diff options
Diffstat (limited to 'libxml2/os400/xmlcatlgcl.c')
| -rw-r--r-- | libxml2/os400/xmlcatlgcl.c | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/libxml2/os400/xmlcatlgcl.c b/libxml2/os400/xmlcatlgcl.c new file mode 100644 index 0000000..6f1e4ff --- /dev/null +++ b/libxml2/os400/xmlcatlgcl.c @@ -0,0 +1,288 @@ +/** +*** XMLCATALOG command response program. +*** +*** See Copyright for the status of this software. +*** +*** Author: Patrick Monnerat <pm@datasphere.ch>, DATASPHERE S.A. +**/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <qshell.h> + + +/* Variable-length string, with 16-bit length. */ +typedef struct { + short len; + char string[5000]; +} vary2; + + +/* Variable-length string, with 32-bit length. */ +typedef struct { + int len; + char string[5000]; +} vary4; + + +/* Multiple occurrence parameter list. */ +#define paramlist(itemsize, itemtype) \ + _Packed struct { \ + short len; \ + _Packed union { \ + char _pad[itemsize]; \ + itemtype param; \ + } item[1]; \ + } + +/* Add element list structure. */ +typedef struct { + short elcount; /* Element count (=3). */ + paramlist(16, char) type; /* vary2(16). */ + paramlist(256, char) origin; /* vary2(256). */ + paramlist(256, char) replace; /* vary2(256). */ +} addelement; + +/* SGML add element list structure. */ +typedef struct { + short elcount; /* Element count (=3). */ + paramlist(256, char) catalog; /* vary2(256). */ + paramlist(256, char) ident; /* vary2(256). */ +} sgmladdelement; + + +/* Arguments from CL command. */ +typedef struct { + char * pgm; /* Program name. */ + vary2 * instmf; /* Input catalog file name. */ + vary2 * kind; /* Catalog kind. */ + vary2 * outstmf; /* Output catalog file name. */ + vary2 * convert; /* Convert SGML to XML. */ + vary2 * superupd; /* --no-super-update. */ + vary2 * verbose; /* Verbose output. */ + paramlist(256 + 2, vary2) * delete; /* Identifiers to delete. */ + paramlist(2, unsigned short) * add; /* Items to add. */ + paramlist(2, unsigned short) * sgmladd; /* SGML items to add. */ + paramlist(256 + 2, vary2) * resolve; /* Identifiers to resolve. */ + paramlist(5000 + 2, vary2) * catalog; /* Additional catalog files. */ +} arguments; + + +/* Definition of QSHELL program. */ +extern void qshell(vary4 * cmd); +#pragma linkage(qshell, OS) +#pragma map(qshell, "QSHELL/QZSHQSHC") + +/* Macro to handle displacements. */ +#define OFFSETBY(t, p, n) ((t *) (((char *) (p)) + (n))) + + +static void +vary4nappend(vary4 * dst, const char * src, size_t len) + +{ + if (len > sizeof(dst->string) - dst->len) + len = sizeof(dst->string) - dst->len; + + if (len) { + memcpy(dst->string + dst->len, src, len); + dst->len += len; + } +} + + +static void +vary4append(vary4 * dst, const char * src) + +{ + vary4nappend(dst, src, strlen(src)); +} + + +static void +vary4arg(vary4 * dst, const char * arg) + +{ + vary4nappend(dst, " ", 1); + vary4append(dst, arg); +} + + +static void +vary4varg(vary4 * dst, vary2 * arg) + +{ + vary4nappend(dst, " ", 1); + vary4nappend(dst, arg->string, arg->len); +} + + +static void +vary4vescape(vary4 * dst, vary2 * arg) + +{ + int i; + + for (i = 0; i < arg->len; i++) + if (arg->string[i] == '\'') + vary4nappend(dst, "'\"'\"'", 5); + else + vary4nappend(dst, arg->string + i, 1); +} + + +static void +vary4vargquote(vary4 * dst, vary2 * arg) + +{ + vary4nappend(dst, " '", 2); + vary4vescape(dst, arg); + vary4nappend(dst, "'", 1); +} + + +int +main(int argsc, arguments * args) + +{ + vary4 cmd; + int i; + char c; + addelement * aelp; + sgmladdelement * saelp; + + /* Specify additional catalogs. */ + cmd.len = 0; + if (args->catalog->len) { + for (i = 0; i < args->catalog->len && + !args->catalog->item[i].param.len; i++) + ; + + vary4append(&cmd, "XML_CATALOG_FILES="); + if (i < args->catalog->len) { + c = '\''; + for (i = 0; i < args->catalog->len; i++) { + if (!args->catalog->item[i].param.len) + continue; + vary4nappend(&cmd, &c, 1); + c = ' '; + vary4vescape(&cmd, + &args->catalog->item[i].param); + } + vary4nappend(&cmd, "'", 1); + } + vary4nappend(&cmd, " ", 1); + } + + /* find length of library name. */ + for (i = 0; i < 10 && args->pgm[i] && args->pgm[i] != '/'; i++) + ; + + /* Store program name in command buffer. */ + vary4append(&cmd, "/QSYS.LIB/"); + vary4nappend(&cmd, args->pgm, i); + vary4append(&cmd, ".LIB/XMLCATALOG.PGM"); + + /* Map command arguments to standard xmlcatalog argument vector. */ + if (args->kind && args->kind->len) + vary4varg(&cmd, args->kind); + + if (args->verbose && args->verbose->len) + vary4varg(&cmd, args->verbose); + + if (args->delete) + for (i = 0; i < args->delete->len; i++) { + vary4arg(&cmd, "--del"); + vary4vargquote(&cmd, &args->delete->item[i].param); + } + + if (args->kind && args->kind->len) { + /* Process SGML-specific parameters. */ + if (args->superupd && args->superupd->len) + vary4varg(&cmd, args->superupd); + + if (args->sgmladd) + for (i = 0; i < args->sgmladd->len; i++) { + saelp = OFFSETBY(sgmladdelement, args->sgmladd, + args->sgmladd->item[i].param); + if (!((vary2 *) &saelp->catalog)->len) + continue; + vary4arg(&cmd, "--add"); + vary4vargquote(&cmd, (vary2 *) &saelp->catalog); + vary4vargquote(&cmd, (vary2 *) &saelp->ident); + } + } + else { + /* Process XML-specific parameters. */ + if (args->convert && args->convert->len) + vary4varg(&cmd, args->convert); + + if (args->add) + for (i = 0; i < args->add->len; i++) { + aelp = OFFSETBY(addelement, args->add, + args->add->item[i].param); + if (!((vary2 *) &aelp->origin)->len) + continue; + vary4arg(&cmd, "--add"); + vary4varg(&cmd, (vary2 *) &aelp->type); + vary4vargquote(&cmd, (vary2 *) &aelp->origin); + vary4vargquote(&cmd, (vary2 *) &aelp->replace); + } + } + + /* Avoid INSTMF(*NEW) and OUTSMTF(*INSTMF). */ + if (args->outstmf && args->outstmf->len && !args->outstmf->string[0]) + if (args->instmf && args->instmf->len) + args->outstmf = args->instmf; + else + args->outstmf = NULL; + + /* If INSTMF(*NEW) and OUTSTMF(somepath), Use --create --noout and + somepath as (unexisting) input file. */ + if (args->outstmf && args->outstmf->len) + if (!args->instmf || !args->instmf->len) { + vary4arg(&cmd, "--create"); + vary4arg(&cmd, "--noout"); + args->instmf = args->outstmf; + args->outstmf = NULL; + } + + /* If output to input file, use --noout option. */ + if (args->instmf && args->outstmf && args->instmf->len && + args->instmf->len == args->outstmf->len && + !strncmp(args->instmf->string, args->outstmf->string, + args->instmf->len)) { + vary4arg(&cmd, "--noout"); + args->outstmf = NULL; + } + + /* If no input file create catalog, else specify the input file name. */ + /* Specify the input file name: my be a dummy one. */ + if (!args->instmf || !args->instmf->len) { + vary4arg(&cmd, "--create -"); + vary4arg(&cmd, ".dmyxmlcatalog"); + } + else { + vary4arg(&cmd, "-"); + vary4vargquote(&cmd, args->instmf); + } + + /* Query entities. */ + + if (args->resolve) + for (i = 0; i < args->resolve->len; i++) + vary4vargquote(&cmd, &args->resolve->item[i].param); + + /* Redirect output if requested. */ + if (args->outstmf && args->outstmf->len) { + vary4arg(&cmd, ">"); + vary4vargquote(&cmd, args->outstmf); + } + + /* Execute the shell command. */ + qshell(&cmd); + + /* Terminate. */ + exit(0); +} |