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Add a perror() function

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This commit is contained in:
apio 2022-10-08 12:42:25 +02:00
parent d6f45c284e
commit ee7558a9b7
2 changed files with 7 additions and 0 deletions
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1
libs/libc/include/stdio.h
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@ -35,6 +35,7 @@ extern "C"
int vsprintf(char*, const char*, va_list); int vsprintf(char*, const char*, va_list);
int vsnprintf(char*, size_t, const char*, va_list); int vsnprintf(char*, size_t, const char*, va_list);
int puts(const char*); int puts(const char*);
void perror(const char*);
#ifdef __cplusplus #ifdef __cplusplus
} }

6
libs/libc/src/stdio.cpp
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@ -1,3 +1,4 @@
#include <errno.h>
#include <luna.h> #include <luna.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
@ -78,4 +79,9 @@ extern "C"
va_end(ap); va_end(ap);
return written; return written;
} }
void perror(const char* s) // FIXME: Print to stderr, whenever we have an stderr.
{
if (s && *s) { printf("%s: ", s); }
printf("%s\n", strerror(errno));
}
} }