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dd5b638471
these functions are specified to fail with EBADF on negative fd arguments. apart from close, they are also specified to fail if the value exceeds OPEN_MAX, but as written it is not clear that this imposes any requirement when OPEN_MAX is not defined, and it's undesirable to impose a dynamic limit (via setrlimit) here since the limit at the time of posix_spawn may be different from the limit at the time of setting up the file actions. this may require revisiting later.
21 lines
548 B
C
21 lines
548 B
C
#include <spawn.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "fdop.h"
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int posix_spawn_file_actions_addopen(posix_spawn_file_actions_t *restrict fa, int fd, const char *restrict path, int flags, mode_t mode)
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{
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if (fd < 0) return EBADF;
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struct fdop *op = malloc(sizeof *op + strlen(path) + 1);
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if (!op) return ENOMEM;
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op->cmd = FDOP_OPEN;
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op->fd = fd;
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op->oflag = flags;
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op->mode = mode;
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strcpy(op->path, path);
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if ((op->next = fa->__actions)) op->next->prev = op;
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op->prev = 0;
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fa->__actions = op;
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return 0;
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}
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