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/** \ingroup rpmio
* \file rpmio/argv.c
*/
#include "system.h"
#include <argv.h>
#include "debug.h"
/*@-bounds@*/
/**
* Wrapper to free(3), hides const compilation noise, permit NULL, return NULL.
* @param p memory to free
* @return NULL always
*/
/*@unused@*/ static inline /*@null@*/
void * _free(/*@only@*/ /*@null@*/ /*@out@*/ const void * p)
/*@modifies p @*/
{
if (p != NULL) free((void *)p);
return NULL;
}
void argvPrint(const char * msg, ARGV_t argv, FILE * fp)
{
ARGV_t av;
if (fp == NULL) fp = stderr;
if (msg)
fprintf(fp, "===================================== %s\n", msg);
if (argv)
for (av = argv; *av; av++)
fprintf(fp, "%s\n", *av);
}
ARGI_t argiFree(ARGI_t argi)
{
if (argi) {
argi->nvals = 0;
argi->vals = _free(argi->vals);
}
argi = _free(argi);
return NULL;
}
ARGV_t argvFree(/*@only@*/ /*@null@*/ ARGV_t argv)
{
ARGV_t av;
/*@-branchstate@*/
if (argv)
for (av = argv; *av; av++)
*av = _free(*av);
/*@=branchstate@*/
argv = _free(argv);
return NULL;
}
int argiCount(ARGI_t argi)
{
int nvals = 0;
if (argi)
nvals = argi->nvals;
return nvals;
}
const ARGint_t argiData(const ARGI_t argi)
{
ARGint_t vals = NULL;
if (argi && argi->nvals > 0)
vals = argi->vals;
return vals;
}
int argvCount(const ARGV_t argv)
{
int argc = 0;
if (argv)
while (argv[argc] != NULL)
argc++;
return argc;
}
const ARGV_t argvData(const ARGV_t argv)
{
/*@-retalias -temptrans @*/
return argv;
/*@=retalias =temptrans @*/
}
int argvCmp(const void * a, const void * b)
{
/*@-boundsread@*/
ARGstr_t astr = *(ARGV_t)a;
ARGstr_t bstr = *(ARGV_t)b;
/*@=boundsread@*/
return strcmp(astr, bstr);
}
int argvSort(ARGV_t argv, int (*compar)(const void *, const void *))
{
if (compar == NULL)
compar = argvCmp;
qsort(argv, argvCount(argv), sizeof(*argv), compar);
return 0;
}
ARGV_t argvSearch(ARGV_t argv, ARGstr_t val,
int (*compar)(const void *, const void *))
{
if (argv == NULL)
return NULL;
if (compar == NULL)
compar = argvCmp;
return bsearch(&val, argv, argvCount(argv), sizeof(*argv), compar);
}
int argiAdd(/*@out@*/ ARGI_t * argip, int ix, int val)
{
ARGI_t argi;
if (argip == NULL)
return -1;
if (*argip == NULL)
*argip = xcalloc(1, sizeof(**argip));
argi = *argip;
if (ix < 0)
ix = argi->nvals;
if (ix >= argi->nvals) {
argi->vals = xrealloc(argi->vals, (ix + 1) * sizeof(*argi->vals));
memset(argi->vals + argi->nvals, 0,
(ix - argi->nvals) * sizeof(*argi->vals));
argi->nvals = ix + 1;
}
argi->vals[ix] = val;
return 0;
}
int argvAdd(/*@out@*/ ARGV_t * argvp, ARGstr_t val)
{
ARGV_t argv;
int argc;
if (argvp == NULL)
return -1;
argc = argvCount(*argvp);
/*@-unqualifiedtrans@*/
*argvp = xrealloc(*argvp, (argc + 1 + 1) * sizeof(**argvp));
/*@=unqualifiedtrans@*/
argv = *argvp;
argv[argc++] = xstrdup(val);
argv[argc ] = NULL;
return 0;
}
int argvAppend(/*@out@*/ ARGV_t * argvp, const ARGV_t av)
{
ARGV_t argv = *argvp;
int argc = argvCount(argv);
int ac = argvCount(av);
int i;
argv = xrealloc(argv, (argc + ac + 1) * sizeof(*argv));
for (i = 0; i < ac; i++)
argv[argc + i] = xstrdup(av[i]);
argv[argc + ac] = NULL;
*argvp = argv;
return 0;
}
int argvSplit(ARGV_t * argvp, const char * str, const char * seps)
{
char * dest = alloca(strlen(str) + 1);
ARGV_t argv;
int argc = 1;
const char * s;
char * t;
int c;
for (argc = 1, s = str, t = dest; (c = *s); s++, t++) {
if (strchr(seps, c)) {
argc++;
c = '\0';
}
*t = c;
}
*t = '\0';
argv = xmalloc( (argc + 1) * sizeof(*argv));
for (c = 0, s = dest; s < t; s+= strlen(s) + 1) {
if (*s == '\0')
continue;
argv[c] = xstrdup(s);
c++;
}
argv[c] = NULL;
*argvp = argv;
/*@-nullstate@*/
return 0;
/*@=nullstate@*/
}
/*@=bounds@*/
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