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correct variadic prototypes for execl* family

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the old versions worked, but conflicted with programs which declared
their own prototypes and generated warnings with some versions of gcc.
This commit is contained in:
Rich Felker
2011-04-27 16:06:33 -04:00
parent 22263709ed
commit e6bac87d0e
4 changed files with 21 additions and 18 deletions
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11
src/process/execl.c
View File

@ -1,18 +1,19 @@
#include <unistd.h>
#include <stdarg.h>
int execl(const char *path, ...)
int execl(const char *path, const char *argv0, ...)
{
int argc;
va_list ap;
va_start(ap, path);
for (argc=0; va_arg(ap, const char *); argc++);
va_start(ap, argv0);
for (argc=1; va_arg(ap, const char *); argc++);
va_end(ap);
{
int i;
char *argv[argc+1];
va_start(ap, path);
for (i=0; i<argc; i++)
va_start(ap, argv0);
argv[0] = (char *)argv0;
for (i=1; i<argc; i++)
argv[i] = va_arg(ap, char *);
argv[i] = NULL;
return execv(path, argv);

11
src/process/execle.c
View File

@ -1,19 +1,20 @@
#include <unistd.h>
#include <stdarg.h>
int execle(const char *path, ...)
int execle(const char *path, const char *argv0, ...)
{
int argc;
va_list ap;
va_start(ap, path);
for (argc=0; va_arg(ap, const char *); argc++);
va_start(ap, argv0);
for (argc=1; va_arg(ap, const char *); argc++);
va_end(ap);
{
int i;
char *argv[argc+1];
char **envp;
va_start(ap, path);
for (i=0; i<argc; i++)
va_start(ap, argv0);
argv[0] = (char *)argv0;
for (i=1; i<argc; i++)
argv[i] = va_arg(ap, char *);
argv[i] = NULL;
envp = va_arg(ap, char **);

11
src/process/execlp.c
View File

@ -1,18 +1,19 @@
#include <unistd.h>
#include <stdarg.h>
int execlp(const char *file, ...)
int execlp(const char *file, const char *argv0, ...)
{
int argc;
va_list ap;
va_start(ap, file);
for (argc=0; va_arg(ap, const char *); argc++);
va_start(ap, argv0);
for (argc=1; va_arg(ap, const char *); argc++);
va_end(ap);
{
int i;
char *argv[argc+1];
va_start(ap, file);
for (i=0; i<argc; i++)
va_start(ap, argv0);
argv[0] = (char *)argv0;
for (i=1; i<argc; i++)
argv[i] = va_arg(ap, char *);
argv[i] = NULL;
return execvp(file, argv);