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#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "env2argv.h"
#define ARGS_NAME "ENV_ARGS"
// Add list of argv's from environment to argv[].
// Result: argv[0] + ENV_ARGS[@] + argv[1..n]
void
env2argv(int *argcptr, char **argvptr[]) {
char *str_orig = getenv(ARGS_NAME);
char *str = NULL;
char *next;
char **newargv = NULL;
int newargc = 0;
if ((str_orig == NULL) || (*str_orig == '\0'))
return;
str = strdup(str_orig);
next = str;
newargv = malloc(1 * sizeof *argvptr);
memcpy(&newargv[0], argvptr[0], 1 * sizeof *argvptr);
newargc = 1;
while (next != NULL) {
while (*str == ' ')
str++;
next = strchr(str, ' ');
if (next != NULL) {
*next = 0;
next++;
}
// catch if last character is ' '
if (strlen(str) > 0) {
/* *next == '\0'; str points to argument (0-terminated) */
newargc++;
// DEBUGF("%d. arg = '%s'\n", newargc, str);
newargv = realloc(newargv, newargc * sizeof newargv);
newargv[newargc - 1] = str;
}
str = next;
if (str == NULL)
break;
}
// Copy original argv[1..n]
newargv = realloc(newargv, (newargc + *argcptr) * sizeof newargv);
memcpy(newargv + newargc, *argvptr + 1, (*argcptr - 1) * sizeof *argvptr);
newargc += (*argcptr - 1);
newargv[newargc] = NULL;
*argcptr = newargc;
*argvptr = newargv;
}
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