART_NONE;
} else if (rc < 0) {
goto exit;
} else {
while (! (nextPart = isPart(spec->line))) {
appendStringBuf(sb, spec->line);
if ((rc = readLine(spec, STRIP_NOTHING)) > 0) {
nextPart = PART_NONE;
break;
} else if (rc < 0) {
goto exit;
}
}
}
stripTrailingBlanksStringBuf(sb);
p = getStringBuf(sb);
#ifdef WITH_LUA
if (!strcmp(progArgv[0], "<lua>")) {
rpmlua lua = NULL; /* Global state. */
if (rpmluaCheckScript(lua, p, partname) != RPMRC_OK) {
goto exit;
}
(void) rpmlibNeedsFeature(pkg->header,
"BuiltinLuaScripts", "4.2.2-1");
} else
#endif
if (progArgv[0][0] == '<') {
rpmlog(RPMLOG_ERR,
_("line %d: unsupported internal script: %s\n"),
spec->lineNum, progArgv[0]);
goto exit;
} else {
(void) addReqProv(spec, pkg->header, RPMTAG_REQUIRENAME,
progArgv[0], NULL, (tagflags | RPMSENSE_INTERP), 0);
}
/* Trigger script insertion is always delayed in order to */
/* get the index right. */
if (tag == RPMTAG_TRIGGERSCRIPTS) {
/* Add file/index/prog triple to the trigger file list */
index = addTriggerIndex(pkg, file, p, progArgv[0]);
/* Generate the trigger tags */
if ((rc = parseRCPOT(spec, pkg, reqargs, reqtag, index, tagflags)))
goto exit;
} else {
struct rpmtd_s td;
/*
* XXX Ancient rpm uses STRING, not STRING_ARRAY type here. Construct
* the td manually and preserve legacy compat for now...
*/
rpmtdReset(&td);
td.tag = progtag;
td.count = progArgc;
if (progArgc == 1) {
td.data = (void *) *progArgv;
td.type = RPM_STRING_TYPE;
} else {
(void) rpmlibNeedsFeature(pkg->header,
"ScriptletInterpreterArgs", "4.0.3-1");
td.data = progArgv;
td.type = RPM_STRING_ARRAY_TYPE;
}
headerPut(pkg->header, &td, HEADERPUT_DEFAULT);
if (*p != '\0') {
headerPutString(pkg->header, tag, p);
}
if (file) {
switch (parsePart) {
case PART_PRE:
pkg->preInFile = xstrdup(file);
break;
case PART_POST:
pkg->postInFile = xstrdup(file);
break;
case PART_PREUN:
pkg->preUnFile = xstrdup(file);
break;
case PART_POSTUN:
pkg->postUnFile = xstrdup(file);
break;
case PART_PRETRANS:
pkg->preTransFile = xstrdup(file);
break;
case PART_POSTTRANS:
pkg->postTransFile = xstrdup(file);
break;
case PART_VERIFYSCRIPT:
pkg->verifyFile = xstrdup(file);
break;
}
}
}
res = nextPart;
exit:
free(reqargs);
sb = freeStringBuf(sb);
progArgv = _free(progArgv);
argv = _free(argv);
optCon = poptFreeContext(optCon);
return res;
}
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